jecxz

Jump if ECX is Zero

JECXZ rel

Jumps if ECX register is 0.

Details

The Jump if ECX is Zero instruction jumps if ECX register is 0.

Pseudocode Operation

IF condition THEN RIP <- target

Example

JECXZ rel

Encoding

Binary Layout
E3
+0
 
Format Legacy
Opcode E3
Extension Base

Operands

  • dest
    Relative branch offset