public void fetch()
{
PcDecode = PC + 4;
IrDecode = instructionSet[PC];
rs = peaceOfString(IrDecode, 7, 10);
rt = peaceOfString(IrDecode, 11, 15);
mipsTable[xDim, yDim] = PC.ToString(); //0
mipsTable[++xDim, yDim] = PcDecode.ToString(); //1
mipsTable[++xDim, yDim] = IrDecode; //2
xDim++; yDim++;
}
public void calculateCycles(RichTextBox userCodeData, DataGridView pipRegGrid, DataGridView mipsRegGrid, TextBox pcTextBox)
{
fillInstructionSet(userCodeData);
if (!instructionSet.ContainsKey(PC) || instructionSet[PC] == "00000000000000000000000000000000")
{
if (gabCycles == 0)
{
return;
}
else
{
gabCycles--;
displayPiplineRegisters(pipRegGrid, columnToDisplay++);
return;
}
}
if (peaceOfString(instructionSet[PC], 0, 5) == "000100")
{
PcDecode = PC + 4;
IrDecode = instructionSet[PC];
mipsTable[xDim, yDim] = PC.ToString(); //0
mipsTable[++xDim, yDim] = PcDecode.ToString(); //1
mipsTable[++xDim, yDim] = IrDecode; //2
xDim = 0; yDim++;
displayPiplineRegisters(pipRegGrid, columnToDisplay++);
if (binaryToDecimal(peaceOfString(instructionSet[PC], 6, 10)) ==
binaryToDecimal(peaceOfString(instructionSet[PC], 11, 15)))
{
desiredJumpPC = PC + (binaryToDecimal(peaceOfString(instructionSet[PC], 16, 31)) * 4) + 4;
desiredLevel = 1;
}
PC += 4;
return;
}
if (desiredJumpPC == PC || desiredJumpPC == -1)
{
fetch();
decode();
excute();
memory();
desiredJumpPC = -1;
desiredLevel = -1;
}
else
{
if (desiredLevel == 1)
{
fetch();
decode();
excute();
xDim = 0;
yDim -= 2;
}
else if (desiredLevel == 2)
{
fetch();
decode();
xDim = 0;
yDim -= 1;
}
else if (desiredLevel == 3)
{
fetch();
xDim = 0;
}
else
{
PC = desiredJumpPC;
fetch();
decode();
excute();
memory();
}
desiredLevel++;
}
displayPiplineRegisters(pipRegGrid, columnToDisplay++);
update(mipsRegGrid, pcTextBox);
PC += 4;
}
