80C186EB datasheet(55/59 Pages) INTEL

55 / 59 page

80C186EB80C188EB 80L186EB80L188EB

INSTRUCTION SET SUMMARY (Continued)

80C186EB

80C188EB

Function

Format

Clock

Comments

Cycles

ARITHMETIC

(Continued)

IMUL e

Integer multiply (signed)

1111011w

mod101 r m

25–28

34–37

Memory-Byte

31–34

Memory-Word

40–43

IMUL e

Integer Immediate multiply

011010s1

modreg r m

data

data if se0

22–25

(signed)

29–32

DIV e

Divide (unsigned)

1111011w

mod110 r m

Memory-Byte

Memory-Word

IDIV e

Integer divide (signed)

1111011w

mod111 r m

44–52

53–61

Memory-Byte

50–58

Memory-Word

59–67

AAM e

ASCII adjust for multiply

11010100

00001010

AAD e

ASCII adjust for divide

11010101

00001010

CBW e

Convert byte to word

10011000

CWD e

Convert word to double word

10011001

LOGIC

ShiftRotate Instructions

RegisterMemory by 1

1101000w

modTTTr m

215

RegisterMemory by CL

1101001w

modTTTr m

5an17an5an17an

RegisterMemory by Count

1100000w

modTTTr m

count

5an17an5an17an

TTT Instruction

000

ROL

001

ROR

010

RCL

011

RCR

1 0 0

SHLSAL

101

SHR

111

SAR

AND e And

Regmemory and register to either

001000dw

modreg r m

310

Immediate to registermemory

1000000w

mod100 r m

data

data if we1

416

Immediate to accumulator

0010010w

data

data if we1

816-bit

TESTeAnd function to flags no result

Registermemory and register

1000010w

modreg r m

310

Immediate data and registermemory

1111011w

mod000 r m

data

data if we1

410

Immediate data and accumulator

1010100w

data

data if we1

816-bit

OReOr

Regmemory and register to either

000010dw

modreg r m

310

Immediate to registermemory

1000000w

mod001 r m

data

data if we1

416

Immediate to accumulator

0000110w

data

data if we1

816-bit

Shaded areas indicate instructions not available in 80868088 microsystems

NOTE

Clock cycles shown for byte transfers For word operations add 4 clock cycles for all memory transfers

80C186EB Datasheet(PDF) 55 Page - Intel Corporation

80C186EB Datasheet(HTML) 55 Page - Intel Corporation

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