IBM PowerPC 604 User Manual page 276

Table 6-2. Instruction Execution Timing (Continued)
Instruction Unit
Cycle (cycle) Serlallzatlon
mcncr MCIU 3 Execute
mfcr MCIU 3
Execute
mffs FPU 3
-
mfmsr
MCIU 3 Execute
mftb MCIU 3 Execute
mfspr LR/CTR
MCIU 3 Execute
mfspr (others) MCIU 3 Execute
mtcrf (O/multlple bit) MCIU 1 DispatclVExecute
mtcrf (single bit) SCIU 1
-
mtfsbO FPU
3
-
mtfsb1 FPU 3
-
mtfsf FPU 3
-
mtfsfl FPU 3
-
-
mtmsr MCIU 1
Execute
mtspr (LR/CTR) MCIU 1
Dispatch
mtspr(XER) MCIU
1
Complete
2
mtspr (others)
MCIU 1 Execute
mulhw MCIU 4(3)
-
mulhwu MCIU 4(3)
-
mum MCIU 3
-
mullw MCIU 4(3)
-
nand SCIU
1
-
neg SCIU
1
-
nor SCIU 1
-
or SCIU 1
-
ore SCIU 1
-
orl SCIU
1
-
orls
SCIU
1
-
rfl
Completion
-
Post dispatch
rlwlml
SCIU
1
-
rlwlnm
SCIU 1
-
rlWnm SCIU
1
-
6-50
PowerPC 604 RISC Mlcroprocesaor User's Manual