worklog and cleanup

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

@@ -110,15 +110,10 @@ public class CodeGenImpl extends CodeGenBase
         backend.emitGlobalLabel(funcInfo.getCodeLabel());
         
         // --- Prologue ---
-        // space for return address = 1
-        // space for control link = 1
-        // space for static link =  1
-        // space for locals = num of locals
         String sizelabel = "@" + funcInfo.getFuncName()+".size";
         backend.emitADDI(SP, SP, "-"+sizelabel, "Reserve space for stack frame.");
         backend.emitSW(RA, SP, sizelabel+"-4", "return address");
         backend.emitSW(FP, SP, sizelabel + "-8", "control link");
-        // if we want to add static link
         backend.emitADDI(FP, SP, sizelabel, "New FP is at old SP.");
         
         StmtAnalyzer stmtAnalyzer = new StmtAnalyzer(funcInfo);
@@ -134,10 +129,6 @@ public class CodeGenImpl extends CodeGenBase
         
         
         // --- Function Body ---
-        // statements load all the variables that caller put on stack
-        // statements use fp to load the variables
-        // example: 0(fp) is the last variable (z) while 8(fp) is the first variable (x) 
-        // for function with 3 params f(x, y, z)
         for (Stmt stmt : funcInfo.getStatements()) 
         {
             stmt.dispatch(stmtAnalyzer);
@@ -145,6 +136,7 @@ public class CodeGenImpl extends CodeGenBase
         stmtAnalyzer.emitSizeLabel();
         backend.emitJ(stmtAnalyzer.epilogue, "Jump to function epilogue");
         
+        
         // --- Epilogue ---
         backend.emitLocalLabel(stmtAnalyzer.epilogue, "Epilogue");
         backend.emitLW(RA, FP, -4, "Get return address");