/// <summary>
/// Add an entry to the reorder buffer
/// </summary>
/// <param name="instr">the instruction you need to add an entry for</param>
public void addEntry(Instruction instr)
{
if (Config.numReorderBufferEntries - this.buffer.Count > 0)
{
RobEntry newEntry = new RobEntry();
newEntry.busy = true;
newEntry.finished = false;
newEntry.instruction = instr;
newEntry.valid = this.isNewEntryValid();
newEntry.renameReg = CPU.rrf.findFirstEmptySlot();
this.buffer.Enqueue(newEntry);
}
}
/// <summary>
/// Add an entry to the reorder buffer
/// </summary>
/// <param name="instr">the instruction you need to add an entry for</param>
public void addEntry(Instruction instr)
{
if (Config.numReorderBufferEntries - this.buffer.Count > 0)
{
RobEntry newEntry = new RobEntry();
newEntry.busy = true;
newEntry.finished = false;
newEntry.instruction = instr;
newEntry.valid = this.isNewEntryValid();
newEntry.renameReg = CPU.rrf.findFirstEmptySlot();
this.buffer.Enqueue(newEntry);
}
}
public void runCycle()
{
if (CPU.rob.buffer.Count != 0)
{
while (CPU.rob.buffer.Count > 0 && CPU.rob.buffer.Peek().finished == true)
{
RobEntry robEntry = CPU.rob.buffer.Dequeue();
foreach (ArfEntry arfEntry in CPU.arf.regFile)
{
if (arfEntry.tag == robEntry.renameReg)
{
arfEntry.busy = false;
}
}
//TODO: Make sure that the reservation stations are updated
CPU.rrf.rrfTable[robEntry.renameReg].busy = false;
Statistics.instructionsCompleted++;
if (robEntry.instruction.isLastInstruction)
{
CPU.lastInstructionCompleted = true;
}
}
}
}