Instruction set summary, Continued) – Intel 80L186EA User Manual
Page 45
80C186EA 80C188EA 80L186EA 80L188EA
INSTRUCTION SET SUMMARY
(Continued)
Function
Format
80C186EA
80C188EA
Comments
Clock
Clock
Cycles
Cycles
DATA TRANSFER
(Continued)
SEGMENT
e
Segment Override
CS
0 0 1 0 1 1 1 0
2
2
SS
0 0 1 1 0 1 1 0
2
2
DS
0 0 1 1 1 1 1 0
2
2
ES
0 0 1 0 0 1 1 0
2
2
ARITHMETIC
ADD
e
Add
Reg memory with register to either
0 0 0 0 0 0 d w
mod reg r m
3 10
3 10
Immediate to register memory
1 0 0 0 0 0 s w
mod 0 0 0 r m
data
data if s w
e
01
4 16
4 16
Immediate to accumulator
0 0 0 0 0 1 0 w
data
data if w
e
1
3 4
3 4
8 16-bit
ADC
e
Add with carry
Reg memory with register to either
0 0 0 1 0 0 d w
mod reg r m
3 10
3 10
Immediate to register memory
1 0 0 0 0 0 s w
mod 0 1 0 r m
data
data if s w
e
01
4 16
4 16
Immediate to accumulator
0 0 0 1 0 1 0 w
data
data if w
e
1
3 4
3 4
8 16-bit
INC
e
Increment
Register memory
1 1 1 1 1 1 1 w
mod 0 0 0 r m
3 15
3 15
Register
0 1 0 0 0 reg
3
3
SUB
e
Subtract
Reg memory and register to either
0 0 1 0 1 0 d w
mod reg r m
3 10
3 10
Immediate from register memory
1 0 0 0 0 0 s w
mod 1 0 1 r m
data
data if s w
e
01
4 16
4 16
Immediate from accumulator
0 0 1 0 1 1 0 w
data
data if w
e
1
3 4
3 4
8 16-bit
SBB
e
Subtract with borrow
Reg memory and register to either
0 0 0 1 1 0 d w
mod reg r m
3 10
3 10
Immediate from register memory
1 0 0 0 0 0 s w
mod 0 1 1 r m
data
data if s w
e
01
4 16
4 16
Immediate from accumulator
0 0 0 1 1 1 0 w
data
data if w
e
1
3 4
3 4
8 16-bit
DEC
e
Decrement
Register memory
1 1 1 1 1 1 1 w
mod 0 0 1 r m
3 15
3 15
Register
0 1 0 0 1 reg
3
3
CMP
e
Compare
Register memory with register
0 0 1 1 1 0 1 w
mod reg r m
3 10
3 10
Register with register memory
0 0 1 1 1 0 0 w
mod reg r m
3 10
3 10
Immediate with register memory
1 0 0 0 0 0 s w
mod 1 1 1 r m
data
data if s w
e
01
3 10
3 10
Immediate with accumulator
0 0 1 1 1 1 0 w
data
data if w
e
1
3 4
3 4
8 16-bit
NEG
e
Change sign register memory
1 1 1 1 0 1 1 w
mod 0 1 1 r m
3 10
3 10
AAA
e
ASCII adjust for add
0 0 1 1 0 1 1 1
8
8
DAA
e
Decimal adjust for add
0 0 1 0 0 1 1 1
4
4
AAS
e
ASCII adjust for subtract
0 0 1 1 1 1 1 1
7
7
DAS
e
Decimal adjust for subtract
0 0 1 0 1 1 1 1
4
4
MUL
e
Multiply (unsigned)
1 1 1 1 0 1 1 w
mod 100 r m
Register-Byte
26–28
26–28
Register-Word
35–37
35–37
Memory-Byte
32–34
32–34
Memory-Word
41–43
41–48
Shaded areas indicate instructions not available in 8086 8088 microsystems
NOTE
Clock cycles shown for byte transfers For word operations add 4 clock cycles for all memory transfers
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