6-9
INSTRUCTION SET SUMMARY
6.2.1.9.FLAG CONTROL INSTRUCTIONS
STC
Set carry flag
CLC
Clear the carry flag
CMC
Complement the carry flag
CLD
Clear the direction flag
STD
Set direction flag
LAHF
Load flags into AH register
SAHF
Store AH register into flags
PUSHF/PUSHFD
Push EFLAGS onto stack
POPF/POPFD
Pop EFLAGS from stack
STI
Set interrupt flag
CLI
Clear the interrupt flag
6.2.1.10.SEGMENT REGISTER INSTRUCTIONS
LDS
Load far pointer using DS
LES
Load far pointer using ES
LFS
Load far pointer using FS
LGS
Load far pointer using GS
LSS
Load far pointer using SS
6.2.1.11.MISCELLANEOUS INSTRUCTIONS
LEA
Load effective address
NOP
No operation
UB2
Undefined instruction
XLAT/XLATB
Table lookup translation
CPUID
Processor Identification
