R-type指令完成时间：load-Rtype R-type指令4个周期完成？ -例：当前指令为w,下一条指令为R-type。( CC5? Program Time (in clock cycles)- Load Ifetch Reg Exec Mem Wr execution CC1 CC2 CC3 CC4 CC5 CC6 CC7 CC8 CC9 order (in instructions) R-type Ifetch Reg Exec W dx10,400x1) load Reg2,A WB F ID EX WB sub x11.x2.x3 MEM add x12.x3.x4 Register file mul Reg3,Reg4,Reg5 1dx13.48(x1) WB F ID EX MEM WB add x14,x5.x6 cycle time time 33 R-type指令完成时间：load-Rtype • R-type指令4个周期完成？ – 例：当前指令为 lw，下一条指令为R-type。CC5?