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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 />

SUBPS<br />

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

Subtracts each packed single-precision floating-point value in the second source<br />

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

first source operand and writes the result of each subtraction in the corresponding<br />

doubleword of the destination (first source). The first source/destination operand is an<br />

XMM register. The second source operand is another XMM register or 128-bit memory<br />

location.<br />

Mnemonic Opcode Description<br />

SUBPS xmm1, xmm2/mem128 0F 5C /r Subtracts packed single-precision floating-point values in an XMM<br />

register or 128-bit memory location from packed single-precision<br />

floating-point values in another XMM register and writes the result in<br />

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 />

subtract<br />

subtract<br />

subtract<br />

subtract<br />

subps.eps<br />

Related Instructions<br />

SUBPD, SUBSD, SUBSS<br />

rFLAGS Affected<br />

None<br />

372 SUBPS

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