cmpsq

Compare String Quadword

CMPSQ

Compares quadword at [RSI] with [RDI].

Details

The Compare String Quadword instruction compares quadword at [RSI] with [RDI].

Pseudocode Operation

Flags <- Memory[RSI] - Memory[RDI]
RSI += size; RDI += size

Example

CMPSQ

Encoding

Binary Layout
48
+0
A7
+1
 
Format Legacy
Opcode 48 A7
Extension Base (64-bit)

Operands