Single Cycle, Multiple Cycle, vs. Pipeline
{"Image DocumentName": "Single Cycle, Multiple Cycle, vs. Pipeline", "Image ImageDescription": "Clk. Single Cycle Implementation: Load. Store. Waste. Cycle 1. Cycle 2. Cycle 3. Cycle 4. Cycle 5. Cycle 6. Cycle 7. Cycle 8. Cycle 9. Cycle 10. Clk. Multiple Cycle Implementation: Load. Store. R-type. Ifetch. Reg. Exec. Mem. Wr. Ifetch. Reg. Exec. Mem. Ifetch. Here are the timing diagrams showing the differences between the single cycle, multiple cycle, and pipeline implementations. For example, in the pipeline implementation, we can finish executing the Load, Store, and R-type instruction sequence in seven cycles. In the multiple clock cycle implementation, however, we cannot start executing the store until Cycle 6 because we must wait for the load instruction to complete. Similarly, we cannot start the execution of the R-type instruction until the store instruction has completed its execution in Cycle 9. In the Single Cycle implementation, the cycle time is set to accommodate the longest instruction, the Load instruction. Consequently, the cycle time for the Single Cycle implementation can be five times longer than the multiple cycle implementation. But may be more importantly, since the cycle time has to be long enough for the load instruction, it is too long for the store instruction so the last part of the cycle here is wasted. +2 = 77 min. (X:57) Pipeline Implementation: Load. Ifetch. Reg. Exec. Mem. Wr. Store. Ifetch. Reg. Exec. Mem. Wr. R-type. Ifetch. Reg. Exec. Mem. Wr.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}