Intel 386 User Manual

E-13
INSTRUCTION SET SUMMARY
Full displacement
0 0 0 0 1 1 1 1 1 0 0 0 0 1 0 1 Full displacement
7 + m
or 3
7 + m
or 3
r
JBE/JNA = jump on below or equal/not above
8-bit displacement
0 1 1 1 0 1 1 0 8-bit displacement
7 + m
or 3
7 + m
or 3
r
Full displacement
0 0 0 0 1 1 1 1 1 0 0 0 0 1 1 0 Full displacement
7 + m
or 3
7 + m
or 3
r
JNBE/JA = jump on not below or equal/above
8-bit displacement
0 1 1 1 0 1 1 1 8-bit displacement
7 + m or
3
7 + m or
3
r
Full displacement
0 0 0 0 1 1 1 1 1 0 0 0 0 1 1 1 Full displacement
7 + m or
3
7 + m or
3
r
JS = jump on sign
8-bit displacement
0 1 1 1 1 0 0 0 8-bit displacement
7 + m or
3
7 + m or
3
r
Full displacement
0 0 0 0 1 1 1 1 1 0 0 0 1 0 0 0 Full displacement
7 + m or
3
7 + m or
3
r
JNS = jump on not sign
8-bit displacement
0 1 1 1 1 0 0 1 8-bit displacement
7 + m or
3
7 + m or
3
r
Full displacement
0 0 0 0 1 1 1 1 1 0 0 0 1 0 0 1 Full displacement
7 + m or
3
7 + m or
3
r
JP/JPE = jump on parity/parity even
8-bit displacement
0 1 1 1 1 0 1 0 8-bit displacement
7 + m or
3
7 + m or
3
r
Full displacement
0 0 0 0 1 1 1 1 1 0 0 0 1 0 1 0 Full displacement
7 + m or
3
7 + m or
3
r
JNP/JPO = jump on not parity/parity odd
8-bit displacement
0 1 1 1 1 0 1 1 8-bit displacement
7 + m or
3
7 + m or
3
r
Full displacement
0 0 0 0 1 1 1 1 1 0 0 0 1 0 1 1 Full displacement
7 + m or
3
7 + m or
3
r
JL/JNGE = jump on less/not greater or
equal
8-bit displacement
0 1 1 1 1 1 0 0 8-bit displacement
7 + m or
3
7 + m or
3
r
Full displacement
0 0 0 0 1 1 1 1 1 0 0 0 1 1 0 0 Full displacement
7 + m or
3
7 + m or
3
r
JNL/JGE = jump on not less/greater or equal
8-bit displacement
0 1 1 1 1 1 0 1 8-bit displacement
7 + m or
3
7 + m or
3
r
Table E-1. Instruction Set Summary (Sheet 12 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

Intel 386 Specifications

General

Architecture	x86
Clock Speed	12 MHz to 40 MHz
Transistor Count	275, 000
Data Bus Width	32-bit
Address Bus Width	32-bit
Instruction Set	x86
Introduced	1985
Maximum Memory	4 GB
Operating Modes	Real mode, Protected mode, Virtual 8086 mode
MMU	Yes
Voltage	5V
Model	Intel 386
Package	PGA
Process	1.5 μm to 1 μm