M80C286 데이터 시트보기 (PDF) - Intel

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M80C286

HIGH PERFORMANCE CHMOS MICROPROCESSOR WITH MEMORY MANAGEMENT AND PROTECTION

Intel 

M80C286

M80C286 INSTRUCTION SET SUMMARY (Continued)

FUNCTION

FORMAT

CONTROL TRANSFER (Continued)

Protected Mode Only

Via interrupt or trap gate to same privilege level

Via interrupt or trap gate to fit different privilege level

Via Task Gate

IRETeInterrupt return

11001111

Protected Mode Only

To different privilege level

To different task (NTe1)

BOUNDeDetect value out of range

0 1 1 0 0 0 1 0 mod reg r m

PROCESSOR CONTROL

CLCeClear carry

11111000

CMCeComplement carry

11110101

STCeSet carry

11111001

CLDeClear direction

11111100

STDeSet direction

11111101

CLIeClear interrupt

11111010

STIeSet interrupt

11111011

HLTeHalt

11110100

WAITeWait

10011011

LOCKeBus lock prefix

11110000

CTSeClear task switched flag

00001111 00000110

ESCeProcessor Extension Escape

1 1 0 1 1 T T T mod LLL r m

(TTT LLL are opcode to processor extension)

SEGeSegment Override Prefix

001 reg 110

PROTECTION CONTROL

LGDTeLoad global descriptor table register 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 mod 0 1 0 r m

SGDTeStore global descriptor table register 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 mod 0 0 0 r m

LIDTeLoad interrupt descriptor table register 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 mod 0 1 1 r m

SIDTeStore interrupt descriptor table register 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 1 mod 0 0 1 r m

LLDTeLoad local descriptor table register

from register memory

0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 mod 0 1 0 r m

SLDTeStore local descriptor table register

to register memory

0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 mod 0 0 0 r m

CLOCK COUNT

Real

Address

Mode

Protected

Virtual

Address

Mode

COMMENTS

Real

Address

Mode

Protected

Virtual

Address

Mode

17am

40a m

78a m

167am

31a m

7 8 11 12 18

7 8 11 12 18

7 8 11 12 18

2 4 8 9 11 12 15 18

55am

169am

8 9 11 12 15 18

8 9 11 12 18

13

13

2 6 6 8 9 11 12 18

(Use INT clock

count if

exception 5)

2

2

2

2

2

2

2

2

2

2

3

3

14

2

2

14

2

2

13

3

3

0

0

14

2

2

3

13

9 – 20

9 – 20

58

8 17

0

0

11

11

23

9 13

11

11

23

9

12

12

23

9 13

12

12

23

9

17 19

1

9 11 13

23

1

9

Shaded areas indicate instructions not available in M8086 88 microsystems

58

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