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8088 Conditional Transfer Operations
Instruction
JE or JZ
JL or JNGE
JLE or JNG
JB or JNAE or JC
JBE or JNA
JP or JPE
JO
JS
JNE or JNZ
JNL or JGE
JNLE or JG
JNB or JAE or JNC
JNBE or JA
JNP or JPO
JNO
JNS
Condition
ZF
=
1
(SF xor OF)
=1
((SF xor OF) or
ZF)
=
1
CF
=
1
(CF or ZF)
=
1
PF
=
1
OF
=
1
SF
=
1
ZF
=
0
(SF xor OF)
=
0
((SF xor OF) or
ZF)
=
0
CF
=
0
(CF or ZF)
=
0
PF
=
0
OF
=
0
SF
=
0
Interpretation
::equa,r' or
"lI
zero "
"
"less
or
notllgrea~er
or equal"
less or equal
or
not greater
::below
ll
or
"notllabov~
or equal::
IIbel~w
Rr eqHal .or
not"above
"parity
Rr
parity even
overflow
". "
"sign
" "
"
Ii
not equa,l,
or'l not zero
'I
IInot less
or
gre~ter
Rr equal'l
not less or equal
or
greater
II not below" or "aboxe or"equal::
"not below or equal
or
above
"not parity" Rr "parity odd"
"not overflow
"not sign"
I
Above
and
below
refer to the relation between two
unsigned values, while IIgreater" and "less" refer to the
relation between two signed values.
INT
=
Interrupt
Type Specified
11001101
Type 3
11001100
Type
INTO
=
Interrupt on Overflow
I
11001110
IRET
=
Interrupt Return
I
11001111
6-22
Instruction Set
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