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The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
book

The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition

by Lyla B. Das
May 2024
Intermediate to advanced content levelIntermediate to advanced
665 pages
23h 2m
English
Pearson India
Content preview from The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
630 APPENDIX
FMUL Floating point multiply
FMULP Floating point multiply and pop
variations/
operand 8087 287 387 486 Pentium
fmul reg s 90-105 90-105 29-52 16 3/1 FX
fmul reg 130-145 130-145 46-57 16 3/1 FX
fmul mem32 (110-125)+EA 110-125 27-35 11 3/1 FX
fmul mem64 (154-168)+EA 154-168 32-57 14 3/1 FX
fmulp reg s 94-108 94-108 29-52 16 3/1 FX
fmulp reg 134-148 134-148 29-57 16 3/1 FX
s = register with 40 trailing zeros in fraction
FNOP no operation
8087 287 387 486 Pentium
10-16 10-16 12 3 1 NP
FPATAN Partial arctangent
8087 287 387 486 Pentium
250-800 250-800 314-487 218-303 17-173
FPREM Partial remainder
FPREM1 Partial remainder (IEEE compatible, 387+)
variations 8087 287 387 486 Pentium
fprem 15-190 15-190 ...
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Publisher Resources

ISBN: 9781282663169