Intel 386

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