public override string GenerateCode()
{
string result = "";
result += s.Childs[0].GenerateCode();
string reg = MIPS.LastReg();
result += MIPS.Emit(MIPS.Opcodes.neg, reg, reg);
return(result);
}
public override string GenerateCode()
{
SymbolTable.Symbols.Push(Symbols);
var s = "";// = ClassName + "." + Name + ":\n";//todo add the calss name :(
if (ClassName == "" || Name.ToLower() == "main")
{
s += Name + ":\n";
}
else
{
s += ClassName + "." + Name + ":\n";
}
int offset = 4;
var reg1 = MIPS.GetReg();//
foreach (var item in Params)
{
s += MIPS.Emit(MIPS.Opcodes.lw, reg1, offset + "($sp)");//pop all your sons
s += MIPS.Emit(MIPS.Opcodes.usw, reg1, /* Name + "." +*/ item.Key);
offset += 4;
}
s += base.GenerateCode();
if (ClassName == "" && Name.ToLower() == "main")
{
s += "\tli $v0, 10\t\t\t# 10 is the exit syscall.\n\tsyscall\t\t\t\t# do the syscall.\n";
}
else
{
s += MIPS.Emit(MIPS.Opcodes.move, "$v0", MIPS.LastReg());
try
{
offset = 8;
var c = SymbolTable.Classes[ClassName];
var reg0 = MIPS.GetReg();
s += MIPS.Emit(MIPS.Opcodes.lw, reg0, 0 + "($sp)");//pop all your sons
foreach (var item in c.Attributes)
{
s += MIPS.Emit(MIPS.Opcodes.lw, reg1, item.Key); //pop all your sons
s += MIPS.Emit(MIPS.Opcodes.sw, reg1, offset + "(" + reg0 + ")"); //pop all your sons
offset += 4;
}
}catch (System.Exception) {}
s += MIPS.Emit(MIPS.Opcodes.jr);
}
SymbolTable.Symbols.Pop();
return(s);
}
public override string GenerateCode()
{
string result = "";
result += lhs.GenerateCode();
string lhsReg = MIPS.LastReg();
result += rhs.GenerateCode();
string rhsReg = MIPS.LastReg();
result += MIPS.Emit(MIPS.Opcodes.seq, rhsReg, lhsReg, rhsReg);
return(result);
}
public override string GenerateCode()
{
/**/
var s = "";
var register = "";
var v = TryGetValue();
if (v != null)
{
register = MIPS.GetReg();
s += MIPS.Emit(MIPS.Opcodes.li, register, v.ToString(), "\t\t\t# calculated in compilation time :)");
return(s);
}
var l = LE.GenerateCode();
//var reg2 = (MIPS.regCount - 1).ToReg();
var reg2 = MIPS.LastReg();//
var r = RE.GenerateCode();
//var reg1 = (MIPS.regCount - 1).ToReg();
var reg1 = MIPS.LastReg();//
register = MIPS.GetReg();
switch (OP)
{
case "+":
s += MIPS.Emit(MIPS.Opcodes.add, register, reg2, reg1);
break;
case "-":
s += MIPS.Emit(MIPS.Opcodes.sub, register, reg2, reg1);
break;
case "*":
s += MIPS.Emit(MIPS.Opcodes.mul, register, reg2, reg1);
break;
case "/":
s += MIPS.Emit(MIPS.Opcodes.div, register, reg2, reg1);
break;
default:
break;
}
return(r + l + s);
}
public override string GenerateCode()
{
int r = TryGetValue();
string result = "";
foreach (var child in Childs)
{
result += child.GenerateCode();
}
string lastReg = MIPS.LastReg();
result += MIPS.Emit(MIPS.Opcodes.not, lastReg, lastReg);
return(result);
}
public override string GenerateCode()
{
MIPS.whileCount++;
string code = "";
string whileName = "while" + MIPS.whileCount.ToString();
string whileEnd = "whileEnd" + MIPS.whileCount.ToString();
code += whileName + ":\n";
code += Cond.GenerateCode();
string condEval = MIPS.LastReg();
code += MIPS.Emit(MIPS.Opcodes.bne, condEval, "1", whileEnd);
code += Body.GenerateCode();
code += MIPS.Emit(MIPS.Opcodes.j, whileName);
code += whileEnd + ":\n";
return(code);
}
public override string GenerateCode()
{
try
{
CallerType = SymbolTable.Symbols.Peek()[((IdentifierNode)Childs[0]).Name];
}
catch (Exception)
{
Type = Childs[0].Type;
CallerType = SymbolTable.Classes[Type];
}
var s = "# Atsim cal\t\t\t" + CallerType.Name + "." + MethodID.GetText() + "\n";
int offset = 0;
foreach (var item in Childs)
{
s += item.GenerateCode();
var reg1 = MIPS.LastReg(); //
s += MIPS.Emit(MIPS.Opcodes.sw, reg1, offset + "($sp)"); //push all your sons
offset += 4;
//s += MIPS.Emit(MIPS.Opcodes.push, reg1);//push all your sons
}
/*Parche*/
try{
var t = MIPS.LastReg();
s += MIPS.Emit(MIPS.Opcodes.lw, t, ((IdentifierNode)Childs[0]).Name);//load the caller
offset = 8;
var n = MIPS.GetReg();
foreach (var item in CallerType.Attributes)// iterate the attributes
{
s += MIPS.Emit(MIPS.Opcodes.lw, n, offset + "(" + t + ")");
s += MIPS.Emit(MIPS.Opcodes.usw, n, item.Key);
offset += 4;
}
}catch (Exception) {}
/* end of Parche*/
//s += MIPS.Emit(MIPS.Opcodes.sw, MIPS.LastReg().ToReg(), );
var m = CallerType.GetMethod(MethodID.GetText());
var callerTypeName = m.ClassName;
if (callerTypeName != CallerType.Name)
{
//cast
s += MIPS.Emit(MIPS.Opcodes.lw, MIPS.LastReg(), "0($sp)");
s += MIPS.Emit(MIPS.Opcodes.move, "$s2", MIPS.LastReg());
var j = MIPS.LastReg();
var y = MIPS.GetReg();
s += MIPS.Emit(MIPS.Opcodes.lw, y, SymbolTable.Classes[CallerType.Name].Size - 4 + "(" + j + ")");
s += MIPS.Emit(MIPS.Opcodes.sw, y, "0($sp)");
//s += MIPS.Emit(MIPS.Opcodes.sw, MIPS.LastReg(), "0($sp)");
}
//s += MIPS.Emit(MIPS.Opcodes.move, "$s0", "$ra");
s += MIPS.Emit(MIPS.Opcodes.jal, callerTypeName + "." + MethodID);// this blows $ra
//s += MIPS.Emit(MIPS.Opcodes.move, "$ra", "$s0");
var reg2 = MIPS.GetReg();
s += MIPS.Emit(MIPS.Opcodes.move, reg2, "$v0\t\t#Method return value");
if (callerTypeName != CallerType.Name)
{
s += MIPS.Emit(MIPS.Opcodes.sw, "$s2", "0($sp)");
}
//s += MIPS.Emit(MIPS.Opcodes.subu, "$sp","$sp", "4");
//SymbolTable.Symbols.Pop();
return(s);// base.GenerateCode();
}
/// <summary>
/// Build the ctor method with className: label
/// </summary>
/// <returns></returns>
public override string GenerateCode()
{
var s = "";
var t = Attributes.Count;
var reg1 = "";
if (Name.ToLower() != "main")
{
s += Name + ":\t\t\t\t#Ctor\n";
//t = (t * 4) + 8;
reg1 = MIPS.GetReg();
s += MIPS.Emit(MIPS.Opcodes.li, reg1, Size.ToString());
s += MIPS.Emit(MIPS.Opcodes.sw, reg1, "($sp)");
s += MIPS.Emit(MIPS.Opcodes.move, "$s0", "$ra");
s += MIPS.Emit(MIPS.Opcodes.jal, "makeroom");// this blows $ra
s += MIPS.Emit(MIPS.Opcodes.move, "$ra", "$s0");
s += MIPS.Emit(MIPS.Opcodes.move, reg1, "$v0");
var reg2 = MIPS.GetReg();
//put class name
s += MIPS.Emit(MIPS.Opcodes.la, reg2, Name + "_str");
s += MIPS.Emit(MIPS.Opcodes.sw, reg2, "0(" + reg1 + ")");
//put class size
s += MIPS.Emit(MIPS.Opcodes.li, reg2, Size.ToString());
s += MIPS.Emit(MIPS.Opcodes.sw, reg2, "4(" + reg1 + ")");
int offset = 4;
foreach (var item in Attributes)
{
offset += 4;
if (item.Value.GetType().Name.ToLower() == "int" || item.Value.GetType().Name.ToLower() == "bool" || item.Value.GetType().Name.ToLower() == "string")
{
//s += "# this value goes here? " + item.Value.Name + " " + 4 + " " + "\n";
s += item.Value.GenerateCode();
var i = MIPS.LastReg();
s += MIPS.Emit(MIPS.Opcodes.sw, i, offset + "(" + reg1 + ")");
}
else
{
s += "#allocating space for " + item.Value.Name + " " + item.Value.GetType().Size + " " + "\n";
s += item.Value.GenerateCode();
// not sure about this :S
var i = MIPS.LastReg();
s += MIPS.Emit(MIPS.Opcodes.sw, i, offset + "(" + reg1 + ")");
}
}
if (Parent != null && Parent.Name != "Object")
{
s += MIPS.Emit(MIPS.Opcodes.move, "$s1", "$ra"); // todo save this int the stack
s += MIPS.Emit(MIPS.Opcodes.jal, Parent.Name); // this blows $ra
s += MIPS.Emit(MIPS.Opcodes.move, "$ra", "$s1");
var i = MIPS.GetReg();
s += MIPS.Emit(MIPS.Opcodes.move, i, "$v0"); //copy your parent addres form v0 to a new reg
s += MIPS.Emit(MIPS.Opcodes.sw, i, offset + 4 + "(" + reg1 + ")"); // then coy it to the last position of you
}
s += MIPS.Emit(MIPS.Opcodes.move, "$v0", reg1);
s += MIPS.Emit(MIPS.Opcodes.jr);
//if (Parent != null && Parent.Name != "Object")
// s += Parent.GenerateCode();
}
else
{
//main class attribute should be on the heap?
}
foreach (var item in Methods)
{
s += item.Value.GenerateCode();
}
return(s);// +base.GenerateCode();
}