Intel 386 User Manual

Page 652

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E-15

INSTRUCTION SET SUMMARY

SETBE/SETNA = set byte on below or equal/not above

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 0 1 1 0

mod 0 0 0 r/m

4/5*

4/5*

h

SETNBE/SETA = set byte on not below or equal/above

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 0 1 1 1

mod 0 0 0 r/m

4/5*

4/5*

h

SETS = set byte on sign

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 1 0 0 0

mod 0 0 0 r/m

4/5*

4/5*

h

SETNS = set byte on not sign

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 1 0 0 1

mod 0 0 0 r/m

4/5*

4/5*

h

SETP/SETPE = set byte on parity/parity
even

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 1 01 0

mod 0 0 0 r/m

4/5*

4/5*

h

SETNP/SETPO = set byte on not parity/parity odd

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 1 0 1 1

mod 0 0 0 r/m

4/5*

4/5*

h

SETL/SETNGE = set byte on less/not greater or equal

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 1 1 0 0

mod 0 0 0 r/m

4/5*

4/5*

h

SETNL/SETGE = set byte on not less/greater or equal

to register/memory

0 0 0 0 1 1 1 1

0 1 1 1 1 1 0 1

mod 0 0 0 r/m

4/5*

4/5*

h

SETLE/SETNG = set byte on less or equal/not greater

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 1 1 1 0

mod 0 0 0 r/m

4/5*

4/5*

h

SETNLE/SETG = set byte on not less or equal/greater

to register/memory

0 0 0 0 1 1 1 1

1 0 0 1 1 1 1 1

mod 0 0 0 r/m

4/5*

4/5*

h

ENTER = enter proce-
dure

1 1 0 0 1 0 0 0

16-bit displacement, 8-bit level

L = 0
L = 1
L > 1

10
14

17+8(n -

1)

10
14

17+8(n -

1)

b
b

h
h

LEAVE = leave proce-
dure

1 1 0 0 1 0 0 1

4

4

b

h

INTERRUPT INSTRUCTIONS

INT = Interrupt:

Type specified

1 1 0 0 1 1 0 1

type

37

b

Type 3

1 1 0 0 1 1 0 0

33

b

INTO = Interrupt 4 if
overflow flag set

1 1 0 0 1 1 1 0

If OF = 1

35

b, e

If OF = 0

3

3

b, e

Table E-1. Instruction Set Summary (Sheet 14 of 19)

Instruction

Format

Clock Count

Notes

Real

Ad-

dress
Mode

or

Virtual

8086
Mode

Pro-

tected

Virtual

Ad-

dress
Mode

Real

Ad-

dress
Mode

or

Virtual

8086
Mode

Pro-

tected

Virtual

Ad-

dress
Mode

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