/// <summary>
/// Checks the Execution unit to see if it is finished, if so moves the instruction
/// and clears the unit.
/// </summary>
/// <param name="unit"></param>
/// <returns>True if the unit is finished, false otherwise</returns>
private bool handleUnitCycle(ExecutionUnit unit)
{
// First make sure that there is an instruction in there
if (unit.busy)
{
// Then run the cycle and see if it finishes
if (unit.runCycle())
{
// TODO: Move the Cycle / Update the RRF
// The the reservation station entry should hold the RRF entry index so taht we know which one to update
int rrfEntryIndex = CPU.rob.executionFinished(unit.entry);
CPU.rrf.executionFinished(rrfEntryIndex);
// Update the Reservation Stations
updateReservationStation(rrfEntryIndex, CPU.issueStage.branchStation);
updateReservationStation(rrfEntryIndex, CPU.issueStage.fpStation);
updateReservationStation(rrfEntryIndex, CPU.issueStage.integerStation);
updateReservationStation(rrfEntryIndex, CPU.issueStage.memStation);
updateReservationStation(rrfEntryIndex, CPU.issueStage.multDivStation);
// Tell Everyone that the reservation station entry is now available
unit.entry.busy = false;
return(true);
}
}
return(false);
}
/// <summary>
/// Checks the Execution unit to see if it is finished, if so moves the instruction
/// and clears the unit.
/// </summary>
/// <param name="unit"></param>
/// <returns>True if the unit is finished, false otherwise</returns>
private bool handleUnitCycle(ExecutionUnit unit)
{
// First make sure that there is an instruction in there
if (unit.busy)
{
// Then run the cycle and see if it finishes
if (unit.runCycle())
{
// TODO: Move the Cycle / Update the RRF
// The the reservation station entry should hold the RRF entry index so taht we know which one to update
int rrfEntryIndex = CPU.rob.executionFinished(unit.entry);
CPU.rrf.executionFinished(rrfEntryIndex);
// Update the Reservation Stations
updateReservationStation(rrfEntryIndex, CPU.issueStage.branchStation);
updateReservationStation(rrfEntryIndex, CPU.issueStage.fpStation);
updateReservationStation(rrfEntryIndex, CPU.issueStage.integerStation);
updateReservationStation(rrfEntryIndex, CPU.issueStage.memStation);
updateReservationStation(rrfEntryIndex, CPU.issueStage.multDivStation);
// Tell Everyone that the reservation station entry is now available
unit.entry.busy = false;
return true;
}
}
return false;
}