x86 Assembly Language Reference Manual

Miscellaneous Instructions

The instructions documented in this section provide a number of useful functions.

Table 3–12 Miscellaneous Instructions

Solaris Mnemonic 

Intel/AMD Mnemonic 

Description 

Notes 

cpuid

CPUID

processor identification 

 

lea{wlq}

LEA

load effective address 

leaq valid only under -xarch=amd64

nop

NOP

no operation 

 

ud2

UD2

undefined instruction 

 

xlat

XLAT

table lookup translation 

 

xlatb

XLATB

table lookup translation