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AMD 64-Bit Technology - ECE User Home Pages

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<strong>AMD</strong> <strong>64</strong>-<strong>Bit</strong> <strong>Technology</strong> 26568—Rev. 3.02—August 2002<br />

MULPS<br />

Multiply Packed Single-Precision Floating-Point<br />

Multiplies each of the four packed single-precision floating-point values in first source<br />

operand by the corresponding packed single-precision floating-point value in the<br />

second source operand and writes the result of each multiplication operation in the<br />

corresponding doubleword of the destination (first source). The first<br />

source/destination operand is an XMM register. The second source operand is another<br />

XMM register or 128-bit memory location.<br />

Mnemonic Opcode Description<br />

MULPS xmm1, xmm2/mem128 0F 59 /r Multiplies packed single-precision floating-point values in an XMM<br />

register and another XMM register or 128-bit memory location and<br />

writes the results in the destination XMM register.<br />

xmm1<br />

xmm2/mem128<br />

127 96 95 <strong>64</strong> 63 32 31<br />

0<br />

127 96 95 <strong>64</strong> 63 32 31<br />

0<br />

multiply<br />

multiply<br />

multiply<br />

multiply<br />

mulps.eps<br />

Related Instructions<br />

MULPD, MULSD, MULSS, PFMUL<br />

rFLAGS Affected<br />

None<br />

192 MULPS

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