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CodeGenerator.py
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CodeGenerator.py
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from Phase1 import *
if(userChoice2=="y"):
debug5 = True
else:
debug5 = False
code = ""
firstSymbol = ''
genBy = "#Generated by Oberon 2 Compiler\n#Developed By\n#Sumit Bhagwani, Karanveer Singh, Sailesh R, Ish Dhand, Padi R\n";
def findFunc(func, symbolTable): #search for function with name func and return the symbol table of that function
global debug5
r = ProcEntry();
toReturn = {};
if(debug5):
print "printing func ", func
for id in symbolTable.symbolDictionary:
if(type(r)==type(symbolTable.symbolDictionary[id])):
if symbolTable.symbolDictionary[id].procName == func : #if this entry's name is func, return this entry's pointer(symboltable)
#toReturn['symbolTable'] = symbolTable.symbolDictionary[id].pointer;
#toReturn['procEntry'] = symbolTable.symbolDictionary[id];
return (symbolTable.symbolDictionary[id].pointer, symbolTable.symbolDictionary[id])
return toReturn;
else:
flag = findFunc(func,symbolTable.symbolDictionary[id].pointer) #search within this function's symbol table. if function found, return the symbol table found, else continue with loop
if(flag):
return flag
return False
instrSize = 4;
defaultFrameSize = 32;
table = SymbolTable()
funcReturnType = 'INTEGER'
funcFrameSize = 0
funcEntry = None
funcStack = []
def translate(quad, procname, label):
#global code;
#if(quad.op=='BEGIN_FUNC' or quad.op=='END_FUNC'):
global symbolTable
global debug5
global table
global funcReturnType
global funcFrameSize
global funcEntry
tempCode = ''
if(debug5):
print "printing procname ", procname
if(quad.op == 'BEGIN_FUNC' or quad.op == 'END_FUNC' or procname != ''):
if(quad.op == 'BEGIN_FUNC' or quad.op == 'END_FUNC'):
if(debug5):
print "Printing symb tab"
symbolTable.Print()
print "quad.arg1 ", quad.arg1
(table, funcEntry) = findFunc(quad.arg1, symbolTable) #find symboltable of the function and the procentry of the function
#print "function : ", quad.arg1
if(debug5):
print "TABLE KA OFFSET!!", table.offset
funcFrameSize = table.offset #space for local variables
#now, you'll be able to access global variable of offset t using $sp(frameSize - 2*instrsize - offset OR frameSize - instrsize - offset , depending on whether there is a return value)
j = 1
'''for i in funcEntry.type: #space for arguments (only if # of arguments > 4)
if(j>4):
if(i=='INTEGER'):
funcFrameSize += intSize
elif(i=='REAL'):
funcFrameSize += realSize
j+=1
'''
funcReturnType= funcEntry.returnType
funcFrameSize += instrSize #for storing the fp
if(funcReturnType):
#print "function with return type ", funcReturnType
funcFrameSize += instrSize #for storing the return address
else:
#print "no return type "
pass
if(debug5):
print funcFrameSize
funcFrameSize = ((funcFrameSize/defaultFrameSize)+1)*defaultFrameSize
assemblyOffset = funcFrameSize - instrSize #stores where the next thing is to be stored (wrt sp)
if(quad.op == 'BEGIN_FUNC'):
funcStack.append([quad.arg1, funcFrameSize, len(funcEntry.type)])
if(debug5):
print "pushing func ! ", funcStack, " ", label
print "hello!"
tempCode += quad.arg1+":\n"
tempCode += "subu $sp, $sp, "+str(funcFrameSize)+"\n"
tempCode += 'move $s0, $sp\n'
if(funcReturnType):
tempCode+="sw $ra, " + str(assemblyOffset) +"($sp)\n"
assemblyOffset -= instrSize
tempCode+="sw $fp, "+ str(assemblyOffset) +"($sp)\n" #save frame pointer
assemblyOffset -= instrSize
tempCode+="addu $fp, $sp, "+str(funcFrameSize)+"\n"
if(debug5):
print "printing tempcode ", tempCode
elif(quad.op=='END_FUNC'):
if(debug5):
print "ending function!!!"
if(funcReturnType):
tempCode += "lw $ra, "+ str(assemblyOffset) +"($sp)\n" #reload saved registers, and add sp, jump to return address
assemblyOffset -= instrSize
tempCode += "lw $fp, "+ str(assemblyOffset) + "($sp)\n"
assemblyOffset -= instrSize
tempCode+="addu $sp, $sp, " + str(funcFrameSize) + "\n"
tempCode += 'lw $s0, ($sp)\n'
tempCode += 'addu $sp, $sp, 4\n'
tempCode += "addu $sp, $sp, "+str(instrSize*len(funcEntry.type))+'\n'
tempCode+="jr $ra\n"
funcStack.pop()
if(debug5):
print "pushing func ! ", funcStack
else:
arg1offset = 0
arg2offset = 0
resultoffset = 0
arg1Location = 0
arg2Location = 0
resultLocation = 0
flag1 = 0
flag2 = 0
flag3 = 0
flag11 = 0
flag12 = 0
flag13 = 0
var = VarEntry()
if(quad.op=='+' or quad.op=='-' or quad.op=='*' or quad.op=='DIV' or quad.op =='MOD' or quad.op=='/' or quad.op in relOps):
for id in table.symbolDictionary:
entry = table.symbolDictionary[id]
if(entry.id == quad.arg1):
if(entry.offset < instrSize*len(funcEntry.type)):
arg1Location = funcFrameSize + entry.offset + instrSize
flag1 = 1
else:
arg1offset= entry.offset - instrSize*len(funcEntry.type)
flag11 = 1
if(entry.id == quad.arg2):
if(entry.offset < instrSize*len(funcEntry.type)):
arg2Location = funcFrameSize + entry.offset+ instrSize
flag2 = 1
else:
arg2offset= entry.offset - instrSize*len(funcEntry.type)
flag12 = 1
if(entry.id == quad.result):
if(debug5):
print "printing some stuff ", entry.offset
if(entry.offset < instrSize*len(funcEntry.type)):
resultLocation = funcFrameSize + entry.offset+ instrSize
if(debug5):
print "address : ", resultLocation
flag3 = 1
else:
resultoffset= entry.offset - instrSize*len(funcEntry.type)
flag13 = 1
if(funcReturnType):
if(flag1==0 and flag11==1):
arg1Location = funcFrameSize - 3*instrSize - arg1offset
if(flag2==0 and flag12==1):
arg2Location = funcFrameSize - 3*instrSize - arg2offset
if(flag3==0 and flag13==1):
resultLocation = funcFrameSize - 3*instrSize - resultoffset
else:
if(flag1==0 and flag11==1):
arg1Location = funcFrameSize - 2*instrSize - arg1offset
if(flag2==0 and flag12==1):
arg2Location = funcFrameSize - 2*instrSize - arg2offset
if(flag3==0 and flag13==1):
resultLocation = funcFrameSize - 2*instrSize - resultoffset
elif(quad.op=='READINT' or quad.op=='READREAL' or quad.op is None or quad.op=='param' or quad.op=='return' or quad.op in unaryOps or quad.op=='ifgoto' or quad.op=='retval'):
for id in table.symbolDictionary:
entry = table.symbolDictionary[id]
if(type(entry)==type(var)):
if(entry.id == quad.arg1):
if(entry.offset < instrSize*len(funcEntry.type)):
arg1Location = funcFrameSize + entry.offset+ instrSize
flag1 = 1
else:
arg1offset= entry.offset - instrSize*len(funcEntry.type)
if(debug5):
print "HAAAAAAAAAAA"
flag11=1
if(entry.id == quad.result and quad.op!='return'):
if(entry.offset < instrSize*len(funcEntry.type)):
resultLocation = funcFrameSize + entry.offset+ instrSize
flag3 = 1
else:
resultoffset= entry.offset - instrSize*len(funcEntry.type)
flag13=1
if(funcReturnType):
if(flag1==0 and flag11==1):
arg1Location = funcFrameSize - 3*instrSize - arg1offset
#arg2Location = funcFrameSize - 3*instrSize - arg2offset
if(quad.op is None or quad.op in unaryOps):
if(flag3==0 and flag13 == 1):
resultLocation = funcFrameSize - 3*instrSize - resultoffset
else:
if(flag1==0 and flag11==1):
arg1Location = funcFrameSize - 2*instrSize - arg1offset
#arg2Location = funcFrameSize - 3*instrSize - arg2offset
if(quad.op is None or quad.op in unaryOps):
if(flag3==0 and flag13 == 1):
resultLocation = funcFrameSize - 2*instrSize - resultoffset
if(debug5):
print "PRINTING FLAG11!!! ", flag11
if(quad.op=='+'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1, '+ str(quad.arg1) +'\n';
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'lw $t2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'lw $t2, _' + quad.arg2 + '\n'
tempCode += 'add $t0,$t1,$t2 \n';
if(flag13==1):
tempCode += 'sw $t0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t0, _' + quad.result + '\n'
elif(quad.opType == 'REAL'):
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'l.s $f1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f1, _' + quad.arg1 + '\n'
#tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'l.s $f2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f2, _' + quad.arg2 + '\n'
#tempCode += 'l.s $f2, _'+quad.arg2+'\n';
tempCode += 'add.s $f0,$f1,$f2 \n';
if(flag13==1):
tempCode += 's.s $f0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f0, _' + quad.result + '\n'
#tempCode += 's.s $f0,_'+quad.result+'\n';
#tempCode += 'sw $t0,'+str(resultLocation)+'($s0)\n';
elif(quad.op=='-'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1, '+ str(quad.arg1) +'\n';
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'lw $t2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'lw $t2, _' + quad.arg2 + '\n'
tempCode += 'sub $t0,$t1,$t2 \n';
if(flag13==1):
tempCode += 'sw $t0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t0, _' + quad.result + '\n'
elif(quad.opType == 'REAL'):
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'l.s $f1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f1, _' + quad.arg1 + '\n'
#tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'l.s $f2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f2, _' + quad.arg2 + '\n'
#tempCode += 'l.s $f2, _'+quad.arg2+'\n';
tempCode += 'sub.s $f0,$f1,$f2 \n';
if(flag13==1):
tempCode += 's.s $f0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f0, _' + quad.result + '\n'
elif(quad.op=='*'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1, '+ str(quad.arg1) +'\n';
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
if(quad.arg2=='i'):
print "printing stuff ", flag12
if(flag12==1):
tempCode += 'lw $t2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'lw $t2, _' + quad.arg2 + '\n'
tempCode += 'mul $t0,$t1,$t2 \n';
if(flag13==1):
tempCode += 'sw $t0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t0, _' + quad.result + '\n'
#tempCode += 'sw $t0,_'+quad.result+'\n';
elif(quad.opType == 'REAL'):
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'l.s $f1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f1, _' + quad.arg1 + '\n'
#tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'l.s $f2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f2, _' + quad.arg2 + '\n'
#tempCode += 'l.s $f2, _'+quad.arg2+'\n';
tempCode += 'mul.s $f0,$f1,$f2 \n';
if(flag13==1):
tempCode += 's.s $f0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f0, _' + quad.result + '\n'
elif(quad.op=='DIV'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1, '+ str(quad.arg1) +'\n';
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'lw $t2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'lw $t2, _' + quad.arg2 + '\n'
tempCode += 'div $t1,$t2 \n';
tempCode += 'mflo $t0\n';
if(flag13==1):
tempCode += 'sw $t0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t0, _' + quad.result + '\n'
elif(quad.op=='MOD'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1, '+ str(quad.arg1) +'\n';
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'lw $t2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'lw $t2, _' + quad.arg2 + '\n'
tempCode += 'div $t1,$t2 \n';
tempCode += 'mfhi $t0\n';
if(flag13==1):
tempCode += 'sw $t0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t0, _' + quad.result + '\n'
elif(quad.op=='/'):
if(quad.opType == 'REAL'):
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'l.s $f1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f1, _' + quad.arg1 + '\n'
#tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'l.s $f2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f2, _' + quad.arg2 + '\n'
#tempCode += 'l.s $f2, _'+quad.arg2+'\n';
tempCode += 'div.s $f0,$f1,$f2 \n';
if(flag13==1):
tempCode += 's.s $f0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f0, _' + quad.result + '\n'
elif(quad.op in relOps):
if(debug5):
print "Entered relOps", quad.Print(-1)
if(quad.opType=='INTEGER'):
if(debug5):
print "Entered integer relOps"
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
#tempCode += 'lw $t1, '+str(arg1Location)+'($s0)\n';
#tempCode += 'lw $t1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'lw $t2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'lw $t2, _' + quad.arg2 + '\n'
#tempCode += 'lw $t1, '+str(arg2Location)+'($s0)\n';
#tempCode += 'lw $t2, _'+quad.arg2+'\n';
if(quad.op=='<'):
tempCode += 'blt $t1, $t2, _'+str(quad.result)+'\n'
elif(quad.op=='<='):
tempCode += 'ble $t1, $t2, _'+str(quad.result)+'\n'
elif(quad.op=='>'):
tempCode += 'bgt $t1, $t2, _'+str(quad.result)+'\n'
elif(quad.op=='>='):
tempCode += 'bge $t1, $t2, _'+str(quad.result)+'\n'
elif(quad.op=='='):
tempCode += 'beq $t1, $t2, _'+str(quad.result)+'\n'
elif(quad.op=='#'):
tempCode += 'bne $t1, $t2, _'+str(quad.result)+'\n'
elif(quad.opType=='REAL'):
if(debug5):
print "Entered real relOps"
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'l.s $f1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f1, _' + quad.arg1 + '\n'
#tempCode += 'l.s $f1, '+str(arg1Location)+'($s0)\n';
#tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
if(flag12==1):
tempCode += 'l.s $f2, ' + str(arg2Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f2, _' + quad.arg2 + '\n'
#tempCode += 'l.s $f2, '+str(arg2Location)+'($s0)\n';
#tempCode += 'l.s $f2, _'+quad.arg2+'\n';
if(quad.op=='<'):
tempCode += 'c.lt.s $f1, $f2 \n'
tempCode += 'bc1t _'+str(quad.result)+'\n';
elif(quad.op=='<='):
tempCode += 'c.le.s $f1, $f2 \n'
tempCode += 'bc1t _'+str(quad.result)+'\n';
elif(quad.op=='>'):
tempCode += 'c.le.s $f1, $f2 \n'
tempCode += 'bc1f _'+str(quad.result)+'\n';
elif(quad.op=='>='):
tempCode += 'c.lt.s $f1, $f2 \n'
tempCode += 'bc1f _'+str(quad.result)+'\n';
elif(quad.op=='='):
tempCode += 'c.eq.s $f1, $f2 \n';
tempCode += 'bc1t _'+str(quad.result)+'\n'
elif(quad.op=='#'):
tempCode += 'c.eq.s $f1, $f2 \n';
tempCode += 'bc1f _'+str(quad.result)+'\n'
elif(quad.op in unaryOps):
if(debug5):
print "Entered unaryOps", quad.Print(-1)
if(quad.op == 'intToReal'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
#tempCode += 'lw $t1, '+str(arg1Location)+'($s0)\n';
#tempCode += 'lw $t1, _'+quad.arg1+'\n';
tempCode += 'mtc1 $t1, $f0 \n';
tempCode += 'cvt.s.w $f0, $f0\n';
if(flag13==1):
tempCode += 's.s $f0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f0, _' + quad.result + '\n'
#tempCode += 's.s $fo, '+str(resultLocation)+'($s0)\n';
#tempCode += 's.s $f0,_'+quad.result+'\n';
elif(quad.opType=='INTEGER'):
if(debug5):
print "Entered integer unaryOps"
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
tempCode += 'lw $t1, '+str(arg1Location)+'($s0)\n';
#tempCode += 'lw $t1, _'+quad.arg1+'\n';
if(quad.op=='UMINUS'):
tempCode += 'neg $t0, $t1\n'
if(flag13==1):
tempCode += 'sw $t0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t0, _' + quad.result + '\n'
#tempCode += 'sw $t0, '+str(resultLocation)+'($s0)\n';
#tempCode += 'sw $t0,_'+quad.result+'\n';
elif(quad.op=='UPLUS'):
#tempCode += 'sw $t1,_'+quad.result+'\n';
if(flag13==1):
tempCode += 'sw $t1, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t1, _' + quad.result + '\n'
#tempCode += 'sw $t1, '+str(resultLocation)+'($s0)\n';
elif(quad.opType=='REAL'):
if(debug5):
print "Entered real unaryOps";
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
if(flag11==1):
tempCode += 'l.s $f1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f1, _' + quad.arg1 + '\n'
#tempCode += 'l.s $f1, '+str(arg1Location)+'($s0)\n';
#tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(quad.op=='UMINUS'):
tempCode += 'neg.s $f0, $f1\n'
if(flag13==1):
tempCode += 's.s $f0, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f0, _' + quad.result + '\n'
#tempCode += 's.s $f0, '+str(resultLocation)+'($s0)\n';
#tempCode += 's.s $f0,_'+quad.result+'\n';
elif(quad.op=='UPLUS'):
#tempCode += 's.s $f1,_'+quad.result+'\n';
if(flag13==1):
tempCode += 's.s $f1, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f1, _' + quad.result + '\n'
#tempCode += 's.s $f1, '+str(resultLocation)+'($s0)\n';
elif(quad.op=='goto'):
tempCode += 'b _'+str(quad.result)+'\n'
elif(quad.op=='ifgoto'):
if(flag11==1):
tempCode += 'lw $t0, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t0, _' + quad.arg1 + '\n'
#tempCode += 'lw $t0, '+str(arg1Location)+'($s0)\n'
tempCode += 'beq $t0,1, _'+str(quad.result)+'\n'
elif(quad.op == 'READINT'):
tempCode += 'li $v0 , 5\n';
tempCode += 'syscall\n';
if(flag11==1):
tempCode += 'sw $v0, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'sw $v0, _' + quad.arg1 + '\n'
#tempCode += 'sw $v0, _'+str(quad.arg1)+'\n';
elif(quad.op == 'READREAL'):
tempCode += 'li $v0 , 6\n';
tempCode += 'syscall\n';
if(flag11==1):
tempCode += 's.s $f0, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 's.s $f0, _' + quad.arg1 + '\n'
#tempCode += 's.s $f0, _'+str(quad.arg1)+'\n';
elif(quad.op is None):
if(quad.arg1=='retval'):
if(quad.opType!='REAL'):
reg = '$v0'
else:
reg = '$f0'
#tempCode += 'addu $s0, $s0, 4\n'
if(quad.opType!='REAL'):
if(flag13==1):
tempCode += 'sw ' + reg+ ', ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw '+reg+ ', _' + quad.result + '\n'
else:
if(flag13==1):
tempCode += 's.s ' + reg+ ', ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s '+reg+ ', _' + quad.result + '\n'
#tempCode += 'sw $v0, '+str(resultLocation)+'($s0)\n'
elif(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
if(flag13==1):
tempCode += 'sw $t1, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t1, _' + quad.result + '\n'
elif(type(quad.arg1)==type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
if(flag13==1):
tempCode += 's.s $f1, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f1, _' + quad.result + '\n'
#tempCode += 'sw $t1,'+str(resultLocation)+'($s0)\n';
#elif(type(quad.arg1) == type(1.0)):
# tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
# tempCode += 's.s $f1,_'+quad.result+'\n';
elif(quad.arg1==True):
tempCode += 'li $t1, 1\n';
if(flag13==1):
tempCode += 'sw $t1, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t1, _' + quad.result + '\n'
#tempCode += 'sw $t1,'+str(resultLocation)+'($s0)\n';
elif(quad.arg1==False):
tempCode += 'li $t1, 0\n';
if(flag13==1):
tempCode += 'sw $t1, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t1, _' + quad.result + '\n'
#tempCode += 'sw $t1,'+str(resultLocation)+'($s0)\n';
else:
if(quad.opType=='REAL'):
if(flag11==1):
tempCode += 'l.s $f1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'l.s $f1, _' + quad.arg1 + '\n'
#tempCode += 'lw $t1, '+str(arg1Location)+'($s0)\n';
if(flag13==1):
tempCode += 's.s $f1, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 's.s $f1, _' + quad.result + '\n'
else:
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
#tempCode += 'lw $t1, '+str(arg1Location)+'($s0)\n';
if(flag13==1):
tempCode += 'sw $t1, ' + str(resultLocation) + ' ($s0) \n'
else:
tempCode += 'sw $t1, _' + quad.result + '\n'
#tempCode += 'sw $t1, '+str(resultLocation)+'($s0)\n';
elif(quad.op=='param'):
#elif(quad.op=='param'):
if(quad.opType == 'STRING'):
#DOUBT
tempCode += "la $a0, STRING"+str(quad.arg1)+"\n"
elif(type(quad.arg1)==type(1)):
tempCode += 'subu $sp, $sp, 4\n'
tempCode += 'li $t1,' + str(quad.arg1)+'\n'
tempCode += 'sw $t1, ($sp)\n'
elif(type(quad.arg1)==type(1.0)):
tempCode += 'subu $sp, $sp, 4\n'
tempCode += 'li.s $f1,' + str(quad.arg1)+'\n'
tempCode += 's.s $f1, ($sp)\n'#can be a problem
elif("'" in quad.arg1):
tempCode += 'subu $sp, $sp, 4\n'
tempCode += 'li $t1, '+quad.arg1+'\n'
tempCode += 'sw $t1, ($sp)\n'
else:
#assuming param is of type int
tempCode += 'subu $sp, $sp, 4\n'
if(flag11==1):
tempCode += 'lw $t1, ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'lw $t1, _' + quad.arg1 + '\n'
#tempCode += 'lw $t1, '+str(arg1Location)+'($s0)\n';
tempCode += 'sw $t1, ($sp)\n'
elif(quad.op=='return'):
if(type(quad.arg1)==type(1)):
tempCode += 'li $v0, '+str(quad.arg1)+'\n'
elif(type(quad.arg1)==type(1.0)):
tempCode += 'li.s $f0, '+str(quad.arg1)+'\n'
#tempCode += 'li $t1,' + str(quad.arg1)+'\n'
#tempCode += 'sw $t1, $s0\n'
else:
if(debug5):
print "PRINTING FLAG11 !!! ", flag11
'''
if(funcReturnType):
reg = '$v0'
else:
reg = '$f0'
'''
if(flag11==1):
if(quad.opType!='REAL'):
tempCode += 'lw ' + '$v0'+ ', ' + str(arg1Location) + ' ($s0) \n'
else:
tempCode += 'l.s ' + '$f0'+ ', ' + str(arg1Location) + ' ($s0) \n'
else:
if(quad.opType!='REAL'):
tempCode += 'lw ' + '$v0'+ ', _' + quad.arg1 + '\n'
else:
tempCode += 'l.s ' + '$f0'+ ', _' + quad.arg1 + '\n'
#tempCode += 'lw $v0, '+str(arg1Location)+'($s0)\n'
assemblyOffset = funcFrameSize - instrSize
if(funcReturnType):
tempCode += "lw $ra, "+ str(assemblyOffset) +"($sp)\n" #reload saved registers, and add sp, jump to return address
assemblyOffset -= instrSize
tempCode += "lw $fp, "+ str(assemblyOffset) + "($sp)\n"
assemblyOffset -= instrSize
tempCode+="addu $sp, $sp, " + str(funcFrameSize) + "\n"
tempCode += 'lw $s0, ($sp)\n'
tempCode += 'addu $sp, $sp, 4\n'
tempCode += "addu $sp, $sp, "+str(instrSize*len(funcEntry.type))+'\n'
tempCode+="jr $ra\n"
elif(quad.op=='call'):
#DOUBT
if(quad.arg1 == 'Out.Ln'):
tempCode += 'jal Ln\n'
elif(quad.arg1 == 'Out.Int'):
#tempCode += 'move $a0, $t1\n'
tempCode += 'lw $a0, ($sp)\n';
tempCode += 'li $v0, 1\n'
tempCode += 'syscall\n'
tempCode += "la $a0, linespace\n"#by default print a line space
tempCode += "li $v0,4\n"
tempCode += "syscall\n"
tempCode += "addu $sp, $sp, 4\n"
elif(quad.arg1 == 'Out.Char'):
#tempCode += 'move $a0, $t1\n'
tempCode += 'lw $a0, ($sp)\n';
tempCode += 'li $v0, 11\n'
tempCode += 'syscall\n'
tempCode += "la $a0, linespace\n"#by default print a line space
tempCode += "li $v0,4\n"
tempCode += "syscall\n"
tempCode += "addu $sp, $sp, 4\n"
elif(quad.arg1 == 'Out.Real'):
#code+="\nl.s $f12,_day3 \nli $v0, 2\nsyscall\n";
#tempCode += 'mov.s $f12, $f1\n'
tempCode += 'l.s $f12, ($sp)\n';
tempCode += 'li $v0, 2\n'
tempCode += 'syscall\n'
tempCode += "la $a0, linespace\n"#by default print a line space
tempCode += "li $v0,4\n"
tempCode += "syscall\n"
tempCode += "addu $sp, $sp, 4\n"
elif(quad.arg1 == 'Out.String'):
tempCode += "li $v0,4\n"
tempCode += "syscall\n"
tempCode += "la $a0, linespace\n"#by default print a line space
tempCode += "li $v0,4\n"
tempCode += "syscall\n"
#tempCode += "addu $sp, $sp, 4\n"
else:
tempCode += 'subu $sp, $sp, 4\n'
tempCode += 'sw $s0, ($sp)\n'
tempCode += 'jal '+quad.arg1+'\n'
elif(procname == ''):
if(quad.op=='+'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
tempCode += 'lw $t1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
tempCode += 'lw $t2, _'+quad.arg2+'\n';
tempCode += 'add $t0,$t1,$t2 \n';
tempCode += 'sw $t0,_'+quad.result+'\n';
elif(quad.opType == 'REAL'):
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
tempCode += 'l.s $f2, _'+quad.arg2+'\n';
tempCode += 'add.s $f0,$f1,$f2 \n';
tempCode += 's.s $f0,_'+quad.result+'\n';
elif(quad.op=='-'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
tempCode += 'lw $t1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
tempCode += 'lw $t2, _'+quad.arg2+'\n';
tempCode += 'sub $t0,$t1,$t2 \n';
tempCode += 'sw $t0,_'+quad.result+'\n';
elif(quad.opType == 'REAL'):
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
tempCode += 'l.s $f2, _'+quad.arg2+'\n';
tempCode += 'sub.s $f0,$f1,$f2 \n';
tempCode += 's.s $f0,_'+quad.result+'\n';
elif(quad.op=='*'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
tempCode += 'lw $t1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
tempCode += 'lw $t2, _'+quad.arg2+'\n';
tempCode += 'mul $t0,$t1,$t2 \n';
tempCode += 'sw $t0,_'+quad.result+'\n';
elif(quad.opType == 'REAL'):
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
tempCode += 'l.s $f2, _'+quad.arg2+'\n';
tempCode += 'mul.s $f0,$f1,$f2 \n';
tempCode += 's.s $f0,_'+quad.result+'\n';
elif(quad.op=='DIV'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
tempCode += 'lw $t1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
tempCode += 'lw $t2, _'+quad.arg2+'\n';
tempCode += 'div $t1,$t2 \n';
tempCode += 'mflo $t0\n';
tempCode += 'sw $t0,_'+quad.result+'\n';
elif(quad.op=='MOD'):
if(quad.opType == 'INTEGER'):
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
tempCode += 'lw $t1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1)):
tempCode += 'li $t2,'+str(quad.arg2)+'\n';
else:
tempCode += 'lw $t2, _'+quad.arg2+'\n';
tempCode += 'div $t1,$t2 \n';
tempCode += 'mfhi $t0\n';
tempCode += 'sw $t0,_'+quad.result+'\n';
elif(quad.op=='/'):
if(quad.opType == 'REAL'):
if(type(quad.arg1) == type(1.0)):
tempCode += 'li.s $f1,'+str(quad.arg1)+'\n';
else:
tempCode += 'l.s $f1, _'+quad.arg1+'\n';
if(type(quad.arg2) == type(1.0)):
tempCode += 'li.s $f2,'+str(quad.arg2)+'\n';
else:
tempCode += 'l.s $f2, _'+quad.arg2+'\n';
tempCode += 'div.s $f0,$f1,$f2 \n';
tempCode += 's.s $f0,_'+quad.result+'\n';
elif(quad.op in relOps):
if(debug5):
print "Entered relOps", quad.Print(-1)
if(quad.opType=='INTEGER'):
if(debug5):
print "Entered integer relOps"
if(type(quad.arg1) == type(1)):
tempCode += 'li $t1,'+str(quad.arg1)+'\n';
else:
tempCode += 'lw $t1, _'+quad.arg1+'\n';