Intel 386 User Manual page 641

Intel386™ EX EMBEDDED MICROPROCESSOR USER'S MANUAL
Table E-1. Instruction Set Summary (Sheet 3 of 19)
Instruction
CLD = Clear direction
1 1 1 1 1 1 0 0
flag
CLI = Clear interrupt
1 1 1 1 1 0 1 0
enable flag
CLTS = Clear task
0 0 0 0 1 1 1 1
switched flag
CMC = Complement
1 1 1 1 0 1 0 1
carry flag
LAHF = Load AH into
1 0 0 1 1 1 1 1
flag
POPF = Pop flags 1 0 0 1 1 1 0 1
PUSHF = Push flags 1 0 0 1 1 1 0 0
SAHF = Store AH into
1 0 0 1 1 1 1 0
flags
STC = Set carry flag 1 1 1 1 1 0 0 1
STD = Set direction flag 1 1 1 1 1 1 0 1
STI = Set interrupt
1 1 1 1 1 0 1 1
enable flag
ARITHMETIC INSTRUCTIONS
ADD = Add
register to register 0 0 0 0 0 0 d w
register to memory 0 0 0 0 0 0 0 w
memory to register 0 0 0 0 0 0 1 w
immediate to
1 0 0 0 0 0 s w
register/memory
immediate to accumu-
0 0 0 0 0 1 0 w
lator (short form)
ADC = Add with carry
register to register 0 0 0 1 0 0 d w
register to memory 0 0 0 1 0 0 0 w
memory to register 0 0 0 1 0 0 1 w
immediate to
1 0 0 0 0 0 s w
register/memory
immediate to accumu-
0 0 0 1 0 1 0 w
lator (short form)
INC = Increment
register/memory 1 1 1 1 1 1 1 w
register (short form) 0 1 0 0 0 reg
E-4
Format
0 0 0 0 0 1 1 0
mod reg r/m
mod reg r/m
mod reg r/m
mod 0 0 0 r/m immediate data
immediate data
mod reg r/m
mod reg r/m
mod reg r/m
mod 0 1 0 r/m immediate data
immediate data
mod 0 0 0 r/m
Clock Count Notes
Real Pro- Real
Ad- tected Ad-
dress Virtual dress
Mode Ad- Mode
or dress or
Virtual Mode Virtual
8086 8086
Mode Mode
2 2
8 8
5 5 c
2 2
2 2
5 5 b
4 4 b
3 3
2 2
8 8
2 2
7** 7** b
6* 6* b
2/7** 2/7** b
2 2
2 2
7** 7** b
6* 6* b
2/7** 2/7** b
2 2
2/6** 2/6** b
2 2
Pro-
tected
Virtual
Ad-
dress
Mode
m
l
h, n
h
m
h
h
h
h
h
h
h