參數(shù)資料
型號(hào): INSTRUCTIN603EWP
英文描述: Optimizing the Instruction Execution on the 603e
中文描述: 優(yōu)化了603e的指令執(zhí)行
文件頁數(shù): 51/54頁
文件大?。?/td> 325K
代理商: INSTRUCTIN603EWP
RISC Microprocessor Division
Page 51
Instruction Interactions
Dependency Stall
A lwzx
B add
C lis
D stwu
E ori
F cmpw
r13,r14,r15
r26,r27,r13
r20,0xDEAD
r16,4(r17)
r20,r20,0xBEEF
r26,r20
A lwzx
B lis
C stwu
D ori
E add
F cmpw
r13,r14,r15
r20,0xDEAD
r16,4(r17)
r20,r20,0xBEEF
r26,r27,r13
r26,r20
1
2
3
4
5
stw
ori
lis
stw
cmp
add
add
lis
ori
lwz
lwz
add
stw
cmp
1
2
3
4
5
ori
stw
add
lis
lis
ori
cmp
lwz
lwz
stw
add
Completion
Queue
Completion
Queue
clock cycle
clock cycle
ORIGINAL SEQUENCE
REORDERED SEQUENCE
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