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Used incSp

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master
Apoorva Ranade 4 years ago
parent b32942a1c2
commit 38e9887638
1 changed files with 10 additions and 10 deletions
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20
src/main/java/chocopy/pa3/CodeGenImpl.java
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@ -536,11 +536,11 @@ public class CodeGenImpl extends CodeGenBase
//Store address and length of lists on stack //Store address and length of lists on stack
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Store address of first list"); backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Store address of first list");
sp_off++; incSp(1);
backend.emitSW(Register.T0, Register.FP, -sp_off*wordSize, "Store address of second list"); backend.emitSW(Register.T0, Register.FP, -sp_off*wordSize, "Store address of second list");
sp_off++; incSp(1);
backend.emitSW(Register.T3, Register.FP, -sp_off*wordSize, "Store length of combined list"); backend.emitSW(Register.T3, Register.FP, -sp_off*wordSize, "Store length of combined list");
sp_off++; incSp(1);
//Allocate space on heap //Allocate space on heap
backend.emitLA(Register.A0, listClass.getPrototypeLabel(), "Load empty list"); backend.emitLA(Register.A0, listClass.getPrototypeLabel(), "Load empty list");
@ -581,7 +581,7 @@ public class CodeGenImpl extends CodeGenBase
{ {
node.right.dispatch(this); node.right.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off); backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off);
sp_off++; incSp(1);
node.left.dispatch(this); node.left.dispatch(this);
sp_off--; sp_off--;
backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off); backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off);
@ -656,7 +656,7 @@ public class CodeGenImpl extends CodeGenBase
{ {
node.right.dispatch(this); node.right.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off); backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off);
sp_off++; incSp(1);
node.left.dispatch(this); node.left.dispatch(this);
sp_off--; sp_off--;
backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off); backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off);
@ -667,7 +667,7 @@ public class CodeGenImpl extends CodeGenBase
{ {
node.right.dispatch(this); node.right.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off); backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off);
sp_off++; incSp(1);
node.left.dispatch(this); node.left.dispatch(this);
sp_off--; sp_off--;
backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off); backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off);
@ -679,7 +679,7 @@ public class CodeGenImpl extends CodeGenBase
Label label = generateLocalLabel(); Label label = generateLocalLabel();
node.left.dispatch(this); node.left.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off); backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off);
sp_off++; incSp(1);
backend.emitBEQZ(Register.A0, label, "If first operand is false, don't check second"); backend.emitBEQZ(Register.A0, label, "If first operand is false, don't check second");
node.right.dispatch(this); node.right.dispatch(this);
sp_off--; sp_off--;
@ -692,7 +692,7 @@ public class CodeGenImpl extends CodeGenBase
Label label = generateLocalLabel(); Label label = generateLocalLabel();
node.left.dispatch(this); node.left.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off); backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off);
sp_off++; incSp(1);
backend.emitBNEZ(Register.A0, label, "If first operand is true, don't check second"); backend.emitBNEZ(Register.A0, label, "If first operand is true, don't check second");
node.right.dispatch(this); node.right.dispatch(this);
sp_off--; sp_off--;
@ -714,7 +714,7 @@ public class CodeGenImpl extends CodeGenBase
{ {
node.right.dispatch(this); node.right.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off); backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off);
sp_off++; incSp(1);
node.left.dispatch(this); node.left.dispatch(this);
sp_off--; sp_off--;
backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off); backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off);
@ -783,7 +783,7 @@ public class CodeGenImpl extends CodeGenBase
node.value.dispatch(this); node.value.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Store variable "+node.var.identifier.name+" value in Stack"); backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Store variable "+node.var.identifier.name+" value in Stack");
offsetMap.put(svi, sp_off); offsetMap.put(svi, sp_off);
sp_off++; incSp(1);
return null; return null;
} }

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