Parse local variables

lib/Language/Elna/RiscV/CodeGenerator.hs

@@ -427,11 +427,11 @@ quadruple (GreaterOrEqualQuadruple operand1 operand2 goToLabel)
         then pure $ Vector.singleton $ unconditionalJal goToLabel
         else pure Vector.empty
     | VariableOperand variableOperand1 <- operand1
-    , VariableOperand variableOperand2 <- operand2 = do
+    , VariableOperand variableOperand2 <- operand2 =
         let Store operandRegister1 = variableOperand1
             Store operandRegister2 = variableOperand2
             Label goToLabel' = goToLabel
-        pure $ Vector.singleton
+         in pure $ Vector.singleton
             $ Instruction
             $ RiscV.RelocatableInstruction RiscV.Branch
             $ RiscV.RBranch goToLabel' RiscV.BGE operandRegister1 operandRegister2
@@ -453,6 +453,15 @@ quadruple (GreaterOrEqualQuadruple operand1 operand2 goToLabel)
             $ Instruction
             $ RiscV.RelocatableInstruction RiscV.Branch
             $ RiscV.RBranch goToLabel' RiscV.BGE immediateRegister operandRegister2
+quadruple (AssignQuadruple operand1 (Store register))
+    | IntOperand immediateOperand1 <- operand1 = pure
+        $ lui immediateOperand1 register
+    | VariableOperand variableOperand1 <- operand1 =
+        let Store operandRegister1 = variableOperand1
+         in pure $ Vector.singleton
+            $ Instruction
+            $ RiscV.BaseInstruction RiscV.OpImm
+            $ RiscV.I register RiscV.ADDI operandRegister1 0
 
 unconditionalJal :: Label -> Statement
 unconditionalJal (Label goToLabel) = Instruction