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Handle immediate values in RTL

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This commit is contained in:
Eugen Wissner
2025-11-13 20:40:17 +01:00
parent c24373927c
commit cc3acdfd12
1 changed files with 170 additions and 188 deletions
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358
boot/stage16/cl.elna
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@@ -831,41 +831,33 @@ var
operand_length: Word;
operand_type: Word;
next_instruction: Word;
instruction_size: Word;
begin
instruction_size := elna_rtl_instruction_size();
operand_value := _elna_tac_instruction_get_operand_value(tac_instruction, operand_number);
operand_length := _elna_tac_instruction_get_operand_length(tac_instruction, operand_number);
operand_type := _elna_tac_instruction_get_operand_type(tac_instruction, operand_number);
result := malloc(instruction_size);
if operand_type = ElnaTacOperand.immediate then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.load_immediate);
result := elna_rtl_instruction_create(ElnaRtlOperator.load_immediate);
elna_rtl_instruction_set_operand(result, 1, ElnaRtlOperand.register, into, 0);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.immediate, operand_value, operand_length);
ElnaInstructionList_set_next(result, 0)
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.immediate, operand_value, operand_length)
elsif operand_type = ElnaTacOperand.stack then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.load_word);
result := elna_rtl_instruction_create(ElnaRtlOperator.load_word);
elna_rtl_instruction_set_operand(result, 1, ElnaRtlOperand.register, into, 0);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.offset, ElnaRtlRegister.sp, operand_value);
ElnaInstructionList_set_next(result, 0)
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.offset, ElnaRtlRegister.sp, operand_value)
elsif operand_type = ElnaTacOperand.symbol then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.load_address);
result := elna_rtl_instruction_create(ElnaRtlOperator.load_address);
elna_rtl_instruction_set_operand(result, 1, ElnaRtlOperand.register, into, 0);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.symbol, operand_value, operand_length);
next_instruction := malloc(instruction_size);
elna_rtl_instruction_set_kind(next_instruction, ElnaRtlOperator.load_word);
next_instruction := elna_rtl_instruction_create(ElnaRtlOperator.load_word);
elna_rtl_instruction_set_operand(next_instruction, 1, ElnaRtlOperand.register, into, 0);
elna_rtl_instruction_set_operand(next_instruction, 2, ElnaRtlOperand.offset, into, 0);
ElnaInstructionList_set_next(next_instruction, 0);
ElnaInstructionList_set_next(result, next_instruction)
elsif operand_type = ElnaTacOperand.register then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.move);
result := elna_rtl_instruction_create(ElnaRtlOperator.move);
elna_rtl_instruction_set_operand(result, 1, ElnaRtlOperand.register, into, 0);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.register, operand_value, 0);
ElnaInstructionList_set_next(result, 0)
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.register, operand_value, 0)
end;
return result
@@ -882,15 +874,12 @@ begin
operand_length := _elna_tac_instruction_get_operand_length(tac_instruction, operand_number);
operand_type := _elna_tac_instruction_get_operand_type(tac_instruction, operand_number);
result := malloc(elna_rtl_instruction_size());
ElnaInstructionList_set_next(result, 0);
if operand_type = ElnaTacOperand.stack then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.add_immediate);
result := elna_rtl_instruction_create(ElnaRtlOperator.add_immediate);
elna_rtl_instruction_set_operand(result, 1, ElnaRtlOperand.register, into, 0);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.offset, ElnaRtlRegister.sp, operand_value);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.offset, ElnaRtlRegister.sp, operand_value)
elsif operand_type = ElnaTacOperand.symbol then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.load_address);
result := elna_rtl_instruction_create(ElnaRtlOperator.load_address);
elna_rtl_instruction_set_operand(result, 1, ElnaRtlOperand.register, into, 0);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.symbol, operand_value, operand_length)
end;
@@ -920,13 +909,18 @@ begin
return lhs
end;
proc elna_rtl_binary_arithmetic(tac_instruction: Word, binary_result: Word, next_instruction: Word);
proc elna_rtl_binary_arithmetic(tac_instruction: Word, next_instruction: Word, operation: Word);
var
lhs: Word;
binary_result: Word;
begin
lhs := elna_rtl_binary_operands(tac_instruction, next_instruction);
binary_result := elna_rtl_instruction_create(operation);
elna_rtl_copy_operand(tac_instruction, 1, binary_result);
elna_rtl_instruction_set_operand(binary_result, 2, ElnaRtlOperand.register, ElnaRtlRegister.t2, 0);
elna_rtl_instruction_set_operand(binary_result, 3, ElnaRtlOperand.register, ElnaRtlRegister.t3, 0);
elna_rtl_instruction_set_kind(binary_result, operation);
ElnaInstructionList_set_next(next_instruction^, binary_result);
next_instruction^ := binary_result;
@@ -955,6 +949,19 @@ begin
return operands
end;
proc elna_rtl_copy_operand(tac_instruction: Word, number: Word, rtl_instruction: Word);
var
operand_length: Word;
operand_type: Word;
operand_value: Word;
begin
operand_type := _elna_tac_instruction_get_operand_type(tac_instruction, number);
operand_value := _elna_tac_instruction_get_operand_value(tac_instruction, number);
operand_length := _elna_tac_instruction_get_operand_length(tac_instruction, number);
elna_rtl_instruction_set_operand(rtl_instruction, number, operand_type, operand_value, operand_length)
end;
proc elna_rtl_instruction(tac_instruction: Word, next_instruction: Word);
var
result: Word;
@@ -976,22 +983,24 @@ begin
if operand_type = ElnaTacOperand.stack then
operand_value := _elna_tac_instruction_get_operand_value(tac_instruction, 2);
result := elna_rtl_instruction_create(ElnaRtlOperator.add);
elna_rtl_copy_operand(tac_instruction, 1, result);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.register, ElnaRtlRegister.sp, 0);
elna_rtl_instruction_set_operand(result, 3, ElnaRtlOperand.immediate, operand_value, 0);
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.add)
elna_rtl_instruction_set_operand(result, 3, ElnaRtlOperand.immediate, operand_value, 0)
elsif operand_type = ElnaTacOperand.symbol then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.load_address)
result := elna_rtl_instruction_create(ElnaRtlOperator.load_address);
elna_rtl_copy_operand(tac_instruction, 1, result);
elna_rtl_copy_operand(tac_instruction, 2, result)
elsif operand_type = ElnaTacOperand.register then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.move);
else
(* Debug. Error stream output.
_syscall(2, name_pointer, name_length, 0, 0, 0, 64); *)
printf("# here %i\n\0", operand_type);
fflush(0);
end;
result := elna_rtl_instruction_create(ElnaRtlOperator.move);
elna_rtl_copy_operand(tac_instruction, 1, result);
elna_rtl_copy_operand(tac_instruction, 2, result)
end
elsif instruction_kind = ElnaTacOperator.add then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator.add)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator.add)
elsif instruction_kind = ElnaTacOperator.load_word then
operand_type := _elna_tac_instruction_get_operand_type(tac_instruction, 2);
@@ -1007,33 +1016,37 @@ begin
end;
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.load_word)
elsif instruction_kind = ElnaTacOperator.store_word then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.store_word)
operands := elna_rtl_load_operand_value(tac_instruction, 1, ElnaRtlRegister.t0);
next_instruction^ := result;
result := operands;
operands := ElnaInstructionList_get_next(result);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator.store_word);
elna_rtl_instruction_set_operand(next_instruction^, 1, ElnaRtlOperand.register, ElnaRtlRegister.t0, 0);
if operands = 0 then
ElnaInstructionList_set_next(result, next_instruction^)
else
ElnaInstructionList_set_next(operands, next_instruction^)
end
elsif instruction_kind = ElnaTacOperator.jal then
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.jal)
elsif instruction_kind = ElnaTacOperator.sub then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator.sub)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator.sub)
elsif instruction_kind = ElnaTacOperator.mul then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator.mul)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator.mul)
elsif instruction_kind = ElnaTacOperator.div then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator.div)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator.div)
elsif instruction_kind = ElnaTacOperator.rem then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator.rem)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator.rem)
elsif instruction_kind = ElnaTacOperator._xor then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator._xor)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator._xor)
elsif instruction_kind = ElnaTacOperator._or then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator._or)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator._or)
elsif instruction_kind = ElnaTacOperator.and then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator.and)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator.and)
elsif instruction_kind = ElnaTacOperator.slt then
result := elna_rtl_binary_arithmetic(tac_instruction, result, next_instruction);
elna_rtl_instruction_set_kind(next_instruction^, ElnaRtlOperator.slt)
result := elna_rtl_binary_arithmetic(tac_instruction, next_instruction, ElnaRtlOperator.slt)
elsif instruction_kind = ElnaTacOperator.sgt then
operands := elna_rtl_binary_operands(tac_instruction, next_instruction);
elna_rtl_instruction_set_operand(result, 2, ElnaRtlOperand.register, ElnaRtlRegister.t3, 0);
@@ -1100,9 +1113,27 @@ begin
elna_rtl_instruction_set_kind(result, ElnaRtlOperator.label)
elsif instruction_kind = ElnaTacOperator.assign then
free(result);
operand_type := _elna_tac_instruction_get_operand_type(tac_instruction, 1);
operand_value := _elna_tac_instruction_get_operand_value(tac_instruction, 1);
result := elna_rtl_load_operand_value(tac_instruction, 2, operand_value);
next_instruction^ := ElnaInstructionList_get_next(result)
if operand_type = ElnaTacOperand.register then
result := elna_rtl_load_operand_value(tac_instruction, 2, operand_value);
next_instruction^ := ElnaInstructionList_get_next(result)
elsif operand_type = ElnaTacOperand.stack then
operands := elna_rtl_load_operand_value(tac_instruction, 2, ElnaRtlRegister.t4);
result := operands;
operands := ElnaInstructionList_get_next(result);
next_instruction^ := elna_rtl_instruction_create(ElnaRtlOperator.store_word);
_elna_tac_instruction_set_operand(next_instruction^, 1, ElnaRtlOperand.register, ElnaRtlRegister.t4, 0);
_elna_tac_instruction_set_operand(next_instruction^, 2, ElnaRtlOperand.offset, ElnaRtlRegister.sp, operand_value);
if operands = 0 then
ElnaInstructionList_set_next(result, next_instruction^)
else
ElnaInstructionList_set_next(operands, next_instruction^)
end
end
end;
if next_instruction^ = 0 then
next_instruction^ := result;
@@ -1122,18 +1153,6 @@ begin
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.get_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_jump(source_symbol: Word, symbol_length: Word);
var
result: Word;
@@ -1145,43 +1164,6 @@ begin
return result
end;
proc _elna_tac_add(destination: Word, lhs: Word, rhs_type: 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, rhs_type, 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_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;
@@ -1206,30 +1188,6 @@ begin
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;
@@ -1810,6 +1768,7 @@ var
is_address: Word;
first_instruction: Word;
instruction: Word;
temp: Word;
begin
operator := 0;
operand := 0;
@@ -1836,17 +1795,11 @@ begin
first_instruction := elna_instruction_list_concatenate(first_instruction, instruction)
else
current_character := operand_type^;
first_instruction := _elna_tac_designator(operand, symbol_table, @is_address, operand_type, operand_value, operand_length);
operand := operand_type^;
if operand_type^ = ElnaTacOperand.immediate then
first_instruction := _elna_tac_instruction_create(ElnaTacOperator.assign);
_elna_tac_instruction_set_operand(first_instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.t0, 0);
_elna_tac_instruction_set_operand(first_instruction, 2, operand_type^, operand_value^, operand_length^);
operand_type^ := ElnaTacOperand.register;
operand_value^ := ElnaRtlRegister.t0;
operand_length^ := 0
elsif first_instruction = 0 then
if first_instruction = 0 then
first_instruction := _elna_tac_instruction_create(ElnaTacOperator.get_address);
_elna_tac_instruction_set_operand(first_instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.t0, 0);
_elna_tac_instruction_set_operand(first_instruction, 2, operand_type^, operand_value^, operand_length^);
@@ -1855,7 +1808,6 @@ begin
operand_value^ := ElnaRtlRegister.t0;
operand_length^ := 0
end;
if is_address then
instruction := _elna_tac_instruction_create(ElnaTacOperator.load_word);
_elna_tac_instruction_set_operand(instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.t0, 0);
@@ -1869,10 +1821,14 @@ begin
end
end;
if operator = '-' then
instruction := _elna_tac_neg(ElnaRtlRegister.t0, ElnaRtlRegister.t0);
instruction := _elna_tac_instruction_create(ElnaTacOperator.neg);
_elna_tac_instruction_set_operand(instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.t0, 0);
_elna_tac_instruction_set_operand(instruction, 2, ElnaTacOperand.register, ElnaRtlRegister.t0, 0);
elna_instruction_list_concatenate(first_instruction, instruction)
elsif operator = '~' then
instruction := _elna_tac_not(ElnaRtlRegister.t0, ElnaRtlRegister.t0);
instruction := _elna_tac_instruction_create(ElnaTacOperator.not);
_elna_tac_instruction_set_operand(instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.t0, 0);
_elna_tac_instruction_set_operand(instruction, 2, ElnaTacOperand.register, ElnaRtlRegister.t0, 0);
elna_instruction_list_concatenate(first_instruction, instruction)
end;
return first_instruction
@@ -1971,11 +1927,15 @@ begin
first_instruction := _elna_tac_unary_expression(operand_node, symbol_table, @lhs_type, @lhs_value, @lhs_length);
(* Save the value of the left expression on the stack. *)
instruction := _elna_tac_instruction_create(ElnaTacOperator.store_word);
_elna_tac_instruction_set_operand(instruction, 1, lhs_type, lhs_value, lhs_length);
_elna_tac_instruction_set_operand(instruction, 2, ElnaTacOperand.offset, ElnaRtlRegister.sp, 72);
instruction := _elna_tac_instruction_create(ElnaTacOperator.assign);
_elna_tac_instruction_set_operand(instruction, 1, ElnaTacOperand.stack, 72, 0);
_elna_tac_instruction_set_operand(instruction, 2, lhs_type, lhs_value, lhs_length);
elna_instruction_list_concatenate(first_instruction, instruction);
if first_instruction = 0 then
first_instruction := instruction
else
elna_instruction_list_concatenate(first_instruction, instruction)
end;
current_instruction := instruction;
operand_node := _binary_expression_get_rhs(parser_node);
@@ -1983,13 +1943,22 @@ begin
lhs_value := 0;
lhs_length := 0;
instruction := _elna_tac_unary_expression(operand_node, symbol_table, @lhs_type, @lhs_value, @lhs_length);
elna_instruction_list_concatenate(current_instruction, instruction);
current_instruction := instruction;
(* Debug. Error stream output.
_syscall(2, name_pointer, name_length, 0, 0, 0, 64);
if lhs_length = 0 then
printf("# here %i\n\0", lhs_value);
else
printf("# here %.*s\n\0", lhs_length, lhs_value);
end;
fflush(0); *)
current_instruction := elna_instruction_list_concatenate(current_instruction, instruction);
(* Load the left expression from the stack; *)
instruction := _elna_tac_instruction_create(ElnaTacOperator.load_word);
instruction := _elna_tac_instruction_create(ElnaTacOperator.assign);
_elna_tac_instruction_set_operand(instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.t1, 0);
_elna_tac_instruction_set_operand(instruction, 2, ElnaTacOperand.offset, ElnaRtlRegister.sp, 72);
_elna_tac_instruction_set_operand(instruction, 2, ElnaTacOperand.stack, 72, 0);
elna_instruction_list_concatenate(current_instruction, instruction);
current_instruction := instruction;
@@ -2145,7 +2114,9 @@ begin
else
elna_instruction_list_concatenate(current_instruction, instruction)
end;
current_instruction := instruction;
if instruction <> 0 then
current_instruction := instruction
end;
(* Save the argument on the stack. *)
stack_offset := argument_count * 4;
@@ -2153,8 +2124,11 @@ begin
instruction := _elna_tac_instruction_create(ElnaTacOperator.store_word);
_elna_tac_instruction_set_operand(instruction, 1, operand_type, operand_value, operand_length);
_elna_tac_instruction_set_operand(instruction, 2, ElnaTacOperand.offset, ElnaRtlRegister.sp, 132 - stack_offset);
elna_instruction_list_concatenate(current_instruction, instruction);
if first_instruction = 0 then
first_instruction := instruction
else
elna_instruction_list_concatenate(current_instruction, instruction)
end;
current_instruction := instruction;
argument_count := argument_count + 1;
@@ -2176,7 +2150,8 @@ begin
goto elna_tac_call_finalize
end;
instruction := _elna_tac_jal(name, name_length);
instruction := _elna_tac_instruction_create(ElnaTacOperator.jal);
_elna_tac_instruction_set_operand(instruction, 1, ElnaTacOperand.symbol, name, name_length);
if first_instruction = 0 then
first_instruction := instruction
else
@@ -2359,7 +2334,7 @@ begin
first_instruction := elna_instruction_list_concatenate(first_instruction, last_instruction)
elsif node_kind = NodeKind.field_access_expression then
_elna_tac_enumeration_value(parser_node, operand_type, operand_value, operand_length);
first_instruction := _elna_tac_enumeration_value(parser_node, operand_type, operand_value, operand_length);
is_address^ := 0
elsif node_kind = NodeKind.call then
first_instruction := _elna_tac_call(parser_node, symbol_table);
@@ -2435,10 +2410,14 @@ begin
operand_length := 0;
instruction := _elna_tac_binary_expression(current_expression, symbol_table, @operand_type, @operand_value, @operand_length);
elna_instruction_list_concatenate(current_instruction, instruction);
if instruction <> 0 then
elna_instruction_list_concatenate(current_instruction, instruction);
current_instruction := instruction
end;
current_instruction := _elna_tac_load_word(ElnaRtlRegister.t1, ElnaRtlRegister.sp, 76);
elna_instruction_list_concatenate(instruction, current_instruction);
instruction := _elna_tac_load_word(ElnaRtlRegister.t1, ElnaRtlRegister.sp, 76);
elna_instruction_list_concatenate(current_instruction, instruction);
current_instruction := instruction;
instruction := _elna_tac_instruction_create(ElnaTacOperator.store_word);
_elna_tac_instruction_set_operand(instruction, 1, operand_type, operand_value, operand_length);
@@ -2489,8 +2468,7 @@ begin
_elna_tac_instruction_set_operand(instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.a0, 0);
_elna_tac_instruction_set_operand(instruction, 2, operand_type, operand_value, operand_length);
elna_instruction_list_concatenate(first_instruction, instruction);
return first_instruction
return elna_instruction_list_concatenate(first_instruction, instruction)
end;
(**
@@ -2626,6 +2604,7 @@ proc _elna_parser_statement();
var
token_kind: Word;
result : Word;
temporary: Word;
begin
result := 0;
_elna_lexer_read_token(@token_kind);
@@ -2640,8 +2619,9 @@ begin
result := _elna_parser_label_declaration()
elsif token_kind = ElnaLexerKind.identifier then
result := _elna_parser_designator();
temporary := _node_get_kind(result);
if _node_get_kind(result) <> NodeKind.call then
if temporary <> NodeKind.call then
result := _elna_parser_assign_statement(result)
end
end;
@@ -3667,59 +3647,61 @@ begin
return result
end;
proc _elna_tac_type_field(name_pointer: Word, name_length: Word, field_pointer: Word, field_offset: Word);
proc _elna_tac_accessor(name_pointer: Word, name_length: Word, field_pointer: Word, field_offset: Word, result: Word, method: Word);
var
first_result: Word;
second_result: Word;
instruction: Word;
new_name: Word;
name_target: Word;
new_length: Word;
field_length: Word;
instruction: Word;
name_target: Word;
next_instruction: Word;
begin
field_length := field_pointer + 4;
field_length := field_length^;
new_length := field_length + name_length;
new_length := new_length + 5;
first_result := malloc(ElnaInstructionDeclaration_size());
ElnaInstructionList_set_next(first_result, 0);
result^ := malloc(ElnaInstructionDeclaration_size());
ElnaInstructionList_set_next(result^, 0);
new_name := malloc(new_length);
name_target := new_name;
memcpy(name_target, name_pointer, name_length);
name_target := name_target + name_length;
memcpy(name_target, "_get_", 5);
memcpy(name_target, method, 5);
name_target := name_target + 5;
memcpy(name_target, field_pointer^, field_length);
ElnaInstructionDeclaration_set_name(first_result, new_name);
ElnaInstructionDeclaration_set_length(first_result, new_length);
ElnaInstructionDeclaration_set_name(result^, new_name);
ElnaInstructionDeclaration_set_length(result^, new_length);
instruction := _elna_tac_add(ElnaRtlRegister.a0, ElnaRtlRegister.a0, ElnaTacOperand.immediate, field_offset);
next_instruction := _elna_tac_load_word(ElnaRtlRegister.a0, ElnaRtlRegister.a0, 0);
instruction := _elna_tac_instruction_create(ElnaTacOperator.add);
_elna_tac_instruction_set_operand(instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.a0, 0);
_elna_tac_instruction_set_operand(instruction, 2, ElnaTacOperand.register, ElnaRtlRegister.a0, 0);
_elna_tac_instruction_set_operand(instruction, 3, ElnaTacOperand.immediate, field_offset, 0);
return instruction
end;
proc _elna_tac_type_field(name_pointer: Word, name_length: Word, field_pointer: Word, field_offset: Word);
var
first_result: Word;
second_result: Word;
instruction: Word;
next_instruction: Word;
begin
instruction := _elna_tac_accessor(name_pointer, name_length, field_pointer, field_offset, @first_result, "_get_");
next_instruction := _elna_tac_instruction_create(ElnaTacOperator.load_word);
_elna_tac_instruction_set_operand(next_instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.a0, 0);
_elna_tac_instruction_set_operand(next_instruction, 2, ElnaTacOperand.offset, ElnaRtlRegister.a0, 0);
elna_instruction_list_concatenate(instruction, next_instruction);
ElnaInstructionDeclaration_set_body(first_result, instruction);
second_result := malloc(ElnaInstructionDeclaration_size());
ElnaInstructionList_set_next(second_result, 0);
new_name := malloc(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);
ElnaInstructionDeclaration_set_name(second_result, new_name);
ElnaInstructionDeclaration_set_length(second_result, new_length);
instruction := _elna_tac_add(ElnaRtlRegister.a0, ElnaRtlRegister.a0, ElnaTacOperand.immediate, field_offset);
next_instruction := _elna_tac_store_word(ElnaRtlRegister.a1, ElnaRtlRegister.a0, 0);
instruction := _elna_tac_accessor(name_pointer, name_length, field_pointer, field_offset, @second_result, "_set_");
next_instruction := _elna_tac_instruction_create(ElnaTacOperator.store_word);
_elna_tac_instruction_set_operand(next_instruction, 1, ElnaTacOperand.register, ElnaRtlRegister.a1, 0);
_elna_tac_instruction_set_operand(next_instruction, 2, ElnaTacOperand.offset, ElnaRtlRegister.a0, 0);
elna_instruction_list_concatenate(instruction, next_instruction);
ElnaInstructionDeclaration_set_body(second_result, instruction);