public string getfunct(string instruction)
{
global temp = new global();
if (instruction == "add")
{
return(temp.getBinary(32));
}
if (instruction == "and")
{
return(temp.getBinary(36));
}
if (instruction == "sub")
{
return(temp.getBinary(34));
}
if (instruction == "nor")
{
return(temp.getBinary(39));
}
if (instruction == "or")
{
return(temp.getBinary(37));
}
return(temp.getBinary(42));
}
public R(List <string> arguments)
{
string instruction = arguments[0];
string reg1 = arguments[1];
string reg2 = arguments[2];
string reg3 = arguments[3];
if (reg1.Last() == ',')
{
reg1 = reg1.Substring(0, reg1.Length - 1);
}
if (reg2.Last() == ',')
{
reg2 = reg2.Substring(0, reg2.Length - 1);
}
if (reg3.Last() == ',')
{
reg3 = reg3.Substring(0, reg3.Length - 1);
}
global temp = new global();
string r1 = temp.numofreg(reg2), r2 = temp.numofreg(reg3), r3 = temp.numofreg(reg1);
string fun = getfunct(instruction);
mask += "000000";
mask += r1;
mask += r2;
mask += r3;
mask += "00000";
mask += fun;
}
public string getfunct(string instruction)
{
global temp = new global();
if (instruction == "add")
{
return(global.getBinary(32, 6));
}
if (instruction == "and")
{
return(global.getBinary(36, 6));
}
if (instruction == "sub")
{
return(global.getBinary(34, 6));
}
if (instruction == "nor")
{
return(global.getBinary(39, 6));
}
if (instruction == "or")
{
return(global.getBinary(37, 6));
}
return(global.getBinary(42, 6));
}
public I(List <string> arguments)
{
global temp = new global();
if (arguments[0] == "lw" || arguments[0] == "sw")
{
mask += getfunct(arguments[0]);
string s = arguments[2], t = "";
int st = 0;
for (int i = 0; i < arguments[2].Length; i++)
{
if (arguments[2][i] == '(')
{
st = i + 1;
break;
}
}
for (; arguments[2][st] != ')'; st++)
{
t += arguments[2][st];
}
mask += temp.numofreg(t);
mask += temp.numofreg(arguments[1]);
t = "";
for (int i = 0; i < arguments[2].Length && arguments[2][i] != '('; i++)
{
t += arguments[2][i];
}
if (t.Length > 1 && t[1] == 'x')
{
t = t.Substring(2, t.Length - 2);
}
int num = Int32.Parse(t, System.Globalization.NumberStyles.HexNumber);
mask += global.getBinary(num, 16);
}
else
{
mask += getfunct(arguments[0]);
mask += temp.numofreg(arguments[2]);
mask += temp.numofreg(arguments[1]);
if (arguments[0] == "addi")
{
mask += global.getBinary(int.Parse(arguments[3]), 16);
}
else
{
mask += global.label_address[arguments[3]];
}
}
}
public string getfunct(string instruction)
{
global temp = new global();
if (instruction == "addi")
{
return(global.getBinary(8, 6));
}
if (instruction == "lw")
{
return(global.getBinary(35, 6));
}
if (instruction == "sw")
{
return(global.getBinary(43, 6));
}
if (instruction == "beq")
{
return(global.getBinary(4, 6));
}
return(global.getBinary(5, 6));
}