pmulhw

Packed Multiply High Signed

PMULHW xmm1, xmm2/m128

Multiplies signed words, keeps high 16 bits.

Details

The Packed Multiply High Signed instruction multiplies signed words, keeps high 16 bits.

Pseudocode Operation

// Multiplies signed words, keeps high 16 bits

Example

PMULHW xmm1, xmm2/m128

Encoding

Binary Layout
66
+0
0F
+1
E5
+2
 
Format SSE2
Opcode 66 0F E5
Extension SSE2

Operands

  • dest
    XMM
  • src
    XMM/Mem