public ConstValue(string opRand)
{
if (opRand[0] != '$')
{
throw new Exception("Wrong argument");
}
bool isNegative = false;
string tarToken = opRand.Substring(1);
if (tarToken[0] == '-')
{
tarToken = tarToken.Substring(1);
isNegative = true;
}
var absValue = new BitValue(ProcessorModel.BIT_LENGTH, Convert.ToInt32(tarToken, 16));
if (isNegative)
{
absValue.Negate();
}
this.Value = absValue;
}
private void MakeNegation()
{
RegisterName destReg = ((AssemblerCommand.RegName)currentOpRands[0]).Value;
BitValue value = new BitValue(Parent.registers[destReg].GetValue());
value.Negate();
Parent.registers[destReg].SetValue(value);
((StatusRegister)Parent.registers[RegisterName.PS]).SetValue(value.IsNegative);
}
public int ToInt()
{
var cpy = new BitValue(this);
bool negative = cpy.IsNegative;
if (negative)
{
cpy.Negate();
}
int result = 0;
for (int i = cpy.value.Length - 1; i >= 0; i--)
{
result *= 2;
result += (cpy.value[i]) ? 1 : 0;
}
return(result * ((negative) ? -1 : 1));
}