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Intel 80386 DJ Equipment User Manual

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80386

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8 1 80386 I

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ns rue Ion

e

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S

tCI

k C

oun

tS

ummary (C r

on

Inue

d)

CLOCK COUNT

NOTES

Real Real

INSTRUCTION

FORMAT

Address Protected

Address

Protected

Mode

or

Virtual

Modecr

Virtual

Virtual

Address Virtual

Address

8086

Mode

8086

Mode

Mode Mode

CONTROL TRANSFER (Continued)

RET

~

Return

from

CALL:

Within Segment

I

11000011

I

10

+ m 10 + m b

g,

h"

Within

Segment

Adding

Immediate

to

SP

I

11000010

I

16·bit displ

I

10

+ m 10 + m b

g,

h"

Intersegment

I

11001011

I

18

+ m

32+m

b

g,

h,i,

k"

Intersegment Adding Immediate to

SP

I

11001010

I

16·bit displ

I

18 + m

32+m

b

g,

h,

i,

k"

Protected Mode Only (RET):

to

Different Privilege Level

Intersegment

68

h,

i,

k"

Intersegment Adding Immediate

to

SP

68

h,

i,

k"

CONDITIONAL JUMPS

NOTE: Times

Are

Jump "Taken

or

Not Taken"

JO = Jump on Overflow

a-Bit Displacement

I

01110000

I

8·bit displ

I

7 + m

or3

7 +

mor3

,

Full Displacement

I

00001111

I

10000000

I full displacement 7 + m

or

3 7 +

mor3

,

JNO

~

Jump

on

Not

Overflow

8-Bit Displacement

I

01110001

I

8·bitdispl

I

7 +

morS

7 + m

or3

,

Full Displacement

I

00001111

I

10000001

I full displacement 7 +

mor3

7 + m

or3

,

JB/JNAE

~

Jump

on

BelowlNot

Above

0'

Equal

a-Bit Displacement

lO11100101

8·bit displ

j

7 +

morS

7 +

mor3

,

Full Displacement

l

00001111j

1

00000

1 0 j full displacement

7 +

mor3

7 + m

or3

,

JNB/JAE

~

Jumpon

Nol

Below/Above

or

Equal

8-Bit Displacement

I

01110011

I

8·bit displ

I

7 +

mor3

7 +

mor3

,

Full

Displacement

I

00001111

I

10000011

I full displacement

7 +

mor3

7+mor3

,

JE/JZ

~

Jump

on

Equal/Zero

8-Bit Displacement

I

01110100

I

8·bit displ

I

7 +

mor3

7 + m

or3

,

Full

Displacement

I

00001111

I

10000100

I full displacement

7 + m

or3

7 +

mor3

,

JNE/JNZ

~

Jump

on

Not

Equal/Not

Zero

8-Bit Displacement

I

01110101

I

8·bit displ

I

7 + m

or3

7+mor3

,

Full Displacement

I

00001111

I

10000101

I full displacement

7 +

mor3

7+mor3

,

JBE/JNA

= Jump

on

Below

or

Equal/Not Above

8-Bit

Displacement

I

01110110

I

8·bitdispl

I

7 +

mor3

7 +

mor3

,

Full

Displacement

I

00001111

I

10000110

I full displacement

7 +

mor3

7 +

mor3

,

JNBE/JA

~

Jump

on

Not

Below

or

Equal/Above

8-Bit Displacement

I

01110111

I

8·bit displ

I

7 +

mor3

7 + m

or3

,

Full Displacement

I

00001111

I

10000111

I full displacement 7 +

mor3

7+mor3

,

JS

~

Jump

on

Sign

8-Bit Displacement

I

01111000

I

8·bitdispl

I

7 +

mor3

7 +

mor3

,

Full Displacement

I

00001111

I

10001000

I full displacement 7 +

mor3

7 +

mor3

,

118

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