MC68LC040RC25A Datasheet, PDF (327/442 Pages) Freescale Semiconductor, Inc – M68040 Users Manual

Freescale Semiconductor, Inc.
10.7.3 Timings in the Floating-Point Unit (Continued)
Instruction
FDIV
FSQRT
FMOVE,
FABS,
FNEG
FMOVE
Opclass Size Precision Operands
2
S,D
Any
— ,NAN
2
X
Any
Norm,Norm
2
X
Any
— ,Zero
2
—
Any
— ,Inf
2
X
Any
— ,NAN
0
—
Any
Norm
0
—
Any
(Zero|Inf|NAN)
2
S,D
Any
Norm
2
S,D
Any
(Zero|Inf|NAN)
2
X
Any
Norm
2
X
Any
(Zero|Inf|NAN)
0
—
X
(Norm|Zero|Inf)
0
—
X
NAN
0
—
S,D
Norm
0
—
S,D
(Zero|Inf)
0
—
S,D
NAN
2
S
Any (Norm|Zero|Inf)
2
S
Any
NAN
2
D
D,X (Norm|Zero|Inf)
2
D
D,X
NAN
2
D
S
Norm
2
D
S
(Zero|Inf)
2
D
S
NAN
2
X
X
(Norm|Zero|Inf)
2
X
X
NAN
2
X
S,D
Norm
2
X
S,D
(Zero|Inf)
2
X
S,D
NAN
2
B,W
Any
(+Norm|Zero)
2
L
D,X
(+Norm|Zero)
2
L
S
(+Norm|Zero)
2
B,W
Any
—Norm
2
L
D,X
—Norm
2
L
S
—Norm
3
S,D
Any
Any
3
X
Any
Any
3
B,W,L Any
+(Norm|Zero)
3
B,W,L Any
–(Norm|Zero)
Conversion
4
3(4)
5
5
5
2(3)
4
2(3)
4
3(4)
5
2
3
5
3
4
3
4
3
4
5
4
5
4
5
6
5
6
1.5(11)
1.5(11)
1.5(12.5)
1.5(11.5)
1.5(11.5)
1.5(13)
3
4
3(9)
3(10)
Execution
0
37.5
0
0
0
103
0
103
0
103
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.5
4.5
4.5
5
5
5
0
0
1.5
1.5
Normalization
0
2(3)
0
0
0
2(3)
0
2(3)
0
2(3)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
0
0
3.5
4.5
10-36
M68040 USER’S MANUAL
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