psubsb

Packed Subtract Signed Saturate Byte (MMX)

PSUBSB mm, mm/m64

Subtracts 8 signed bytes with saturation (MMX).

Details

The Packed Subtract Signed Saturate Byte (MMX) instruction subtracts 8 signed bytes with saturation (MMX).

Pseudocode Operation

// Subtracts 8 signed bytes with saturation (MMX)

Example

PSUBSB mm, mm/m64

Encoding

Binary Layout
0F
+0
E8
+1
 
Format MMX
Opcode 0F E8
Extension MMX

Operands

  • dest
    64-bit MMX register
  • src
    64-bit MMX register or Memory operand