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