vpmovdb

Truncate Doubleword to Byte

VPMOVDB xmm1/m128 {k1}, zmm2

Down-converts 32-bit integers to 8-bit.

Details

The Truncate Doubleword to Byte instruction down-converts 32-bit integers to 8-bit.

Pseudocode Operation

// Down-converts 32-bit integers to 8-bit

Example

VPMOVDB xmm1/m128, zmm2

Encoding

Binary Layout
EVEX
+0
F3
+4
0F
+5
38
+6
31
+7
 
Format EVEX
Opcode F3 0F 38 31
Extension AVX-512F

Operands

  • dest
    128-bit XMM SIMD register or Memory operand
  • src
    512-bit ZMM AVX-512 register