8088 datasheet(27/30 Pages) INTEL

27 / 30 page

8088

80868088 Instruction Set Summary

(Continued)

Mnemonic and

Instruction Code

Description

ARITHMETIC

76543210

ADD e Add

RegMemory with Register to Either

000000dw

mod reg r m

Immediate to RegisterMemory

100000sw

mod000r m

data

data if sw e 01

Immediate to Accumulator

0000010w

data

data if w e 1

ADC e Add with Carry

RegMemory with Register to Either

000100dw

mod reg r m

Immediate to RegisterMemory

100000sw

mod010r m

data

data if sw e 01

Immediate to Accumulator

0001010w

data

data if w e 1

INC e Increment

RegisterMemory

1111111w

mod000r m

01000reg

AAA e

ASCII Adjust for Add

00110111

BAA e

Decimal Adjust for Add

00100111

SUB e Subtract

RegMemory and Register to Either

001010dw

mod reg r m

Immediate from RegisterMemory

100000sw

mod101r m

data

data if sw e 01

Immediate from Accumulator

0010110w

data

data if w e 1

SSB e Subtract with Borrow

RegMemory and Register to Either

000110dw

mod reg r m

Immediate from RegisterMemory

100000sw

mod011r m

data

data if sw e 01

Immediate from Accumulator

000111w

data

data if w e 1

DEC e Decrement

Registermemory

1111111w

mod001r m

01001 reg

NEG e

Change sign

1111011w

mod011 r m

CMP e Compare

RegisterMemory and Register

001110dw

mod reg r m

Immediate with RegisterMemory

100000sw

mod111r m

data

data if sw e 01

Immediate with Accumulator

0011110w

data

data if w e 1

AAS e

ASCII Adjust for Subtract

00111111

DAS e

Decimal Adjust for Subtract

00101111

MUL e

Multiply (Unsigned)

1111011w

mod100r m

IMUL e

Integer Multiply (Signed)

1111011w

mod101r m

AAM e

ASCII Adjust for Multiply

11010100

00001010

DIV e

Divide (Unsigned)

1111011w

mod110r m

IDIV e

Integer Divide (Signed)

1111011w

mod111r m

AAD e

ASCII Adjust for Divide

11010101

00001010

CBW e

Convert Byte to Word

10011000

CWD e

Convert Word to Double Word

10011001

8088 Datasheet(PDF) 27 Page - Intel Corporation

8088 Datasheet(HTML) 27 Page - Intel Corporation

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