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Intel 80386 DJ Equipment User Manual

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80386

Table 8-1. 80386

Instruction

Set Clock Count Summary (Continued)

CLOCK COUNT NOTES

Real Real

INSTRUCTION FORMAT Address Protected Address Protected

Mode

or

Virtual Mode

or

Virtual

Virtual Address Virtual

Address

8086 Mode 8086 Mode

Mode Mode

CONDITIONAL

JUMPS

(Continued)

JNS

~

Jump on

Not

Sign

8~Bit

Displacement

I

01111001

I

8-bil displ

I

7+mor3

7 +

mor3

r

Full

Displacement

I

00001111

I

10001001

I

full

displacement

7 +

mor3

7 +

mor3

r

JP/JPE

~

Jump

on

Parity/Parity Even

8·Bit

Displacement

I

01111010

I

8-bit displ

I

7 +

mor3

7 +

mor3

r

Full

Displacement

I

00001111

I

10001010

I full displacement 7 +

mor3

7 +

mor3

r

JNP/JPO

~

Jump on

Not

Parity/Parity Odd

8-Bit Displacement

I

01111011

I

8-bit displ

I

7 +

mor3

7 +

mor3

r

Full

Displacement

I

00001111

I

10001011

I full displacement

7+mor3

7 +

mor3

r

JL/JNGE

~

Jump

on

LesslNot

Greater

or

Equal

8-Bit Displacement

I

01111100

I

8-bit displ

I

7 +

mor3

7 +

mor3

r

Full

Displacement

I

00001111

I

10001100

I

full

displacement

7 +

mor3

7 +

mor3

r

JNLlJGE

~

Jump on

Not

Less/Greater

or

Equal

8-Bit

Displacement

I

01111101

I

8-bitdispl

I

7 +

mor3

7 +

mor3

r

Full

Displacement

I

00001111

I

10001101

I

full

displacement

7 +

mor3

7 +

mor3

r

JLE/JNG

~

Jump on Less

or

Equal/Not Greater

a-Bit

Displacement

I

01111110

I

8-bitdispl

I

7 +

mor3

7 +

mor3

r

Full

Displacement

I

00001111

I

10001110

I full displacement

7+mor3

7 +

mor3

r

JNLE/JG

~

Jump on

Not

Less

or

Equal/Greater

a-Bit

Displacement

I

01111111

I

8-bitdispl

I

7 + morS

7 + morS

r

Full

Displacement

I

00001111

I

10001111

I full displacement 7 + m

or3

7 +

mor3

r

JCXZ

~

Jump

on

CX

Zero

I

11100011

I

8-bitdispl

I

9 +

marS

9 + morS

r

JECXZ

~

Jump

on

ECX

Zero

I

11100011

I

8-bitdispl

I

9 + morS

9 +

mor5

r

(Operand

Size

Prefix Differentiates

JCXZ

from JECXZ)

LOOP

~

Loop

CX Times

I

11100010

I

8-bitdispl

I

11

+ m

11

+ m

r

LOOPZ/LOOPE

~

Loop

with

Zero/Equal

I

11100001

I

8-bitdispl

I

11

+ m

11

+ m

r

LOOPNZ/LOOPNE

~

Loop While

Not

Zero

I

11100000

I

8-bitdispl

I

11

+m

11

+ m

r

CONDITIONAL BYTE SET

NOTE: Times

Are

Register/Memory

SETO

~

Set Byte on Overflow

To Register/Memory

I

00001111

I

10010000

I modOOO

r/ml

4/5

4/5

h

SETNO

~

Set Byte

on

Not

Overflow

To

Register/Memory

I

00001111

I

10010001

I modOOO

rim

I

4/5

4/5

h

SETBISETNAE

~

Set Byte

on

Below/Not

Above

or

Equal

To Register/Memory

I

00001111

I

10010010

I modOOO

r/mi

4/5

4/5

h

119

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