Generate record accessors automatically

3 files changed, 5922 insertions, 760 deletions

diff --git a/Rakefile b/Rakefile
index 9d866ea..ec3ae04 100644
--- a/Rakefile
+++ b/Rakefile
@@ -41,17 +41,43 @@ end
 
 desc 'Convert previous stage language into the current stage language'
 task :convert do
-  File.open('boot/stage14.elna', 'w') do |current_stage|
-    previous_line = nil
-
-    File.readlines('boot/stage13.elna').each do |line|
-      if !previous_line.nil? && previous_line.start_with?('begin') && line.strip.start_with?('return')
-      else
-        current_stage << previous_line unless previous_line.nil?
+  File.open('boot/stage16.elna', 'w') do |current_stage|
+    skip = false
+
+    File.readlines('boot/stage15.elna').each do |line|
+      if line.strip == 'type'
+        current_stage << <<~SNIP
+          type
+          	_elna_tac_declaration = record
+          		next: Word;
+          		name: Word;
+          		length: Word;
+          		body: Word
+          	end;
+		_integer_literal_node = record
+			kind: Word;
+			value: Word;
+			length: Word
+		end;
+        SNIP
+      elsif line.start_with?('proc _elna_tac_declaration_size')
+        skip = true
+      elsif line.start_with?('proc _elna_tac_declaration_get_')
+        skip = true
+      elsif line.start_with?('proc _elna_tac_declaration_set_')
+        skip = true
+      elsif line.start_with?('proc _integer_literal_node_size')
+        skip = true
+      elsif line.start_with?('proc _integer_literal_node_get_')
+        skip = true
+      elsif line.start_with?('proc _integer_literal_node_set_')
+        skip = true
+      elsif line.start_with?('end') && skip
+        skip = false
+      elsif !skip
+        current_stage << line
       end
-      previous_line = line
     end
-    current_stage << previous_line
   end
 end
 
diff --git a/boot/stage15.elna b/boot/stage15.elna
index c641a62..987d655 100644
--- a/boot/stage15.elna
+++ b/boot/stage15.elna
@@ -7,7 +7,7 @@
 (* Stage 15 compiler. *)
 
 type
-	LexerAction = (none, accumulate, skip, single, eof, finalize, composite, key_id, integer, delimited);
+	ElnaLexerAction = (none, accumulate, skip, single, eof, finalize, composite, key_id, integer, delimited);
 
 	(**
 	 * Classification table assigns each possible character to a group (class). All
@@ -18,7 +18,7 @@ type
 	 *   next_state: TransitionState
 	 * end;
 	 *)
-	LexerClass = (
+	ElnaLexerClass = (
 		invalid,
 		digit,
 		alpha,
@@ -42,7 +42,7 @@ type
 		less,
 		other
 	);
-	LexerState = (
+	ElnaLexerState = (
 		start,
 		colon,
 		identifier,
@@ -61,7 +61,7 @@ type
 		string_escape,
 		finish
 	);
-	LexerTokenKind = (
+	ElnaLexerKind = (
 		identifier,
 		_const,
 		_var,
@@ -77,7 +77,6 @@ type
 		_do,
 		_extern,
 		_record,
-		_union,
 		_true,
 		_false,
 		null,
@@ -148,10 +147,11 @@ type
 		enumeration_type_expression,
 		named_type_expression,
 		type_declaration,
-		module_declaration
+		module_declaration,
+		record_type_expression
 	);
 	InfoKind = (type_info, parameter_info, temporary_info, procedure_info);
-	TypeKind = (primitive, enumeration);
+	TypeKind = (primitive, enumeration, _record);
 	ElnaTacOperator = (
 		load_immediate,
 		load_address,
@@ -176,8 +176,9 @@ type
 		not,
 		jump,
 		beqz,
-		ret,
-		label
+		label,
+		start,
+		ret
 	);
 	ElnaTacOperand = (register, immediate, symbol, offset);
 	ElnaTacRegister = (
@@ -1101,20 +1102,20 @@ begin
 	elsif instruction_kind = ElnaTacOperator.beqz then
 		argument_count := 2;
 		_write_s("\tbeqz", 5)
+	elsif instruction_kind = ElnaTacOperator.start then
+		argument_count := 0;
+		_write_z("\taddi sp, sp, -128\n\tsw ra, 124(sp)\n\tsw s0, 120(sp)\n\taddi s0, sp, 128\0")
 	elsif instruction_kind = ElnaTacOperator.ret then
 		argument_count := 0;
-		_write_s("\tret", 4)
+		_write_z("\tlw ra, 124(sp)\n\tlw s0, 120(sp)\n\taddi sp, sp, 128\0")
 	end;
 	return argument_count
 end;
 
 proc _elna_writer_register(register: Word);
-var
-	number: Word;
 begin
 	_write_c('x');
-	number := register - 1;
-	_write_i(number)
+	_write_i(register - 1)
 end;
 
 proc _elna_writer_operand(instruction: Word, n: Word);
@@ -1191,18 +1192,6 @@ begin
 	end
 end;
 
-(* Write the prologue. *)
-proc _elna_writer_prologue();
-begin
-	_write_z("\taddi sp, sp, -128\n\tsw ra, 124(sp)\n\tsw s0, 120(sp)\n\taddi s0, sp, 128\n\0")
-end;
-
-(* Write the epilogue. *)
-proc _elna_writer_epilogue();
-begin
-	_write_z("\tlw ra, 124(sp)\n\tlw s0, 120(sp)\n\taddi sp, sp, 128\n\tret\n\0")
-end;
-
 proc _elna_writer_procedure(procedure: Word);
 var
 	name_pointer: Word;
@@ -1224,9 +1213,8 @@ begin
 	_write_s(name_pointer, name_length);
 	_write_z(":\n\0");
 
-	_elna_writer_prologue();
 	_elna_writer_instructions(body_statements);
-	_elna_writer_epilogue();
+	_write_z("\tret\n\0");
 
 	procedure := _elna_tac_declaration_get_next(procedure);
 	if procedure <> 0 then
@@ -1335,7 +1323,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_integer_literal();
+proc _elna_parser_integer_literal();
 var
 	integer_token: Word;
 	integer_length: Word;
@@ -1345,10 +1333,10 @@ begin
 	literal_size := _integer_literal_node_size();
 	result := _allocate(literal_size);
 
-	integer_token := _lexer_global_get_start();
-	integer_length := _lexer_global_get_end();
+	integer_token := _elna_lexer_global_get_start();
+	integer_length := _elna_lexer_global_get_end();
 	integer_length := integer_length -  integer_token;
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
 	_node_set_kind(result, NodeKind.integer_literal);
 	_integer_literal_node_set_value(result, integer_token);
@@ -1397,7 +1385,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_character_literal();
+proc _elna_parser_character_literal();
 var
 	character: Word;
 	character_length: Word;
@@ -1407,10 +1395,10 @@ begin
 	literal_size := _character_literal_node_size();
 	result := _allocate(literal_size);
 
-	character := _lexer_global_get_start();
-	character_length := _lexer_global_get_end();
+	character := _elna_lexer_global_get_start();
+	character_length := _elna_lexer_global_get_end();
 	character_length := character_length - character;
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
 	_node_set_kind(result, NodeKind.character_literal);
 	_integer_literal_node_set_value(result, character);
@@ -1467,17 +1455,17 @@ begin
 	return result
 end;
 
-proc _parse_variable_expression();
+proc _elna_parser_variable_expression();
 var
 	name: Word;
 	name_token: Word;
 	result: Word;
 	memory_size: Word;
 begin
-	name := _lexer_global_get_start();
-	name_token := _lexer_global_get_end();
+	name := _elna_lexer_global_get_start();
+	name_token := _elna_lexer_global_get_end();
 	name_token := name_token - name;
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
 	memory_size := _variable_expression_size();
 	result := _allocate(memory_size);
@@ -1536,7 +1524,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_string_literal();
+proc _elna_parser_string_literal();
 var
 	length: Word;
 	token_start: Word;
@@ -1546,9 +1534,9 @@ begin
 	memory_size := _string_literal_node_size();
 	result := _allocate(memory_size);
 
-	token_start := _lexer_global_get_start();
+	token_start := _elna_lexer_global_get_start();
 	length := _string_length(token_start);
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
 	_node_set_kind(result, NodeKind.string_literal);
 	_string_literal_node_set_value(result, token_start);
@@ -1579,23 +1567,23 @@ begin
 	return first_instruction
 end;
 
-proc _parse_simple_expression();
+proc _elna_parser_simple_expression();
 var
 	current_character: Word;
 	parser_node: Word;
 	token_kind: Word;
 begin
 	parser_node := 0;
-	_lexer_read_token(@token_kind);
-
-	if token_kind = LexerTokenKind.character then
-		parser_node := _parse_character_literal()
-	elsif token_kind = LexerTokenKind.integer then
-		parser_node := _parse_integer_literal()
-	elsif token_kind = LexerTokenKind.string then
-		parser_node := _parse_string_literal()
-	elsif token_kind = LexerTokenKind.identifier then
-		parser_node := _parse_variable_expression()
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.character then
+		parser_node := _elna_parser_character_literal()
+	elsif token_kind = ElnaLexerKind.integer then
+		parser_node := _elna_parser_integer_literal()
+	elsif token_kind = ElnaLexerKind.string then
+		parser_node := _elna_parser_string_literal()
+	elsif token_kind = ElnaLexerKind.identifier then
+		parser_node := _elna_parser_variable_expression()
 	end;
 	return parser_node
 end;
@@ -1616,7 +1604,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_dereference_expression(simple_expression: Word);
+proc _elna_parser_dereference_expression(simple_expression: Word);
 var
 	result: Word;
 	memory_size: Word;
@@ -1626,26 +1614,26 @@ begin
 
 	_node_set_kind(result, NodeKind.dereference_expression);
 	_dereference_expression_set_pointer(result, simple_expression);
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
 	return result
 end;
 
-proc _parse_designator();
+proc _elna_parser_designator();
 var
 	simple_expression: Word;
 	token_kind: Word;
 begin
-	simple_expression := _parse_simple_expression();
+	simple_expression := _elna_parser_simple_expression();
 
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind = LexerTokenKind.hat then
-		simple_expression := _parse_dereference_expression(simple_expression)
-	elsif token_kind = LexerTokenKind.dot then
-		simple_expression := _parse_field_access_expression(simple_expression)
-	elsif token_kind = LexerTokenKind.left_paren then
-		simple_expression := _parse_call(simple_expression)
+	if token_kind = ElnaLexerKind.hat then
+		simple_expression := _elna_parser_dereference_expression(simple_expression)
+	elsif token_kind = ElnaLexerKind.dot then
+		simple_expression := _elna_parser_field_access_expression(simple_expression)
+	elsif token_kind = ElnaLexerKind.left_paren then
+		simple_expression := _elna_parser_call(simple_expression)
 	end;
 	return simple_expression
 end;
@@ -1700,7 +1688,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_unary_expression();
+proc _elna_parser_unary_expression();
 var
 	token_kind: Word;
 	result: Word;
@@ -1708,20 +1696,20 @@ var
 	operand: Word;
 	operator: Word;
 begin
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
 	operator := 0;
 
-	if token_kind = LexerTokenKind.at then
+	if token_kind = ElnaLexerKind.at then
 		operator := '@'
-	elsif token_kind = LexerTokenKind.minus then
+	elsif token_kind = ElnaLexerKind.minus then
 		operator := '-'
-	elsif token_kind = LexerTokenKind.not then
+	elsif token_kind = ElnaLexerKind.not then
 		operator := '~'
 	end;
 	if operator <> 0 then
-		_lexer_skip_token()
+		_elna_lexer_skip_token()
 	end;
-	result := _parse_designator();
+	result := _elna_parser_designator();
 
 	if operator <> 0 then
 		operand := result;
@@ -1818,7 +1806,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_binary_expression();
+proc _elna_parser_binary_expression();
 var
 	lhs_node: Word;
 	rhs_node: Word;
@@ -1826,52 +1814,52 @@ var
 	memory_size: Word;
 	result: Word;
 begin
-	lhs_node := _parse_unary_expression();
+	lhs_node := _elna_parser_unary_expression();
 	rhs_node := 0;
-	_lexer_read_token(@token_kind);
-
-	if token_kind = LexerTokenKind.plus then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.minus then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.multiplication then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.and then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind._or then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind._xor then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.equals then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.remainder then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.division then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.less_than then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.greater_than then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.less_equal then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.not_equal then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
-	elsif token_kind = LexerTokenKind.greater_equal then
-		_lexer_skip_token();
-		rhs_node := _parse_unary_expression()
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.plus then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.minus then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.multiplication then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.and then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind._or then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind._xor then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.equals then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.remainder then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.division then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.less_than then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.greater_than then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.less_equal then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.not_equal then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.greater_equal then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
 	end;
 	if rhs_node <> 0 then
 		memory_size := _binary_expression_size();
@@ -1921,58 +1909,58 @@ begin
 		_elna_tac_instruction_set_next(current_instruction, instruction);
 		current_instruction := instruction;
 
-		if token_kind = LexerTokenKind.plus then
+		if token_kind = ElnaLexerKind.plus then
 			instruction := _elna_tac_add(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.minus then
+		elsif token_kind = ElnaLexerKind.minus then
 			instruction := _elna_tac_sub(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.multiplication then
+		elsif token_kind = ElnaLexerKind.multiplication then
 			instruction := _elna_tac_mul(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.and then
+		elsif token_kind = ElnaLexerKind.and then
 			instruction := _elna_tac_and(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind._or then
+		elsif token_kind = ElnaLexerKind._or then
 			instruction := _elna_tac_or(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind._xor then
+		elsif token_kind = ElnaLexerKind._xor then
 			instruction := _elna_tac_xor(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.equals then
+		elsif token_kind = ElnaLexerKind.equals then
 			instruction := _elna_tac_xor(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction);
 			current_instruction := instruction;
 
 			instruction := _elna_tac_seqz(ElnaTacRegister.t0, ElnaTacRegister.t0);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.remainder then
+		elsif token_kind = ElnaLexerKind.remainder then
 			instruction := _elna_tac_rem(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.division then
+		elsif token_kind = ElnaLexerKind.division then
 			instruction := _elna_tac_div(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.less_than then
+		elsif token_kind = ElnaLexerKind.less_than then
 			instruction := _elna_tac_slt(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.greater_than then
+		elsif token_kind = ElnaLexerKind.greater_than then
 			instruction := _elna_tac_slt(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.less_equal then
+		elsif token_kind = ElnaLexerKind.less_equal then
 			instruction := _elna_tac_slt(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction);
 			current_instruction := instruction;
 
 			instruction := _elna_tac_xor_immediate(ElnaTacRegister.t0, ElnaTacRegister.t0, 1);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.not_equal then
+		elsif token_kind = ElnaLexerKind.not_equal then
 			instruction := _elna_tac_xor(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
 			_elna_tac_instruction_set_next(current_instruction, instruction);
 			current_instruction := instruction;
 
 			instruction := _elna_tac_snez(ElnaTacRegister.t0, ElnaTacRegister.t0);
 			_elna_tac_instruction_set_next(current_instruction, instruction)
-		elsif token_kind = LexerTokenKind.greater_equal then
+		elsif token_kind = ElnaLexerKind.greater_equal then
 			instruction := _elna_tac_slt(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
 			_elna_tac_instruction_set_next(current_instruction, instruction);
 			current_instruction := instruction;
@@ -2017,7 +2005,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_call(callee: Word);
+proc _elna_parser_call(callee: Word);
 var
 	parsed_expression: Word;
 	result: Word;
@@ -2033,27 +2021,27 @@ begin
 	argument_number := 1;
 	_call_set_name(result, callee);
 
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind = LexerTokenKind.right_paren then
-		_lexer_skip_token();
-		goto parse_call_end
+	if token_kind = ElnaLexerKind.right_paren then
+		_elna_lexer_skip_token();
+		goto elna_parser_call_end
 	end;
 
-	.parse_call_loop;
-	parsed_expression := _parse_binary_expression();
+	.elna_parser_call_loop;
+	parsed_expression := _elna_parser_binary_expression();
 	_call_set_argument(result, argument_number, parsed_expression);
 	argument_number := argument_number + 1;
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
 
-	if token_kind = LexerTokenKind.comma then
-		goto parse_call_loop
+	if token_kind = ElnaLexerKind.comma then
+		goto elna_parser_call_loop
 	end;
 
-	.parse_call_end;
+	.elna_parser_call_end;
 	(* Set the trailing argument to nil. *)
 	_call_set_argument(result, argument_number, 0);
 
@@ -2171,7 +2159,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_goto_statement();
+proc _elna_parser_goto_statement();
 var
 	token_kind: Word;
 	label_name: Word;
@@ -2179,12 +2167,12 @@ var
 	statement_size: Word;
 	result: Word;
 begin
-	_lexer_skip_token();
-	_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
 
-	label_name := _lexer_global_get_start();
-	label_length := _lexer_global_get_end() - label_name;
-	_lexer_skip_token();
+	label_name := _elna_lexer_global_get_start();
+	label_length := _elna_lexer_global_get_end() - label_name;
+	_elna_lexer_skip_token();
 
 	statement_size := _goto_statement_size();
 	result := _allocate(statement_size);
@@ -2242,7 +2230,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_label_declaration();
+proc _elna_parser_label_declaration();
 var
 	token_kind: Word;
 	label_name: Word;
@@ -2250,12 +2238,12 @@ var
 	statement_size: Word;
 	result: Word;
 begin
-	_lexer_skip_token();
-	_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
 
-	label_name := _lexer_global_get_start();
-	label_length := _lexer_global_get_end() - label_name;
-	_lexer_skip_token();
+	label_name := _elna_lexer_global_get_start();
+	label_length := _elna_lexer_global_get_end() - label_name;
+	_elna_lexer_skip_token();
 
 	statement_size := _label_declaration_size();
 	result := _allocate(statement_size);
@@ -2363,7 +2351,7 @@ begin
 	members := _enumeration_type_get_members(enumeration_type);
 	members_length := _enumeration_type_get_length(enumeration_type);
 
-	_lexer_read_token(@token_type);
+	_elna_lexer_read_token(@token_type);
 
 	value_name := _field_access_expression_get_field(field_access_expression);
 	name_length := _field_access_expression_get_length(field_access_expression);
@@ -2376,7 +2364,7 @@ begin
 		member_length := members + 4;
 		member_length := member_length^;
 
-		if _lexer_compare_keyword(value_name, name_length, member_name, member_length) = 0 then
+		if _string_compare(value_name, name_length, member_name, member_length) = 0 then
 			members_length := members_length - 1;
 			members := members + 8;
 			counter := counter + 1;
@@ -2387,7 +2375,7 @@ begin
 	return instruction
 end;
 
-proc _parse_field_access_expression(aggregate: Word);
+proc _elna_parser_field_access_expression(aggregate: Word);
 var
 	token_kind: Word;
 	name: Word;
@@ -2396,13 +2384,13 @@ var
 	memory_size: Word;
 begin
 	(* Skip dot. Read the enumeration value. *)
-	_lexer_skip_token();
-	_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
 
-	name := _lexer_global_get_start();
-	name_token := _lexer_global_get_end();
+	name := _elna_lexer_global_get_start();
+	name_token := _elna_lexer_global_get_end();
 	name_token := name_token - name;
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 	memory_size := _field_access_expression_size();
 	result := _allocate(memory_size);
 
@@ -2473,7 +2461,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_assign_statement(assignee: Word);
+proc _elna_parser_assign_statement(assignee: Word);
 var
 	statement_size: Word;
 	result: Word;
@@ -2488,10 +2476,10 @@ begin
 	_assign_statement_set_assignee(result, assignee);
 
 	(* Skip the assignment sign (:=) with surrounding whitespaces. *)
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
 
-	assignment_node := _parse_binary_expression();
+	assignment_node := _elna_parser_binary_expression();
 	_assign_statement_set_assignment(result, assignment_node);
 
 	return result
@@ -2542,7 +2530,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_return_statement();
+proc _elna_parser_return_statement();
 var
 	token_kind: Word;
 	returned: Word;
@@ -2551,10 +2539,10 @@ var
 	result: Word;
 begin
 	(* Skip "return" keyword and whitespace after it. *)
-	_lexer_skip_token();
-	_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
 
-	returned := _parse_binary_expression();
+	returned := _elna_parser_binary_expression();
 
 	statement_size := _return_statement_size();
 	result := _allocate(statement_size);
@@ -2601,7 +2589,7 @@ begin
 	end
 end;
 
-proc _parse_conditional_statements();
+proc _elna_parser_conditional_statements();
 var
 	conditional_size: Word;
 	token_kind: Word;
@@ -2612,16 +2600,16 @@ begin
 	result := _allocate(conditional_size);
 
 	(* Skip "if", "while" or "elsif". *)
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
-	current_node := _parse_binary_expression();
+	current_node := _elna_parser_binary_expression();
 	_conditional_statements_set_condition(result, current_node);
 
 	(* Skip "then" or "do". *)
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
 
-	current_node := _parse_statements();
+	current_node := _elna_parser_statements();
 	_conditional_statements_set_statements(result, current_node);
 
 	_conditional_statements_set_next(result, 0);
@@ -2732,7 +2720,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_if_statement();
+proc _elna_parser_if_statement();
 var
 	current_node: Word;
 	result: Word;
@@ -2747,58 +2735,58 @@ begin
 	_node_set_kind(result, NodeKind.if_statement);
 	_statement_set_next(result, 0);
 
-	previous_conditional := _parse_conditional_statements();
+	previous_conditional := _elna_parser_conditional_statements();
 	_if_statement_set_conditionals(result, previous_conditional);
 
-	.parse_if_statement_loop;
-	_lexer_read_token(@token_kind);
+	.elna_parser_if_statement_loop;
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind = LexerTokenKind._elsif then
-		next_conditional := _parse_conditional_statements();
+	if token_kind = ElnaLexerKind._elsif then
+		next_conditional := _elna_parser_conditional_statements();
 		_conditional_statements_set_next(previous_conditional, next_conditional);
 		previous_conditional = next_conditional;
 
-		goto parse_if_statement_loop
-	elsif token_kind = LexerTokenKind._else then
-		_lexer_skip_token();
+		goto elna_parser_if_statement_loop
+	elsif token_kind = ElnaLexerKind._else then
+		_elna_lexer_skip_token();
 
-		current_node := _parse_statements();
+		current_node := _elna_parser_statements();
 		_if_statement_set_else(result, current_node)
 	else
 		_if_statement_set_else(result, 0)
 	end;
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
 	return result
 end;
 
-proc _parse_statement();
+proc _elna_parser_statement();
 var
 	token_kind: Word;
 	result : Word;
 begin
 	result := 0;
-	_lexer_read_token(@token_kind);
-
-	if token_kind = LexerTokenKind._goto then
-		result := _parse_goto_statement()
-	elsif token_kind = LexerTokenKind._if then
-		result := _parse_if_statement()
-	elsif token_kind = LexerTokenKind._return then
-		result := _parse_return_statement()
-	elsif token_kind = LexerTokenKind.dot then
-		result := _parse_label_declaration()
-	elsif token_kind = LexerTokenKind.identifier then
-		result := _parse_designator();
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind._goto then
+		result := _elna_parser_goto_statement()
+	elsif token_kind = ElnaLexerKind._if then
+		result := _elna_parser_if_statement()
+	elsif token_kind = ElnaLexerKind._return then
+		result := _elna_parser_return_statement()
+	elsif token_kind = ElnaLexerKind.dot then
+		result := _elna_parser_label_declaration()
+	elsif token_kind = ElnaLexerKind.identifier then
+		result := _elna_parser_designator();
 
 		if _node_get_kind(result) <> NodeKind.call then
-			result := _parse_assign_statement(result)
+			result := _elna_parser_assign_statement(result)
 		end
 	end;
 	return result
 end;
 
-proc _parse_statements();
+proc _elna_parser_statements();
 var
 	token_kind: Word;
 	previous_statement: Word;
@@ -2807,27 +2795,27 @@ var
 begin
 	_skip_empty_lines();
 
-	first_statement := _parse_statement();
+	first_statement := _elna_parser_statement();
 	previous_statement := first_statement;
 	if previous_statement = 0 then
-		goto parse_statements_end
+		goto elna_parser_statements_end
 	end;
 
-	.parse_statement_loop;
-	_lexer_read_token(@token_kind);
+	.elna_parser_statement_loop;
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind = LexerTokenKind.semicolon then
-		_lexer_skip_token();
+	if token_kind = ElnaLexerKind.semicolon then
+		_elna_lexer_skip_token();
 		_skip_empty_lines();
-		next_statement := _parse_statement();
+		next_statement := _elna_parser_statement();
 		_statement_set_next(previous_statement, next_statement);
 		previous_statement := next_statement;
 
 		if previous_statement <> 0 then
-			goto parse_statement_loop
+			goto elna_parser_statement_loop
 		end
 	end;
-	.parse_statements_end;
+	.elna_parser_statements_end;
 	_skip_empty_lines();
 
 	return first_statement
@@ -2959,6 +2947,10 @@ begin
 	this^ := value
 end;
 
+proc _enumeration_type_size();
+	return 16
+end;
+
 proc _enumeration_type_get_members(this: Word);
 begin
 	this := this + 8;
@@ -3011,6 +3003,62 @@ begin
 	this^ := value
 end;
 
+proc _record_type_size();
+	return 16
+end;
+
+proc _record_type_get_members(this: Word);
+begin
+	this := this + 8;
+	return this^
+end;
+
+proc _record_type_set_members(this: Word, value: Word);
+begin
+	this := this + 8;
+	this^ := value
+end;
+
+proc _record_type_get_length(this: Word);
+begin
+	this := this + 12;
+	return this^
+end;
+
+proc _record_type_set_length(this: Word, value: Word);
+begin
+	this := this + 12;
+	this^ := value
+end;
+
+proc _record_type_expression_size();
+	return 12
+end;
+
+proc _record_type_expression_get_members(this: Word);
+begin
+	this := this + 4;
+	return this^
+end;
+
+proc _record_type_expression_set_members(this: Word, value: Word);
+begin
+	this := this + 4;
+	this^ := value
+end;
+
+proc _record_type_expression_get_length(this: Word);
+begin
+	this := this + 8;
+	return this^
+end;
+
+proc _record_type_expression_set_length(this: Word, value: Word);
+begin
+	this := this + 8;
+	this^ := value
+end;
+
 proc _named_type_expression_size();
 	return 12
 end;
@@ -3039,7 +3087,79 @@ begin
 	this^ := value
 end;
 
-proc _parse_enumeration_type_expression();
+proc _elna_parser_record_type_expression();
+var
+	entry: Word;
+	member_count: Word;
+	memory_start: Word;
+	field_name: Word;
+	field_length: Word;
+	field_type: Word;
+	token_kind: Word;
+	type_expression_size: Word;
+	result: Word;
+	previous_entry: Word;
+begin
+	_elna_lexer_skip_token();
+	member_count := 0;
+	memory_start := 0;
+
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind._end then
+		goto elna_parser_record_type_expression_end
+	end;
+	.elna_parser_record_type_expression_loop;
+	entry := _allocate(16);
+	member_count := member_count + 1;
+
+	field_name := _elna_lexer_global_get_start();
+	field_length := _elna_lexer_global_get_end() - field_name;
+
+	entry^ := field_name;
+	entry := entry + 4;
+
+	entry^ := field_length;
+	entry := entry + 4;
+
+	(* Skip the identifier. *)
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	field_type := _elna_parser_type_expression();
+
+	entry^ := field_type;
+	entry := entry + 4;
+
+	entry^ := 0;
+	if memory_start = 0 then
+		memory_start := entry - 12
+	else
+		previous_entry^ := entry - 12
+	end;
+	previous_entry := entry;
+
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind.semicolon then
+		_elna_lexer_skip_token();
+		_elna_lexer_read_token(@token_kind);
+		goto elna_parser_record_type_expression_loop
+	end;
+
+	.elna_parser_record_type_expression_end;
+	_elna_lexer_skip_token();
+
+	type_expression_size := _enumeration_type_expression_size();
+	result := _allocate(type_expression_size);
+
+	_node_set_kind(result, NodeKind.record_type_expression);
+	_record_type_expression_set_members(result, memory_start);
+	_record_type_expression_set_length(result, member_count);
+
+	return result
+end;
+
+proc _elna_parser_enumeration_type_expression();
 var
 	token_kind: Word;
 	enumeration_name: Word;
@@ -3051,20 +3171,20 @@ var
 	entry: Word;
 	previous_entry: Word;
 begin
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 	memory_start := 0;
 	member_count := 0;
 
-	_lexer_read_token(@token_kind);
-	if token_kind = LexerTokenKind.right_paren then
-		goto parse_enumeration_type_expression_end
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind.right_paren then
+		goto elna_parser_enumeration_type_expression_end
 	end;
-	.parse_enumeration_type_expression_loop;
+	.elna_parser_enumeration_type_expression_loop;
 	entry := _allocate(12);
 	member_count := member_count + 1;
 
-	enumeration_name := _lexer_global_get_start();
-	name_length := _lexer_global_get_end() - enumeration_name;
+	enumeration_name := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - enumeration_name;
 
 	entry^ := enumeration_name;
 	entry := entry + 4;
@@ -3081,17 +3201,17 @@ begin
 	previous_entry := entry;
 
 	(* Skip the identifier. *)
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
-	_lexer_read_token(@token_kind);
-	if token_kind = LexerTokenKind.comma then
-		_lexer_skip_token();
-		_lexer_read_token(@token_kind);
-		goto parse_enumeration_type_expression_loop
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind.comma then
+		_elna_lexer_skip_token();
+		_elna_lexer_read_token(@token_kind);
+		goto elna_parser_enumeration_type_expression_loop
 	end;
 
-	.parse_enumeration_type_expression_end;
-	_lexer_skip_token();
+	.elna_parser_enumeration_type_expression_end;
+	_elna_lexer_skip_token();
 
 	type_expression_size := _enumeration_type_expression_size();
 	result := _allocate(type_expression_size);
@@ -3124,8 +3244,8 @@ var
 	member_array_start: Word;
 	member_array_current: Word;
 begin
-	(* The resulting structure is 16 bytes long. *)
-	result := _allocate(16);
+	member_array_size := _enumeration_type_size();
+	result := _allocate(member_array_size);
 
 	memory_start := _enumeration_type_expression_get_members(parser_node);
 	member_count := _enumeration_type_expression_get_length(parser_node);
@@ -3159,7 +3279,54 @@ begin
 	return _type_info_create(result)
 end;
 
-proc _parse_named_type_expression();
+proc _elna_name_type_record(parser_node: Word);
+var
+	result: Word;
+	memory_start: Word;
+	member_count: Word;
+	member_array_size: Word;
+	member_array_start: Word;
+	member_array_current: Word;
+begin
+	member_array_size := _record_type_size();
+	result := _allocate(member_array_size);
+
+	memory_start := _record_type_expression_get_members(parser_node);
+	member_count := _record_type_expression_get_length(parser_node);
+
+	member_array_size := member_count * 12;
+	member_array_start := _allocate(member_array_size);
+	member_array_current := member_array_start;
+
+	.elna_name_type_record_loop;
+	if member_count > 0 then
+		member_array_current^ := memory_start^;
+		member_array_current := member_array_current + 4;
+		memory_start := memory_start + 4;
+
+		member_array_current^ := memory_start^;
+		member_array_current := member_array_current + 4;
+		memory_start := memory_start + 4;
+
+		member_array_current^ := _elna_name_type_expression(memory_start^);
+		member_array_current := member_array_current + 4;
+		memory_start := memory_start + 4;
+
+		memory_start := memory_start^;
+		member_count := member_count - 1;
+		goto elna_name_type_record_loop
+	end;
+	member_count := _record_type_expression_get_length(parser_node);
+
+	_type_set_kind(result, TypeKind._record);
+	_type_set_size(result, member_count * 4);
+	_record_type_set_members(result, member_array_start);
+	_record_type_set_length(result, member_count);
+
+	return _type_info_create(result)
+end;
+
+proc _elna_parser_named_type_expression();
 var
 	type_expression_size: Word;
 	result: Word;
@@ -3170,27 +3337,29 @@ begin
 	result := _allocate(type_expression_size);
 
 	_node_set_kind(result, NodeKind.named_type_expression);
-	type_name := _lexer_global_get_start();
-	name_length := _lexer_global_get_end() - type_name;
+	type_name := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - type_name;
 	_named_type_expression_set_name(result, type_name);
 	_named_type_expression_set_length(result, name_length);
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
 	return result
 end;
 
-proc _parse_type_expression();
+proc _elna_parser_type_expression();
 var
 	token_kind: Word;
 	result: Word;
 begin
 	result := 0;
-	_lexer_read_token(@token_kind);
-
-	if token_kind = LexerTokenKind.identifier then
-		result := _parse_named_type_expression()
-	elsif token_kind = LexerTokenKind.left_paren then
-		result := _parse_enumeration_type_expression()
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.identifier then
+		result := _elna_parser_named_type_expression()
+	elsif token_kind = ElnaLexerKind.left_paren then
+		result := _elna_parser_enumeration_type_expression()
+	elsif token_kind = ElnaLexerKind._record then
+		result := _elna_parser_record_type_expression()
 	end;
 	return result
 end;
@@ -3212,6 +3381,8 @@ begin
 		result := _type_info_get_type(result)
 	elsif token_kind = NodeKind.enumeration_type_expression then
 		result := _elna_name_type_enumeration(parser_node)
+	elsif token_kind = NodeKind.record_type_expression then
+		result := _elna_name_type_record(parser_node)
 	end;
 
 	return result
@@ -3354,16 +3525,13 @@ begin
 	temporary_counter := 0;
 
 	.elna_name_procedure_temporaries_loop;
-	if parser_node = 0 then
-		goto elna_name_procedure_temporaries_end
-	end;
-	_elna_name_procedure_temporary(parser_node, temporary_counter, symbol_table);
-
-	temporary_counter := temporary_counter + 1;
-	parser_node := _declaration_get_next(parser_node);
-	goto elna_name_procedure_temporaries_loop;
+	if parser_node <> 0 then
+		_elna_name_procedure_temporary(parser_node, temporary_counter, symbol_table);
 
-	.elna_name_procedure_temporaries_end
+		temporary_counter := temporary_counter + 1;
+		parser_node := _declaration_get_next(parser_node);
+		goto elna_name_procedure_temporaries_loop
+	end
 end;
 
 proc _declaration_get_next(this: Word);
@@ -3443,7 +3611,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_procedure_declaration();
+proc _elna_parser_procedure_declaration();
 var
 	name_pointer: Word;
 	name_length: Word;
@@ -3459,27 +3627,27 @@ begin
 	_declaration_set_next(result, 0);
 
 	(* Skip "proc ". *)
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
-	_lexer_read_token(@token_kind);
-	name_pointer := _lexer_global_get_start();
-	name_length := _lexer_global_get_end() - name_pointer;
+	_elna_lexer_read_token(@token_kind);
+	name_pointer := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - name_pointer;
 
 	_declaration_set_name(result, name_pointer);
 	_declaration_set_length(result, name_length);
 	(* Skip procedure name. *)
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
 	(* Skip open paren. *)
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
 	parameter_head := 0;
 
-	.parse_procedure_declaration_parameter;
-	_lexer_read_token(@token_kind);
+	.elna_parser_procedure_declaration_parameter;
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind <> LexerTokenKind.right_paren then
-		name_pointer := _parse_variable_declaration();
+	if token_kind <> ElnaLexerKind.right_paren then
+		name_pointer := _elna_parser_variable_declaration();
 		if parameter_head = 0 then
 			parameter_head := name_pointer
 		else
@@ -3487,73 +3655,55 @@ begin
 		end;
 		name_length := name_pointer;
 
-		_lexer_read_token(@token_kind);
+		_elna_lexer_read_token(@token_kind);
 
-		if token_kind = LexerTokenKind.comma then
-			_lexer_skip_token();
-			goto parse_procedure_declaration_parameter
+		if token_kind = ElnaLexerKind.comma then
+			_elna_lexer_skip_token();
+			goto elna_parser_procedure_declaration_parameter
 		end
 	end;
 	(* Skip close paren. *)
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 	_procedure_declaration_set_parameters(result, parameter_head);
 
 	(* Skip semicolon and newline. *)
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
 
-	parameter_head := _parse_var_part();
+	parameter_head := _elna_parser_var_part();
 	_procedure_declaration_set_temporaries(result, parameter_head);
 
 	(* Skip semicolon, "begin" and newline. *)
-	_lexer_read_token(@token_kind);
-	if token_kind = LexerTokenKind._begin then
-		_lexer_skip_token();
-		parameter_head := _parse_statements()
-	elsif token_kind = LexerTokenKind._return then
-		parameter_head := _parse_return_statement()
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind._begin then
+		_elna_lexer_skip_token();
+		parameter_head := _elna_parser_statements()
+	elsif token_kind = ElnaLexerKind._return then
+		parameter_head := _elna_parser_return_statement()
 	end;
 	_procedure_declaration_set_body(result, parameter_head);
 
 	(* Skip the "end" keyword. *)
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
 
 	return result
 end;
 
-proc _elna_tac_procedure_declaration(parser_node: Word);
+proc _elna_tac_parameters(current_parameter: Word, new_symbol_table: Word);
 var
 	name_pointer: Word;
 	name_length: Word;
 	parameter_counter: Word;
-	current_parameter: Word;
-	new_symbol_table: Word;
-	symbol_info: Word;
 	instruction: Word;
 	first_instruction: Word;
 	current_instruction: Word;
-	result: Word;
-	result_size: Word;
+	symbol_info: Word;
 begin
-	result_size := _elna_tac_declaration_size();
-	result := _allocate(result_size);
-
-	_elna_tac_declaration_set_next(result, 0);
-
-	name_pointer := _declaration_get_name(parser_node);
-	name_length := _declaration_get_length(parser_node);
-
-	_elna_tac_declaration_set_name(result, name_pointer);
-	_elna_tac_declaration_set_length(result, name_length);
-
-	symbol_info := _symbol_table_lookup(@symbol_table_global, name_pointer, name_length);
-	new_symbol_table := _procedure_info_get_symbol_table(symbol_info);
-
-	current_parameter := _procedure_declaration_get_parameters(parser_node);
 	first_instruction := 0;
 	parameter_counter := 0;
-	.elna_tac_procedure_declaration_parameters;
+
+	.elna_tac_parameters_loop;
 	if current_parameter <> 0 then
 		name_pointer := _declaration_get_name(current_parameter);
 		name_length := _declaration_get_length(current_parameter);
@@ -3573,22 +3723,59 @@ begin
 		parameter_counter := parameter_counter + 1;
 
 		current_parameter := _declaration_get_next(current_parameter);
-		goto elna_tac_procedure_declaration_parameters
+		goto elna_tac_parameters_loop
 	end;
-	current_parameter := _procedure_declaration_get_body(parser_node);
+	return first_instruction
+end;
+
+proc _elna_tac_procedure_declaration(parser_node: Word);
+var
+	name_pointer: Word;
+	name_length: Word;
+	current_parameter: Word;
+	body: Word;
+	new_symbol_table: Word;
+	symbol_info: Word;
+	instruction: Word;
+	first_instruction: Word;
+	result: Word;
+	result_size: Word;
+begin
+	result_size := _elna_tac_declaration_size();
+	result := _allocate(result_size);
+
+	_elna_tac_declaration_set_next(result, 0);
+
+	name_pointer := _declaration_get_name(parser_node);
+	name_length := _declaration_get_length(parser_node);
+
+	_elna_tac_declaration_set_name(result, name_pointer);
+	_elna_tac_declaration_set_length(result, name_length);
+
+	symbol_info := _symbol_table_lookup(@symbol_table_global, name_pointer, name_length);
+	new_symbol_table := _procedure_info_get_symbol_table(symbol_info);
+
+	(* Write the prologue. *)
+	first_instruction := _elna_tac_instruction_create(ElnaTacOperator.start);
+
+	current_parameter := _procedure_declaration_get_parameters(parser_node);
+	current_parameter := _elna_tac_parameters(current_parameter, new_symbol_table);
+	_elna_tac_instruction_set_next(first_instruction, current_parameter);
+
+	body := _procedure_declaration_get_body(parser_node);
+	instruction := _elna_tac_statements(body, new_symbol_table);
+	_elna_tac_instruction_set_next(first_instruction, instruction);
+
+	(* Write the epilogue. *)
+	instruction := _elna_tac_instruction_create(ElnaTacOperator.ret);
+	_elna_tac_instruction_set_next(first_instruction, instruction);
 
-	instruction := _elna_tac_statements(current_parameter, new_symbol_table);
-	if first_instruction <> 0 then
-		_elna_tac_instruction_set_next(first_instruction, instruction)
-	else
-		first_instruction := instruction
-	end;
 	_elna_tac_declaration_set_body(result, first_instruction);
 
 	return result
 end;
 
-proc _parse_procedures();
+proc _elna_parser_procedures();
 var
 	parser_node: Word;
 	result: Word;
@@ -3597,12 +3784,12 @@ var
 begin
 	result := 0;
 
-	.parse_procedures_loop;
+	.elna_parser_procedures_loop;
 	_skip_empty_lines();
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind = LexerTokenKind._proc then
-		parser_node := _parse_procedure_declaration();
+	if token_kind = ElnaLexerKind._proc then
+		parser_node := _elna_parser_procedure_declaration();
 		if result = 0 then
 			result := parser_node
 		else
@@ -3611,10 +3798,10 @@ begin
 		current_declaration := parser_node;
 
 		(* Skip semicolon. *)
-		_lexer_read_token(@token_kind);
-		_lexer_skip_token();
+		_elna_lexer_read_token(@token_kind);
+		_elna_lexer_skip_token();
 
-		goto parse_procedures_loop
+		goto elna_parser_procedures_loop
 	end;
 	return result
 end;
@@ -3655,10 +3842,10 @@ var
 begin
 	.skip_empty_lines_rerun;
 
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind = LexerTokenKind.comment then
-		_lexer_skip_token();
+	if token_kind = ElnaLexerKind.comment then
+		_elna_lexer_skip_token();
 		goto skip_empty_lines_rerun
 	end
 end;
@@ -3680,7 +3867,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_type_declaration();
+proc _elna_parser_type_declaration();
 var
 	token_kind: Word;
 	type_name: Word;
@@ -3689,15 +3876,15 @@ var
 	result: Word;
 	declaration_size: Word;
 begin
-	_lexer_read_token(@token_kind);
-	type_name := _lexer_global_get_start();
-	name_length := _lexer_global_get_end() - type_name;
+	_elna_lexer_read_token(@token_kind);
+	type_name := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - type_name;
 
-	_lexer_skip_token();
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
 
-	parser_node := _parse_type_expression();
+	parser_node := _elna_parser_type_expression();
 	declaration_size := _type_declaration_size();
 	result := _allocate(declaration_size);
 
@@ -3707,8 +3894,8 @@ begin
 	_declaration_set_length(result, name_length);
 	_type_declaration_set_type(result, parser_node);
 
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
 
 	return result
 end;
@@ -3732,7 +3919,7 @@ proc _elna_type_type_declaration(parser_node: Word);
 begin
 end;
 
-proc _parse_type_part();
+proc _elna_parser_type_part();
 var
 	token_kind: Word;
 	parser_node: Word;
@@ -3741,19 +3928,19 @@ var
 begin
 	result := 0;
 	_skip_empty_lines();
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind <> LexerTokenKind._type then
-		goto parse_type_part_end
+	if token_kind <> ElnaLexerKind._type then
+		goto elna_parser_type_part_end
 	end;
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
-	.parse_type_part_loop;
+	.elna_parser_type_part_loop;
 	_skip_empty_lines();
 
-	_lexer_read_token(@token_kind);
-	if token_kind = LexerTokenKind.identifier then
-		parser_node := _parse_type_declaration();
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind.identifier then
+		parser_node := _elna_parser_type_declaration();
 
 		if result = 0 then
 			result := parser_node
@@ -3761,10 +3948,10 @@ begin
 			_declaration_set_next(current_declaration, parser_node)
 		end;
 		current_declaration := parser_node;
-		goto parse_type_part_loop
+		goto elna_parser_type_part_loop
 	end;
 
-	.parse_type_part_end;
+	.elna_parser_type_part_end;
 	return result
 end;
 
@@ -3784,7 +3971,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_variable_declaration();
+proc _elna_parser_variable_declaration();
 var
 	token_kind: Word;
 	name: Word;
@@ -3793,16 +3980,16 @@ var
 	result: Word;
 	declaration_size: Word;
 begin
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
 
-	name := _lexer_global_get_start();
-	name_length := _lexer_global_get_end() - name;
+	name := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - name;
 
 	(* Skip the variable name and colon with the type. *)
-	_lexer_skip_token();
-	_lexer_read_token(@token_kind);
-	_lexer_skip_token();
-	variable_type := _parse_type_expression();
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	variable_type := _elna_parser_type_expression();
 
 	declaration_size := _variable_declaration_size();
 	result := _allocate(declaration_size);
@@ -3839,7 +4026,7 @@ begin
 	name := _named_type_expression_get_name(variable_type);
 	name_length := _named_type_expression_get_length(variable_type);
 
-	if _lexer_compare_keyword("Array", 5, name, name_length) then
+	if _string_compare("Array", 5, name, name_length) then
 		(* Else we assume this is a zeroed 4096 bytes big array. *)
 		_elna_tac_declaration_set_body(result, 4096)
 	else
@@ -3848,7 +4035,170 @@ begin
 	return result
 end;
 
-proc _parse_var_part();
+proc _elna_tac_type_field(name_pointer: Word, name_length: Word, field_pointer: Word, field_offset: Word);
+var
+	result_size: Word;
+	first_result: Word;
+	second_result: Word;
+	new_name: Word;
+	new_length: Word;
+	field_length: Word;
+	instruction: Word;
+	name_target: Word;
+	next_instruction: Word;
+begin
+	result_size := _elna_tac_declaration_size();
+	field_length := field_pointer + 4;
+	field_length := field_length^;
+	new_length := field_length + name_length;
+	new_length := new_length + 5;
+
+	first_result := _allocate(result_size);
+	_elna_tac_declaration_set_next(first_result, 0);
+
+	new_name := _allocate(new_length);
+
+	name_target := new_name;
+	_memcpy(name_target, name_pointer, name_length);
+	name_target := name_target + name_length;
+	_memcpy(name_target, "_get_", 5);
+	name_target := name_target + 5;
+	_memcpy(name_target, field_pointer^, field_length);
+
+	_elna_tac_declaration_set_name(first_result, new_name);
+	_elna_tac_declaration_set_length(first_result, new_length);
+
+	instruction := _elna_tac_add_immediate(ElnaTacRegister.a0, ElnaTacRegister.a0, field_offset, 0);
+	next_instruction := _elna_tac_load_word(ElnaTacRegister.a0, ElnaTacRegister.a0, 0);
+	_elna_tac_instruction_set_next(instruction, next_instruction);
+	_elna_tac_declaration_set_body(first_result, instruction);
+
+	second_result := _allocate(result_size);
+	_elna_tac_declaration_set_next(second_result, 0);
+
+	new_name := _allocate(new_length);
+
+	name_target := new_name;
+	_memcpy(name_target, name_pointer, name_length);
+	name_target := name_target + name_length;
+	_memcpy(name_target, "_set_", 5);
+	name_target := name_target + 5;
+	_memcpy(name_target, field_pointer^, field_length);
+
+	_elna_tac_declaration_set_name(second_result, new_name);
+	_elna_tac_declaration_set_length(second_result, new_length);
+
+	instruction := _elna_tac_add_immediate(ElnaTacRegister.a0, ElnaTacRegister.a0, field_offset, 0);
+	next_instruction := _elna_tac_store_word(ElnaTacRegister.a1, ElnaTacRegister.a0, 0);
+	_elna_tac_instruction_set_next(instruction, next_instruction);
+	_elna_tac_declaration_set_body(second_result, instruction);
+
+	_elna_tac_declaration_set_next(first_result, second_result);
+
+	return first_result
+end;
+
+proc _elna_tac_type_record(name_pointer: Word, name_length: Word, type_representation: Word, current_result: Word);
+var
+	result_size: Word;
+	first_result: Word;
+	result: Word;
+	type_size: Word;
+	new_name: Word;
+	new_length: Word;
+	instruction: Word;
+	field_count: Word;
+	field_offset: Word;
+	field_pointer: Word;
+begin
+	result_size := _elna_tac_declaration_size();
+	first_result := _allocate(result_size);
+	result := 0;
+
+	(* Debug. Error stream output.
+	_syscall(2, name_pointer, name_length, 0, 0, 0, 64); *)
+
+	type_size := _type_get_size(type_representation);
+	new_length := name_length + 5;
+	new_name := _allocate(new_length);
+
+	_memcpy(new_name, name_pointer, name_length);
+	_memcpy(new_name + name_length, "_size", 5);
+
+	_elna_tac_declaration_set_name(first_result, new_name);
+	_elna_tac_declaration_set_length(first_result, new_length);
+
+	instruction := _elna_tac_load_immediate(ElnaTacRegister.a0, type_size, 0);
+	_elna_tac_declaration_set_body(first_result, instruction);
+
+	field_count := _record_type_get_length(type_representation);
+	field_pointer := _record_type_get_members(type_representation);
+	field_offset := 0;
+	current_result^ := first_result;
+
+	.elna_tac_type_record_fields;
+	if field_count > 0 then
+		result := _elna_tac_type_field(name_pointer, name_length, field_pointer, field_offset);
+
+		_elna_tac_declaration_set_next(current_result^, result);
+		current_result^ := _elna_tac_declaration_get_next(result);
+
+		field_offset := field_offset + 4;
+		field_count := field_count - 1;
+		field_pointer := field_pointer + 12;
+		goto elna_tac_type_record_fields
+	end;
+
+	return first_result
+end;
+
+proc _elna_tac_type_part(parser_node: Word);
+var
+	name_pointer: Word;
+	name_length: Word;
+	result: Word;
+	first_result: Word;
+	symbol: Word;
+	info_type: Word;
+	type_kind: Word;
+	current_result: Word;
+	out_result: Word;
+begin
+	first_result := 0;
+
+	.elna_tac_type_part_loop;
+	if parser_node = 0 then
+		goto elna_tac_type_part_end
+	end;
+
+	name_pointer := _declaration_get_name(parser_node);
+	name_length := _declaration_get_length(parser_node);
+	symbol := _symbol_table_lookup(@symbol_table_global, name_pointer, name_length);
+
+	info_type := _type_info_get_type(symbol);
+	type_kind := _type_get_kind(info_type);
+
+	if type_kind = TypeKind._record then
+		result := _elna_tac_type_record(name_pointer, name_length, info_type, @out_result)
+	else
+		result := 0;
+		out_result := 0
+	end;
+	if first_result = 0 then
+		first_result := result;
+		current_result := out_result
+	elsif result <> 0 then
+		_elna_tac_declaration_set_next(current_result, result);
+		current_result := out_result
+	end;
+	parser_node := _declaration_get_next(parser_node);
+	goto elna_tac_type_part_loop;
+
+	.elna_tac_type_part_end;
+	return first_result
+end;
+
+proc _elna_parser_var_part();
 var
 	result: Word;
 	token_kind: Word;
@@ -3856,24 +4206,24 @@ var
 	current_declaration: Word;
 begin
 	result := 0;
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind <> LexerTokenKind._var then
-		goto parse_var_part_end
+	if token_kind <> ElnaLexerKind._var then
+		goto elna_parser_var_part_end
 	end;
 	(* Skip "var". *)
-	_lexer_skip_token();
+	_elna_lexer_skip_token();
 
-	.parse_var_part_loop;
+	.elna_parser_var_part_loop;
 	_skip_empty_lines();
-	_lexer_read_token(@token_kind);
+	_elna_lexer_read_token(@token_kind);
 
-	if token_kind = LexerTokenKind.identifier then
-		variable_node := _parse_variable_declaration();
+	if token_kind = ElnaLexerKind.identifier then
+		variable_node := _elna_parser_variable_declaration();
 
 		(* Skip semicolon. *)
-		_lexer_read_token(@token_kind);
-		_lexer_skip_token();
+		_elna_lexer_read_token(@token_kind);
+		_elna_lexer_skip_token();
 
 		if result = 0 then
 			result := variable_node
@@ -3881,10 +4231,10 @@ begin
 			_declaration_set_next(current_declaration, variable_node)
 		end;
 		current_declaration := variable_node;
-		goto parse_var_part_loop
+		goto elna_parser_var_part_loop
 	end;
 
-	.parse_var_part_end;
+	.elna_parser_var_part_end;
 	return result
 end;
 
@@ -3957,7 +4307,7 @@ begin
 	this^ := value
 end;
 
-proc _parse_module_declaration();
+proc _elna_parser_module_declaration();
 var
 	parser_node: Word;
 	declaration_size: Word;
@@ -3968,13 +4318,13 @@ begin
 
 	_node_set_kind(result, NodeKind.module_declaration);
 
-	parser_node := _parse_type_part();
+	parser_node := _elna_parser_type_part();
 	_module_declaration_set_types(result, parser_node);
 
-	parser_node := _parse_var_part();
+	parser_node := _elna_parser_var_part();
 	_module_declaration_set_globals(result, parser_node);
 
-	parser_node := _parse_procedures();
+	parser_node := _elna_parser_procedures();
 	_module_declaration_set_procedures(result, parser_node);
 
 	return result
@@ -3987,13 +4337,30 @@ proc _elna_tac_module_declaration(parser_node: Word);
 var
 	data_part: Word;
 	code_part: Word;
+	type_part: Word;
+	current_declaration: Word;
+	next_declaration: Word;
 begin
+	type_part := _module_declaration_get_types(parser_node);
+	type_part := _elna_tac_type_part(type_part);
+
 	data_part := _module_declaration_get_globals(parser_node);
 	data_part := _elna_tac_var_part(data_part);
 
 	code_part := _module_declaration_get_procedures(parser_node);
 	code_part := _elna_tac_procedures(code_part);
 
+	current_declaration := code_part;
+
+	.elna_tac_module_declaration_types;
+	next_declaration := _elna_tac_declaration_get_next(current_declaration);
+	if next_declaration <> 0 then
+		current_declaration := next_declaration;
+
+		goto elna_tac_module_declaration_types
+	end;
+	_elna_tac_declaration_set_next(current_declaration, type_part);
+
 	return _elna_tac_module_create(data_part, code_part)
 end;
 
@@ -4084,7 +4451,7 @@ var
 	parser_node: Word;
 	tac: Word;
 begin
-	parser_node := _parse_module_declaration();
+	parser_node := _elna_parser_module_declaration();
 	_elna_name_module_declaration(parser_node);
 	_elna_type_module_declaration(parser_node);
 	tac := _elna_tac_module_declaration(parser_node);
@@ -4270,144 +4637,144 @@ end;
 (**
  * Initializes the array with character classes.
  *)
-proc _lexer_classifications();
+proc _elna_lexer_classifications();
 var
 	code: Word;
 begin
-	_assign_at(@classification, 1, LexerClass.eof);
-	_assign_at(@classification, 2, LexerClass.invalid);
-	_assign_at(@classification, 3, LexerClass.invalid);
-	_assign_at(@classification, 4, LexerClass.invalid);
-	_assign_at(@classification, 5, LexerClass.invalid);
-	_assign_at(@classification, 6, LexerClass.invalid);
-	_assign_at(@classification, 7, LexerClass.invalid);
-	_assign_at(@classification, 8, LexerClass.invalid);
-	_assign_at(@classification, 9, LexerClass.invalid);
-	_assign_at(@classification, 10, LexerClass.space);
-	_assign_at(@classification, 11, LexerClass.space);
-	_assign_at(@classification, 12, LexerClass.invalid);
-	_assign_at(@classification, 13, LexerClass.invalid);
-	_assign_at(@classification, 14, LexerClass.space);
-	_assign_at(@classification, 15, LexerClass.invalid);
-	_assign_at(@classification, 16, LexerClass.invalid);
-	_assign_at(@classification, 17, LexerClass.invalid);
-	_assign_at(@classification, 18, LexerClass.invalid);
-	_assign_at(@classification, 19, LexerClass.invalid);
-	_assign_at(@classification, 20, LexerClass.invalid);
-	_assign_at(@classification, 21, LexerClass.invalid);
-	_assign_at(@classification, 22, LexerClass.invalid);
-	_assign_at(@classification, 23, LexerClass.invalid);
-	_assign_at(@classification, 24, LexerClass.invalid);
-	_assign_at(@classification, 25, LexerClass.invalid);
-	_assign_at(@classification, 26, LexerClass.invalid);
-	_assign_at(@classification, 27, LexerClass.invalid);
-	_assign_at(@classification, 28, LexerClass.invalid);
-	_assign_at(@classification, 29, LexerClass.invalid);
-	_assign_at(@classification, 30, LexerClass.invalid);
-	_assign_at(@classification, 31, LexerClass.invalid);
-	_assign_at(@classification, 32, LexerClass.invalid);
-	_assign_at(@classification, 33, LexerClass.space);
-	_assign_at(@classification, 34, LexerClass.single);
-	_assign_at(@classification, 35, LexerClass.double_quote);
-	_assign_at(@classification, 36, LexerClass.other);
-	_assign_at(@classification, 37, LexerClass.other);
-	_assign_at(@classification, 38, LexerClass.single);
-	_assign_at(@classification, 39, LexerClass.single);
-	_assign_at(@classification, 40, LexerClass.single_quote);
-	_assign_at(@classification, 41, LexerClass.left_paren);
-	_assign_at(@classification, 42, LexerClass.right_paren);
-	_assign_at(@classification, 43, LexerClass.asterisk);
-	_assign_at(@classification, 44, LexerClass.single);
-	_assign_at(@classification, 45, LexerClass.single);
-	_assign_at(@classification, 46, LexerClass.minus);
-	_assign_at(@classification, 47, LexerClass.dot);
-	_assign_at(@classification, 48, LexerClass.single);
-	_assign_at(@classification, 49, LexerClass.zero);
-	_assign_at(@classification, 50, LexerClass.digit);
-	_assign_at(@classification, 51, LexerClass.digit);
-	_assign_at(@classification, 52, LexerClass.digit);
-	_assign_at(@classification, 53, LexerClass.digit);
-	_assign_at(@classification, 54, LexerClass.digit);
-	_assign_at(@classification, 55, LexerClass.digit);
-	_assign_at(@classification, 56, LexerClass.digit);
-	_assign_at(@classification, 57, LexerClass.digit);
-	_assign_at(@classification, 58, LexerClass.digit);
-	_assign_at(@classification, 59, LexerClass.colon);
-	_assign_at(@classification, 60, LexerClass.single);
-	_assign_at(@classification, 61, LexerClass.less);
-	_assign_at(@classification, 62, LexerClass.equals);
-	_assign_at(@classification, 63, LexerClass.greater);
-	_assign_at(@classification, 64, LexerClass.other);
-	_assign_at(@classification, 65, LexerClass.single);
-	_assign_at(@classification, 66, LexerClass.alpha);
-	_assign_at(@classification, 67, LexerClass.alpha);
-	_assign_at(@classification, 68, LexerClass.alpha);
-	_assign_at(@classification, 69, LexerClass.alpha);
-	_assign_at(@classification, 70, LexerClass.alpha);
-	_assign_at(@classification, 71, LexerClass.alpha);
-	_assign_at(@classification, 72, LexerClass.alpha);
-	_assign_at(@classification, 73, LexerClass.alpha);
-	_assign_at(@classification, 74, LexerClass.alpha);
-	_assign_at(@classification, 75, LexerClass.alpha);
-	_assign_at(@classification, 76, LexerClass.alpha);
-	_assign_at(@classification, 77, LexerClass.alpha);
-	_assign_at(@classification, 78, LexerClass.alpha);
-	_assign_at(@classification, 79, LexerClass.alpha);
-	_assign_at(@classification, 80, LexerClass.alpha);
-	_assign_at(@classification, 81, LexerClass.alpha);
-	_assign_at(@classification, 82, LexerClass.alpha);
-	_assign_at(@classification, 83, LexerClass.alpha);
-	_assign_at(@classification, 84, LexerClass.alpha);
-	_assign_at(@classification, 85, LexerClass.alpha);
-	_assign_at(@classification, 86, LexerClass.alpha);
-	_assign_at(@classification, 87, LexerClass.alpha);
-	_assign_at(@classification, 88, LexerClass.alpha);
-	_assign_at(@classification, 89, LexerClass.alpha);
-	_assign_at(@classification, 90, LexerClass.alpha);
-	_assign_at(@classification, 91, LexerClass.alpha);
-	_assign_at(@classification, 92, LexerClass.single);
-	_assign_at(@classification, 93, LexerClass.backslash);
-	_assign_at(@classification, 94, LexerClass.single);
-	_assign_at(@classification, 95, LexerClass.single);
-	_assign_at(@classification, 96, LexerClass.alpha);
-	_assign_at(@classification, 97, LexerClass.other);
-	_assign_at(@classification, 98, LexerClass.hex);
-	_assign_at(@classification, 99, LexerClass.hex);
-	_assign_at(@classification, 100, LexerClass.hex);
-	_assign_at(@classification, 101, LexerClass.hex);
-	_assign_at(@classification, 102, LexerClass.hex);
-	_assign_at(@classification, 103, LexerClass.hex);
-	_assign_at(@classification, 104, LexerClass.alpha);
-	_assign_at(@classification, 105, LexerClass.alpha);
-	_assign_at(@classification, 106, LexerClass.alpha);
-	_assign_at(@classification, 107, LexerClass.alpha);
-	_assign_at(@classification, 108, LexerClass.alpha);
-	_assign_at(@classification, 109, LexerClass.alpha);
-	_assign_at(@classification, 110, LexerClass.alpha);
-	_assign_at(@classification, 111, LexerClass.alpha);
-	_assign_at(@classification, 112, LexerClass.alpha);
-	_assign_at(@classification, 113, LexerClass.alpha);
-	_assign_at(@classification, 114, LexerClass.alpha);
-	_assign_at(@classification, 115, LexerClass.alpha);
-	_assign_at(@classification, 116, LexerClass.alpha);
-	_assign_at(@classification, 117, LexerClass.alpha);
-	_assign_at(@classification, 118, LexerClass.alpha);
-	_assign_at(@classification, 119, LexerClass.alpha);
-	_assign_at(@classification, 120, LexerClass.alpha);
-	_assign_at(@classification, 121, LexerClass.x);
-	_assign_at(@classification, 122, LexerClass.alpha);
-	_assign_at(@classification, 123, LexerClass.alpha);
-	_assign_at(@classification, 124, LexerClass.other);
-	_assign_at(@classification, 125, LexerClass.single);
-	_assign_at(@classification, 126, LexerClass.other);
-	_assign_at(@classification, 127, LexerClass.single);
-	_assign_at(@classification, 128, LexerClass.invalid);
+	_assign_at(@classification, 1, ElnaLexerClass.eof);
+	_assign_at(@classification, 2, ElnaLexerClass.invalid);
+	_assign_at(@classification, 3, ElnaLexerClass.invalid);
+	_assign_at(@classification, 4, ElnaLexerClass.invalid);
+	_assign_at(@classification, 5, ElnaLexerClass.invalid);
+	_assign_at(@classification, 6, ElnaLexerClass.invalid);
+	_assign_at(@classification, 7, ElnaLexerClass.invalid);
+	_assign_at(@classification, 8, ElnaLexerClass.invalid);
+	_assign_at(@classification, 9, ElnaLexerClass.invalid);
+	_assign_at(@classification, 10, ElnaLexerClass.space);
+	_assign_at(@classification, 11, ElnaLexerClass.space);
+	_assign_at(@classification, 12, ElnaLexerClass.invalid);
+	_assign_at(@classification, 13, ElnaLexerClass.invalid);
+	_assign_at(@classification, 14, ElnaLexerClass.space);
+	_assign_at(@classification, 15, ElnaLexerClass.invalid);
+	_assign_at(@classification, 16, ElnaLexerClass.invalid);
+	_assign_at(@classification, 17, ElnaLexerClass.invalid);
+	_assign_at(@classification, 18, ElnaLexerClass.invalid);
+	_assign_at(@classification, 19, ElnaLexerClass.invalid);
+	_assign_at(@classification, 20, ElnaLexerClass.invalid);
+	_assign_at(@classification, 21, ElnaLexerClass.invalid);
+	_assign_at(@classification, 22, ElnaLexerClass.invalid);
+	_assign_at(@classification, 23, ElnaLexerClass.invalid);
+	_assign_at(@classification, 24, ElnaLexerClass.invalid);
+	_assign_at(@classification, 25, ElnaLexerClass.invalid);
+	_assign_at(@classification, 26, ElnaLexerClass.invalid);
+	_assign_at(@classification, 27, ElnaLexerClass.invalid);
+	_assign_at(@classification, 28, ElnaLexerClass.invalid);
+	_assign_at(@classification, 29, ElnaLexerClass.invalid);
+	_assign_at(@classification, 30, ElnaLexerClass.invalid);
+	_assign_at(@classification, 31, ElnaLexerClass.invalid);
+	_assign_at(@classification, 32, ElnaLexerClass.invalid);
+	_assign_at(@classification, 33, ElnaLexerClass.space);
+	_assign_at(@classification, 34, ElnaLexerClass.single);
+	_assign_at(@classification, 35, ElnaLexerClass.double_quote);
+	_assign_at(@classification, 36, ElnaLexerClass.other);
+	_assign_at(@classification, 37, ElnaLexerClass.other);
+	_assign_at(@classification, 38, ElnaLexerClass.single);
+	_assign_at(@classification, 39, ElnaLexerClass.single);
+	_assign_at(@classification, 40, ElnaLexerClass.single_quote);
+	_assign_at(@classification, 41, ElnaLexerClass.left_paren);
+	_assign_at(@classification, 42, ElnaLexerClass.right_paren);
+	_assign_at(@classification, 43, ElnaLexerClass.asterisk);
+	_assign_at(@classification, 44, ElnaLexerClass.single);
+	_assign_at(@classification, 45, ElnaLexerClass.single);
+	_assign_at(@classification, 46, ElnaLexerClass.minus);
+	_assign_at(@classification, 47, ElnaLexerClass.dot);
+	_assign_at(@classification, 48, ElnaLexerClass.single);
+	_assign_at(@classification, 49, ElnaLexerClass.zero);
+	_assign_at(@classification, 50, ElnaLexerClass.digit);
+	_assign_at(@classification, 51, ElnaLexerClass.digit);
+	_assign_at(@classification, 52, ElnaLexerClass.digit);
+	_assign_at(@classification, 53, ElnaLexerClass.digit);
+	_assign_at(@classification, 54, ElnaLexerClass.digit);
+	_assign_at(@classification, 55, ElnaLexerClass.digit);
+	_assign_at(@classification, 56, ElnaLexerClass.digit);
+	_assign_at(@classification, 57, ElnaLexerClass.digit);
+	_assign_at(@classification, 58, ElnaLexerClass.digit);
+	_assign_at(@classification, 59, ElnaLexerClass.colon);
+	_assign_at(@classification, 60, ElnaLexerClass.single);
+	_assign_at(@classification, 61, ElnaLexerClass.less);
+	_assign_at(@classification, 62, ElnaLexerClass.equals);
+	_assign_at(@classification, 63, ElnaLexerClass.greater);
+	_assign_at(@classification, 64, ElnaLexerClass.other);
+	_assign_at(@classification, 65, ElnaLexerClass.single);
+	_assign_at(@classification, 66, ElnaLexerClass.alpha);
+	_assign_at(@classification, 67, ElnaLexerClass.alpha);
+	_assign_at(@classification, 68, ElnaLexerClass.alpha);
+	_assign_at(@classification, 69, ElnaLexerClass.alpha);
+	_assign_at(@classification, 70, ElnaLexerClass.alpha);
+	_assign_at(@classification, 71, ElnaLexerClass.alpha);
+	_assign_at(@classification, 72, ElnaLexerClass.alpha);
+	_assign_at(@classification, 73, ElnaLexerClass.alpha);
+	_assign_at(@classification, 74, ElnaLexerClass.alpha);
+	_assign_at(@classification, 75, ElnaLexerClass.alpha);
+	_assign_at(@classification, 76, ElnaLexerClass.alpha);
+	_assign_at(@classification, 77, ElnaLexerClass.alpha);
+	_assign_at(@classification, 78, ElnaLexerClass.alpha);
+	_assign_at(@classification, 79, ElnaLexerClass.alpha);
+	_assign_at(@classification, 80, ElnaLexerClass.alpha);
+	_assign_at(@classification, 81, ElnaLexerClass.alpha);
+	_assign_at(@classification, 82, ElnaLexerClass.alpha);
+	_assign_at(@classification, 83, ElnaLexerClass.alpha);
+	_assign_at(@classification, 84, ElnaLexerClass.alpha);
+	_assign_at(@classification, 85, ElnaLexerClass.alpha);
+	_assign_at(@classification, 86, ElnaLexerClass.alpha);
+	_assign_at(@classification, 87, ElnaLexerClass.alpha);
+	_assign_at(@classification, 88, ElnaLexerClass.alpha);
+	_assign_at(@classification, 89, ElnaLexerClass.alpha);
+	_assign_at(@classification, 90, ElnaLexerClass.alpha);
+	_assign_at(@classification, 91, ElnaLexerClass.alpha);
+	_assign_at(@classification, 92, ElnaLexerClass.single);
+	_assign_at(@classification, 93, ElnaLexerClass.backslash);
+	_assign_at(@classification, 94, ElnaLexerClass.single);
+	_assign_at(@classification, 95, ElnaLexerClass.single);
+	_assign_at(@classification, 96, ElnaLexerClass.alpha);
+	_assign_at(@classification, 97, ElnaLexerClass.other);
+	_assign_at(@classification, 98, ElnaLexerClass.hex);
+	_assign_at(@classification, 99, ElnaLexerClass.hex);
+	_assign_at(@classification, 100, ElnaLexerClass.hex);
+	_assign_at(@classification, 101, ElnaLexerClass.hex);
+	_assign_at(@classification, 102, ElnaLexerClass.hex);
+	_assign_at(@classification, 103, ElnaLexerClass.hex);
+	_assign_at(@classification, 104, ElnaLexerClass.alpha);
+	_assign_at(@classification, 105, ElnaLexerClass.alpha);
+	_assign_at(@classification, 106, ElnaLexerClass.alpha);
+	_assign_at(@classification, 107, ElnaLexerClass.alpha);
+	_assign_at(@classification, 108, ElnaLexerClass.alpha);
+	_assign_at(@classification, 109, ElnaLexerClass.alpha);
+	_assign_at(@classification, 110, ElnaLexerClass.alpha);
+	_assign_at(@classification, 111, ElnaLexerClass.alpha);
+	_assign_at(@classification, 112, ElnaLexerClass.alpha);
+	_assign_at(@classification, 113, ElnaLexerClass.alpha);
+	_assign_at(@classification, 114, ElnaLexerClass.alpha);
+	_assign_at(@classification, 115, ElnaLexerClass.alpha);
+	_assign_at(@classification, 116, ElnaLexerClass.alpha);
+	_assign_at(@classification, 117, ElnaLexerClass.alpha);
+	_assign_at(@classification, 118, ElnaLexerClass.alpha);
+	_assign_at(@classification, 119, ElnaLexerClass.alpha);
+	_assign_at(@classification, 120, ElnaLexerClass.alpha);
+	_assign_at(@classification, 121, ElnaLexerClass.x);
+	_assign_at(@classification, 122, ElnaLexerClass.alpha);
+	_assign_at(@classification, 123, ElnaLexerClass.alpha);
+	_assign_at(@classification, 124, ElnaLexerClass.other);
+	_assign_at(@classification, 125, ElnaLexerClass.single);
+	_assign_at(@classification, 126, ElnaLexerClass.other);
+	_assign_at(@classification, 127, ElnaLexerClass.single);
+	_assign_at(@classification, 128, ElnaLexerClass.invalid);
 
 	code := 129;
 
 	(* Set the remaining 129 - 256 bytes to transitionClassOther. *)
 	.create_classification_loop;
-	_assign_at(@classification, code, LexerClass.other);
+	_assign_at(@classification, code, ElnaLexerClass.other);
 	code := code + 1;
 
 	if code < 257 then
@@ -4415,7 +4782,7 @@ begin
 	end
 end;
 
-proc _lexer_get_transition(current_state: Word, character_class: Word);
+proc _elna_lexer_get_transition(current_state: Word, character_class: Word);
 var
 	transition_table: Word;
 	row_position: Word;
@@ -4430,7 +4797,7 @@ begin
 	column_position := character_class - 1;
 	column_position := column_position * 8;
 
-	target := _lexer_get_transition_table();
+	target := _elna_lexer_get_transition_table();
 	target := target + row_position;
 
 	return target + column_position
@@ -4443,14 +4810,14 @@ end;
  * action - Action to assign.
  * next_state - Next state to assign.
  *)
-proc _lexer_set_transition(current_state: Word, character_class: Word, action: Word, next_state: Word);
+proc _elna_lexer_set_transition(current_state: Word, character_class: Word, action: Word, next_state: Word);
 var
 	transition: Word;
 begin
-	transition := _lexer_get_transition(current_state, character_class);
+	transition := _elna_lexer_get_transition(current_state, character_class);
 
-	_lexer_transition_set_action(transition, action);
-	_lexer_transition_set_state(transition, next_state)
+	_elna_lexer_transition_set_action(transition, action);
+	_elna_lexer_transition_set_state(transition, next_state)
 end;
 
 (* Sets same action and state transition for all character classes in one transition row. *)
@@ -4461,30 +4828,30 @@ end;
  * default_action - Default action (Callback).
  * next_state - Next state (Transition state enumeration).
  *)
-proc _lexer_default_transition(current_state: Word, default_action: Word, next_state: Word);
-begin
-	_lexer_set_transition(current_state, LexerClass.invalid, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.digit, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.alpha, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.space, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.colon, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.equals, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.left_paren, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.right_paren, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.asterisk, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.backslash, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.single, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.hex, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.zero, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.x, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.eof, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.dot, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.minus, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.single_quote, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.double_quote, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.greater, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.less, default_action, next_state);
-	_lexer_set_transition(current_state, LexerClass.other, default_action, next_state)
+proc _elna_lexer_default_transition(current_state: Word, default_action: Word, next_state: Word);
+begin
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.invalid, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.digit, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.alpha, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.space, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.colon, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.equals, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.left_paren, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.right_paren, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.asterisk, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.backslash, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.single, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.hex, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.zero, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.x, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.eof, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.dot, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.minus, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.single_quote, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.double_quote, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.greater, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.less, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.other, default_action, next_state)
 end;
 
 (**
@@ -4495,116 +4862,116 @@ end;
  * the amount of classes. So given the current state and a classified character
  * the table can be used to look up the next state.
  *)
-proc _lexer_transitions();
+proc _elna_lexer_transitions();
 begin
 	(* Start state. *)
-	_lexer_set_transition(LexerState.start, LexerClass.invalid, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.start, LexerClass.digit, LexerAction.accumulate, LexerState.decimal);
-	_lexer_set_transition(LexerState.start, LexerClass.alpha, LexerAction.accumulate, LexerState.identifier);
-	_lexer_set_transition(LexerState.start, LexerClass.space, LexerAction.skip, LexerState.start);
-	_lexer_set_transition(LexerState.start, LexerClass.colon, LexerAction.accumulate, LexerState.colon);
-	_lexer_set_transition(LexerState.start, LexerClass.equals, LexerAction.single, LexerState.finish);
-	_lexer_set_transition(LexerState.start, LexerClass.left_paren, LexerAction.accumulate, LexerState.left_paren);
-	_lexer_set_transition(LexerState.start, LexerClass.right_paren, LexerAction.single, LexerState.finish);
-	_lexer_set_transition(LexerState.start, LexerClass.asterisk, LexerAction.single, LexerState.finish);
-	_lexer_set_transition(LexerState.start, LexerClass.backslash, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.start, LexerClass.single, LexerAction.single, LexerState.finish);
-	_lexer_set_transition(LexerState.start, LexerClass.hex, LexerAction.accumulate, LexerState.identifier);
-	_lexer_set_transition(LexerState.start, LexerClass.zero, LexerAction.accumulate, LexerState.leading_zero);
-	_lexer_set_transition(LexerState.start, LexerClass.x, LexerAction.accumulate, LexerState.identifier);
-	_lexer_set_transition(LexerState.start, LexerClass.eof, LexerAction.eof, LexerState.finish);
-	_lexer_set_transition(LexerState.start, LexerClass.dot, LexerAction.single, LexerState.finish);
-	_lexer_set_transition(LexerState.start, LexerClass.minus, LexerAction.accumulate, LexerState.minus);
-	_lexer_set_transition(LexerState.start, LexerClass.single_quote, LexerAction.accumulate, LexerState.character);
-	_lexer_set_transition(LexerState.start, LexerClass.double_quote, LexerAction.accumulate, LexerState.string);
-	_lexer_set_transition(LexerState.start, LexerClass.greater, LexerAction.accumulate, LexerState.greater);
-	_lexer_set_transition(LexerState.start, LexerClass.less, LexerAction.accumulate, LexerState.less);
-	_lexer_set_transition(LexerState.start, LexerClass.other, LexerAction.none, LexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.digit, ElnaLexerAction.accumulate, ElnaLexerState.decimal);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.alpha, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.space, ElnaLexerAction.skip, ElnaLexerState.start);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.colon, ElnaLexerAction.accumulate, ElnaLexerState.colon);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.equals, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.left_paren, ElnaLexerAction.accumulate, ElnaLexerState.left_paren);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.right_paren, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.asterisk, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.backslash, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.single, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.hex, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.zero, ElnaLexerAction.accumulate, ElnaLexerState.leading_zero);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.x, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.eof, ElnaLexerAction.eof, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.dot, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.minus, ElnaLexerAction.accumulate, ElnaLexerState.minus);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.single_quote, ElnaLexerAction.accumulate, ElnaLexerState.character);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.double_quote, ElnaLexerAction.accumulate, ElnaLexerState.string);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.greater, ElnaLexerAction.accumulate, ElnaLexerState.greater);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.less, ElnaLexerAction.accumulate, ElnaLexerState.less);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.other, ElnaLexerAction.none, ElnaLexerState.finish);
 
 	(* Colon state. *)
-	_lexer_default_transition(LexerState.colon, LexerAction.finalize, LexerState.finish);
-	_lexer_set_transition(LexerState.colon, LexerClass.equals, LexerAction.composite, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.colon, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.colon, ElnaLexerClass.equals, ElnaLexerAction.composite, ElnaLexerState.finish);
 
 	(* Identifier state. *)
-	_lexer_default_transition(LexerState.identifier, LexerAction.key_id, LexerState.finish);
-	_lexer_set_transition(LexerState.identifier, LexerClass.digit, LexerAction.accumulate, LexerState.identifier);
-	_lexer_set_transition(LexerState.identifier, LexerClass.alpha, LexerAction.accumulate, LexerState.identifier);
-	_lexer_set_transition(LexerState.identifier, LexerClass.hex, LexerAction.accumulate, LexerState.identifier);
-	_lexer_set_transition(LexerState.identifier, LexerClass.zero, LexerAction.accumulate, LexerState.identifier);
-	_lexer_set_transition(LexerState.identifier, LexerClass.x, LexerAction.accumulate, LexerState.identifier);
+	_elna_lexer_default_transition(ElnaLexerState.identifier, ElnaLexerAction.key_id, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.digit, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.alpha, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.hex, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.zero, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.x, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
 
 	(* Decimal state. *)
-	_lexer_default_transition(LexerState.decimal, LexerAction.integer, LexerState.finish);
-	_lexer_set_transition(LexerState.decimal, LexerClass.digit, LexerAction.accumulate, LexerState.decimal);
-	_lexer_set_transition(LexerState.decimal, LexerClass.alpha, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.decimal, LexerClass.hex, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.decimal, LexerClass.zero, LexerAction.accumulate, LexerState.decimal);
-	_lexer_set_transition(LexerState.decimal, LexerClass.x, LexerAction.none, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.decimal, ElnaLexerAction.integer, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.digit, ElnaLexerAction.accumulate, ElnaLexerState.decimal);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.alpha, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.hex, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.zero, ElnaLexerAction.accumulate, ElnaLexerState.decimal);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.x, ElnaLexerAction.none, ElnaLexerState.finish);
 
 	(* Leading zero. *)
-	_lexer_default_transition(LexerState.leading_zero, LexerAction.integer, LexerState.finish);
-	_lexer_set_transition(LexerState.leading_zero, LexerClass.digit, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.leading_zero, LexerClass.alpha, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.leading_zero, LexerClass.hex, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.leading_zero, LexerClass.zero, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.leading_zero, LexerClass.x, LexerAction.none, LexerState.dot);
+	_elna_lexer_default_transition(ElnaLexerState.leading_zero, ElnaLexerAction.integer, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.digit, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.alpha, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.hex, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.zero, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.x, ElnaLexerAction.none, ElnaLexerState.dot);
 
 	(* Greater state. *)
-	_lexer_default_transition(LexerState.greater, LexerAction.finalize, LexerState.finish);
-	_lexer_set_transition(LexerState.greater, LexerClass.equals, LexerAction.composite, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.greater, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.greater, ElnaLexerClass.equals, ElnaLexerAction.composite, ElnaLexerState.finish);
 
 	(* Minus state. *)
-	_lexer_default_transition(LexerState.minus, LexerAction.finalize, LexerState.finish);
-	_lexer_set_transition(LexerState.minus, LexerClass.greater, LexerAction.composite, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.minus, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.minus, ElnaLexerClass.greater, ElnaLexerAction.composite, ElnaLexerState.finish);
 
 	(* Left paren state. *)
-	_lexer_default_transition(LexerState.left_paren, LexerAction.finalize, LexerState.finish);
-	_lexer_set_transition(LexerState.left_paren, LexerClass.asterisk, LexerAction.accumulate, LexerState.comment);
+	_elna_lexer_default_transition(ElnaLexerState.left_paren, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.left_paren, ElnaLexerClass.asterisk, ElnaLexerAction.accumulate, ElnaLexerState.comment);
 
 	(* Less state. *)
-	_lexer_default_transition(LexerState.less, LexerAction.finalize, LexerState.finish);
-	_lexer_set_transition(LexerState.less, LexerClass.equals, LexerAction.composite, LexerState.finish);
-	_lexer_set_transition(LexerState.less, LexerClass.greater, LexerAction.composite, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.less, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.less, ElnaLexerClass.equals, ElnaLexerAction.composite, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.less, ElnaLexerClass.greater, ElnaLexerAction.composite, ElnaLexerState.finish);
 
 	(* Hexadecimal after 0x. *)
-	_lexer_default_transition(LexerState.dot, LexerAction.finalize, LexerState.finish);
-	_lexer_set_transition(LexerState.dot, LexerClass.dot, LexerAction.composite, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.dot, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.dot, ElnaLexerClass.dot, ElnaLexerAction.composite, ElnaLexerState.finish);
 
 	(* Comment. *)
-	_lexer_default_transition(LexerState.comment, LexerAction.accumulate, LexerState.comment);
-	_lexer_set_transition(LexerState.comment, LexerClass.asterisk, LexerAction.accumulate, LexerState.closing_comment);
-	_lexer_set_transition(LexerState.comment, LexerClass.eof, LexerAction.none, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.comment, ElnaLexerAction.accumulate, ElnaLexerState.comment);
+	_elna_lexer_set_transition(ElnaLexerState.comment, ElnaLexerClass.asterisk, ElnaLexerAction.accumulate, ElnaLexerState.closing_comment);
+	_elna_lexer_set_transition(ElnaLexerState.comment, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
 
 	(* Closing comment. *)
-	_lexer_default_transition(LexerState.closing_comment, LexerAction.accumulate, LexerState.comment);
-	_lexer_set_transition(LexerState.closing_comment, LexerClass.invalid, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.closing_comment, LexerClass.right_paren, LexerAction.delimited, LexerState.finish);
-	_lexer_set_transition(LexerState.closing_comment, LexerClass.asterisk, LexerAction.accumulate, LexerState.closing_comment);
-	_lexer_set_transition(LexerState.closing_comment, LexerClass.eof, LexerAction.none, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.closing_comment, ElnaLexerAction.accumulate, ElnaLexerState.comment);
+	_elna_lexer_set_transition(ElnaLexerState.closing_comment, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.closing_comment, ElnaLexerClass.right_paren, ElnaLexerAction.delimited, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.closing_comment, ElnaLexerClass.asterisk, ElnaLexerAction.accumulate, ElnaLexerState.closing_comment);
+	_elna_lexer_set_transition(ElnaLexerState.closing_comment, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
 
 	(* Character. *)
-	_lexer_default_transition(LexerState.character, LexerAction.accumulate, LexerState.character);
-	_lexer_set_transition(LexerState.character, LexerClass.invalid, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.character, LexerClass.eof, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.character, LexerClass.single_quote, LexerAction.delimited, LexerState.finish);
-	_lexer_set_transition(LexerState.character, LexerClass.backslash, LexerAction.accumulate, LexerState.character_escape);
+	_elna_lexer_default_transition(ElnaLexerState.character, ElnaLexerAction.accumulate, ElnaLexerState.character);
+	_elna_lexer_set_transition(ElnaLexerState.character, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.character, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.character, ElnaLexerClass.single_quote, ElnaLexerAction.delimited, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.character, ElnaLexerClass.backslash, ElnaLexerAction.accumulate, ElnaLexerState.character_escape);
 
 	(* Escape sequence in a character. *)
-	_lexer_default_transition(LexerState.character_escape, LexerAction.accumulate, LexerState.character);
-	_lexer_set_transition(LexerState.character_escape, LexerClass.invalid, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.character_escape, LexerClass.eof, LexerAction.none, LexerState.finish);
+	_elna_lexer_default_transition(ElnaLexerState.character_escape, ElnaLexerAction.accumulate, ElnaLexerState.character);
+	_elna_lexer_set_transition(ElnaLexerState.character_escape, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.character_escape, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
 
 	(* String. *)
-	_lexer_default_transition(LexerState.string, LexerAction.accumulate, LexerState.string);
-	_lexer_set_transition(LexerState.string, LexerClass.invalid, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.string, LexerClass.eof, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.string, LexerClass.double_quote, LexerAction.delimited, LexerState.finish);
-	_lexer_set_transition(LexerState.string, LexerClass.backslash, LexerAction.accumulate, LexerState.string_escape);
+	_elna_lexer_default_transition(ElnaLexerState.string, ElnaLexerAction.accumulate, ElnaLexerState.string);
+	_elna_lexer_set_transition(ElnaLexerState.string, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.string, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.string, ElnaLexerClass.double_quote, ElnaLexerAction.delimited, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.string, ElnaLexerClass.backslash, ElnaLexerAction.accumulate, ElnaLexerState.string_escape);
 
 	(* Escape sequence in a string. *)
-	_lexer_default_transition(LexerState.string_escape, LexerAction.accumulate, LexerState.string);
-	_lexer_set_transition(LexerState.string_escape, LexerClass.invalid, LexerAction.none, LexerState.finish);
-	_lexer_set_transition(LexerState.string_escape, LexerClass.eof, LexerAction.none, LexerState.finish)
+	_elna_lexer_default_transition(ElnaLexerState.string_escape, ElnaLexerAction.accumulate, ElnaLexerState.string);
+	_elna_lexer_set_transition(ElnaLexerState.string_escape, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.string_escape, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish)
 end;
 
 (**
@@ -4612,7 +4979,7 @@ end;
  * Each character entry is 1 word long and there are 256 characters.
  * 1024 = 256 * 4
  *)
-proc _lexer_get_transition_table();
+proc _elna_lexer_get_transition_table();
 	return @classification + 1024
 end;
 
@@ -4621,78 +4988,74 @@ end;
  * Each transition table entry is 8 bytes long. The table has 16 rows (transition states)
  * and 22 columns (character classes), so 2992 = 8 * 17 * 22.
  *)
-proc _lexer_global_state();
+proc _elna_lexer_global_state();
 var
 	result: Word;
 begin
-	result := _lexer_get_transition_table();
+	result := _elna_lexer_get_transition_table();
 	return  result + 2992
 end;
 
 (**
  * Gets pointer to the token start.
  *)
-proc _lexer_global_get_start();
+proc _elna_lexer_global_get_start();
 var
 	target: Word;
 begin
-	target := _lexer_global_state();
-	target := target + 4;
+	target := _elna_lexer_global_state() + 4;
 	return target^
 end;
 
 (**
  * Sets pointer to the token start.
  *)
-proc _lexer_global_set_start(new_start: Word);
+proc _elna_lexer_global_set_start(new_start: Word);
 var
 	target: Word;
 begin
-	target := _lexer_global_state();
-	target := target + 4;
+	target := _elna_lexer_global_state() + 4;
 	target^ := new_start
 end;
 
 (**
  * Gets pointer to the token end.
  *)
-proc _lexer_global_get_end();
+proc _elna_lexer_global_get_end();
 var
 	target: Word;
 begin
-	target := _lexer_global_state();
-	target := target + 8;
+	target := _elna_lexer_global_state() + 8;
 	return target^
 end;
 
 (**
  * Sets pointer to the token end.
  *)
-proc _lexer_global_set_end(new_start: Word);
+proc _elna_lexer_global_set_end(new_start: Word);
 var
 	target: Word;
 begin
-	target := _lexer_global_state();
-	target := target + 8;
+	target := _elna_lexer_global_state() + 8;
 	target^ := new_start
 end;
 
-proc _lexer_transition_get_action(this: Word);
+proc _elna_lexer_transition_get_action(this: Word);
 	return this^
 end;
 
-proc _lexer_transition_set_action(this: Word, value: Word);
+proc _elna_lexer_transition_set_action(this: Word, value: Word);
 begin
 	this^ := value
 end;
 
-proc _lexer_transition_get_state(this: Word);
+proc _elna_lexer_transition_get_state(this: Word);
 begin
 	this := this + 4;
 	return this^
 end;
 
-proc _lexer_transition_set_state(this: Word, value: Word);
+proc _elna_lexer_transition_set_state(this: Word, value: Word);
 begin
 	this := this + 4;
 	this^ := value
@@ -4701,48 +5064,48 @@ end;
 (**
  * Resets the lexer state for reading the next token.
  *)
-proc _lexer_reset();
+proc _elna_lexer_reset();
 var
 	state: Word;
 begin
 	(* Transition start state is 1. *)
-	state := _lexer_global_state();
-	state^ := LexerState.start;
+	state := _elna_lexer_global_state();
+	state^ := ElnaLexerState.start;
 
-	state := _lexer_global_get_start();
-	_lexer_global_set_end(state)
+	state := _elna_lexer_global_get_start();
+	_elna_lexer_global_set_end(state)
 end;
 
 (**
  * One time lexer initialization.
  *)
-proc _lexer_initialize(code_pointer: Word);
+proc _elna_lexer_initialize(code_pointer: Word);
 begin
-	_lexer_classifications();
-	_lexer_transitions();
+	_elna_lexer_classifications();
+	_elna_lexer_transitions();
 
-	_lexer_global_set_start(code_pointer);
-	_lexer_global_set_end(code_pointer)
+	_elna_lexer_global_set_start(code_pointer);
+	_elna_lexer_global_set_end(code_pointer)
 end;
 
-proc _lexer_next_transition();
+proc _elna_lexer_next_transition();
 var
 	current_character: Word;
 	character_class: Word;
 	current_state: Word;
 begin
-	current_character := _lexer_global_get_end();
+	current_character := _elna_lexer_global_get_end();
 	current_character := _load_byte(current_character);
 
 	character_class := _get_at(@classification, current_character + 1);
 
-	current_state := _lexer_global_state();
+	current_state := _elna_lexer_global_state();
 	current_state := current_state^;
 
-	return _lexer_get_transition(current_state, character_class)
+	return _elna_lexer_get_transition(current_state, character_class)
 end;
 
-proc _lexer_compare_keyword(lhs_pointer: Word, lhs_length: Word, rhs_pointer: Word, rhs_length: Word);
+proc _string_compare(lhs_pointer: Word, lhs_length: Word, rhs_pointer: Word, rhs_length: Word);
 var
 	result: Word;
 begin
@@ -4755,49 +5118,51 @@ begin
 	return result
 end;
 
-proc _lexer_classify_keyword(position_start: Word, position_end: Word);
+proc _elna_lexer_classify_keyword(position_start: Word, position_end: Word);
 var
 	result: Word;
 	token_length: Word;
 begin
-	result := LexerTokenKind.identifier;
+	result := ElnaLexerKind.identifier;
 	token_length := position_end - position_start;
 
-	if _lexer_compare_keyword(position_start, token_length, "const", 5) then
-		result := LexerTokenKind._const
-	elsif _lexer_compare_keyword(position_start, token_length, "var", 3) then
-		result := LexerTokenKind._var
-	elsif _lexer_compare_keyword(position_start, token_length, "proc", 4) then
-		result := LexerTokenKind._proc
-	elsif _lexer_compare_keyword(position_start, token_length, "type", 4) then
-		result := LexerTokenKind._type
-	elsif _lexer_compare_keyword(position_start, token_length, "begin", 5) then
-		result := LexerTokenKind._begin
-	elsif _lexer_compare_keyword(position_start, token_length, "end", 3) then
-		result := LexerTokenKind._end
-	elsif _lexer_compare_keyword(position_start, token_length, "return", 6) then
-		result := LexerTokenKind._return
-	elsif _lexer_compare_keyword(position_start, token_length, "goto", 4) then
-		result := LexerTokenKind._goto
-	elsif _lexer_compare_keyword(position_start, token_length, "if", 2) then
-		result := LexerTokenKind._if
-	elsif _lexer_compare_keyword(position_start, token_length, "while", 5) then
-		result := LexerTokenKind._while
-	elsif _lexer_compare_keyword(position_start, token_length, "then", 4) then
-		result := LexerTokenKind._then
-	elsif _lexer_compare_keyword(position_start, token_length, "else", 4) then
-		result := LexerTokenKind._else
-	elsif _lexer_compare_keyword(position_start, token_length, "elsif", 5) then
-		result := LexerTokenKind._elsif
-	elsif _lexer_compare_keyword(position_start, token_length, "or", 2) then
-		result := LexerTokenKind._or
-	elsif _lexer_compare_keyword(position_start, token_length, "xor", 2) then
-		result := LexerTokenKind._xor
+	if _string_compare(position_start, token_length, "const", 5) then
+		result := ElnaLexerKind._const
+	elsif _string_compare(position_start, token_length, "var", 3) then
+		result := ElnaLexerKind._var
+	elsif _string_compare(position_start, token_length, "proc", 4) then
+		result := ElnaLexerKind._proc
+	elsif _string_compare(position_start, token_length, "type", 4) then
+		result := ElnaLexerKind._type
+	elsif _string_compare(position_start, token_length, "begin", 5) then
+		result := ElnaLexerKind._begin
+	elsif _string_compare(position_start, token_length, "end", 3) then
+		result := ElnaLexerKind._end
+	elsif _string_compare(position_start, token_length, "return", 6) then
+		result := ElnaLexerKind._return
+	elsif _string_compare(position_start, token_length, "goto", 4) then
+		result := ElnaLexerKind._goto
+	elsif _string_compare(position_start, token_length, "if", 2) then
+		result := ElnaLexerKind._if
+	elsif _string_compare(position_start, token_length, "while", 5) then
+		result := ElnaLexerKind._while
+	elsif _string_compare(position_start, token_length, "then", 4) then
+		result := ElnaLexerKind._then
+	elsif _string_compare(position_start, token_length, "else", 4) then
+		result := ElnaLexerKind._else
+	elsif _string_compare(position_start, token_length, "elsif", 5) then
+		result := ElnaLexerKind._elsif
+	elsif _string_compare(position_start, token_length, "record", 6) then
+		result := ElnaLexerKind._record
+	elsif _string_compare(position_start, token_length, "or", 2) then
+		result := ElnaLexerKind._or
+	elsif _string_compare(position_start, token_length, "xor", 2) then
+		result := ElnaLexerKind._xor
 	end;
 	return result
 end;
 
-proc _lexer_classify_finalize(start_position: Word);
+proc _elna_lexer_classify_finalize(start_position: Word);
 var
 	character: Word;
 	result: Word;
@@ -4806,22 +5171,22 @@ begin
 	character := _load_byte(start_position);
 
 	if character = ':' then
-		result := LexerTokenKind.colon
+		result := ElnaLexerKind.colon
 	elsif character = '.' then
-		result := LexerTokenKind.dot
+		result := ElnaLexerKind.dot
 	elsif character = '(' then
-		result := LexerTokenKind.left_paren
+		result := ElnaLexerKind.left_paren
 	elsif character = '-' then
-		result := LexerTokenKind.minus
+		result := ElnaLexerKind.minus
 	elsif character = '<' then
-		result := LexerTokenKind.less_than
+		result := ElnaLexerKind.less_than
 	elsif character = '>' then
-		result := LexerTokenKind.greater_than
+		result := ElnaLexerKind.greater_than
 	end;
 	return result
 end;
 
-proc _lexer_classify_single(start_position: Word);
+proc _elna_lexer_classify_single(start_position: Word);
 var
 	character: Word;
 	result: Word;
@@ -4830,36 +5195,36 @@ begin
 	character := _load_byte(start_position);
 
 	if character = ';' then
-		result := LexerTokenKind.semicolon
+		result := ElnaLexerKind.semicolon
 	elsif character = ',' then
-		result := LexerTokenKind.comma
+		result := ElnaLexerKind.comma
 	elsif character = ')' then
-		result := LexerTokenKind.right_paren
+		result := ElnaLexerKind.right_paren
 	elsif character = '@' then
-		result := LexerTokenKind.at
+		result := ElnaLexerKind.at
 	elsif character = '~' then
-		result := LexerTokenKind.not
+		result := ElnaLexerKind.not
 	elsif character = '&' then
-		result := LexerTokenKind.and
+		result := ElnaLexerKind.and
 	elsif character = '+' then
-		result := LexerTokenKind.plus
+		result := ElnaLexerKind.plus
 	elsif character = '*' then
-		result := LexerTokenKind.multiplication
+		result := ElnaLexerKind.multiplication
 	elsif character = '=' then
-		result := LexerTokenKind.equals
+		result := ElnaLexerKind.equals
 	elsif character = '%' then
-		result := LexerTokenKind.remainder
+		result := ElnaLexerKind.remainder
 	elsif character = '/' then
-		result := LexerTokenKind.division
+		result := ElnaLexerKind.division
 	elsif character = '.' then
-		result := LexerTokenKind.dot
+		result := ElnaLexerKind.dot
 	elsif character = '^' then
-		result := LexerTokenKind.hat
+		result := ElnaLexerKind.hat
 	end;
 	return result
 end;
 
-proc _lexer_classify_composite(start_position: Word, one_before_last: Word);
+proc _elna_lexer_classify_composite(start_position: Word, one_before_last: Word);
 var
 	first_character: Word;
 	last_character: Word;
@@ -4869,23 +5234,23 @@ begin
 	last_character := _load_byte(one_before_last);
 
 	if first_character = ':' then
-		result := LexerTokenKind.assignment
+		result := ElnaLexerKind.assignment
 	elsif first_character = '<' then
 		if last_character = '=' then
-			result := LexerTokenKind.less_equal
+			result := ElnaLexerKind.less_equal
 		elsif last_character = '>' then
-			result := LexerTokenKind.not_equal
+			result := ElnaLexerKind.not_equal
 		end
 	elsif first_character = '>' then
 		if last_character = '=' then
-			result := LexerTokenKind.greater_equal
+			result := ElnaLexerKind.greater_equal
 		end
 	end;
 
 	return result
 end;
 
-proc _lexer_classify_delimited(start_position: Word, end_position: Word);
+proc _elna_lexer_classify_delimited(start_position: Word, end_position: Word);
 var
 	token_length: Word;
 	delimiter: Word;
@@ -4895,112 +5260,111 @@ begin
 	delimiter := _load_byte(start_position);
 
 	if delimiter = '(' then
-		result := LexerTokenKind.comment
+		result := ElnaLexerKind.comment
 	elsif delimiter = '\'' then
-		result := LexerTokenKind.character
+		result := ElnaLexerKind.character
 	elsif delimiter = '"' then
-		result := LexerTokenKind.string
+		result := ElnaLexerKind.string
 	end;
 	return result
 end;
 
-proc _lexer_classify_integer(start_position: Word, end_position: Word);
-begin
-	return LexerTokenKind.integer
+proc _elna_lexer_classify_integer(start_position: Word, end_position: Word);
+	return ElnaLexerKind.integer
 end;
 
-proc _lexer_execute_action(action_to_perform: Word, kind: Word);
+proc _elna_lexer_execute_action(action_to_perform: Word, kind: Word);
 var
 	position_start: Word;
 	position_end: Word;
 	intermediate: Word;
 begin
-	position_start := _lexer_global_get_start();
-	position_end := _lexer_global_get_end();
+	position_start := _elna_lexer_global_get_start();
+	position_end := _elna_lexer_global_get_end();
 
-	if action_to_perform = LexerAction.none then
-	elsif action_to_perform = LexerAction.accumulate then
-		_lexer_global_set_end(position_end + 1)
-	elsif action_to_perform = LexerAction.skip then
-		_lexer_global_set_start(position_start + 1);
-		_lexer_global_set_end(position_end + 1)
-	elsif action_to_perform = LexerAction.single then
-		_lexer_global_set_end(position_end + 1);
+	if action_to_perform = ElnaLexerAction.none then
+	elsif action_to_perform = ElnaLexerAction.accumulate then
+		_elna_lexer_global_set_end(position_end + 1)
+	elsif action_to_perform = ElnaLexerAction.skip then
+		_elna_lexer_global_set_start(position_start + 1);
+		_elna_lexer_global_set_end(position_end + 1)
+	elsif action_to_perform = ElnaLexerAction.single then
+		_elna_lexer_global_set_end(position_end + 1);
 
-		intermediate := _lexer_classify_single(position_start);
+		intermediate := _elna_lexer_classify_single(position_start);
 		kind^ := intermediate
-	elsif action_to_perform = LexerAction.eof then
-		intermediate := LexerTokenKind.eof;
+	elsif action_to_perform = ElnaLexerAction.eof then
+		intermediate := ElnaLexerKind.eof;
 		kind^ := intermediate
-	elsif action_to_perform = LexerAction.finalize then
-		intermediate := _lexer_classify_finalize(position_start);
+	elsif action_to_perform = ElnaLexerAction.finalize then
+		intermediate := _elna_lexer_classify_finalize(position_start);
 		kind^ := intermediate
-	elsif action_to_perform = LexerAction.composite then
-		_lexer_global_set_end(position_end + 1);
+	elsif action_to_perform = ElnaLexerAction.composite then
+		_elna_lexer_global_set_end(position_end + 1);
 
-		intermediate := _lexer_classify_composite(position_start, position_end);
+		intermediate := _elna_lexer_classify_composite(position_start, position_end);
 		kind^ := intermediate
-	elsif action_to_perform = LexerAction.key_id then
-		intermediate := _lexer_classify_keyword(position_start, position_end);
+	elsif action_to_perform = ElnaLexerAction.key_id then
+		intermediate := _elna_lexer_classify_keyword(position_start, position_end);
 		kind^ := intermediate
-	elsif action_to_perform = LexerAction.integer then
-		intermediate := _lexer_classify_integer(position_start, position_end);
+	elsif action_to_perform = ElnaLexerAction.integer then
+		intermediate := _elna_lexer_classify_integer(position_start, position_end);
 		kind^ := intermediate
-	elsif action_to_perform = LexerAction.delimited then
-		_lexer_global_set_end(position_end + 1);
+	elsif action_to_perform = ElnaLexerAction.delimited then
+		_elna_lexer_global_set_end(position_end + 1);
 
-		intermediate := _lexer_classify_delimited(position_start, position_end + 1);
+		intermediate := _elna_lexer_classify_delimited(position_start, position_end + 1);
 		kind^ := intermediate
-	end;
+	end
 end;
 
-proc _lexer_execute_transition(kind: Word);
+proc _elna_lexer_execute_transition(kind: Word);
 var
 	next_transition: Word;
 	next_state: Word;
 	global_state: Word;
 	action_to_perform: Word;
 begin
-	next_transition := _lexer_next_transition();
-	next_state := _lexer_transition_get_state(next_transition);
-	action_to_perform := _lexer_transition_get_action(next_transition);
+	next_transition := _elna_lexer_next_transition();
+	next_state := _elna_lexer_transition_get_state(next_transition);
+	action_to_perform := _elna_lexer_transition_get_action(next_transition);
 
-	global_state := _lexer_global_state();
+	global_state := _elna_lexer_global_state();
 
 	global_state^ := next_state;
-	_lexer_execute_action(action_to_perform, kind);
+	_elna_lexer_execute_action(action_to_perform, kind);
 
 	return next_state
 end;
 
-proc _lexer_advance_token(kind: Word);
+proc _elna_lexer_advance_token(kind: Word);
 var
 	result_state: Word;
 begin
-	result_state := _lexer_execute_transition(kind);
-	if result_state <> LexerState.finish then
-		_lexer_advance_token(kind)
+	result_state := _elna_lexer_execute_transition(kind);
+	if result_state <> ElnaLexerState.finish then
+		_elna_lexer_advance_token(kind)
 	end
 end;
 
 (**
  * Reads the next token and writes its type into the address in the kind parameter.
  *)
-proc _lexer_read_token(kind: Word);
+proc _elna_lexer_read_token(kind: Word);
 begin
-	_lexer_reset();
-	_lexer_advance_token(kind)
+	_elna_lexer_reset();
+	_elna_lexer_advance_token(kind)
 end;
 
 (**
  * Advances the token stream past the last read token.
  *)
-proc _lexer_skip_token();
+proc _elna_lexer_skip_token();
 var
 	old_end: Word;
 begin
-	old_end := _lexer_global_get_end();
-	_lexer_global_set_start(old_end)
+	old_end := _elna_lexer_global_get_end();
+	_elna_lexer_global_set_start(old_end)
 end;
 
 proc _initialize_global_state();
@@ -5020,7 +5384,7 @@ var
 	offset: Word;
 begin
 	_initialize_global_state();
-	_lexer_initialize(source_code);
+	_elna_lexer_initialize(source_code);
 	_symbol_table_build();
 
 	(* Read the source from the standard input. *)
diff --git a/boot/stage16.elna b/boot/stage16.elna
new file mode 100644
index 0000000..cd56cc2
--- /dev/null
+++ b/boot/stage16.elna
@@ -0,0 +1,4772 @@
+(*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ *)
+
+(* Stage 15 compiler. *)
+
+type
+	_elna_tac_declaration = record
+		next: Word;
+		name: Word;
+		length: Word;
+		body: Word
+	end;
+	_node = record
+		kind: Word
+	end;
+	_integer_literal_node = record
+		kind: Word;
+		value: Word;
+		length: Word
+	end;
+	_character_literal_node = record
+		kind: Word;
+		value: Word;
+		length: Word
+	end;
+	_variable_expression = record
+		kind: Word;
+		name: Word;
+		length: Word
+	end;
+	_string_literal_node = record
+		kind: Word;
+		value: Word;
+		length: Word
+	end;
+	_dereference_expression = record
+		kind: Word;
+		pointer: Word
+	end;
+	_binary_expression = record
+		kind: Word;
+		lhs: Word;
+		rhs: Word;
+		operator: Word
+	end;
+	_unary_expression = record
+		kind: Word;
+		operand: Word;
+		operator: Word
+	end;
+	_if_statement = record
+		kind: Word;
+		next: Word;
+		conditionals: Word;
+		_else: Word
+	end;
+
+	(**
+	 * All statements are chained into a list. Next contains a pointer to the next
+	 * statement in the statement list.
+	 *)
+	_statement = record
+		kind: Word;
+		next: Word
+	end;
+	_goto_statement = record
+		kind: Word;
+		next: Word;
+		label: Word;
+		length: Word
+	end;
+	_label_declaration = record
+		kind: Word;
+		next: Word;
+		label: Word;
+		length: Word
+	end;
+	_field_access_expression = record
+		kind: Word;
+		aggregate: Word;
+		field: Word;
+		length: Word
+	end;
+	_elna_tac_module = record
+		data: Word;
+		code: Word
+	end;
+	_module_declaration = record
+		kind: Word;
+		types: Word;
+		globals: Word;
+		procedures: Word
+	end;
+	_assign_statement = record
+		kind: Word;
+		next: Word;
+		assignee: Word;
+		assignment: Word
+	end;
+	_return_statement = record
+		kind: Word;
+		next: Word;
+		returned: Word
+	end;
+	_type = record
+		kind: Word;
+		size: Word
+	end;
+	_enumeration_type = record
+		kind: Word;
+		size: Word;
+		members: Word;
+		length: Word
+	end;
+	_enumeration_type_expression = record
+		kind: Word;
+		members: Word;
+		length: Word
+	end;
+	_record_type = record
+		kind: Word;
+		size: Word;
+		members: Word;
+		length: Word
+	end;
+	_record_type_expression = record
+		kind: Word;
+		members: Word;
+		length: Word
+	end;
+	_named_type_expression = record
+		kind: Word;
+		name: Word;
+		length: Word
+	end;
+
+	(**
+	 * Conditional statements is a list of pairs: condition and statements.
+	 * Used for example to represent if and elsif blocks with beloning statements.
+	 *)
+	_conditional_statements = record
+		condition: Word;
+		statements: Word;
+		next: Word
+	end;
+
+	_declaration = record
+		kind: Word;
+		next: Word;
+		name: Word;
+		length: Word
+	end;
+	_procedure_declaration = record
+		kind: Word;
+		next: Word;
+		name: Word;
+		length: Word;
+		body: Word;
+		temporaries: Word;
+		parameters: Word
+	end;
+	_type_declaration = record
+		kind: Word;
+		next: Word;
+		name: Word;
+		length: Word;
+		_type: Word
+	end;
+	_variable_declaration = record
+		kind: Word;
+		next: Word;
+		name: Word;
+		length: Word;
+		_type: Word
+	end;
+
+	ElnaLexerAction = (none, accumulate, skip, single, eof, finalize, composite, key_id, integer, delimited);
+
+	(**
+	 * Classification table assigns each possible character to a group (class). All
+	 * characters of the same group a handled equivalently.
+	 *
+	 * Transition = record
+	 *   action: TransitionAction;
+	 *   next_state: TransitionState
+	 * end;
+	 *)
+	ElnaLexerClass = (
+		invalid,
+		digit,
+		alpha,
+		space,
+		colon,
+		equals,
+		left_paren,
+		right_paren,
+		asterisk,
+		backslash,
+		single,
+		hex,
+		zero,
+		x,
+		eof,
+		dot,
+		minus,
+		single_quote,
+		double_quote,
+		greater,
+		less,
+		other
+	);
+	ElnaLexerState = (
+		start,
+		colon,
+		identifier,
+		decimal,
+		leading_zero,
+		greater,
+		minus,
+		left_paren,
+		less,
+		dot,
+		comment,
+		closing_comment,
+		character,
+		character_escape,
+		string,
+		string_escape,
+		finish
+	);
+	ElnaLexerKind = (
+		identifier,
+		_const,
+		_var,
+		_proc,
+		_type,
+		_begin,
+		_end,
+		_if,
+		_then,
+		_else,
+		_elsif,
+		_while,
+		_do,
+		_extern,
+		_record,
+		_true,
+		_false,
+		null,
+		and,
+		_or,
+		_xor,
+		pipe,
+		not,
+		_return,
+		_module,
+		_program,
+		_import,
+		_cast,
+		_defer,
+		_case,
+		_of,
+		trait,
+		left_paren,
+		right_paren,
+		left_square,
+		right_square,
+		shift_left,
+		shift_right,
+		greater_equal,
+		less_equal,
+		greater_than,
+		less_than,
+		not_equal,
+		equals,
+		semicolon,
+		dot,
+		comma,
+		plus,
+		arrow,
+		minus,
+		multiplication,
+		division,
+		remainder,
+		assignment,
+		colon,
+		hat,
+		at,
+		comment,
+		string,
+		character,
+		integer,
+		word,
+		_goto,
+		eof
+	);
+	NodeKind = (
+		integer_literal,
+		string_literal,
+		character_literal,
+		variable_expression,
+		field_access_expression,
+		dereference_expression,
+		unary_expression,
+		binary_expression,
+		call,
+		goto_statement,
+		label_declaration,
+		return_statement,
+		assign_statement,
+		if_statement,
+		procedure_declaration,
+		variable_declaration,
+		enumeration_type_expression,
+		named_type_expression,
+		type_declaration,
+		module_declaration,
+		record_type_expression
+	);
+	InfoKind = (type_info, parameter_info, temporary_info, procedure_info);
+	TypeKind = (primitive, enumeration, _record);
+	ElnaTacOperator = (
+		load_immediate,
+		load_address,
+		add,
+		add_immediate,
+		load_word,
+		store_word,
+		jal,
+		move,
+		sub,
+		div,
+		rem,
+		mul,
+		_xor,
+		_or,
+		and,
+		seqz,
+		snez,
+		slt,
+		xor_immediate,
+		neg,
+		not,
+		jump,
+		beqz,
+		label,
+		start,
+		ret
+	);
+	ElnaTacOperand = (register, immediate, symbol, offset);
+	ElnaTacRegister = (
+		zero,
+		ra,
+		sp,
+		gp,
+		tp,
+		t0,
+		t1,
+		t2,
+		s0,
+		s1,
+		a0,
+		a1,
+		a2,
+		a3,
+		a4,
+		a5,
+		a6,
+		a7,
+		s2,
+		s3,
+		s4,
+		s5,
+		s6,
+		s7,
+		s8,
+		s9,
+		s10,
+		s11,
+		t3,
+		t4,
+		t5,
+		t6
+	);
+
+var
+	symbol_table_global: Array;
+	compiler_strings: Array;
+	classification: Array;
+
+	source_code: Word;
+	compiler_strings_position: Word;
+	compiler_strings_length: Word;
+	label_counter: Word;
+	symbol_table_store: Word;
+
+	(* Points to a segment of free memory. *)
+	memory_free_pointer: Word;
+
+(**
+ * Calculates and returns the string token length between quotes, including the
+ * escaping slash characters.
+ *
+ * Parameters:
+ * string - String token pointer.
+ *
+ * Returns the length in a0.
+ *)
+proc _string_length(string: Word);
+var
+	counter: Word;
+	current_byte: Word;
+begin
+	(* Reset the counter. *)
+	counter := 0;
+
+	.string_length_loop;
+	string := string + 1;
+
+	current_byte := _load_byte(string);
+	if current_byte <> '"' then
+		counter := counter + 1;
+		goto string_length_loop
+	end;
+
+	return counter
+end;
+
+(**
+ * Adds a string to the global, read-only string storage.
+ *
+ * Parameters:
+ * string - String token.
+ *
+ * Returns the offset from the beginning of the storage to the new string in a0.
+ *)
+proc _add_string(string: Word);
+var
+	contents: Word;
+	result: Word;
+	current_byte: Word;
+begin
+	contents := string + 1;
+	result := compiler_strings_length;
+
+	.add_string_loop;
+	current_byte := _load_byte(contents);
+	if current_byte <> '"' then
+		_store_byte(current_byte, compiler_strings_position);
+		compiler_strings_position := compiler_strings_position + 1;
+		contents := contents + 1;
+
+		if current_byte <> '\\' then
+			compiler_strings_length := compiler_strings_length + 1
+		end;
+		goto add_string_loop
+	end;
+
+	return result
+end;
+
+(**
+ * Reads standard input into a buffer.
+ *
+ * Parameters:
+ * buffer - Buffer pointer.
+ * size - Buffer size.
+ *
+ * Returns the amount of bytes written in a0.
+ *)
+proc _read_file(buffer: Word, size: Word);
+	return _syscall(0, buffer, size, 0, 0, 0, 63)
+end;
+
+(**
+ * MAP_ANONYMOUS is 32.
+ * PROT_READ | PORT_WRITE is (1 | 2).
+ * MAP_ANONYMOUS | MAP_PRIVATE is (32 | 2)
+ *)
+proc _mmap(length: Word);
+	return _syscall(0, length, 1 or 2, 32 or 2, -1, 0, 222)
+end;
+
+(**
+ * Writes to the standard output.
+ *
+ * Parameters:
+ * buffer - Buffer.
+ * size - Buffer length.
+ *)
+proc _write_s(buffer: Word, size: Word);
+begin
+	_syscall(1, buffer, size, 0, 0, 0, 64)
+end;
+
+(**
+ * Writes a number to a string buffer.
+ *
+ * Parameters:
+ * number - Whole number.
+ * output_buffer - Buffer pointer.
+ *
+ * Sets a0 to the length of the written number.
+ *)
+proc _print_i(number: Word, output_buffer: Word);
+var
+	local_buffer: Word;
+	is_negative: Word;
+	current_character: Word;
+	result: Word;
+begin
+	local_buffer := @result + 11;
+
+	if number >= 0 then
+		is_negative := 0
+	else
+		number = -number;
+		is_negative := 1
+	end;
+
+	.print_i_digit10;
+	current_character := number % 10;
+	_store_byte(current_character + '0', local_buffer);
+
+	number := number / 10;
+	local_buffer := local_buffer - 1;
+
+	if number <> 0 then
+		goto print_i_digit10
+	end;
+	if is_negative = 1 then
+		_store_byte('-', local_buffer);
+		local_buffer := local_buffer - 1
+	end;
+	result := @result + 11;
+	result := result - local_buffer;
+	_memcpy(output_buffer, local_buffer + 1, result);
+
+	return result
+end;
+
+(**
+ * Writes a number to the standard output.
+ *
+ * Parameters:
+ * number - Whole number.
+ *)
+proc _write_i(number: Word);
+var
+	local_buffer: Word;
+	length: Word;
+begin
+	length := _print_i(number, @local_buffer);
+	_write_s(@local_buffer, length)
+end;
+
+(**
+ * Writes a character from a0 into the standard output.
+ *
+ * Parameters:
+ * character - Character to write.
+ *)
+proc _write_c(character: Word);
+begin
+	_write_s(@character, 1)
+end;
+
+(**
+ * Write null terminated string.
+ *
+ * Parameters:
+ * string - String.
+ *)
+proc _write_z(string: Word);
+var
+	next_byte: Word;
+begin
+	(* Check for 0 character. *)
+	next_byte := _load_byte(string);
+
+	if next_byte <> 0 then
+		(* Print a character. *)
+		_write_c(next_byte);
+
+		(* Advance the input string by one byte. *)
+		_write_z(string + 1)
+	end
+end;
+
+(**
+ * Detects if a0 is an uppercase character. Sets a0 to 1 if so, otherwise to 0.
+ *)
+proc _is_upper(character: Word);
+var
+	lhs: Word;
+	rhs: Word;
+begin
+	lhs := character >= 'A';
+	rhs := character <= 'Z';
+
+	return lhs & rhs
+end;
+
+(**
+ * Detects if a0 is an lowercase character. Sets a0 to 1 if so, otherwise to 0.
+ *)
+proc _is_lower(character: Word);
+var
+	lhs: Word;
+	rhs: Word;
+begin
+	lhs := character >= 'a';
+	rhs := character <= 'z';
+
+	return lhs & rhs
+end;
+
+(**
+ * Detects if the passed character is a 7-bit alpha character or an underscore.
+ *
+ * Paramters:
+ * character - Tested character.
+ *
+ * Sets a0 to 1 if the character is an alpha character or underscore, sets it to 0 otherwise.
+ *)
+proc _is_alpha(character: Word);
+var
+	is_upper_result: Word;
+	is_lower_result: Word;
+	is_alpha_result: Word;
+	is_underscore: Word;
+begin
+	is_upper_result := _is_upper(character);
+	is_lower_result := _is_lower(character);
+	is_underscore := character = '_';
+
+	is_alpha_result := is_lower_result or is_upper_result;
+	return is_alpha_result or is_underscore
+end;
+
+(**
+ * Detects whether the passed character is a digit (a value between 0 and 9).
+ *
+ * Parameters:
+ * character - Exemined value.
+ *
+ * Sets a0 to 1 if it is a digit, to 0 otherwise.
+ *)
+proc _is_digit(character: Word);
+var
+	lhs: Word;
+	rhs: Word;
+begin
+	lhs := character >= '0';
+	rhs := character <= '9';
+
+	return lhs & rhs
+end;
+
+proc _is_alnum(character: Word);
+var
+	lhs: Word;
+	rhs: Word;
+begin
+	lhs := _is_alpha(character);
+	rhs := _is_digit(character);
+
+	return lhs or rhs
+end;
+
+(**
+ * Parameters:
+ * lhs - First pointer.
+ * rhs - Second pointer.
+ * count - The length to compare.
+ *
+ * Returns 0 if memory regions are equal.
+ *)
+proc _memcmp(lhs: Word, rhs: Word, count: Word);
+var
+	lhs_byte: Word;
+	rhs_byte: Word;
+	result: Word;
+begin
+	result := 0;
+
+	.memcmp_loop;
+	if count <> 0 then
+		lhs_byte := _load_byte(lhs);
+		rhs_byte := _load_byte(rhs);
+		result := lhs_byte - rhs_byte;
+
+		lhs := lhs + 1;
+		rhs := rhs + 1;
+		count := count - 1;
+
+		if result = 0 then
+			goto memcmp_loop
+		end
+	end;
+
+	return result
+end;
+
+(**
+ * Copies memory.
+ *
+ * Parameters:
+ * destination - Destination.
+ * source - Source.
+ * count - Size.
+ *
+ * Returns the destination.
+ *)
+proc _memcpy(destination: Word, source: Word, count: Word);
+var
+	current_byte: Word;
+begin
+	.memcpy_loop;
+	if count <> 0 then
+		current_byte := _load_byte(source);
+		_store_byte(current_byte, destination);
+
+		destination := destination + 1;
+		source := source + 1;
+		count := count - 1;
+		goto memcpy_loop
+	end;
+
+	return destination
+end;
+
+proc _elna_tac_instruction_size();
+	return 44
+end;
+
+proc _elna_tac_instruction_get_kind(this: Word);
+	return this^
+end;
+
+proc _elna_tac_instruction_set_kind(this: Word, value: Word);
+begin
+	this^ := value
+end;
+
+proc _elna_tac_instruction_get_next(this: Word);
+begin
+	this := this + 4;
+	return this^
+end;
+
+proc _elna_tac_instruction_set_next(this: Word, value: Word);
+begin
+	.elna_tac_instruction_set_next_loop;
+	this := this + 4;
+	if value <> 0 then
+		if this^ <> 0 then
+			this := this^;
+			goto elna_tac_instruction_set_next_loop
+		end
+	end;
+	this^ := value
+end;
+
+proc _elna_tac_instruction_get_operand_type(this: Word, n: Word);
+begin
+	n := n - 1;
+	n := n * 12;
+	this := this + 8;
+	this := this + n;
+
+	return this^
+end;
+
+proc _elna_tac_instruction_get_operand_value(this: Word, n: Word);
+begin
+	n := n - 1;
+	n := n * 12;
+	this := this + 8;
+	this := this + n;
+
+	this := this + 4;
+	return this^
+end;
+
+proc _elna_tac_instruction_get_operand_length(this: Word, n: Word);
+begin
+	n := n - 1;
+	n := n * 12;
+	this := this + 8;
+	this := this + n;
+
+	this := this + 8;
+	return this^
+end;
+
+proc _elna_tac_instruction_set_operand(this: Word, n: Word, operand_type: Word, operand_value: Word, operand_length: Word);
+begin
+	n := n - 1;
+	n := n * 12;
+	this := this + 8;
+	this := this + n;
+
+	this^ := operand_type;
+	this := this + 4;
+	this^ := operand_value;
+	this := this + 4;
+	this^ := operand_length
+end;
+
+proc _elna_tac_instruction_create(kind: Word);
+var
+	result: Word;
+	instruction_size: Word;
+begin
+	instruction_size := _elna_tac_instruction_size();
+	result := _allocate(instruction_size);
+
+	_elna_tac_instruction_set_kind(result, kind);
+	_elna_tac_instruction_set_next(result, 0);
+
+	return result
+end;
+
+proc _elna_tac_module_create(data: Word, code: Word);
+var
+	result: Word;
+	result_size: Word;
+begin
+	result_size := _elna_tac_module_size();
+	result := _allocate(result_size);
+
+	_elna_tac_module_set_data(result, data);
+	_elna_tac_module_set_code(result, code);
+
+	return result
+end;
+
+proc _elna_tac_load_immediate(target_register: Word, source_immediate: Word, immediate_length: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.load_immediate);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, target_register, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.immediate, source_immediate, immediate_length);
+
+	return result
+end;
+
+proc _elna_tac_load_address(target_register: Word, source_symbol: Word, symbol_length: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.load_address);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, target_register, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.symbol, source_symbol, symbol_length);
+
+	return result
+end;
+
+proc _elna_tac_beqz(target_register: Word, source_symbol: Word, symbol_length: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.beqz);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, target_register, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.symbol, source_symbol, symbol_length);
+
+	return result
+end;
+
+proc _elna_tac_jump(source_symbol: Word, symbol_length: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.jump);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.symbol, source_symbol, symbol_length);
+
+	return result
+end;
+
+proc _elna_tac_add(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.add);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_mul(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.mul);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_sub(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.sub);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_div(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.div);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_rem(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.rem);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_xor(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator._xor);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_xor_immediate(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator._xor);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.immediate, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_or(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator._or);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_and(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.and);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_add_immediate(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.add_immediate);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.immediate, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_slt(destination: Word, lhs: Word, rhs: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.slt);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, lhs, 0);
+	_elna_tac_instruction_set_operand(result, 3, ElnaTacOperand.register, rhs, 0);
+
+	return result
+end;
+
+proc _elna_tac_jal(symbol: Word, length: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.jal);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.symbol, symbol, length);
+
+	return result
+end;
+
+proc _elna_tac_load_word(target: Word, register: Word, offset: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.load_word);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, target, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.offset, register, offset);
+
+	return result
+end;
+
+proc _elna_tac_store_word(target: Word, register: Word, offset: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.store_word);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, target, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.offset, register, offset);
+
+	return result
+end;
+
+proc _elna_tac_move(destination: Word, source: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.move);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, source, 0);
+
+	return result
+end;
+
+proc _elna_tac_seqz(destination: Word, source: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.seqz);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, source, 0);
+
+	return result
+end;
+
+proc _elna_tac_snez(destination: Word, source: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.snez);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, source, 0);
+
+	return result
+end;
+
+proc _elna_tac_neg(destination: Word, source: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.neg);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, source, 0);
+
+	return result
+end;
+
+proc _elna_tac_not(destination: Word, source: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.not);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.register, destination, 0);
+	_elna_tac_instruction_set_operand(result, 2, ElnaTacOperand.register, source, 0);
+
+	return result
+end;
+
+proc _elna_tac_label(counter: Word, length: Word);
+var
+	result: Word;
+begin
+	result := _elna_tac_instruction_create(ElnaTacOperator.label);
+
+	_elna_tac_instruction_set_operand(result, 1, ElnaTacOperand.symbol, counter, length);
+
+	return result
+end;
+
+proc _elna_writer_instruction_name(instruction_kind: Word);
+var
+	argument_count: Word;
+begin
+	if instruction_kind = ElnaTacOperator.load_immediate then
+		argument_count := 2;
+		_write_s("\tli", 3)
+	elsif instruction_kind = ElnaTacOperator.load_address then
+		argument_count := 2;
+		_write_s("\tla", 3)
+	elsif instruction_kind = ElnaTacOperator.add then
+		argument_count := 3;
+		_write_s("\tadd", 4)
+	elsif instruction_kind = ElnaTacOperator.add_immediate then
+		argument_count := 3;
+		_write_s("\taddi", 5)
+	elsif instruction_kind = ElnaTacOperator.load_word then
+		argument_count := 2;
+		_write_s("\tlw", 3)
+	elsif instruction_kind = ElnaTacOperator.store_word then
+		argument_count := 2;
+		_write_s("\tsw", 3)
+	elsif instruction_kind = ElnaTacOperator.jal then
+		argument_count := 1;
+		_write_s("\tcall", 5)
+	elsif instruction_kind = ElnaTacOperator.move then
+		argument_count := 2;
+		_write_s("\tmv", 3)
+	elsif instruction_kind = ElnaTacOperator.sub then
+		argument_count := 3;
+		_write_s("\tsub", 4)
+	elsif instruction_kind = ElnaTacOperator.mul then
+		argument_count := 3;
+		_write_s("\tmul", 4)
+	elsif instruction_kind = ElnaTacOperator.div then
+		argument_count := 3;
+		_write_s("\tdiv", 4)
+	elsif instruction_kind = ElnaTacOperator.rem then
+		argument_count := 3;
+		_write_s("\trem", 4)
+	elsif instruction_kind = ElnaTacOperator._xor then
+		argument_count := 3;
+		_write_s("\txor", 4)
+	elsif instruction_kind = ElnaTacOperator.xor_immediate then
+		argument_count := 3;
+		_write_s("\txori", 5)
+	elsif instruction_kind = ElnaTacOperator._or then
+		argument_count := 3;
+		_write_s("\tor", 3)
+	elsif instruction_kind = ElnaTacOperator.and then
+		argument_count := 3;
+		_write_s("\tand", 4)
+	elsif instruction_kind = ElnaTacOperator.seqz then
+		argument_count := 2;
+		_write_s("\tseqz", 5)
+	elsif instruction_kind = ElnaTacOperator.snez then
+		argument_count := 2;
+		_write_s("\tsnez", 5)
+	elsif instruction_kind = ElnaTacOperator.slt then
+		argument_count := 3;
+		_write_s("\tslt", 4)
+	elsif instruction_kind = ElnaTacOperator.neg then
+		argument_count := 2;
+		_write_s("\tneg", 4)
+	elsif instruction_kind = ElnaTacOperator.not then
+		argument_count := 2;
+		_write_s("\tnot", 4)
+	elsif instruction_kind = ElnaTacOperator.jump then
+		argument_count := 1;
+		_write_s("\tj", 2)
+	elsif instruction_kind = ElnaTacOperator.beqz then
+		argument_count := 2;
+		_write_s("\tbeqz", 5)
+	elsif instruction_kind = ElnaTacOperator.start then
+		argument_count := 0;
+		_write_z("\taddi sp, sp, -128\n\tsw ra, 124(sp)\n\tsw s0, 120(sp)\n\taddi s0, sp, 128\0")
+	elsif instruction_kind = ElnaTacOperator.ret then
+		argument_count := 0;
+		_write_z("\tlw ra, 124(sp)\n\tlw s0, 120(sp)\n\taddi sp, sp, 128\0")
+	end;
+	return argument_count
+end;
+
+proc _elna_writer_register(register: Word);
+begin
+	_write_c('x');
+	_write_i(register - 1)
+end;
+
+proc _elna_writer_operand(instruction: Word, n: Word);
+var
+	operand_value: Word;
+	operand_length: Word;
+	operand_type: Word;
+begin
+	operand_type := _elna_tac_instruction_get_operand_type(instruction, n);
+	operand_value := _elna_tac_instruction_get_operand_value(instruction, n);
+	operand_length := _elna_tac_instruction_get_operand_length(instruction, n);
+
+	_write_c(' ');
+	if operand_type = ElnaTacOperand.register then
+		_elna_writer_register(operand_value)
+	elsif operand_type = ElnaTacOperand.offset then
+		_write_i(operand_length);
+		_write_c('(');
+		_elna_writer_register(operand_value);
+		_write_c(')')
+	elsif operand_type = ElnaTacOperand.symbol then
+		if operand_length = 0 then
+			_write_label(operand_value, 0)
+		else
+			_write_s(operand_value, operand_length)
+		end
+	elsif operand_length = 0 then (* ElnaTacOperand.immediate *)
+		_write_i(operand_value)
+	else
+		_write_s(operand_value, operand_length)
+	end
+end;
+
+proc _elna_writer_instruction(instruction: Word);
+var
+	instruction_kind: Word;
+	argument_count: Word;
+	current_argument: Word;
+	operand_value: Word;
+	operand_length: Word;
+begin
+	instruction_kind := _elna_tac_instruction_get_kind(instruction);
+
+	if instruction_kind = ElnaTacOperator.label then
+		argument_count := 0;
+		operand_value := _elna_tac_instruction_get_operand_value(instruction, 1);
+		operand_length := _elna_tac_instruction_get_operand_length(instruction, 1);
+		_write_label(operand_value, operand_length);
+		_write_c(':')
+	else
+		argument_count := _elna_writer_instruction_name(instruction_kind)
+	end;
+	current_argument := 1;
+
+	.elna_writer_instruction_loop;
+	if current_argument <= argument_count then
+		_elna_writer_operand(instruction, current_argument);
+		current_argument := current_argument + 1
+	end;
+	if current_argument <= argument_count then
+		_write_c(',');
+		goto elna_writer_instruction_loop
+	end;
+
+	_write_c('\n')
+end;
+
+proc _elna_writer_instructions(instruction: Word);
+begin
+	if instruction <> 0 then
+		_elna_writer_instruction(instruction);
+		instruction := _elna_tac_instruction_get_next(instruction);
+		_elna_writer_instructions(instruction)
+	end
+end;
+
+proc _elna_writer_procedure(procedure: Word);
+var
+	name_pointer: Word;
+	name_length: Word;
+	body_statements: Word;
+begin
+	.elna_writer_procedure_loop;
+	name_pointer := _elna_tac_declaration_get_name(procedure);
+	name_length := _elna_tac_declaration_get_length(procedure);
+	body_statements := _elna_tac_declaration_get_body(procedure);
+
+	(* Write .type _procedure_name, @function. *)
+	_write_z(".type \0");
+
+	_write_s(name_pointer, name_length);
+	_write_z(", @function\n\0");
+
+	(* Write procedure label, _procedure_name: *)
+	_write_s(name_pointer, name_length);
+	_write_z(":\n\0");
+
+	_elna_writer_instructions(body_statements);
+	_write_z("\tret\n\0");
+
+	procedure := _elna_tac_declaration_get_next(procedure);
+	if procedure <> 0 then
+		goto elna_writer_procedure_loop
+	end
+end;
+
+proc _elna_writer_variable(variable: Word);
+var
+	name: Word;
+	name_length: Word;
+	size: Word;
+begin
+	.elna_writer_variable_loop;
+	if variable <> 0 then
+		name := _elna_tac_declaration_get_name(variable);
+		name_length := _elna_tac_declaration_get_length(variable);
+		size := _elna_tac_declaration_get_body(variable);
+
+		_write_z(".type \0");
+		_write_s(name, name_length);
+		_write_z(", @object\n\0");
+
+		_write_s(name, name_length);
+		_write_c(':');
+
+		_write_z(" .zero \0");
+		_write_i(size);
+
+		_write_c('\n');
+		variable := _elna_tac_declaration_get_next(variable);
+
+		goto elna_writer_variable_loop
+	end
+end;
+
+proc _elna_writer_module(pair: Word);
+var
+	compiler_strings_copy: Word;
+	compiler_strings_end: Word;
+	current_byte: Word;
+	current_part: Word;
+begin
+	_write_z(".globl _start\n\n\0");
+	_write_z(".section .data\n\0");
+
+	current_part := _elna_tac_module_get_data(pair);
+	_elna_writer_variable(current_part);
+
+	_write_z(".section .text\n\n\0");
+	_write_z(".type _syscall, @function\n_syscall:\n\tmv a7, a6\n\tecall\n\tret\n\n\0");
+	_write_z(".type _load_byte, @function\n_load_byte:\n\tlb a0, (a0)\nret\n\n\0");
+	_write_z(".type _store_byte, @function\n_store_byte:\n\tsb a0, (a1)\nret\n\n\0");
+
+	current_part := _elna_tac_module_get_code(pair);
+	_elna_writer_procedure(current_part);
+
+	_write_z(".section .rodata\n.type strings, @object\nstrings: .ascii \0");
+	_write_c('"');
+
+	compiler_strings_copy := @compiler_strings;
+	compiler_strings_end := compiler_strings_position;
+
+	.elna_writer_module_loop;
+	if compiler_strings_copy < compiler_strings_end then
+		current_byte := _load_byte(compiler_strings_copy);
+		compiler_strings_copy := compiler_strings_copy + 1;
+		_write_c(current_byte);
+
+		goto elna_writer_module_loop
+	end;
+	_write_c('"');
+	_write_c('\n');
+end;
+
+proc _elna_parser_integer_literal();
+var
+	integer_token: Word;
+	integer_length: Word;
+	result: Word;
+	literal_size: Word;
+begin
+	literal_size := _integer_literal_node_size();
+	result := _allocate(literal_size);
+
+	integer_token := _elna_lexer_global_get_start();
+	integer_length := _elna_lexer_global_get_end();
+	integer_length := integer_length -  integer_token;
+	_elna_lexer_skip_token();
+
+	_node_set_kind(result, NodeKind.integer_literal);
+	_integer_literal_node_set_value(result, integer_token);
+	_integer_literal_node_set_length(result, integer_length);
+
+	return result
+end;
+
+proc _elna_tac_integer_literal(integer_literal_node: Word);
+var
+	integer_token: Word;
+	integer_length: Word;
+	token_kind: Word;
+begin
+	integer_token := _integer_literal_node_get_value(integer_literal_node);
+	integer_length := _integer_literal_node_get_length(integer_literal_node);
+
+	return _elna_tac_load_immediate(ElnaTacRegister.t0, integer_token, integer_length)
+end;
+
+proc _elna_parser_character_literal();
+var
+	character: Word;
+	character_length: Word;
+	result: Word;
+	literal_size: Word;
+begin
+	literal_size := _character_literal_node_size();
+	result := _allocate(literal_size);
+
+	character := _elna_lexer_global_get_start();
+	character_length := _elna_lexer_global_get_end();
+	character_length := character_length - character;
+	_elna_lexer_skip_token();
+
+	_node_set_kind(result, NodeKind.character_literal);
+	_integer_literal_node_set_value(result, character);
+	_integer_literal_node_set_length(result, character_length);
+
+	return result
+end;
+
+proc _elna_tac_character_literal(character_literal_node: Word);
+var
+	character: Word;
+	character_length: Word;
+begin
+	character := _character_literal_node_get_value(character_literal_node);
+	character_length := _character_literal_node_get_length(character_literal_node);
+
+	return _elna_tac_load_immediate(ElnaTacRegister.t0, character, character_length)
+end;
+
+proc _allocate(size: Word);
+var
+	result: Word;
+begin
+	result := memory_free_pointer;
+	memory_free_pointer := memory_free_pointer + size;
+	return result
+end;
+
+proc _elna_parser_variable_expression();
+var
+	name: Word;
+	name_token: Word;
+	result: Word;
+	memory_size: Word;
+begin
+	name := _elna_lexer_global_get_start();
+	name_token := _elna_lexer_global_get_end();
+	name_token := name_token - name;
+	_elna_lexer_skip_token();
+
+	memory_size := _variable_expression_size();
+	result := _allocate(memory_size);
+
+	_node_set_kind(result, NodeKind.variable_expression);
+	_variable_expression_set_name(result, name);
+	_variable_expression_set_length(result, name_token);
+
+	return result
+end;
+
+proc _elna_tac_variable_expression(variable_expression: Word, symbol_table: Word);
+var
+	name: Word;
+	name_token: Word;
+	lookup_result: Word;
+	instruction: Word;
+begin
+	name := _variable_expression_get_name(variable_expression);
+	name_token := _variable_expression_get_length(variable_expression);
+
+	lookup_result := _symbol_table_lookup(symbol_table, name, name_token);
+	if lookup_result <> 0 then
+		instruction := _elna_tac_local_designator(lookup_result)
+	else
+		instruction := _elna_tac_global_designator(variable_expression)
+	end;
+	return instruction
+end;
+
+proc _elna_parser_string_literal();
+var
+	length: Word;
+	token_start: Word;
+	result: Word;
+	memory_size: Word;
+begin
+	memory_size := _string_literal_node_size();
+	result := _allocate(memory_size);
+
+	token_start := _elna_lexer_global_get_start();
+	length := _string_length(token_start);
+	_elna_lexer_skip_token();
+
+	_node_set_kind(result, NodeKind.string_literal);
+	_string_literal_node_set_value(result, token_start);
+	_string_literal_node_set_length(result, length);
+
+	return result
+end;
+
+proc _elna_tac_string_literal(string_literal_node: Word);
+var
+	token_start: Word;
+	length: Word;
+	offset: Word;
+	instruction: Word;
+	first_instruction: Word;
+	next_instruction: Word;
+begin
+	token_start := _string_literal_node_get_value(string_literal_node);
+	length := _string_literal_node_get_length(string_literal_node);
+	offset := _add_string(token_start);
+
+	first_instruction := _elna_tac_load_address(ElnaTacRegister.t0, "strings", 7);
+	instruction := _elna_tac_load_immediate(ElnaTacRegister.t1, offset, 0);
+	_elna_tac_instruction_set_next(first_instruction, instruction);
+	next_instruction := _elna_tac_add(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+	_elna_tac_instruction_set_next(instruction, next_instruction);
+
+	return first_instruction
+end;
+
+proc _elna_parser_simple_expression();
+var
+	current_character: Word;
+	parser_node: Word;
+	token_kind: Word;
+begin
+	parser_node := 0;
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.character then
+		parser_node := _elna_parser_character_literal()
+	elsif token_kind = ElnaLexerKind.integer then
+		parser_node := _elna_parser_integer_literal()
+	elsif token_kind = ElnaLexerKind.string then
+		parser_node := _elna_parser_string_literal()
+	elsif token_kind = ElnaLexerKind.identifier then
+		parser_node := _elna_parser_variable_expression()
+	end;
+	return parser_node
+end;
+
+proc _elna_parser_dereference_expression(simple_expression: Word);
+var
+	result: Word;
+	memory_size: Word;
+begin
+	memory_size := _dereference_expression_size();
+	result := _allocate(memory_size);
+
+	_node_set_kind(result, NodeKind.dereference_expression);
+	_dereference_expression_set_pointer(result, simple_expression);
+	_elna_lexer_skip_token();
+
+	return result
+end;
+
+proc _elna_parser_designator();
+var
+	simple_expression: Word;
+	token_kind: Word;
+begin
+	simple_expression := _elna_parser_simple_expression();
+
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.hat then
+		simple_expression := _elna_parser_dereference_expression(simple_expression)
+	elsif token_kind = ElnaLexerKind.dot then
+		simple_expression := _elna_parser_field_access_expression(simple_expression)
+	elsif token_kind = ElnaLexerKind.left_paren then
+		simple_expression := _elna_parser_call(simple_expression)
+	end;
+	return simple_expression
+end;
+
+proc _elna_tac_simple_expression(parser_node: Word, symbol_table: Word, is_address: Word);
+var
+	is_address: Word;
+	node_kind: Word;
+	instruction: Word;
+begin
+	is_address^ := 0;
+	node_kind := _node_get_kind(parser_node);
+
+	if node_kind = NodeKind.character_literal then
+		instruction := _elna_tac_character_literal(parser_node)
+	elsif node_kind = NodeKind.string_literal then
+		instruction := _elna_tac_string_literal(parser_node)
+	elsif node_kind = NodeKind.integer_literal then
+		instruction := _elna_tac_integer_literal(parser_node)
+	else
+		instruction := _elna_tac_variable_expression(parser_node, symbol_table);
+		is_address^ := 1
+	end;
+	return instruction
+end;
+
+proc _elna_parser_unary_expression();
+var
+	token_kind: Word;
+	result: Word;
+	memory_size: Word;
+	operand: Word;
+	operator: Word;
+begin
+	_elna_lexer_read_token(@token_kind);
+	operator := 0;
+
+	if token_kind = ElnaLexerKind.at then
+		operator := '@'
+	elsif token_kind = ElnaLexerKind.minus then
+		operator := '-'
+	elsif token_kind = ElnaLexerKind.not then
+		operator := '~'
+	end;
+	if operator <> 0 then
+		_elna_lexer_skip_token()
+	end;
+	result := _elna_parser_designator();
+
+	if operator <> 0 then
+		operand := result;
+		memory_size := _unary_expression_size();
+		result := _allocate(memory_size);
+
+		_node_set_kind(result, NodeKind.unary_expression);
+		_unary_expression_set_operand(result, operand);
+		_unary_expression_set_operator(result, operator)
+	end;
+
+	return result
+end;
+
+proc _elna_tac_unary_expression(parser_node: Word, symbol_table: Word);
+var
+	current_character: Word;
+	token_kind: Word;
+	expression_kind: Word;
+	operator: Word;
+	operand: Word;
+	is_address: Word;
+	first_instruction: Word;
+	instruction: Word;
+begin
+	operator := 0;
+	operand := 0;
+
+	expression_kind := _node_get_kind(parser_node);
+
+	if expression_kind = NodeKind.unary_expression then
+		operator := _unary_expression_get_operator(parser_node);
+		operand := _unary_expression_get_operand(parser_node)
+	else
+		operand := parser_node
+	end;
+
+	if operator = '@' then
+		first_instruction := _elna_tac_designator(operand, symbol_table, @is_address)
+	else
+		first_instruction := _elna_tac_designator(operand, symbol_table, @is_address);
+		if is_address then
+			instruction := _elna_tac_load_word(ElnaTacRegister.t0, ElnaTacRegister.t0, 0);
+			_elna_tac_instruction_set_next(first_instruction, instruction)
+		end
+	end;
+	if operator = '-' then
+		instruction := _elna_tac_neg(ElnaTacRegister.t0, ElnaTacRegister.t0);
+		_elna_tac_instruction_set_next(first_instruction, instruction)
+	elsif operator = '~' then
+		instruction := _elna_tac_not(ElnaTacRegister.t0, ElnaTacRegister.t0);
+		_elna_tac_instruction_set_next(first_instruction, instruction)
+	end;
+	return first_instruction
+end;
+
+proc _elna_parser_binary_expression();
+var
+	lhs_node: Word;
+	rhs_node: Word;
+	token_kind: Word;
+	memory_size: Word;
+	result: Word;
+begin
+	lhs_node := _elna_parser_unary_expression();
+	rhs_node := 0;
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.plus then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.minus then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.multiplication then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.and then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind._or then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind._xor then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.equals then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.remainder then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.division then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.less_than then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.greater_than then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.less_equal then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.not_equal then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	elsif token_kind = ElnaLexerKind.greater_equal then
+		_elna_lexer_skip_token();
+		rhs_node := _elna_parser_unary_expression()
+	end;
+	if rhs_node <> 0 then
+		memory_size := _binary_expression_size();
+		result := _allocate(memory_size);
+
+		_node_set_kind(result, NodeKind.binary_expression);
+		_binary_expression_set_lhs(result, lhs_node);
+		_binary_expression_set_rhs(result, rhs_node);
+		_binary_expression_set_operator(result, token_kind)
+	else
+		result := lhs_node
+	end;
+	return result
+end;
+
+proc _elna_tac_binary_expression(parser_node: Word, symbol_table: Word);
+var
+	token_kind: Word;
+	expression_kind: Word;
+	operand_node: Word;
+	first_instruction: Word;
+	instruction: Word;
+	current_instruction: Word;
+begin
+	expression_kind := _node_get_kind(parser_node);
+
+	if expression_kind <> NodeKind.binary_expression then
+		first_instruction := _elna_tac_unary_expression(parser_node, symbol_table)
+	else
+		token_kind := _binary_expression_get_operator(parser_node);
+
+		operand_node := _binary_expression_get_lhs(parser_node);
+		first_instruction := _elna_tac_unary_expression(operand_node, symbol_table);
+
+		(* Save the value of the left expression on the stack. *)
+		instruction := _elna_tac_store_word(ElnaTacRegister.t0, ElnaTacRegister.sp, 64);
+		_elna_tac_instruction_set_next(first_instruction, instruction);
+		current_instruction := instruction;
+
+		operand_node := _binary_expression_get_rhs(parser_node);
+		instruction := _elna_tac_unary_expression(operand_node, symbol_table);
+		_elna_tac_instruction_set_next(current_instruction, instruction);
+		current_instruction := instruction;
+
+		(* Load the left expression from the stack; *)
+		instruction := _elna_tac_load_word(ElnaTacRegister.t1, ElnaTacRegister.sp, 64);
+		_elna_tac_instruction_set_next(current_instruction, instruction);
+		current_instruction := instruction;
+
+		if token_kind = ElnaLexerKind.plus then
+			instruction := _elna_tac_add(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.minus then
+			instruction := _elna_tac_sub(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.multiplication then
+			instruction := _elna_tac_mul(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.and then
+			instruction := _elna_tac_and(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind._or then
+			instruction := _elna_tac_or(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind._xor then
+			instruction := _elna_tac_xor(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.equals then
+			instruction := _elna_tac_xor(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction);
+			current_instruction := instruction;
+
+			instruction := _elna_tac_seqz(ElnaTacRegister.t0, ElnaTacRegister.t0);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.remainder then
+			instruction := _elna_tac_rem(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.division then
+			instruction := _elna_tac_div(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.less_than then
+			instruction := _elna_tac_slt(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.greater_than then
+			instruction := _elna_tac_slt(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.less_equal then
+			instruction := _elna_tac_slt(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction);
+			current_instruction := instruction;
+
+			instruction := _elna_tac_xor_immediate(ElnaTacRegister.t0, ElnaTacRegister.t0, 1);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.not_equal then
+			instruction := _elna_tac_xor(ElnaTacRegister.t0, ElnaTacRegister.t0, ElnaTacRegister.t1);
+			_elna_tac_instruction_set_next(current_instruction, instruction);
+			current_instruction := instruction;
+
+			instruction := _elna_tac_snez(ElnaTacRegister.t0, ElnaTacRegister.t0);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		elsif token_kind = ElnaLexerKind.greater_equal then
+			instruction := _elna_tac_slt(ElnaTacRegister.t0, ElnaTacRegister.t1, ElnaTacRegister.t0);
+			_elna_tac_instruction_set_next(current_instruction, instruction);
+			current_instruction := instruction;
+
+			instruction := _elna_tac_xor_immediate(ElnaTacRegister.t0, ElnaTacRegister.t0, 1);
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		end
+	end;
+	return first_instruction
+end;
+
+(* 4 bytes node kind + 4 byte pointer to variable expression + 4 * 7 for arguments. *)
+proc _call_size();
+	return 44
+end;
+
+proc _call_get_name(this: Word);
+begin
+	this := this + 8;
+	return this^
+end;
+
+proc _call_set_name(this: Word, value: Word);
+begin
+	this := this + 8;
+	this^ := value
+end;
+
+proc _call_get_argument(this: Word, n: Word);
+begin
+	n := n * 4;
+	this := this + 8;
+	this := this + n;
+	return this^
+end;
+
+proc _call_set_argument(this: Word, n: Word, value: Word);
+begin
+	n := n * 4;
+	this := this + 8;
+	this := this + n;
+	this^ := value
+end;
+
+proc _elna_parser_call(callee: Word);
+var
+	parsed_expression: Word;
+	result: Word;
+	argument_number: Word;
+	token_kind: Word;
+	call_size: Word;
+begin
+	call_size := _call_size();
+	result := _allocate(call_size);
+	_node_set_kind(result, NodeKind.call);
+	_statement_set_next(result, 0);
+
+	argument_number := 1;
+	_call_set_name(result, callee);
+
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.right_paren then
+		_elna_lexer_skip_token();
+		goto elna_parser_call_end
+	end;
+
+	.elna_parser_call_loop;
+	parsed_expression := _elna_parser_binary_expression();
+	_call_set_argument(result, argument_number, parsed_expression);
+	argument_number := argument_number + 1;
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	if token_kind = ElnaLexerKind.comma then
+		goto elna_parser_call_loop
+	end;
+
+	.elna_parser_call_end;
+	(* Set the trailing argument to nil. *)
+	_call_set_argument(result, argument_number, 0);
+
+	return result
+end;
+
+proc _elna_tac_call(parsed_call: Word, symbol_table: Word);
+var
+	name_length: Word;
+	name: Word;
+	argument_count: Word;
+	stack_offset: Word;
+	parsed_expression: Word;
+	instruction: Word;
+	first_instruction: Word;
+	current_instruction: Word;
+begin
+	parsed_expression := _call_get_name(parsed_call);
+	name := _variable_expression_get_name(parsed_expression);
+	name_length := _variable_expression_get_length(parsed_expression);
+	argument_count := 0;
+	first_instruction := 0;
+
+	.elna_tac_call_loop;
+
+	parsed_expression := _call_get_argument(parsed_call, argument_count + 1);
+	if parsed_expression = 0 then
+		goto elna_tac_call_finalize
+	else
+		instruction := _elna_tac_binary_expression(parsed_expression, symbol_table);
+		if first_instruction = 0 then
+			first_instruction := instruction
+		else
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		end;
+		current_instruction := instruction;
+
+		(* Save the argument on the stack. *)
+		stack_offset := argument_count * 4;
+
+		instruction := _elna_tac_store_word(ElnaTacRegister.t0,
+			ElnaTacRegister.sp, 116 - stack_offset);
+		_elna_tac_instruction_set_next(current_instruction, instruction);
+		current_instruction := instruction;
+
+		argument_count := argument_count + 1;
+		goto elna_tac_call_loop
+	end;
+	.elna_tac_call_finalize;
+
+	(* Load the argument from the stack. *)
+	if argument_count <> 0 then
+		(* Decrement the argument counter. *)
+		argument_count := argument_count - 1;
+		stack_offset := argument_count * 4;
+
+		(* Calculate the stack offset: 116 - (4 * argument_counter) *)
+		instruction := _elna_tac_load_word(ElnaTacRegister.a0 + argument_count,
+			ElnaTacRegister.sp, 116 - stack_offset);
+		_elna_tac_instruction_set_next(current_instruction, instruction);
+		current_instruction := instruction;
+
+		goto elna_tac_call_finalize
+	end;
+	instruction := _elna_tac_jal(name, name_length);
+	if first_instruction = 0 then
+		first_instruction := instruction
+	else
+		_elna_tac_instruction_set_next(current_instruction, instruction)
+	end;
+	return first_instruction
+end;
+
+proc _elna_parser_goto_statement();
+var
+	token_kind: Word;
+	label_name: Word;
+	label_length: Word;
+	statement_size: Word;
+	result: Word;
+begin
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+
+	label_name := _elna_lexer_global_get_start();
+	label_length := _elna_lexer_global_get_end() - label_name;
+	_elna_lexer_skip_token();
+
+	statement_size := _goto_statement_size();
+	result := _allocate(statement_size);
+
+	_node_set_kind(result, NodeKind.goto_statement);
+	_statement_set_next(result, 0);
+	_goto_statement_set_label(result, label_name);
+	_goto_statement_set_length(result, label_length);
+
+	return result
+end;
+
+proc _elna_tac_goto_statement(parser_node: Word);
+var
+	label_name: Word;
+	label_length: Word;
+	label_with_dot: Word;
+	instruction: Word;
+begin
+	label_name := _goto_statement_get_label(parser_node);
+	label_length := _goto_statement_get_length(parser_node);
+	label_with_dot := _allocate(label_length + 1);
+
+	_store_byte('.', label_with_dot);
+	_memcpy(label_with_dot + 1, label_name, label_length);
+
+	return _elna_tac_jump(label_with_dot, label_length + 1)
+end;
+
+proc _elna_parser_label_declaration();
+var
+	token_kind: Word;
+	label_name: Word;
+	label_length: Word;
+	statement_size: Word;
+	result: Word;
+begin
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+
+	label_name := _elna_lexer_global_get_start();
+	label_length := _elna_lexer_global_get_end() - label_name;
+	_elna_lexer_skip_token();
+
+	statement_size := _label_declaration_size();
+	result := _allocate(statement_size);
+
+	_node_set_kind(result, NodeKind.label_declaration);
+	_statement_set_next(result, 0);
+	_goto_statement_set_label(result, label_name);
+	_goto_statement_set_length(result, label_length);
+
+	return result
+end;
+
+proc _elna_tac_label_declaration(parser_node: Word);
+var
+	label_name: Word;
+	label_length: Word;
+begin
+	label_name := _label_declaration_get_label(parser_node);
+	label_length := _label_declaration_get_length(parser_node);
+
+	return _elna_tac_label(label_name, label_length)
+end;
+
+proc _elna_tac_local_designator(symbol: Word);
+var
+	variable_offset: Word;
+begin
+	variable_offset := _parameter_info_get_offset(symbol);
+
+	return _elna_tac_add_immediate(ElnaTacRegister.t0, ElnaTacRegister.sp, variable_offset)
+end;
+
+proc _elna_tac_global_designator(variable_expression: Word);
+var
+	name: Word;
+	token_length: Word;
+begin
+	name := _variable_expression_get_name(variable_expression);
+	token_length := _variable_expression_get_length(variable_expression);
+
+	return _elna_tac_load_address(ElnaTacRegister.t0, name, token_length)
+end;
+
+proc _elna_tac_enumeration_value(field_access_expression: Word);
+var
+	enumeration_type: Word;
+	members: Word;
+	members_length: Word;
+	token_type: Word;
+	value_name: Word;
+	name_length: Word;
+	member_name: Word;
+	member_length: Word;
+	counter: Word;
+	symbol: Word;
+	instruction: Word;
+begin
+	symbol := _field_access_expression_get_aggregate(field_access_expression);
+	value_name := _variable_expression_get_name(symbol);
+	name_length := _variable_expression_get_length(symbol);
+
+	symbol := _symbol_table_lookup(@symbol_table_global, value_name, name_length);
+
+	enumeration_type := _type_info_get_type(symbol);
+	members := _enumeration_type_get_members(enumeration_type);
+	members_length := _enumeration_type_get_length(enumeration_type);
+
+	_elna_lexer_read_token(@token_type);
+
+	value_name := _field_access_expression_get_field(field_access_expression);
+	name_length := _field_access_expression_get_length(field_access_expression);
+	counter := 1;
+
+	instruction := 0;
+	.elna_tac_enumeration_value_members;
+	if members_length > 0 then
+		member_name := members^;
+		member_length := members + 4;
+		member_length := member_length^;
+
+		if _string_compare(value_name, name_length, member_name, member_length) = 0 then
+			members_length := members_length - 1;
+			members := members + 8;
+			counter := counter + 1;
+			goto elna_tac_enumeration_value_members
+		end;
+		instruction := _elna_tac_load_immediate(ElnaTacRegister.t0, counter, 0)
+	end;
+	return instruction
+end;
+
+proc _elna_parser_field_access_expression(aggregate: Word);
+var
+	token_kind: Word;
+	name: Word;
+	name_token: Word;
+	result: Word;
+	memory_size: Word;
+begin
+	(* Skip dot. Read the enumeration value. *)
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+
+	name := _elna_lexer_global_get_start();
+	name_token := _elna_lexer_global_get_end();
+	name_token := name_token - name;
+	_elna_lexer_skip_token();
+	memory_size := _field_access_expression_size();
+	result := _allocate(memory_size);
+
+	_node_set_kind(result, NodeKind.field_access_expression);
+	_field_access_expression_set_aggregate(result, aggregate);
+	_field_access_expression_set_field(result, name);
+	_field_access_expression_set_length(result, name_token);
+
+	return result
+end;
+
+proc _elna_tac_designator(parser_node: Word, symbol_table: Word, is_address: Word);
+var
+	name_token: Word;
+	lookup_result: Word;
+	token_kind: Word;
+	parser_node: Word;
+	node_kind: Word;
+	first_instruction: Word;
+	instruction: Word;
+begin
+	node_kind := _node_get_kind(parser_node);
+
+	if node_kind = NodeKind.dereference_expression then
+		parser_node := _dereference_expression_get_pointer(parser_node);
+		first_instruction := _elna_tac_simple_expression(parser_node, symbol_table, is_address);
+		instruction := _elna_tac_load_word(ElnaTacRegister.t0, ElnaTacRegister.t0, 0);
+		_elna_tac_instruction_set_next(first_instruction, instruction)
+	elsif node_kind = NodeKind.field_access_expression then
+		first_instruction := _elna_tac_enumeration_value(parser_node);
+		is_address^ := 0
+	elsif node_kind = NodeKind.call then
+		first_instruction := _elna_tac_call(parser_node, symbol_table);
+		instruction := _elna_tac_move(ElnaTacRegister.t0, ElnaTacRegister.a0);
+		_elna_tac_instruction_set_next(first_instruction, instruction);
+		is_address^ := 0
+	else
+		first_instruction := _elna_tac_simple_expression(parser_node, symbol_table, is_address)
+	end;
+	return first_instruction
+end;
+
+proc _elna_parser_assign_statement(assignee: Word);
+var
+	statement_size: Word;
+	result: Word;
+	token_kind: Word;
+	assignment_node: Word;
+begin
+	statement_size := _assign_statement_size();
+	result := _allocate(statement_size);
+
+	_node_set_kind(result, NodeKind.assign_statement);
+	_statement_set_next(result, 0);
+	_assign_statement_set_assignee(result, assignee);
+
+	(* Skip the assignment sign (:=) with surrounding whitespaces. *)
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	assignment_node := _elna_parser_binary_expression();
+	_assign_statement_set_assignment(result, assignment_node);
+
+	return result
+end;
+
+proc _elna_tac_assign_statement(parser_tree: Word, symbol_table: Word);
+var
+	current_expression: Word;
+	is_address: Word;
+	first_instruction: Word;
+	instruction: Word;
+	current_instruction: Word;
+begin
+	current_expression := _assign_statement_get_assignee(parser_tree);
+	first_instruction := _elna_tac_designator(current_expression, symbol_table, @is_address);
+
+	(* Save the assignee address on the stack. *)
+	current_instruction := _elna_tac_store_word(ElnaTacRegister.t0, ElnaTacRegister.sp, 60);
+	_elna_tac_instruction_set_next(first_instruction, current_instruction);
+
+	(* Compile the assignment. *)
+	current_expression := _assign_statement_get_assignment(parser_tree);
+	instruction := _elna_tac_binary_expression(current_expression, symbol_table);
+	_elna_tac_instruction_set_next(current_instruction, instruction);
+
+	current_instruction := _elna_tac_load_word(ElnaTacRegister.t1, ElnaTacRegister.sp, 60);
+	_elna_tac_instruction_set_next(instruction, current_instruction);
+
+	instruction := _elna_tac_store_word(ElnaTacRegister.t0, ElnaTacRegister.t1, 0);
+	_elna_tac_instruction_set_next(current_instruction, instruction);
+
+	return first_instruction
+end;
+
+proc _elna_parser_return_statement();
+var
+	token_kind: Word;
+	returned: Word;
+	label_length: Word;
+	statement_size: Word;
+	result: Word;
+begin
+	(* Skip "return" keyword and whitespace after it. *)
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+
+	returned := _elna_parser_binary_expression();
+
+	statement_size := _return_statement_size();
+	result := _allocate(statement_size);
+
+	_node_set_kind(result, NodeKind.return_statement);
+	_statement_set_next(result, 0);
+	_return_statement_set_returned(result, returned);
+
+	return result
+end;
+
+proc _elna_tac_return_statement(parser_node: Word, symbol_table: Word);
+var
+	return_expression: Word;
+	first_instruction: Word;
+	instruction: Word;
+begin
+	return_expression := _return_statement_get_returned(parser_node);
+	first_instruction := _elna_tac_binary_expression(return_expression, symbol_table);
+	instruction := _elna_tac_move(ElnaTacRegister.a0, ElnaTacRegister.t0);
+	_elna_tac_instruction_set_next(first_instruction, instruction);
+	return first_instruction
+end;
+
+(**
+ * Writes a label, .Ln, where n is a unique number.
+ *
+ * Parameters:
+ * counter - Label counter.
+ *)
+proc _write_label(counter: Word, length: Word);
+var
+	first_byte: Word;
+begin
+	if length = 0 then
+		_write_s(".L", 2);
+		_write_i(counter)
+	else
+		first_byte := _load_byte(counter);
+		if first_byte <> '.' then
+			_write_c('.')
+		end;
+		_write_s(counter, length)
+	end
+end;
+
+proc _elna_parser_conditional_statements();
+var
+	conditional_size: Word;
+	token_kind: Word;
+	current_node: Word;
+	result: Word;
+begin
+	conditional_size := _conditional_statements_size();
+	result := _allocate(conditional_size);
+
+	(* Skip "if", "while" or "elsif". *)
+	_elna_lexer_skip_token();
+
+	current_node := _elna_parser_binary_expression();
+	_conditional_statements_set_condition(result, current_node);
+
+	(* Skip "then" or "do". *)
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	current_node := _elna_parser_statements();
+	_conditional_statements_set_statements(result, current_node);
+
+	_conditional_statements_set_next(result, 0);
+	return result
+end;
+
+proc _elna_tac_conditional_statements(parser_node: Word, after_end_label: Word, symbol_table: Word);
+var
+	condition_label: Word;
+	current_node: Word;
+	instruction: Word;
+	current_instruction: Word;
+	first_instruction: Word;
+begin
+	(* Compile condition. *)
+	current_node := _conditional_statements_get_condition(parser_node);
+	first_instruction := _elna_tac_binary_expression(current_node, symbol_table);
+
+	(* condition_label is the label in front of the next elsif condition or end. *)
+	condition_label := label_counter;
+	label_counter := label_counter + 1;
+
+	current_instruction := _elna_tac_beqz(ElnaTacRegister.t0, condition_label, 0);
+	_elna_tac_instruction_set_next(first_instruction, current_instruction);
+
+	current_node := _conditional_statements_get_statements(parser_node);
+	instruction := _elna_tac_statements(current_node, symbol_table);
+	if instruction <> 0 then
+		_elna_tac_instruction_set_next(current_instruction, instruction);
+		current_instruction := instruction
+	end;
+
+	instruction := _elna_tac_jump(after_end_label, 0);
+	_elna_tac_instruction_set_next(current_instruction, instruction);
+
+	current_instruction := _elna_tac_label(condition_label, 0);
+	_elna_tac_instruction_set_next(instruction, current_instruction);
+
+	return first_instruction
+end;
+
+proc _elna_parser_if_statement();
+var
+	current_node: Word;
+	result: Word;
+	object_size: Word;
+	token_kind: Word;
+	previous_conditional: Word;
+	next_conditional: Word;
+begin
+	object_size := _if_statement_size();
+	result := _allocate(object_size);
+
+	_node_set_kind(result, NodeKind.if_statement);
+	_statement_set_next(result, 0);
+
+	previous_conditional := _elna_parser_conditional_statements();
+	_if_statement_set_conditionals(result, previous_conditional);
+
+	.elna_parser_if_statement_loop;
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind._elsif then
+		next_conditional := _elna_parser_conditional_statements();
+		_conditional_statements_set_next(previous_conditional, next_conditional);
+		previous_conditional = next_conditional;
+
+		goto elna_parser_if_statement_loop
+	elsif token_kind = ElnaLexerKind._else then
+		_elna_lexer_skip_token();
+
+		current_node := _elna_parser_statements();
+		_if_statement_set__else(result, current_node)
+	else
+		_if_statement_set__else(result, 0)
+	end;
+	_elna_lexer_skip_token();
+
+	return result
+end;
+
+proc _elna_parser_statement();
+var
+	token_kind: Word;
+	result : Word;
+begin
+	result := 0;
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind._goto then
+		result := _elna_parser_goto_statement()
+	elsif token_kind = ElnaLexerKind._if then
+		result := _elna_parser_if_statement()
+	elsif token_kind = ElnaLexerKind._return then
+		result := _elna_parser_return_statement()
+	elsif token_kind = ElnaLexerKind.dot then
+		result := _elna_parser_label_declaration()
+	elsif token_kind = ElnaLexerKind.identifier then
+		result := _elna_parser_designator();
+
+		if _node_get_kind(result) <> NodeKind.call then
+			result := _elna_parser_assign_statement(result)
+		end
+	end;
+	return result
+end;
+
+proc _elna_parser_statements();
+var
+	token_kind: Word;
+	previous_statement: Word;
+	next_statement: Word;
+	first_statement: Word;
+begin
+	_skip_empty_lines();
+
+	first_statement := _elna_parser_statement();
+	previous_statement := first_statement;
+	if previous_statement = 0 then
+		goto elna_parser_statements_end
+	end;
+
+	.elna_parser_statement_loop;
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.semicolon then
+		_elna_lexer_skip_token();
+		_skip_empty_lines();
+		next_statement := _elna_parser_statement();
+		_statement_set_next(previous_statement, next_statement);
+		previous_statement := next_statement;
+
+		if previous_statement <> 0 then
+			goto elna_parser_statement_loop
+		end
+	end;
+	.elna_parser_statements_end;
+	_skip_empty_lines();
+
+	return first_statement
+end;
+
+proc _elna_tac_statements(parser_node: Word, symbol_table: Word);
+var
+	current_statement: Word;
+	instruction: Word;
+	first_instruction: Word;
+	current_instruction: Word;
+begin
+	current_statement := parser_node;
+	first_instruction := 0;
+
+	.elna_tac_statements_loop;
+	if current_statement <> 0 then
+		instruction := _elna_tac_statement(current_statement, symbol_table);
+		current_statement := _statement_get_next(current_statement);
+		if instruction = 0 then
+			goto elna_tac_statements_loop
+		end;
+		if first_instruction = 0 then
+			first_instruction := instruction
+		else
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		end;
+		current_instruction := instruction;
+		goto elna_tac_statements_loop
+	end;
+	return first_instruction
+end;
+
+proc _elna_tac_if_statement(parser_node: Word, symbol_table: Word);
+var
+	current_node: Word;
+	after_end_label: Word;
+	condition_label: Word;
+	first_instruction: Word;
+	instruction: Word;
+	current_instruction: Word;
+begin
+	after_end_label := label_counter;
+	label_counter := label_counter + 1;
+
+	current_node := _if_statement_get_conditionals(parser_node);
+	first_instruction := _elna_tac_conditional_statements(current_node, after_end_label, symbol_table);
+	current_instruction := first_instruction;
+
+	.elna_tac_if_statement_loop;
+	current_node := _conditional_statements_get_next(current_node);
+	if current_node <> 0 then
+		instruction := _elna_tac_conditional_statements(current_node, after_end_label, symbol_table);
+		_elna_tac_instruction_set_next(current_instruction, instruction);
+		current_instruction := instruction;
+		goto elna_tac_if_statement_loop
+	end;
+	current_node := _if_statement_get__else(parser_node);
+
+	if current_node <> 0 then
+		instruction := _elna_tac_statements(current_node, symbol_table);
+		if instruction <> 0 then
+			_elna_tac_instruction_set_next(current_instruction, instruction);
+			current_instruction := instruction
+		end
+	end;
+	instruction := _elna_tac_label(after_end_label, 0);
+	_elna_tac_instruction_set_next(current_instruction, instruction);
+
+	return first_instruction
+end;
+
+proc _elna_tac_statement(parser_node: Word, symbol_table: Word);
+var
+	statement_kind: Word;
+	instruction: Word;
+begin
+	statement_kind := _node_get_kind(parser_node);
+
+	if statement_kind = NodeKind.goto_statement then
+		instruction := _elna_tac_goto_statement(parser_node)
+	elsif statement_kind = NodeKind.if_statement then
+		instruction := _elna_tac_if_statement(parser_node, symbol_table)
+	elsif statement_kind = NodeKind.return_statement then
+		instruction := _elna_tac_return_statement(parser_node, symbol_table)
+	elsif statement_kind = NodeKind.label_declaration then
+		instruction := _elna_tac_label_declaration(parser_node)
+	elsif statement_kind = NodeKind.call then
+		instruction := _elna_tac_call(parser_node, symbol_table)
+	elsif statement_kind = NodeKind.assign_statement then
+		instruction := _elna_tac_assign_statement(parser_node, symbol_table)
+	else
+		instruction := 0
+	end;
+	return instruction
+end;
+
+(**
+ * Writes a regster name to the standard output.
+ *
+ * Parameters:
+ * register_character - Register character.
+ * register_number - Register number.
+ *)
+proc _write_register(register_character: Word, register_number: Word);
+begin
+	_write_c(register_character);
+	_write_c(register_number + '0')
+end;
+
+proc _elna_parser_record_type_expression();
+var
+	entry: Word;
+	member_count: Word;
+	memory_start: Word;
+	field_name: Word;
+	field_length: Word;
+	field_type: Word;
+	token_kind: Word;
+	type_expression_size: Word;
+	result: Word;
+	previous_entry: Word;
+begin
+	_elna_lexer_skip_token();
+	member_count := 0;
+	memory_start := 0;
+
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind._end then
+		goto elna_parser_record_type_expression_end
+	end;
+	.elna_parser_record_type_expression_loop;
+	entry := _allocate(16);
+	member_count := member_count + 1;
+
+	field_name := _elna_lexer_global_get_start();
+	field_length := _elna_lexer_global_get_end() - field_name;
+
+	entry^ := field_name;
+	entry := entry + 4;
+
+	entry^ := field_length;
+	entry := entry + 4;
+
+	(* Skip the identifier. *)
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	field_type := _elna_parser_type_expression();
+
+	entry^ := field_type;
+	entry := entry + 4;
+
+	entry^ := 0;
+	if memory_start = 0 then
+		memory_start := entry - 12
+	else
+		previous_entry^ := entry - 12
+	end;
+	previous_entry := entry;
+
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind.semicolon then
+		_elna_lexer_skip_token();
+		_elna_lexer_read_token(@token_kind);
+		goto elna_parser_record_type_expression_loop
+	end;
+
+	.elna_parser_record_type_expression_end;
+	_elna_lexer_skip_token();
+
+	type_expression_size := _enumeration_type_expression_size();
+	result := _allocate(type_expression_size);
+
+	_node_set_kind(result, NodeKind.record_type_expression);
+	_record_type_expression_set_members(result, memory_start);
+	_record_type_expression_set_length(result, member_count);
+
+	return result
+end;
+
+proc _elna_parser_enumeration_type_expression();
+var
+	token_kind: Word;
+	enumeration_name: Word;
+	name_length: Word;
+	memory_start: Word;
+	member_count: Word;
+	result: Word;
+	type_expression_size: Word;
+	entry: Word;
+	previous_entry: Word;
+begin
+	_elna_lexer_skip_token();
+	memory_start := 0;
+	member_count := 0;
+
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind.right_paren then
+		goto elna_parser_enumeration_type_expression_end
+	end;
+	.elna_parser_enumeration_type_expression_loop;
+	entry := _allocate(12);
+	member_count := member_count + 1;
+
+	enumeration_name := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - enumeration_name;
+
+	entry^ := enumeration_name;
+	entry := entry + 4;
+
+	entry^ := name_length;
+	entry := entry + 4;
+
+	entry^ := 0;
+	if memory_start = 0 then
+		memory_start := entry - 8
+	else
+		previous_entry^ := entry - 8
+	end;
+	previous_entry := entry;
+
+	(* Skip the identifier. *)
+	_elna_lexer_skip_token();
+
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind.comma then
+		_elna_lexer_skip_token();
+		_elna_lexer_read_token(@token_kind);
+		goto elna_parser_enumeration_type_expression_loop
+	end;
+
+	.elna_parser_enumeration_type_expression_end;
+	_elna_lexer_skip_token();
+
+	type_expression_size := _enumeration_type_expression_size();
+	result := _allocate(type_expression_size);
+
+	_node_set_kind(result, NodeKind.enumeration_type_expression);
+	_enumeration_type_expression_set_members(result, memory_start);
+	_enumeration_type_expression_set_length(result, member_count);
+
+	return result
+end;
+
+(**
+ * Reads and creates enumeration type representation.
+ *
+ * record
+ *   type_kind: Word;
+ *   size: Word;
+ *   members: StringArray;
+ *   length: Word
+ * end;
+ *
+ * Returns enumeration type description.
+ *)
+proc _elna_name_type_enumeration(parser_node: Word);
+var
+	result: Word;
+	memory_start: Word;
+	member_count: Word;
+	member_array_size: Word;
+	member_array_start: Word;
+	member_array_current: Word;
+begin
+	member_array_size := _enumeration_type_size();
+	result := _allocate(member_array_size);
+
+	memory_start := _enumeration_type_expression_get_members(parser_node);
+	member_count := _enumeration_type_expression_get_length(parser_node);
+
+	(* Copy the list of enumeration members into an array of strings. *)
+	member_array_size := member_count * 8;
+	member_array_start := _allocate(member_array_size);
+	member_array_current := member_array_start;
+
+	.elna_name_type_enumeration_loop;
+	if member_count > 0 then
+		member_array_current^ := memory_start^;
+		member_array_current := member_array_current + 4;
+		memory_start := memory_start + 4;
+
+		member_array_current^ := memory_start^;
+		member_array_current := member_array_current + 4;
+		memory_start := memory_start + 4;
+
+		memory_start := memory_start^;
+		member_count := member_count - 1;
+		goto elna_name_type_enumeration_loop
+	end;
+	member_count := _enumeration_type_expression_get_length(parser_node);
+
+	_type_set_kind(result, TypeKind.enumeration);
+	_type_set_size(result, 4);
+	_enumeration_type_set_members(result, member_array_start);
+	_enumeration_type_set_length(result, member_count);
+
+	return _type_info_create(result)
+end;
+
+proc _elna_name_type_record(parser_node: Word);
+var
+	result: Word;
+	memory_start: Word;
+	member_count: Word;
+	member_array_size: Word;
+	member_array_start: Word;
+	member_array_current: Word;
+begin
+	member_array_size := _record_type_size();
+	result := _allocate(member_array_size);
+
+	memory_start := _record_type_expression_get_members(parser_node);
+	member_count := _record_type_expression_get_length(parser_node);
+
+	member_array_size := member_count * 12;
+	member_array_start := _allocate(member_array_size);
+	member_array_current := member_array_start;
+
+	.elna_name_type_record_loop;
+	if member_count > 0 then
+		member_array_current^ := memory_start^;
+		member_array_current := member_array_current + 4;
+		memory_start := memory_start + 4;
+
+		member_array_current^ := memory_start^;
+		member_array_current := member_array_current + 4;
+		memory_start := memory_start + 4;
+
+		member_array_current^ := _elna_name_type_expression(memory_start^);
+		member_array_current := member_array_current + 4;
+		memory_start := memory_start + 4;
+
+		memory_start := memory_start^;
+		member_count := member_count - 1;
+		goto elna_name_type_record_loop
+	end;
+	member_count := _record_type_expression_get_length(parser_node);
+
+	_type_set_kind(result, TypeKind._record);
+	_type_set_size(result, member_count * 4);
+	_record_type_set_members(result, member_array_start);
+	_record_type_set_length(result, member_count);
+
+	return _type_info_create(result)
+end;
+
+proc _elna_parser_named_type_expression();
+var
+	type_expression_size: Word;
+	result: Word;
+	type_name: Word;
+	name_length: Word;
+begin
+	type_expression_size := _named_type_expression_size();
+	result := _allocate(type_expression_size);
+
+	_node_set_kind(result, NodeKind.named_type_expression);
+	type_name := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - type_name;
+	_named_type_expression_set_name(result, type_name);
+	_named_type_expression_set_length(result, name_length);
+	_elna_lexer_skip_token();
+
+	return result
+end;
+
+proc _elna_parser_type_expression();
+var
+	token_kind: Word;
+	result: Word;
+begin
+	result := 0;
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.identifier then
+		result := _elna_parser_named_type_expression()
+	elsif token_kind = ElnaLexerKind.left_paren then
+		result := _elna_parser_enumeration_type_expression()
+	elsif token_kind = ElnaLexerKind._record then
+		result := _elna_parser_record_type_expression()
+	end;
+	return result
+end;
+
+proc _elna_name_type_expression(parser_node: Word);
+var
+	token_kind: Word;
+	type_name: Word;
+	name_length: Word;
+	result: Word;
+begin
+	token_kind := _node_get_kind(parser_node);
+
+	if token_kind = NodeKind.named_type_expression then
+		type_name := _named_type_expression_get_name(parser_node);
+		name_length := _named_type_expression_get_length(parser_node);
+
+		result := _symbol_table_lookup(@symbol_table_global, type_name, name_length);
+		result := _type_info_get_type(result)
+	elsif token_kind = NodeKind.enumeration_type_expression then
+		result := _elna_name_type_enumeration(parser_node)
+	elsif token_kind = NodeKind.record_type_expression then
+		result := _elna_name_type_record(parser_node)
+	end;
+
+	return result
+end;
+
+proc _type_info_get_type(this: Word);
+begin
+	this := this + 4;
+	return this^
+end;
+
+(**
+ * Parameters:
+ * parameter_index - Parameter index.
+ *)
+proc _parameter_info_create(parameter_index: Word);
+var
+	offset: Word;
+	current_word: Word;
+	result: Word;
+begin
+	result := _allocate(8);
+	current_word := result;
+	current_word^ := InfoKind.parameter_info;
+
+	current_word := current_word + 4;
+
+	(* Calculate the stack offset: 88 - (4 * parameter_counter) *)
+	offset := parameter_index * 4;
+	current_word^ := 88 - offset;
+
+	return result
+end;
+
+proc _parameter_info_get_offset(this: Word);
+begin
+	this := this + 4;
+	return this^
+end;
+
+proc _type_info_create(type_representation: Word);
+var
+	result: Word;
+	current_word: Word;
+begin
+	result := _allocate(8);
+	current_word := result;
+	current_word^ := InfoKind.type_info;
+
+	current_word := current_word + 4;
+	current_word^ := type_representation;
+
+	return result
+end;
+
+(**
+ * Parameters:
+ * temporary_index - Parameter index.
+ *)
+proc _temporary_info_create(temporary_index: Word);
+var
+	offset: Word;
+	current_word: Word;
+	result: Word;
+begin
+	result := _allocate(8);
+	current_word := result;
+	current_word^ := InfoKind.temporary_info;
+	current_word := current_word + 4;
+
+	(* Calculate the stack offset: 4 * variable_counter. *)
+	current_word^ := temporary_index * 4;
+
+	return result
+end;
+
+(**
+ * Parameters:
+ * symbol_table - Local symbol table.
+ *)
+proc _procedure_info_create(symbol_table: Word);
+var
+	current_word: Word;
+	result: Word;
+begin
+	result := _allocate(8);
+	current_word := result;
+	current_word^ := InfoKind.procedure_info;
+	current_word := current_word + 4;
+
+	current_word^ := symbol_table;
+
+	return result
+end;
+
+proc _procedure_info_get_symbol_table(this: Word);
+begin
+	this := this + 4;
+	return this^
+end;
+
+(**
+ * Parameters:
+ * parameter_index - Parameter index.
+ *)
+proc _elna_name_procedure_parameter(parser_node: Word, parameter_index: Word, symbol_table: Word);
+var
+	name_length: Word;
+	info: Word;
+	name_position: Word;
+begin
+	name_position := _declaration_get_name(parser_node);
+	name_length := _declaration_get_length(parser_node);
+
+	info := _parameter_info_create(parameter_index);
+	_symbol_table_enter(symbol_table, name_position, name_length, info)
+end;
+
+(**
+ * Parameters:
+ * variable_index - Variable index.
+ *)
+proc _elna_name_procedure_temporary(parser_node: Word, variable_index: Word, symbol_table: Word);
+var
+	name_length: Word;
+	info: Word;
+	name_position: Word;
+begin
+	name_position := _declaration_get_name(parser_node);
+	name_length := _declaration_get_length(parser_node);
+
+	info := _temporary_info_create(variable_index);
+	_symbol_table_enter(symbol_table, name_position, name_length, info)
+end;
+
+proc _elna_name_procedure_temporaries(parser_node: Word, symbol_table: Word);
+var
+	temporary_counter: Word;
+begin
+	temporary_counter := 0;
+
+	.elna_name_procedure_temporaries_loop;
+	if parser_node <> 0 then
+		_elna_name_procedure_temporary(parser_node, temporary_counter, symbol_table);
+
+		temporary_counter := temporary_counter + 1;
+		parser_node := _declaration_get_next(parser_node);
+		goto elna_name_procedure_temporaries_loop
+	end
+end;
+
+proc _elna_parser_procedure_declaration();
+var
+	name_pointer: Word;
+	name_length: Word;
+	token_kind: Word;
+	result: Word;
+	declaration_size: Word;
+	parameter_head: Word;
+begin
+	declaration_size := _procedure_declaration_size();
+	result := _allocate(declaration_size);
+
+	_node_set_kind(result, NodeKind.procedure_declaration);
+	_declaration_set_next(result, 0);
+
+	(* Skip "proc ". *)
+	_elna_lexer_skip_token();
+
+	_elna_lexer_read_token(@token_kind);
+	name_pointer := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - name_pointer;
+
+	_declaration_set_name(result, name_pointer);
+	_declaration_set_length(result, name_length);
+	(* Skip procedure name. *)
+	_elna_lexer_skip_token();
+
+	(* Skip open paren. *)
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	parameter_head := 0;
+
+	.elna_parser_procedure_declaration_parameter;
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind <> ElnaLexerKind.right_paren then
+		name_pointer := _elna_parser_variable_declaration();
+		if parameter_head = 0 then
+			parameter_head := name_pointer
+		else
+			_declaration_set_next(name_length, name_pointer)
+		end;
+		name_length := name_pointer;
+
+		_elna_lexer_read_token(@token_kind);
+
+		if token_kind = ElnaLexerKind.comma then
+			_elna_lexer_skip_token();
+			goto elna_parser_procedure_declaration_parameter
+		end
+	end;
+	(* Skip close paren. *)
+	_elna_lexer_skip_token();
+	_procedure_declaration_set_parameters(result, parameter_head);
+
+	(* Skip semicolon and newline. *)
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	parameter_head := _elna_parser_var_part();
+	_procedure_declaration_set_temporaries(result, parameter_head);
+
+	(* Skip semicolon, "begin" and newline. *)
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind._begin then
+		_elna_lexer_skip_token();
+		parameter_head := _elna_parser_statements()
+	elsif token_kind = ElnaLexerKind._return then
+		parameter_head := _elna_parser_return_statement()
+	end;
+	_procedure_declaration_set_body(result, parameter_head);
+
+	(* Skip the "end" keyword. *)
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	return result
+end;
+
+proc _elna_tac_parameters(current_parameter: Word, new_symbol_table: Word);
+var
+	name_pointer: Word;
+	name_length: Word;
+	parameter_counter: Word;
+	instruction: Word;
+	first_instruction: Word;
+	current_instruction: Word;
+	symbol_info: Word;
+begin
+	first_instruction := 0;
+	parameter_counter := 0;
+
+	.elna_tac_parameters_loop;
+	if current_parameter <> 0 then
+		name_pointer := _declaration_get_name(current_parameter);
+		name_length := _declaration_get_length(current_parameter);
+		symbol_info := _symbol_table_lookup(new_symbol_table, name_pointer, name_length);
+
+		symbol_info := _parameter_info_get_offset(symbol_info);
+
+		instruction := _elna_tac_store_word(ElnaTacRegister.a0 + parameter_counter,
+			ElnaTacRegister.sp, symbol_info);
+		if first_instruction = 0 then
+			first_instruction := instruction
+		else
+			_elna_tac_instruction_set_next(current_instruction, instruction)
+		end;
+		current_instruction := instruction;
+
+		parameter_counter := parameter_counter + 1;
+
+		current_parameter := _declaration_get_next(current_parameter);
+		goto elna_tac_parameters_loop
+	end;
+	return first_instruction
+end;
+
+proc _elna_tac_procedure_declaration(parser_node: Word);
+var
+	name_pointer: Word;
+	name_length: Word;
+	current_parameter: Word;
+	body: Word;
+	new_symbol_table: Word;
+	symbol_info: Word;
+	instruction: Word;
+	first_instruction: Word;
+	result: Word;
+	result_size: Word;
+begin
+	result_size := _elna_tac_declaration_size();
+	result := _allocate(result_size);
+
+	_elna_tac_declaration_set_next(result, 0);
+
+	name_pointer := _declaration_get_name(parser_node);
+	name_length := _declaration_get_length(parser_node);
+
+	_elna_tac_declaration_set_name(result, name_pointer);
+	_elna_tac_declaration_set_length(result, name_length);
+
+	symbol_info := _symbol_table_lookup(@symbol_table_global, name_pointer, name_length);
+	new_symbol_table := _procedure_info_get_symbol_table(symbol_info);
+
+	(* Write the prologue. *)
+	first_instruction := _elna_tac_instruction_create(ElnaTacOperator.start);
+
+	current_parameter := _procedure_declaration_get_parameters(parser_node);
+	current_parameter := _elna_tac_parameters(current_parameter, new_symbol_table);
+	_elna_tac_instruction_set_next(first_instruction, current_parameter);
+
+	body := _procedure_declaration_get_body(parser_node);
+	instruction := _elna_tac_statements(body, new_symbol_table);
+	_elna_tac_instruction_set_next(first_instruction, instruction);
+
+	(* Write the epilogue. *)
+	instruction := _elna_tac_instruction_create(ElnaTacOperator.ret);
+	_elna_tac_instruction_set_next(first_instruction, instruction);
+
+	_elna_tac_declaration_set_body(result, first_instruction);
+
+	return result
+end;
+
+proc _elna_parser_procedures();
+var
+	parser_node: Word;
+	result: Word;
+	current_declaration: Word;
+	token_kind: Word;
+begin
+	result := 0;
+
+	.elna_parser_procedures_loop;
+	_skip_empty_lines();
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind._proc then
+		parser_node := _elna_parser_procedure_declaration();
+		if result = 0 then
+			result := parser_node
+		else
+			_declaration_set_next(current_declaration, parser_node)
+		end;
+		current_declaration := parser_node;
+
+		(* Skip semicolon. *)
+		_elna_lexer_read_token(@token_kind);
+		_elna_lexer_skip_token();
+
+		goto elna_parser_procedures_loop
+	end;
+	return result
+end;
+
+proc _elna_tac_procedures(parser_node: Word);
+var
+	result: Word;
+	current_procedure: Word;
+	first_procedure: Word;
+begin
+	first_procedure := 0;
+
+	.elna_tac_procedures_loop;
+	if parser_node = 0 then
+		goto elna_tac_procedures_end
+	end;
+	result := _elna_tac_procedure_declaration(parser_node);
+	if first_procedure = 0 then
+		first_procedure := result
+	else
+		_elna_tac_declaration_set_next(current_procedure, result)
+	end;
+	current_procedure := result;
+
+	parser_node := _declaration_get_next(parser_node);
+	goto elna_tac_procedures_loop;
+
+	.elna_tac_procedures_end;
+	return first_procedure
+end;
+
+(**
+ * Skips comments.
+ *)
+proc _skip_empty_lines();
+var
+	token_kind: Word;
+begin
+	.skip_empty_lines_rerun;
+
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.comment then
+		_elna_lexer_skip_token();
+		goto skip_empty_lines_rerun
+	end
+end;
+
+proc _elna_parser_type_declaration();
+var
+	token_kind: Word;
+	type_name: Word;
+	name_length: Word;
+	parser_node: Word;
+	result: Word;
+	declaration_size: Word;
+begin
+	_elna_lexer_read_token(@token_kind);
+	type_name := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - type_name;
+
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	parser_node := _elna_parser_type_expression();
+	declaration_size := _type_declaration_size();
+	result := _allocate(declaration_size);
+
+	_node_set_kind(result, NodeKind.type_declaration);
+	_declaration_set_next(result, 0);
+	_declaration_set_name(result, type_name);
+	_declaration_set_length(result, name_length);
+	_type_declaration_set__type(result, parser_node);
+
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+
+	return result
+end;
+
+proc _elna_name_type_declaration(parser_node: Word);
+var
+	type_name: Word;
+	name_length: Word;
+	type_info: Word;
+begin
+	type_name := _declaration_get_name(parser_node);
+	name_length := _declaration_get_length(parser_node);
+
+	parser_node := _type_declaration_get__type(parser_node);
+	type_info := _elna_name_type_expression(parser_node);
+
+	_symbol_table_enter(@symbol_table_global, type_name, name_length, type_info)
+end;
+
+proc _elna_type_type_declaration(parser_node: Word);
+begin
+end;
+
+proc _elna_parser_type_part();
+var
+	token_kind: Word;
+	parser_node: Word;
+	result: Word;
+	current_declaration: Word;
+begin
+	result := 0;
+	_skip_empty_lines();
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind <> ElnaLexerKind._type then
+		goto elna_parser_type_part_end
+	end;
+	_elna_lexer_skip_token();
+
+	.elna_parser_type_part_loop;
+	_skip_empty_lines();
+
+	_elna_lexer_read_token(@token_kind);
+	if token_kind = ElnaLexerKind.identifier then
+		parser_node := _elna_parser_type_declaration();
+
+		if result = 0 then
+			result := parser_node
+		else
+			_declaration_set_next(current_declaration, parser_node)
+		end;
+		current_declaration := parser_node;
+		goto elna_parser_type_part_loop
+	end;
+
+	.elna_parser_type_part_end;
+	return result
+end;
+
+proc _elna_parser_variable_declaration();
+var
+	token_kind: Word;
+	name: Word;
+	name_length: Word;
+	variable_type: Word;
+	result: Word;
+	declaration_size: Word;
+begin
+	_elna_lexer_read_token(@token_kind);
+
+	name := _elna_lexer_global_get_start();
+	name_length := _elna_lexer_global_get_end() - name;
+
+	(* Skip the variable name and colon with the type. *)
+	_elna_lexer_skip_token();
+	_elna_lexer_read_token(@token_kind);
+	_elna_lexer_skip_token();
+	variable_type := _elna_parser_type_expression();
+
+	declaration_size := _variable_declaration_size();
+	result := _allocate(declaration_size);
+
+	_node_set_kind(result, NodeKind.variable_declaration);
+	_declaration_set_next(result, 0);
+	_declaration_set_name(result, name);
+	_declaration_set_length(result, name_length);
+	_variable_declaration_set__type(result, variable_type);
+
+	return result
+end;
+
+proc _elna_tac_variable_declaration(parser_tree: Word);
+var
+	name: Word;
+	name_length: Word;
+	variable_type: Word;
+	result: Word;
+	result_size: Word;
+begin
+	result_size := _elna_tac_declaration_size();
+	result := _allocate(result_size);
+
+	_elna_tac_declaration_set_next(result, 0);
+
+	name := _declaration_get_name(parser_tree);
+	name_length := _declaration_get_length(parser_tree);
+	variable_type := _variable_declaration_get__type(parser_tree);
+
+	_elna_tac_declaration_set_name(result, name);
+	_elna_tac_declaration_set_length(result, name_length);
+
+	name := _named_type_expression_get_name(variable_type);
+	name_length := _named_type_expression_get_length(variable_type);
+
+	if _string_compare("Array", 5, name, name_length) then
+		(* Else we assume this is a zeroed 4096 bytes big array. *)
+		_elna_tac_declaration_set_body(result, 4096)
+	else
+		_elna_tac_declaration_set_body(result, 4)
+	end;
+	return result
+end;
+
+proc _elna_tac_type_field(name_pointer: Word, name_length: Word, field_pointer: Word, field_offset: Word);
+var
+	result_size: Word;
+	first_result: Word;
+	second_result: Word;
+	new_name: Word;
+	new_length: Word;
+	field_length: Word;
+	instruction: Word;
+	name_target: Word;
+	next_instruction: Word;
+begin
+	result_size := _elna_tac_declaration_size();
+	field_length := field_pointer + 4;
+	field_length := field_length^;
+	new_length := field_length + name_length;
+	new_length := new_length + 5;
+
+	first_result := _allocate(result_size);
+	_elna_tac_declaration_set_next(first_result, 0);
+
+	new_name := _allocate(new_length);
+
+	name_target := new_name;
+	_memcpy(name_target, name_pointer, name_length);
+	name_target := name_target + name_length;
+	_memcpy(name_target, "_get_", 5);
+	name_target := name_target + 5;
+	_memcpy(name_target, field_pointer^, field_length);
+
+	_elna_tac_declaration_set_name(first_result, new_name);
+	_elna_tac_declaration_set_length(first_result, new_length);
+
+	instruction := _elna_tac_add_immediate(ElnaTacRegister.a0, ElnaTacRegister.a0, field_offset, 0);
+	next_instruction := _elna_tac_load_word(ElnaTacRegister.a0, ElnaTacRegister.a0, 0);
+	_elna_tac_instruction_set_next(instruction, next_instruction);
+	_elna_tac_declaration_set_body(first_result, instruction);
+
+	second_result := _allocate(result_size);
+	_elna_tac_declaration_set_next(second_result, 0);
+
+	new_name := _allocate(new_length);
+
+	name_target := new_name;
+	_memcpy(name_target, name_pointer, name_length);
+	name_target := name_target + name_length;
+	_memcpy(name_target, "_set_", 5);
+	name_target := name_target + 5;
+	_memcpy(name_target, field_pointer^, field_length);
+
+	_elna_tac_declaration_set_name(second_result, new_name);
+	_elna_tac_declaration_set_length(second_result, new_length);
+
+	instruction := _elna_tac_add_immediate(ElnaTacRegister.a0, ElnaTacRegister.a0, field_offset, 0);
+	next_instruction := _elna_tac_store_word(ElnaTacRegister.a1, ElnaTacRegister.a0, 0);
+	_elna_tac_instruction_set_next(instruction, next_instruction);
+	_elna_tac_declaration_set_body(second_result, instruction);
+
+	_elna_tac_declaration_set_next(first_result, second_result);
+
+	return first_result
+end;
+
+proc _elna_tac_type_record(name_pointer: Word, name_length: Word, type_representation: Word, current_result: Word);
+var
+	result_size: Word;
+	first_result: Word;
+	result: Word;
+	type_size: Word;
+	new_name: Word;
+	new_length: Word;
+	instruction: Word;
+	field_count: Word;
+	field_offset: Word;
+	field_pointer: Word;
+begin
+	result_size := _elna_tac_declaration_size();
+	first_result := _allocate(result_size);
+	result := 0;
+
+	(* Debug. Error stream output.
+	_syscall(2, name_pointer, name_length, 0, 0, 0, 64); *)
+
+	type_size := _type_get_size(type_representation);
+	new_length := name_length + 5;
+	new_name := _allocate(new_length);
+
+	_memcpy(new_name, name_pointer, name_length);
+	_memcpy(new_name + name_length, "_size", 5);
+
+	_elna_tac_declaration_set_name(first_result, new_name);
+	_elna_tac_declaration_set_length(first_result, new_length);
+
+	instruction := _elna_tac_load_immediate(ElnaTacRegister.a0, type_size, 0);
+	_elna_tac_declaration_set_body(first_result, instruction);
+
+	field_count := _record_type_get_length(type_representation);
+	field_pointer := _record_type_get_members(type_representation);
+	field_offset := 0;
+	current_result^ := first_result;
+
+	.elna_tac_type_record_fields;
+	if field_count > 0 then
+		result := _elna_tac_type_field(name_pointer, name_length, field_pointer, field_offset);
+
+		_elna_tac_declaration_set_next(current_result^, result);
+		current_result^ := _elna_tac_declaration_get_next(result);
+
+		field_offset := field_offset + 4;
+		field_count := field_count - 1;
+		field_pointer := field_pointer + 12;
+		goto elna_tac_type_record_fields
+	end;
+
+	return first_result
+end;
+
+proc _elna_tac_type_part(parser_node: Word);
+var
+	name_pointer: Word;
+	name_length: Word;
+	result: Word;
+	first_result: Word;
+	symbol: Word;
+	info_type: Word;
+	type_kind: Word;
+	current_result: Word;
+	out_result: Word;
+begin
+	first_result := 0;
+
+	.elna_tac_type_part_loop;
+	if parser_node = 0 then
+		goto elna_tac_type_part_end
+	end;
+
+	name_pointer := _declaration_get_name(parser_node);
+	name_length := _declaration_get_length(parser_node);
+	symbol := _symbol_table_lookup(@symbol_table_global, name_pointer, name_length);
+
+	info_type := _type_info_get_type(symbol);
+	type_kind := _type_get_kind(info_type);
+
+	if type_kind = TypeKind._record then
+		result := _elna_tac_type_record(name_pointer, name_length, info_type, @out_result)
+	else
+		result := 0;
+		out_result := 0
+	end;
+	if first_result = 0 then
+		first_result := result;
+		current_result := out_result
+	elsif result <> 0 then
+		_elna_tac_declaration_set_next(current_result, result);
+		current_result := out_result
+	end;
+	parser_node := _declaration_get_next(parser_node);
+	goto elna_tac_type_part_loop;
+
+	.elna_tac_type_part_end;
+	return first_result
+end;
+
+proc _elna_parser_var_part();
+var
+	result: Word;
+	token_kind: Word;
+	variable_node: Word;
+	current_declaration: Word;
+begin
+	result := 0;
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind <> ElnaLexerKind._var then
+		goto elna_parser_var_part_end
+	end;
+	(* Skip "var". *)
+	_elna_lexer_skip_token();
+
+	.elna_parser_var_part_loop;
+	_skip_empty_lines();
+	_elna_lexer_read_token(@token_kind);
+
+	if token_kind = ElnaLexerKind.identifier then
+		variable_node := _elna_parser_variable_declaration();
+
+		(* Skip semicolon. *)
+		_elna_lexer_read_token(@token_kind);
+		_elna_lexer_skip_token();
+
+		if result = 0 then
+			result := variable_node
+		else
+			_declaration_set_next(current_declaration, variable_node)
+		end;
+		current_declaration := variable_node;
+		goto elna_parser_var_part_loop
+	end;
+
+	.elna_parser_var_part_end;
+	return result
+end;
+
+proc _elna_tac_var_part(parser_node: Word);
+var
+	node: Word;
+	current_variable: Word;
+	first_variable: Word;
+begin
+	first_variable := 0;
+	if parser_node = 0 then
+		goto elna_tac_var_part_end
+	end;
+
+	.elna_tac_var_part_loop;
+	node := _elna_tac_variable_declaration(parser_node);
+	if first_variable = 0 then
+		first_variable := node
+	else
+		_elna_tac_declaration_set_next(current_variable, node)
+	end;
+	current_variable := node;
+
+	parser_node := _declaration_get_next(parser_node);
+	if parser_node <> 0 then
+		goto elna_tac_var_part_loop
+	end;
+
+	.elna_tac_var_part_end;
+	return first_variable
+end;
+
+proc _elna_parser_module_declaration();
+var
+	parser_node: Word;
+	declaration_size: Word;
+	result: Word;
+begin
+	declaration_size := _module_declaration_size();
+	result := _allocate(declaration_size);
+
+	_node_set_kind(result, NodeKind.module_declaration);
+
+	parser_node := _elna_parser_type_part();
+	_module_declaration_set_types(result, parser_node);
+
+	parser_node := _elna_parser_var_part();
+	_module_declaration_set_globals(result, parser_node);
+
+	parser_node := _elna_parser_procedures();
+	_module_declaration_set_procedures(result, parser_node);
+
+	return result
+end;
+
+(**
+ * Process the source code and print the generated code.
+ *)
+proc _elna_tac_module_declaration(parser_node: Word);
+var
+	data_part: Word;
+	code_part: Word;
+	type_part: Word;
+	current_declaration: Word;
+	next_declaration: Word;
+begin
+	type_part := _module_declaration_get_types(parser_node);
+	type_part := _elna_tac_type_part(type_part);
+
+	data_part := _module_declaration_get_globals(parser_node);
+	data_part := _elna_tac_var_part(data_part);
+
+	code_part := _module_declaration_get_procedures(parser_node);
+	code_part := _elna_tac_procedures(code_part);
+
+	current_declaration := code_part;
+
+	.elna_tac_module_declaration_types;
+	next_declaration := _elna_tac_declaration_get_next(current_declaration);
+	if next_declaration <> 0 then
+		current_declaration := next_declaration;
+
+		goto elna_tac_module_declaration_types
+	end;
+	_elna_tac_declaration_set_next(current_declaration, type_part);
+
+	return _elna_tac_module_create(data_part, code_part)
+end;
+
+proc _elna_name_procedure_declaration(parser_node: Word);
+var
+	name_pointer: Word;
+	name_length: Word;
+	new_symbol_table: Word;
+	parameter_counter: Word;
+	symbol_info: Word;
+	current_parameter: Word;
+begin
+	new_symbol_table := _symbol_table_create();
+	symbol_info := _procedure_info_create(new_symbol_table);
+
+	name_pointer := _declaration_get_name(parser_node);
+	name_length := _declaration_get_length(parser_node);
+
+	current_parameter := _procedure_declaration_get_parameters(parser_node);
+	parameter_counter := 0;
+	.elna_name_procedure_declaration_parameter;
+	if current_parameter <> 0 then
+		_elna_name_procedure_parameter(current_parameter, parameter_counter, new_symbol_table);
+		parameter_counter := parameter_counter + 1;
+
+		current_parameter := _declaration_get_next(current_parameter);
+		goto elna_name_procedure_declaration_parameter
+	end;
+	current_parameter := _procedure_declaration_get_temporaries(parser_node);
+	_elna_name_procedure_temporaries(current_parameter, new_symbol_table);
+
+	_symbol_table_enter(@symbol_table_global, name_pointer, name_length, symbol_info)
+end;
+
+proc _elna_type_procedure_declaration(parser_node: Word);
+begin
+end;
+
+proc _elna_name_module_declaration(parser_node: Word);
+var
+	current_part: Word;
+	result: Word;
+begin
+	current_part := _module_declaration_get_types(parser_node);
+	.elna_name_module_declaration_type;
+	if current_part <> 0 then
+		_elna_name_type_declaration(current_part);
+		current_part := _declaration_get_next(current_part);
+
+		goto elna_name_module_declaration_type
+	end;
+
+	current_part := _module_declaration_get_procedures(parser_node);
+	.elna_name_module_declaration_procedure;
+	if current_part <> 0 then
+		_elna_name_procedure_declaration(current_part);
+		current_part := _declaration_get_next(current_part);
+
+		goto elna_name_module_declaration_procedure
+	end
+end;
+
+proc _elna_type_module_declaration(parser_node: Word);
+var
+	current_part: Word;
+begin
+	current_part := _module_declaration_get_types(parser_node);
+	.elna_type_module_declaration_type;
+	if current_part <> 0 then
+		_elna_type_type_declaration(current_part);
+		current_part := _declaration_get_next(current_part);
+
+		goto elna_type_module_declaration_type
+	end;
+
+	current_part := _module_declaration_get_procedures(parser_node);
+	.elna_type_module_declaration_procedure;
+	if current_part <> 0 then
+		_elna_type_procedure_declaration(current_part);
+		current_part := _declaration_get_next(current_part);
+
+		goto elna_type_module_declaration_procedure
+	end
+end;
+
+proc _compile();
+var
+	parser_node: Word;
+	tac: Word;
+begin
+	parser_node := _elna_parser_module_declaration();
+	_elna_name_module_declaration(parser_node);
+	_elna_type_module_declaration(parser_node);
+	tac := _elna_tac_module_declaration(parser_node);
+	_elna_writer_module(tac)
+end;
+
+(**
+ * Terminates the program. a0 contains the return code.
+ *
+ * Parameters:
+ * a0 - Status code.
+ *)
+proc _exit(status: Word);
+begin
+	_syscall(status, 0, 0, 0, 0, 0, 93)
+end;
+
+(**
+ * Looks for a symbol in the given symbol table.
+ *
+ * Parameters:
+ * symbol_table - Symbol table.
+ * symbol_name - Symbol name pointer.
+ * name_length - Symbol name length.
+ *
+ * Returns the symbol pointer or 0 in a0.
+ *)
+proc _symbol_table_lookup(symbol_table: Word, symbol_name: Word, name_length: Word);
+var
+	result: Word;
+	symbol_table_length: Word;
+	current_name: Word;
+	current_length: Word;
+begin
+	result := 0;
+
+	(* The first word in the symbol table is its length, get it. *)
+	symbol_table_length := symbol_table^;
+
+	(* Go to the first symbol position. *)
+	symbol_table := symbol_table + 4;
+
+	.symbol_table_lookup_loop;
+	if symbol_table_length = 0 then
+		goto symbol_table_lookup_end
+	end;
+
+	(* Symbol name pointer and length. *)
+	current_name := symbol_table^;
+	current_length := symbol_table + 4;
+	current_length := current_length^;
+
+	(* If lengths don't match, exit and return nil. *)
+	if name_length <> current_length then
+		goto symbol_table_lookup_repeat
+	end;
+	(* If names don't match, exit and return nil. *)
+	if _memcmp(symbol_name, current_name, name_length) then
+		goto symbol_table_lookup_repeat
+	end;
+	(* Otherwise, the symbol is found. *)
+	result := symbol_table + 8;
+	result := result^;
+	goto symbol_table_lookup_end;
+
+	.symbol_table_lookup_repeat;
+	symbol_table := symbol_table + 12;
+	symbol_table_length := symbol_table_length - 1;
+	goto symbol_table_lookup_loop;
+
+	.symbol_table_lookup_end;
+	return result
+end;
+
+(**
+ * Create a new local symbol table in the symbol memory region after the last
+ * known symbol table.
+ *)
+proc _symbol_table_create();
+var
+	new_symbol_table: Word;
+	table_length: Word;
+	current_table: Word;
+begin
+	new_symbol_table := symbol_table_store;
+
+	.symbol_table_create_loop;
+	table_length := new_symbol_table^;
+
+	if table_length <> 0 then
+		table_length := table_length * 12;
+		table_length := table_length + 4;
+		new_symbol_table := new_symbol_table + table_length;
+		goto symbol_table_create_loop
+	end;
+
+	return new_symbol_table
+end;
+
+(**
+ * Inserts a symbol into the table.
+ *
+ * Parameters:
+ * symbol_table - Symbol table.
+ * symbol_name - Symbol name pointer.
+ * name_length - Symbol name length.
+ * symbol - Symbol pointer.
+ *)
+proc _symbol_table_enter(symbol_table: Word, symbol_name: Word, name_length: Word, symbol: Word);
+var
+	table_length: Word;
+	symbol_pointer: Word;
+begin
+	(* The first word in the symbol table is its length, get it. *)
+	table_length := symbol_table^;
+
+	(* Calculate the offset for the new symbol. *)
+	symbol_pointer := table_length * 12;
+	symbol_pointer := symbol_pointer + 4;
+	symbol_pointer := symbol_table + symbol_pointer;
+
+	symbol_pointer^ := symbol_name;
+	symbol_pointer := symbol_pointer + 4;
+	symbol_pointer^ := name_length;
+	symbol_pointer := symbol_pointer + 4;
+	symbol_pointer^ := symbol;
+
+	(* Increment the symbol table length. *)
+	table_length := table_length + 1;
+	symbol_table^ := table_length
+end;
+
+proc _symbol_table_build();
+var
+	current_info: Word;
+	current_type: Word;
+begin
+	(* Set the table length to 0. *)
+	symbol_table_global := 0;
+
+	current_type := _allocate(8);
+	_type_set_kind(current_type, TypeKind.primitive);
+	_type_set_size(current_type, 4);
+
+	(* Enter built-in symbols. *)
+	current_info := _type_info_create(current_type);
+	_symbol_table_enter(@symbol_table_global, "Word", 4, current_info);
+
+	current_info := _type_info_create(current_type);
+	_symbol_table_enter(@symbol_table_global, "Array", 5, current_info)
+end;
+
+(**
+ * Assigns some value to at array index.
+ *
+ * Parameters:
+ * array - Array pointer.
+ * index - Index (word offset into the array).
+ * data - Data to assign.
+ *)
+proc _assign_at(array: Word, index: Word, data: Word);
+var
+	target: Word;
+begin
+	target := index - 1;
+	target := target * 4;
+	target := array + target;
+
+	target^ := data
+end;
+
+proc _get_at(array: Word, index: Word);
+var
+	target: Word;
+begin
+	target := index - 1;
+	target := target * 4;
+	target := array + target;
+
+	return target^
+end;
+
+(**
+ * Initializes the array with character classes.
+ *)
+proc _elna_lexer_classifications();
+var
+	code: Word;
+begin
+	_assign_at(@classification, 1, ElnaLexerClass.eof);
+	_assign_at(@classification, 2, ElnaLexerClass.invalid);
+	_assign_at(@classification, 3, ElnaLexerClass.invalid);
+	_assign_at(@classification, 4, ElnaLexerClass.invalid);
+	_assign_at(@classification, 5, ElnaLexerClass.invalid);
+	_assign_at(@classification, 6, ElnaLexerClass.invalid);
+	_assign_at(@classification, 7, ElnaLexerClass.invalid);
+	_assign_at(@classification, 8, ElnaLexerClass.invalid);
+	_assign_at(@classification, 9, ElnaLexerClass.invalid);
+	_assign_at(@classification, 10, ElnaLexerClass.space);
+	_assign_at(@classification, 11, ElnaLexerClass.space);
+	_assign_at(@classification, 12, ElnaLexerClass.invalid);
+	_assign_at(@classification, 13, ElnaLexerClass.invalid);
+	_assign_at(@classification, 14, ElnaLexerClass.space);
+	_assign_at(@classification, 15, ElnaLexerClass.invalid);
+	_assign_at(@classification, 16, ElnaLexerClass.invalid);
+	_assign_at(@classification, 17, ElnaLexerClass.invalid);
+	_assign_at(@classification, 18, ElnaLexerClass.invalid);
+	_assign_at(@classification, 19, ElnaLexerClass.invalid);
+	_assign_at(@classification, 20, ElnaLexerClass.invalid);
+	_assign_at(@classification, 21, ElnaLexerClass.invalid);
+	_assign_at(@classification, 22, ElnaLexerClass.invalid);
+	_assign_at(@classification, 23, ElnaLexerClass.invalid);
+	_assign_at(@classification, 24, ElnaLexerClass.invalid);
+	_assign_at(@classification, 25, ElnaLexerClass.invalid);
+	_assign_at(@classification, 26, ElnaLexerClass.invalid);
+	_assign_at(@classification, 27, ElnaLexerClass.invalid);
+	_assign_at(@classification, 28, ElnaLexerClass.invalid);
+	_assign_at(@classification, 29, ElnaLexerClass.invalid);
+	_assign_at(@classification, 30, ElnaLexerClass.invalid);
+	_assign_at(@classification, 31, ElnaLexerClass.invalid);
+	_assign_at(@classification, 32, ElnaLexerClass.invalid);
+	_assign_at(@classification, 33, ElnaLexerClass.space);
+	_assign_at(@classification, 34, ElnaLexerClass.single);
+	_assign_at(@classification, 35, ElnaLexerClass.double_quote);
+	_assign_at(@classification, 36, ElnaLexerClass.other);
+	_assign_at(@classification, 37, ElnaLexerClass.other);
+	_assign_at(@classification, 38, ElnaLexerClass.single);
+	_assign_at(@classification, 39, ElnaLexerClass.single);
+	_assign_at(@classification, 40, ElnaLexerClass.single_quote);
+	_assign_at(@classification, 41, ElnaLexerClass.left_paren);
+	_assign_at(@classification, 42, ElnaLexerClass.right_paren);
+	_assign_at(@classification, 43, ElnaLexerClass.asterisk);
+	_assign_at(@classification, 44, ElnaLexerClass.single);
+	_assign_at(@classification, 45, ElnaLexerClass.single);
+	_assign_at(@classification, 46, ElnaLexerClass.minus);
+	_assign_at(@classification, 47, ElnaLexerClass.dot);
+	_assign_at(@classification, 48, ElnaLexerClass.single);
+	_assign_at(@classification, 49, ElnaLexerClass.zero);
+	_assign_at(@classification, 50, ElnaLexerClass.digit);
+	_assign_at(@classification, 51, ElnaLexerClass.digit);
+	_assign_at(@classification, 52, ElnaLexerClass.digit);
+	_assign_at(@classification, 53, ElnaLexerClass.digit);
+	_assign_at(@classification, 54, ElnaLexerClass.digit);
+	_assign_at(@classification, 55, ElnaLexerClass.digit);
+	_assign_at(@classification, 56, ElnaLexerClass.digit);
+	_assign_at(@classification, 57, ElnaLexerClass.digit);
+	_assign_at(@classification, 58, ElnaLexerClass.digit);
+	_assign_at(@classification, 59, ElnaLexerClass.colon);
+	_assign_at(@classification, 60, ElnaLexerClass.single);
+	_assign_at(@classification, 61, ElnaLexerClass.less);
+	_assign_at(@classification, 62, ElnaLexerClass.equals);
+	_assign_at(@classification, 63, ElnaLexerClass.greater);
+	_assign_at(@classification, 64, ElnaLexerClass.other);
+	_assign_at(@classification, 65, ElnaLexerClass.single);
+	_assign_at(@classification, 66, ElnaLexerClass.alpha);
+	_assign_at(@classification, 67, ElnaLexerClass.alpha);
+	_assign_at(@classification, 68, ElnaLexerClass.alpha);
+	_assign_at(@classification, 69, ElnaLexerClass.alpha);
+	_assign_at(@classification, 70, ElnaLexerClass.alpha);
+	_assign_at(@classification, 71, ElnaLexerClass.alpha);
+	_assign_at(@classification, 72, ElnaLexerClass.alpha);
+	_assign_at(@classification, 73, ElnaLexerClass.alpha);
+	_assign_at(@classification, 74, ElnaLexerClass.alpha);
+	_assign_at(@classification, 75, ElnaLexerClass.alpha);
+	_assign_at(@classification, 76, ElnaLexerClass.alpha);
+	_assign_at(@classification, 77, ElnaLexerClass.alpha);
+	_assign_at(@classification, 78, ElnaLexerClass.alpha);
+	_assign_at(@classification, 79, ElnaLexerClass.alpha);
+	_assign_at(@classification, 80, ElnaLexerClass.alpha);
+	_assign_at(@classification, 81, ElnaLexerClass.alpha);
+	_assign_at(@classification, 82, ElnaLexerClass.alpha);
+	_assign_at(@classification, 83, ElnaLexerClass.alpha);
+	_assign_at(@classification, 84, ElnaLexerClass.alpha);
+	_assign_at(@classification, 85, ElnaLexerClass.alpha);
+	_assign_at(@classification, 86, ElnaLexerClass.alpha);
+	_assign_at(@classification, 87, ElnaLexerClass.alpha);
+	_assign_at(@classification, 88, ElnaLexerClass.alpha);
+	_assign_at(@classification, 89, ElnaLexerClass.alpha);
+	_assign_at(@classification, 90, ElnaLexerClass.alpha);
+	_assign_at(@classification, 91, ElnaLexerClass.alpha);
+	_assign_at(@classification, 92, ElnaLexerClass.single);
+	_assign_at(@classification, 93, ElnaLexerClass.backslash);
+	_assign_at(@classification, 94, ElnaLexerClass.single);
+	_assign_at(@classification, 95, ElnaLexerClass.single);
+	_assign_at(@classification, 96, ElnaLexerClass.alpha);
+	_assign_at(@classification, 97, ElnaLexerClass.other);
+	_assign_at(@classification, 98, ElnaLexerClass.hex);
+	_assign_at(@classification, 99, ElnaLexerClass.hex);
+	_assign_at(@classification, 100, ElnaLexerClass.hex);
+	_assign_at(@classification, 101, ElnaLexerClass.hex);
+	_assign_at(@classification, 102, ElnaLexerClass.hex);
+	_assign_at(@classification, 103, ElnaLexerClass.hex);
+	_assign_at(@classification, 104, ElnaLexerClass.alpha);
+	_assign_at(@classification, 105, ElnaLexerClass.alpha);
+	_assign_at(@classification, 106, ElnaLexerClass.alpha);
+	_assign_at(@classification, 107, ElnaLexerClass.alpha);
+	_assign_at(@classification, 108, ElnaLexerClass.alpha);
+	_assign_at(@classification, 109, ElnaLexerClass.alpha);
+	_assign_at(@classification, 110, ElnaLexerClass.alpha);
+	_assign_at(@classification, 111, ElnaLexerClass.alpha);
+	_assign_at(@classification, 112, ElnaLexerClass.alpha);
+	_assign_at(@classification, 113, ElnaLexerClass.alpha);
+	_assign_at(@classification, 114, ElnaLexerClass.alpha);
+	_assign_at(@classification, 115, ElnaLexerClass.alpha);
+	_assign_at(@classification, 116, ElnaLexerClass.alpha);
+	_assign_at(@classification, 117, ElnaLexerClass.alpha);
+	_assign_at(@classification, 118, ElnaLexerClass.alpha);
+	_assign_at(@classification, 119, ElnaLexerClass.alpha);
+	_assign_at(@classification, 120, ElnaLexerClass.alpha);
+	_assign_at(@classification, 121, ElnaLexerClass.x);
+	_assign_at(@classification, 122, ElnaLexerClass.alpha);
+	_assign_at(@classification, 123, ElnaLexerClass.alpha);
+	_assign_at(@classification, 124, ElnaLexerClass.other);
+	_assign_at(@classification, 125, ElnaLexerClass.single);
+	_assign_at(@classification, 126, ElnaLexerClass.other);
+	_assign_at(@classification, 127, ElnaLexerClass.single);
+	_assign_at(@classification, 128, ElnaLexerClass.invalid);
+
+	code := 129;
+
+	(* Set the remaining 129 - 256 bytes to transitionClassOther. *)
+	.create_classification_loop;
+	_assign_at(@classification, code, ElnaLexerClass.other);
+	code := code + 1;
+
+	if code < 257 then
+		goto create_classification_loop
+	end
+end;
+
+proc _elna_lexer_get_transition(current_state: Word, character_class: Word);
+var
+	transition_table: Word;
+	row_position: Word;
+	column_position: Word;
+	target: Word;
+begin
+	(* Each state is 8 bytes long (2 words: action and next state).
+	There are 22 character classes, so a transition row 8 * 22 = 176 bytes long. *)
+	row_position := current_state - 1;
+	row_position := row_position * 176;
+
+	column_position := character_class - 1;
+	column_position := column_position * 8;
+
+	target := _elna_lexer_get_transition_table();
+	target := target + row_position;
+
+	return target + column_position
+end;
+
+(**
+ * Parameters:
+ * current_state - First index into transitions table.
+ * character_class - Second index into transitions table.
+ * action - Action to assign.
+ * next_state - Next state to assign.
+ *)
+proc _elna_lexer_set_transition(current_state: Word, character_class: Word, action: Word, next_state: Word);
+var
+	transition: Word;
+begin
+	transition := _elna_lexer_get_transition(current_state, character_class);
+
+	_elna_lexer_transition_set_action(transition, action);
+	_elna_lexer_transition_set_state(transition, next_state)
+end;
+
+(* Sets same action and state transition for all character classes in one transition row. *)
+
+(**
+ * Parameters:
+ * current_state - Current state (Transition state enumeration).
+ * default_action - Default action (Callback).
+ * next_state - Next state (Transition state enumeration).
+ *)
+proc _elna_lexer_default_transition(current_state: Word, default_action: Word, next_state: Word);
+begin
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.invalid, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.digit, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.alpha, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.space, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.colon, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.equals, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.left_paren, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.right_paren, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.asterisk, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.backslash, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.single, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.hex, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.zero, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.x, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.eof, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.dot, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.minus, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.single_quote, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.double_quote, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.greater, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.less, default_action, next_state);
+	_elna_lexer_set_transition(current_state, ElnaLexerClass.other, default_action, next_state)
+end;
+
+(**
+ * The transition table describes transitions from one state to another, given
+ * a symbol (character class).
+ *
+ * The table has m rows and n columns, where m is the amount of states and n is
+ * the amount of classes. So given the current state and a classified character
+ * the table can be used to look up the next state.
+ *)
+proc _elna_lexer_transitions();
+begin
+	(* Start state. *)
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.digit, ElnaLexerAction.accumulate, ElnaLexerState.decimal);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.alpha, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.space, ElnaLexerAction.skip, ElnaLexerState.start);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.colon, ElnaLexerAction.accumulate, ElnaLexerState.colon);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.equals, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.left_paren, ElnaLexerAction.accumulate, ElnaLexerState.left_paren);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.right_paren, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.asterisk, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.backslash, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.single, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.hex, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.zero, ElnaLexerAction.accumulate, ElnaLexerState.leading_zero);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.x, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.eof, ElnaLexerAction.eof, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.dot, ElnaLexerAction.single, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.minus, ElnaLexerAction.accumulate, ElnaLexerState.minus);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.single_quote, ElnaLexerAction.accumulate, ElnaLexerState.character);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.double_quote, ElnaLexerAction.accumulate, ElnaLexerState.string);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.greater, ElnaLexerAction.accumulate, ElnaLexerState.greater);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.less, ElnaLexerAction.accumulate, ElnaLexerState.less);
+	_elna_lexer_set_transition(ElnaLexerState.start, ElnaLexerClass.other, ElnaLexerAction.none, ElnaLexerState.finish);
+
+	(* Colon state. *)
+	_elna_lexer_default_transition(ElnaLexerState.colon, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.colon, ElnaLexerClass.equals, ElnaLexerAction.composite, ElnaLexerState.finish);
+
+	(* Identifier state. *)
+	_elna_lexer_default_transition(ElnaLexerState.identifier, ElnaLexerAction.key_id, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.digit, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.alpha, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.hex, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.zero, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+	_elna_lexer_set_transition(ElnaLexerState.identifier, ElnaLexerClass.x, ElnaLexerAction.accumulate, ElnaLexerState.identifier);
+
+	(* Decimal state. *)
+	_elna_lexer_default_transition(ElnaLexerState.decimal, ElnaLexerAction.integer, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.digit, ElnaLexerAction.accumulate, ElnaLexerState.decimal);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.alpha, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.hex, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.zero, ElnaLexerAction.accumulate, ElnaLexerState.decimal);
+	_elna_lexer_set_transition(ElnaLexerState.decimal, ElnaLexerClass.x, ElnaLexerAction.none, ElnaLexerState.finish);
+
+	(* Leading zero. *)
+	_elna_lexer_default_transition(ElnaLexerState.leading_zero, ElnaLexerAction.integer, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.digit, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.alpha, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.hex, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.zero, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.leading_zero, ElnaLexerClass.x, ElnaLexerAction.none, ElnaLexerState.dot);
+
+	(* Greater state. *)
+	_elna_lexer_default_transition(ElnaLexerState.greater, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.greater, ElnaLexerClass.equals, ElnaLexerAction.composite, ElnaLexerState.finish);
+
+	(* Minus state. *)
+	_elna_lexer_default_transition(ElnaLexerState.minus, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.minus, ElnaLexerClass.greater, ElnaLexerAction.composite, ElnaLexerState.finish);
+
+	(* Left paren state. *)
+	_elna_lexer_default_transition(ElnaLexerState.left_paren, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.left_paren, ElnaLexerClass.asterisk, ElnaLexerAction.accumulate, ElnaLexerState.comment);
+
+	(* Less state. *)
+	_elna_lexer_default_transition(ElnaLexerState.less, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.less, ElnaLexerClass.equals, ElnaLexerAction.composite, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.less, ElnaLexerClass.greater, ElnaLexerAction.composite, ElnaLexerState.finish);
+
+	(* Hexadecimal after 0x. *)
+	_elna_lexer_default_transition(ElnaLexerState.dot, ElnaLexerAction.finalize, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.dot, ElnaLexerClass.dot, ElnaLexerAction.composite, ElnaLexerState.finish);
+
+	(* Comment. *)
+	_elna_lexer_default_transition(ElnaLexerState.comment, ElnaLexerAction.accumulate, ElnaLexerState.comment);
+	_elna_lexer_set_transition(ElnaLexerState.comment, ElnaLexerClass.asterisk, ElnaLexerAction.accumulate, ElnaLexerState.closing_comment);
+	_elna_lexer_set_transition(ElnaLexerState.comment, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
+
+	(* Closing comment. *)
+	_elna_lexer_default_transition(ElnaLexerState.closing_comment, ElnaLexerAction.accumulate, ElnaLexerState.comment);
+	_elna_lexer_set_transition(ElnaLexerState.closing_comment, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.closing_comment, ElnaLexerClass.right_paren, ElnaLexerAction.delimited, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.closing_comment, ElnaLexerClass.asterisk, ElnaLexerAction.accumulate, ElnaLexerState.closing_comment);
+	_elna_lexer_set_transition(ElnaLexerState.closing_comment, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
+
+	(* Character. *)
+	_elna_lexer_default_transition(ElnaLexerState.character, ElnaLexerAction.accumulate, ElnaLexerState.character);
+	_elna_lexer_set_transition(ElnaLexerState.character, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.character, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.character, ElnaLexerClass.single_quote, ElnaLexerAction.delimited, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.character, ElnaLexerClass.backslash, ElnaLexerAction.accumulate, ElnaLexerState.character_escape);
+
+	(* Escape sequence in a character. *)
+	_elna_lexer_default_transition(ElnaLexerState.character_escape, ElnaLexerAction.accumulate, ElnaLexerState.character);
+	_elna_lexer_set_transition(ElnaLexerState.character_escape, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.character_escape, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
+
+	(* String. *)
+	_elna_lexer_default_transition(ElnaLexerState.string, ElnaLexerAction.accumulate, ElnaLexerState.string);
+	_elna_lexer_set_transition(ElnaLexerState.string, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.string, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.string, ElnaLexerClass.double_quote, ElnaLexerAction.delimited, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.string, ElnaLexerClass.backslash, ElnaLexerAction.accumulate, ElnaLexerState.string_escape);
+
+	(* Escape sequence in a string. *)
+	_elna_lexer_default_transition(ElnaLexerState.string_escape, ElnaLexerAction.accumulate, ElnaLexerState.string);
+	_elna_lexer_set_transition(ElnaLexerState.string_escape, ElnaLexerClass.invalid, ElnaLexerAction.none, ElnaLexerState.finish);
+	_elna_lexer_set_transition(ElnaLexerState.string_escape, ElnaLexerClass.eof, ElnaLexerAction.none, ElnaLexerState.finish)
+end;
+
+(**
+ * Transition table is saved after character classification table.
+ * Each character entry is 1 word long and there are 256 characters.
+ * 1024 = 256 * 4
+ *)
+proc _elna_lexer_get_transition_table();
+	return @classification + 1024
+end;
+
+(**
+ * Lexer state is saved after the transition tables.
+ * Each transition table entry is 8 bytes long. The table has 16 rows (transition states)
+ * and 22 columns (character classes), so 2992 = 8 * 17 * 22.
+ *)
+proc _elna_lexer_global_state();
+var
+	result: Word;
+begin
+	result := _elna_lexer_get_transition_table();
+	return  result + 2992
+end;
+
+(**
+ * Gets pointer to the token start.
+ *)
+proc _elna_lexer_global_get_start();
+var
+	target: Word;
+begin
+	target := _elna_lexer_global_state() + 4;
+	return target^
+end;
+
+(**
+ * Sets pointer to the token start.
+ *)
+proc _elna_lexer_global_set_start(new_start: Word);
+var
+	target: Word;
+begin
+	target := _elna_lexer_global_state() + 4;
+	target^ := new_start
+end;
+
+(**
+ * Gets pointer to the token end.
+ *)
+proc _elna_lexer_global_get_end();
+var
+	target: Word;
+begin
+	target := _elna_lexer_global_state() + 8;
+	return target^
+end;
+
+(**
+ * Sets pointer to the token end.
+ *)
+proc _elna_lexer_global_set_end(new_start: Word);
+var
+	target: Word;
+begin
+	target := _elna_lexer_global_state() + 8;
+	target^ := new_start
+end;
+
+proc _elna_lexer_transition_get_action(this: Word);
+	return this^
+end;
+
+proc _elna_lexer_transition_set_action(this: Word, value: Word);
+begin
+	this^ := value
+end;
+
+proc _elna_lexer_transition_get_state(this: Word);
+begin
+	this := this + 4;
+	return this^
+end;
+
+proc _elna_lexer_transition_set_state(this: Word, value: Word);
+begin
+	this := this + 4;
+	this^ := value
+end;
+
+(**
+ * Resets the lexer state for reading the next token.
+ *)
+proc _elna_lexer_reset();
+var
+	state: Word;
+begin
+	(* Transition start state is 1. *)
+	state := _elna_lexer_global_state();
+	state^ := ElnaLexerState.start;
+
+	state := _elna_lexer_global_get_start();
+	_elna_lexer_global_set_end(state)
+end;
+
+(**
+ * One time lexer initialization.
+ *)
+proc _elna_lexer_initialize(code_pointer: Word);
+begin
+	_elna_lexer_classifications();
+	_elna_lexer_transitions();
+
+	_elna_lexer_global_set_start(code_pointer);
+	_elna_lexer_global_set_end(code_pointer)
+end;
+
+proc _elna_lexer_next_transition();
+var
+	current_character: Word;
+	character_class: Word;
+	current_state: Word;
+begin
+	current_character := _elna_lexer_global_get_end();
+	current_character := _load_byte(current_character);
+
+	character_class := _get_at(@classification, current_character + 1);
+
+	current_state := _elna_lexer_global_state();
+	current_state := current_state^;
+
+	return _elna_lexer_get_transition(current_state, character_class)
+end;
+
+proc _string_compare(lhs_pointer: Word, lhs_length: Word, rhs_pointer: Word, rhs_length: Word);
+var
+	result: Word;
+begin
+	result := 0;
+
+	if lhs_length = rhs_length then
+		result := _memcmp(lhs_pointer, rhs_pointer, lhs_length);
+		result := result = 0
+	end;
+	return result
+end;
+
+proc _elna_lexer_classify_keyword(position_start: Word, position_end: Word);
+var
+	result: Word;
+	token_length: Word;
+begin
+	result := ElnaLexerKind.identifier;
+	token_length := position_end - position_start;
+
+	if _string_compare(position_start, token_length, "const", 5) then
+		result := ElnaLexerKind._const
+	elsif _string_compare(position_start, token_length, "var", 3) then
+		result := ElnaLexerKind._var
+	elsif _string_compare(position_start, token_length, "proc", 4) then
+		result := ElnaLexerKind._proc
+	elsif _string_compare(position_start, token_length, "type", 4) then
+		result := ElnaLexerKind._type
+	elsif _string_compare(position_start, token_length, "begin", 5) then
+		result := ElnaLexerKind._begin
+	elsif _string_compare(position_start, token_length, "end", 3) then
+		result := ElnaLexerKind._end
+	elsif _string_compare(position_start, token_length, "return", 6) then
+		result := ElnaLexerKind._return
+	elsif _string_compare(position_start, token_length, "goto", 4) then
+		result := ElnaLexerKind._goto
+	elsif _string_compare(position_start, token_length, "if", 2) then
+		result := ElnaLexerKind._if
+	elsif _string_compare(position_start, token_length, "while", 5) then
+		result := ElnaLexerKind._while
+	elsif _string_compare(position_start, token_length, "then", 4) then
+		result := ElnaLexerKind._then
+	elsif _string_compare(position_start, token_length, "else", 4) then
+		result := ElnaLexerKind._else
+	elsif _string_compare(position_start, token_length, "elsif", 5) then
+		result := ElnaLexerKind._elsif
+	elsif _string_compare(position_start, token_length, "record", 6) then
+		result := ElnaLexerKind._record
+	elsif _string_compare(position_start, token_length, "or", 2) then
+		result := ElnaLexerKind._or
+	elsif _string_compare(position_start, token_length, "xor", 2) then
+		result := ElnaLexerKind._xor
+	end;
+	return result
+end;
+
+proc _elna_lexer_classify_finalize(start_position: Word);
+var
+	character: Word;
+	result: Word;
+begin
+	result := 0;
+	character := _load_byte(start_position);
+
+	if character = ':' then
+		result := ElnaLexerKind.colon
+	elsif character = '.' then
+		result := ElnaLexerKind.dot
+	elsif character = '(' then
+		result := ElnaLexerKind.left_paren
+	elsif character = '-' then
+		result := ElnaLexerKind.minus
+	elsif character = '<' then
+		result := ElnaLexerKind.less_than
+	elsif character = '>' then
+		result := ElnaLexerKind.greater_than
+	end;
+	return result
+end;
+
+proc _elna_lexer_classify_single(start_position: Word);
+var
+	character: Word;
+	result: Word;
+begin
+	result := 0;
+	character := _load_byte(start_position);
+
+	if character = ';' then
+		result := ElnaLexerKind.semicolon
+	elsif character = ',' then
+		result := ElnaLexerKind.comma
+	elsif character = ')' then
+		result := ElnaLexerKind.right_paren
+	elsif character = '@' then
+		result := ElnaLexerKind.at
+	elsif character = '~' then
+		result := ElnaLexerKind.not
+	elsif character = '&' then
+		result := ElnaLexerKind.and
+	elsif character = '+' then
+		result := ElnaLexerKind.plus
+	elsif character = '*' then
+		result := ElnaLexerKind.multiplication
+	elsif character = '=' then
+		result := ElnaLexerKind.equals
+	elsif character = '%' then
+		result := ElnaLexerKind.remainder
+	elsif character = '/' then
+		result := ElnaLexerKind.division
+	elsif character = '.' then
+		result := ElnaLexerKind.dot
+	elsif character = '^' then
+		result := ElnaLexerKind.hat
+	end;
+	return result
+end;
+
+proc _elna_lexer_classify_composite(start_position: Word, one_before_last: Word);
+var
+	first_character: Word;
+	last_character: Word;
+	result: Word;
+begin
+	first_character := _load_byte(start_position);
+	last_character := _load_byte(one_before_last);
+
+	if first_character = ':' then
+		result := ElnaLexerKind.assignment
+	elsif first_character = '<' then
+		if last_character = '=' then
+			result := ElnaLexerKind.less_equal
+		elsif last_character = '>' then
+			result := ElnaLexerKind.not_equal
+		end
+	elsif first_character = '>' then
+		if last_character = '=' then
+			result := ElnaLexerKind.greater_equal
+		end
+	end;
+
+	return result
+end;
+
+proc _elna_lexer_classify_delimited(start_position: Word, end_position: Word);
+var
+	token_length: Word;
+	delimiter: Word;
+	result: Word;
+begin
+	token_length := end_position - start_position;
+	delimiter := _load_byte(start_position);
+
+	if delimiter = '(' then
+		result := ElnaLexerKind.comment
+	elsif delimiter = '\'' then
+		result := ElnaLexerKind.character
+	elsif delimiter = '"' then
+		result := ElnaLexerKind.string
+	end;
+	return result
+end;
+
+proc _elna_lexer_classify_integer(start_position: Word, end_position: Word);
+	return ElnaLexerKind.integer
+end;
+
+proc _elna_lexer_execute_action(action_to_perform: Word, kind: Word);
+var
+	position_start: Word;
+	position_end: Word;
+	intermediate: Word;
+begin
+	position_start := _elna_lexer_global_get_start();
+	position_end := _elna_lexer_global_get_end();
+
+	if action_to_perform = ElnaLexerAction.none then
+	elsif action_to_perform = ElnaLexerAction.accumulate then
+		_elna_lexer_global_set_end(position_end + 1)
+	elsif action_to_perform = ElnaLexerAction.skip then
+		_elna_lexer_global_set_start(position_start + 1);
+		_elna_lexer_global_set_end(position_end + 1)
+	elsif action_to_perform = ElnaLexerAction.single then
+		_elna_lexer_global_set_end(position_end + 1);
+
+		intermediate := _elna_lexer_classify_single(position_start);
+		kind^ := intermediate
+	elsif action_to_perform = ElnaLexerAction.eof then
+		intermediate := ElnaLexerKind.eof;
+		kind^ := intermediate
+	elsif action_to_perform = ElnaLexerAction.finalize then
+		intermediate := _elna_lexer_classify_finalize(position_start);
+		kind^ := intermediate
+	elsif action_to_perform = ElnaLexerAction.composite then
+		_elna_lexer_global_set_end(position_end + 1);
+
+		intermediate := _elna_lexer_classify_composite(position_start, position_end);
+		kind^ := intermediate
+	elsif action_to_perform = ElnaLexerAction.key_id then
+		intermediate := _elna_lexer_classify_keyword(position_start, position_end);
+		kind^ := intermediate
+	elsif action_to_perform = ElnaLexerAction.integer then
+		intermediate := _elna_lexer_classify_integer(position_start, position_end);
+		kind^ := intermediate
+	elsif action_to_perform = ElnaLexerAction.delimited then
+		_elna_lexer_global_set_end(position_end + 1);
+
+		intermediate := _elna_lexer_classify_delimited(position_start, position_end + 1);
+		kind^ := intermediate
+	end
+end;
+
+proc _elna_lexer_execute_transition(kind: Word);
+var
+	next_transition: Word;
+	next_state: Word;
+	global_state: Word;
+	action_to_perform: Word;
+begin
+	next_transition := _elna_lexer_next_transition();
+	next_state := _elna_lexer_transition_get_state(next_transition);
+	action_to_perform := _elna_lexer_transition_get_action(next_transition);
+
+	global_state := _elna_lexer_global_state();
+
+	global_state^ := next_state;
+	_elna_lexer_execute_action(action_to_perform, kind);
+
+	return next_state
+end;
+
+proc _elna_lexer_advance_token(kind: Word);
+var
+	result_state: Word;
+begin
+	result_state := _elna_lexer_execute_transition(kind);
+	if result_state <> ElnaLexerState.finish then
+		_elna_lexer_advance_token(kind)
+	end
+end;
+
+(**
+ * Reads the next token and writes its type into the address in the kind parameter.
+ *)
+proc _elna_lexer_read_token(kind: Word);
+begin
+	_elna_lexer_reset();
+	_elna_lexer_advance_token(kind)
+end;
+
+(**
+ * Advances the token stream past the last read token.
+ *)
+proc _elna_lexer_skip_token();
+var
+	old_end: Word;
+begin
+	old_end := _elna_lexer_global_get_end();
+	_elna_lexer_global_set_start(old_end)
+end;
+
+proc _initialize_global_state();
+begin
+	compiler_strings_position := @compiler_strings;
+	memory_free_pointer := _mmap(4194304);
+	source_code := _mmap(495616);
+	symbol_table_store := _mmap(495616)
+end;
+
+(*
+ * Entry point.
+ *)
+proc _start();
+var
+	last_read: Word;
+	offset: Word;
+begin
+	_initialize_global_state();
+	_elna_lexer_initialize(source_code);
+	_symbol_table_build();
+
+	(* Read the source from the standard input. *)
+	offset := source_code;
+
+	.start_read;
+	(* Second argument is buffer size. Modifying update the source_code definition. *)
+	last_read := _read_file(offset, 409600);
+	if last_read > 0 then
+		offset := offset + last_read;
+		goto start_read
+	end;
+	_compile();
+
+	_exit(0)
+end;