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8405202QA

CMOS 16-Bit Microprocessor

Intersil 

Instruction Set Summary

MNEMONIC AND DESCRIPTION

DATA TRANSFER

MOV = Move:

Register/Memory to/from Register

Immediate to Register/Memory

Immediate to Register

Memory to Accumulator

Accumulator to Memory

Register/Memory to Segment Register ††

Segment Register to Register/Memory

PUSH = Push:

Register/Memory

Register

Segment Register

POP = Pop:

Register/Memory

Register

Segment Register

XCHG = Exchange:

Register/Memory with Register

Register with Accumulator

IN = Input from:

Fixed Port

Variable Port

OUT = Output to:

Fixed Port

Variable Port

XLAT = Translate Byte to AL

LEA = Load EA to Register2

LDS = Load Pointer to DS

LES = Load Pointer to ES

LAHF = Load AH with Flags

SAHF = Store AH into Flags

PUSHF = Push Flags

POPF = Pop Flags

ARITHMETIC

ADD = Add:

Register/Memory with Register to Either

Immediate to Register/Memory

Immediate to Accumulator

31

80C86

76543210

INSTRUCTION CODE

76543210

76543210

76543210

100010dw

1100011w

1 0 1 1 w reg

1010000w

1010001w

10001110

10001100

mod reg r/m

mod 0 0 0 r/m

data

addr-low

addr-low

mod 0 reg r/m

mod 0 reg r/m

11111111

0 1 0 1 0 reg

0 0 0 reg 1 1 0

mod 1 1 0 r/m

10001111

0 1 0 1 1 reg

0 0 0 reg 1 1 1

mod 0 0 0 r/m

1000011w

1 0 0 1 0 reg

mod reg r/m

1110010w

port

1110110w

1110011w

1110111w

11010111

10001101

11000101

11000100

10011111

10011110

10011100

10011101

port

mod reg r/m

mod reg r/m

mod reg r/m

data

data if w 1

addr-high

addr-high

data if w 1

000000dw

100000sw

0000010w

mod reg r/m

mod 0 0 0 r/m

data

data

data if w = 1

data if s:w = 01

FN2957.3

January 9, 2009

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