Hardware Reference
In-Depth Information
Table 3.8
Pitch/latency of FE-category instructions of SH-3E, SH-4, and SH-X
Single-precision
SH-3E
SH-4
SH-X
Double-precision
SH-4
SH-X
FADD FRm, FRn
1/2
1/3
1/3
FADD DRm, DRn
6/8
1/5
FSUB FRm, FRn
1/2
1/3
1/3
FSUB DRm, DRn
6/8
1/5
FMUL FRm, FRn
1/2
1/3
1/5
FMUL DRm, DRn
6/8
3/7
FDIV FRm, FRn
13/14
2 (10)/12
2 (13)/17
FDIV DRm, DRn
5 (23)/25
2 (28)/32
FSQRT FRn
13/14
2 (9)/11
2 (13)/17
FSQRT DRm, DRn
5 (22)/24
2 (28)/32
FCMP/EQ FRm, FRn
1/1
1/2
1/2
FCMP/EQ DRm, DRn
2/2
1/2
FCMP/GT FRm, FRn
1/1
1/2
1/2
FCMP/EQ DRm, DRn
2/2
1/2
FLOAT FPUL, FRn
1/2
1/3
1/3
FLOAT DRn
2/4
1/5
FTRC FRm, FPUL
1/2
1/3
1/3
FTRC DRm, FPUL
2/4
1/5
FMAC FR0, FRm, FRn
1/2
1/3
1/5
FCNVSD FPUL, FRn
2/4
1/5
FIPR FVm, FVn, FRn + 3
-
1/4
1/5
FCNVDS DRm, FPUL
2/4
1/5
FTRV XMTRX, FVn
-
4/7
4/8
FSRRA FRn
-
-
1 (3)/5
FSCA FPUL, DRn
-
-
3 (5)/7
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