CPU
2015-07-15 18:02:44 0 举报
五级流水线CPU设计图
作者其他创作
大纲/内容
RegWr
PC
WB
EX_PC_4[31:0]
EX_DatabusB[31:0]
ID_DatabusB[31:0]
CONTROL
PCWrite
Writedata
Shift left 2 bits
IF_ID_Wr
[25-21]
EX/MEM
MEM_Rback[4:0]
1MUX0
forwardA
16
MUX
EX_Rback[4:0]
MEM_PC_4[31:0]
ID_PC_4[31:0]
[15-11]
ID_DatabusA[31:0]
Hazards
Rs
+
Readdata 2
IF_PC_4[31:0]
MEM
ID_EX_Rt
MEM_AlUout[31:0]
WB_PC_4[31:0]
EX_AlUout[31:0]
ID_EX_PCSrc
EX_Shamt[4:0]
Readdata
ID_Instruct[31:0]
ID_PCSrc
2
ID_Imm[15:0]
ID/EX
WB_AlUout[31:0]
WriteData
ALUout
ID_EX_clear
Rd
IF_Instruct[31:0]
0MUX1
IF_ID_RsIF_ID_Rt
IF_ID_clear
寄存器堆
EX
数据存储器
[15-0]
Forward
ALUOut0
ID/EX.MemRead
ConBA
Write register 1
EX_Imm[15:0]
Address
IF/ID
Rt
1
ID_Shamt[4:0]
0
MEM_DatabusB[31:0]
[20-16]
Read register 1
MEM_dataMEMout[31:0]
EX_DatabusA[31:0]
[10-6]]
EXT32
EX.MEM.Rd
Readdata 1
指令存储器
MEM/WB
Read register 2
WB_dataMEMout[31:0]
forwardB
ALU
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