[DO NOT BUILD] working on push/pop

src/main/java/chocopy/pa3/CodeGenImpl.java

@@ -134,11 +134,9 @@ public class CodeGenImpl extends CodeGenBase {
             if (typ.equals(SymbolType.INT_TYPE)) {
                 backend.emitLA(A0, intClass.getPrototypeLabel(), "Load prototype address");
                 // save our objReg on stack before `alloc`
-                backend.emitADDI(SP, SP, -4, "Decrement stack ptr 1");
-                backend.emitSW(objReg, SP, 0,  "Store the literal value");
+                betterBackend.emitPush(objReg, "Store the literal value");
                 backend.emitJAL(objectAllocLabel, "Allocate int");
-                backend.emitLW(objReg, SP, 0, "Load literal value again");
-                backend.emitADDI(SP, SP, 4, "Increment stack ptr 1");
+                betterBackend.emitPop(objReg, "Load literal value again");
                 backend.emitSW(objReg, A0, 3 * backend.getWordSize(), "Set __int__ value");
             } else if (typ.equals(SymbolType.STR_TYPE)) {
                 // objReg already has a ptr in this case. just move to A0.