![](http://datasheet.mmic.net.cn/280000/FEB-88_datasheet_16051035/FEB-88_28.png)
8088
8086/8088 Instruction Set Summary
(Continued)
Mnemonic and
Description
Instruction Code
LOGIC
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
NOT
e
Invert
1 1 1 1 0 1 1 w
mod 0 1 0 r/m
SHL/SAL
e
Shift Logical/Arithmetic Left
1 1 0 1 0 0 v w
mod 1 0 0 r/m
SHR
e
Shift Logical Right
1 1 0 1 0 0 v w
mod 1 0 1 r/m
SAR
e
Shift Arithmetic Right
1 1 0 1 0 0 v w
mod 1 1 1 r/m
ROL
e
Rotate Left
1 1 0 1 0 0 v w
mod 0 0 0 r/m
ROR
e
Rotate Right
1 1 0 1 0 0 v w
mod 0 0 1 r/m
RCL
e
Rotate Through Carry Flag Left
1 1 0 1 0 0 v w
mod 0 1 0 r/m
RCR
e
Rotate Through Carry Right
1 1 0 1 0 0 v w
mod 0 1 1 r/m
AND
e
And:
Reg./Memory and Register to Either
0 0 1 0 0 0 d w
mod reg r/m
Immediate to Register/Memory
1 0 0 0 0 0 0 w
mod 1 0 0 r/m
data
data if w
e
1
Immediate to Accumulator
0 0 1 0 0 1 0 w
data
data if w
e
1
TEST
e
And Function to Flags. No Result:
Register/Memory and Register
1 0 0 0 0 1 0 w
mod reg r/m
Immediate Data and Register/Memory
1 1 1 1 0 1 1 w
mod 0 0 0 r/m
data
data if w
e
1
Immediate Data and Accumulator
1 0 1 0 1 0 0 w
data
data if w
e
1
OR
e
Or:
Reg./Memory and Register to Either
0 0 0 0 1 0 d w
mod reg r/m
Immediate to Register/Memory
1 0 0 0 0 0 0 w
mod 0 0 1 r/m
data
data if w
e
1
Immediate to Accumulator
0 0 0 0 1 1 0 w
data
data if w
e
1
XOR
e
Exclusive or:
Reg./Memory and Register to Either
0 0 1 1 0 0 d w
mod reg r/m
Immediate to Register/Memory
1 0 0 0 0 0 0 w
mod 1 1 0 r/m
data
data if w
e
1
Immediate to Accumulator
0 0 1 1 0 1 0 w
data
data if w
e
1
STRING MANIPULATION
REP
e
Repeat
1 1 1 1 0 0 1 z
MOVS
e
Move Byte/Word
1 0 1 0 0 1 0 w
CMPS
e
Compare Byte/Word
1 0 1 0 0 1 1 w
SCAS
e
Scan Byte/Word
1 0 1 0 1 1 1 w
LODS
e
Load Byte/Wd to AL/AX
1 0 1 0 1 1 0 w
STOS
e
Stor Byte/Wd from AL/A
1 0 1 0 1 0 1 w
CONTROL TRANSFER
CALL
e
Call:
Direct Within Segment
1 1 1 0 1 0 0 0
disp-low
disp-high
Indirect Within Segment
1 1 1 1 1 1 1 1
mod 0 1 0 r/m
Direct Intersegment
1 0 0 1 1 0 1 0
offset-low
offset-high
seg-low
seg-high
Indirect Intersegment
1 1 1 1 1 1 1 1
mod 0 1 1 r/m
28