3-450
INSTRUCTION SET REFERENCE
MULPS—Packed Single-FP Multiply
Description
The MULPS instructions multiply the packed SP FP numbers of both their operands.
Figure 3-50. Operation of the MULPS Instruction
Operation
DEST[31-0] = DEST[31-0] * SRC/m128[31-0];
DEST[63-32] = DEST[63-32] * SRC/m128[63-32];
DEST[95-64] = DEST[95-64] * SRC/m128[95-64];
DEST[127-96] = DEST[127-96] * SRC/m128[127-96];
Intel C/C++ Compiler Intrinsic Equivalent
__m128 _mm_mul_ps(__m128 a, __m128 b)
Multiplies the four SP FP values of a and b.
OpcodeInstruction
Description
0F,59,/rMULPS xmm1, xmm2/m128 Multiply packed SP FP numbers in XMM2/Mem to XMM1.
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Xmm1
Xmm2/
m128
Xmm1
MULPS xmm1, xmm2/m128
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