Intel 8086 Specification Sheet page 27

Mnemonic and
Description
ARITHMETIC
ADD Add
e
Reg Memory with Register to Either
Immediate to Register Memory
Immediate to Accumulator
ADC Add with Carry
e
Reg Memory with Register to Either
Immediate to Register Memory
Immediate to Accumulator
INC Increment
e
Register Memory
Register
ASCII Adjust for Add
AAA
e
BAA Decimal Adjust for Add
e
SUB Subtract
e
Reg Memory and Register to Either
Immediate from Register Memory
Immediate from Accumulator
SSB Subtract with Borrow
e
Reg Memory and Register to Either
Immediate from Register Memory
Immediate from Accumulator
DEC Decrement
e
Register memory
Register
NEG Change sign
e
CMP Compare
e
Register Memory and Register
Immediate with Register Memory
Immediate with Accumulator
AAS ASCII Adjust for Subtract
e
DAS Decimal Adjust for Subtract
e
MUL Multiply (Unsigned)
e
IMUL Integer Multiply (Signed)
e
AAM ASCII Adjust for Multiply
e
DIV Divide (Unsigned)
e
IDIV Integer Divide (Signed)
e
AAD ASCII Adjust for Divide
e
CBW Convert Byte to Word
e
Convert Word to Double Word
CWD
e
Mnemonics Intel 1978
Table 2 Instruction Set Summary (Continued)
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
0 0 0 0 0 0 d w mod reg r m
1 0 0 0 0 0 s w mod 0 0 0 r m
0 0 0 0 0 1 0 w
0 0 0 1 0 0 d w mod reg r m
1 0 0 0 0 0 s w mod 0 1 0 r m
0 0 0 1 0 1 0 w
1 1 1 1 1 1 1 w mod 0 0 0 r m
0 1 0 0 0 reg
0 0 1 1 0 1 1 1
0 0 1 0 0 1 1 1
0 0 1 0 1 0 d w mod reg r m
1 0 0 0 0 0 s w mod 1 0 1 r m
0 0 1 0 1 1 0 w
0 0 0 1 1 0 d w mod reg r m
1 0 0 0 0 0 s w mod 0 1 1 r m
0 0 0 1 1 1 w
1 1 1 1 1 1 1 w mod 0 0 1 r m
0 1 0 0 1 reg
1 1 1 1 0 1 1 w mod 0 1 1 r m
0 0 1 1 1 0 d w mod reg r m
1 0 0 0 0 0 s w mod 1 1 1 r m
0 0 1 1 1 1 0 w
0 0 1 1 1 1 1 1
0 0 1 0 1 1 1 1
1 1 1 1 0 1 1 w mod 1 0 0 r m
1 1 1 1 0 1 1 w mod 1 0 1 r m
1 1 0 1 0 1 0 0 0 0 0 0 1 0 1 0
1 1 1 1 0 1 1 w mod 1 1 0 r m
1 1 1 1 0 1 1 w mod 1 1 1 r m
1 1 0 1 0 1 0 1 0 0 0 0 1 0 1 0
1 0 0 1 1 0 0 0
1 0 0 1 1 0 0 1
Instruction Code
7 6 5 4 3 2 1 0
data
data data if w 1
e
data
data data if w 1
e
data
data data if w 1
e
data
data data if w 1
e
data
data data if w 1
e
8086
7 6 5 4 3 2 1 0
data if s w 01
e
data if s w 01
e
data if s w 01
e
data if s w 01
e
data if s w 01
e
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