大家好 想请教一个问题 forwarding的侦测码中有分为Ex hazard跟mem hazard (分别是看执行指令与下一、下下一指令有没有hazard) EX Hazard if (EX/MEM.RegWrite and (EX/MEM.RegisterRd ≠ 0) and (EX/MEM.RegisterRd == ID/EX.RegisterRs)) ForwardA = 10 if (EX/MEM.RegWrite and (EX/MEM.RegisterRd ≠ 0) and (EX/MEM.RegisterRd == ID/EX.RegisterRt)) ForwardB = 10 MEM Hazard if (MEM/WB.RegWrite and (MEM/WB.RegisterRd ≠ 0) and (MEM/WB.RegisterRd == ID/EX.RegisterRs)) and not(Ex Hazard)ForwardA = 01 if (MEM/WB.RegWrite and (MEM/WB.RegisterRd ≠ 0) and (MEM/WB.RegisterRd == ID/EX.RegisterRt)) and not(Ex Hazard) ForwardB = 01