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2019-05-25 10:41:52 14 举报
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MIPS多周期处理器状态机图
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大纲/内容
SHIFT=1
RType&~JR
MULen=1
7:ALUWriteback
20:MULWriteback
BEQ
4:MemWriteback
IorD=1
9:ADDIExecute
12:BranchBNE
ORI
mul_cnt<=3
ALUSrcA=1ALUSrcB=2ALUOp=5
MemtoReg=1MemWrite
PCSrc=3PCWrite
SW
RegDst=1MemtoReg=3
ALUSrcA=1ALUOp=1PCSrc=1Branch
6:Execute
ALUSrcB=3
SLTI
15:SLTIExecute
14:ORIExecute
ADDI
RegDst=1RegWrite
ALUSrcA=1ALUSrcB=2ALUOp=3
18:MULReady
BNE
JR
ALUSrcA=1ALUOp=1
8:Branch
JAL
ALUSrcA=1ALUSrcB=2ALUOp=4
RegDst=2MemtoReg=2RegWrite
11:Jump
13:ANDIExecute
0:Fetch
19:MULExecute
3:MemRead
ALUSrcA=1ALUSrcB=2
ALUSrcB=1IRWritePCWrite
ALUSrcA=1ALUOp=1PCSrc=1BranchBNE
10:ADDIWriteback
ANDI
J
LW or SW
5:MemWrite
1:Decode
2:MemAdr
MUL
IorD=1MemWrite
17:JALExecute
LW
PCSrc=2PCWrite
16:JRExecute
RegWrite
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