Iw-Rtype结构冲突(RF写端口冲突)消除 ·规定：R-type指令在WB段完成 Load Ifetch Reg Exec Mem W Load Ifetch Reg Exec Mem Wr R-type Ifetch Reg Exec Wr R-type Ifetch Reg Exec Mem Wr Store Ifetch Reg Exec Mem load Reg2,A WB Program Time (in clock cycles) F ID EX WB execution CC1 CC2 CC3 CC4 CC5 CC6 CC7 CC8 CC9 MEM order (in instructions) 1dx10,40x1j Register file ubx11.2.x3 mul Reg3,Reg4,Reg5 add x12.x3.x4 WB F D EX MEM WB 1dx13.48(x1) cycle time time add x14.x5.x6 RF“两读一写”，写端口冲突！lw-Rtype结构冲突（RF写端口冲突）消除 • 规定：R-type指令在WB段完成 RF“两读一写”，写端口冲突！