verw

Verify Segment for Writing

VERW r/m16

Checks if segment can be written; sets ZF.

Details

The Verify Segment for Writing instruction checks if segment can be written; sets ZF.

Pseudocode Operation

// Checks if segment can be written; sets ZF

Example

VERW bx

Encoding

Binary Layout
0F
+0
00
+1
ModRM
+2
 
Format System
Opcode 0F 00 /5
Extension System

Operands

  • dest
    16-bit register or memory