コード例 #1
0
ファイル: ExecutionStage.cs プロジェクト: Luiz-Monad/CISCsim
        /// <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);
        }
コード例 #2
0
ファイル: ExecutionStage.cs プロジェクト: HepaxCodex/CISCsim
        /// <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;
        }