Vector Floating-Point Division

image from book

It was discussed in a previous chapter that a difference is the summation of a term and the inverse of a second term using the additive inverse algebraic law. A division is also a play on an equation transformation: a multiplication of the dividend by the reciprocal of the divisor.

image from book

Some instruction sets, such as 3DNow!, do not directly support floating-point division but do support the product of a reciprocal.

(Vector) SPFP Division

Mnemonic

P

PII

K6

3D!

3Mx+

SSE

SSE2

A64

SSE3

E64T

DIVPS

         



32.64-Bit 80X86 Assembly Language Architecture
32/64-Bit 80x86 Assembly Language Architecture
ISBN: 1598220020
EAN: 2147483647
Year: 2003
Pages: 191

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