kortestb

OR Masks and Set Flags Byte

KORTESTB k1, k2

ORs 8-bit masks and sets EFLAGS (ZF/CF).

Details

The OR Masks and Set Flags Byte instruction oRs 8-bit masks and sets EFLAGS (ZF/CF).

Pseudocode Operation

// ORs 8-bit masks and sets EFLAGS (ZF/CF)

Example

KORTESTB k1, k2

Encoding

Binary Layout
EVEX
+0
0F
+4
98
+5
 
Format EVEX
Opcode 0F 98
Extension AVX-512DQ

Operands

  • dest
    AVX-512 opmask register (k0-k7)
  • src
    AVX-512 opmask register (k0-k7)