80C186EC/80C188EC Microprocessor User's Manual

INSTRUCTION SET DESCRIPTIONS
Table C-4. Instruction Set (Continued)
Name Description Operation
Flags
Affected
JNE
JNZ
JNO
JNS
JNP
JPO
NOTE:
Jump on Not Equal:
Jump on Not Zero:
JNE disp8
JNZ disp8
Transfers control to the target location
if the tested condition (ZF = 0) is true.
Instruction Operands:
JNE short-label
JNZ short-label
Jump on Not Overflow:
JNO disp8
Transfers control to the target location
if the tested condition (OF = 0) is true.
Instruction Operands:
JNO short-label
Jump on Not Sign:
JNS disp8
Transfers control to the target location
if the tested condition (SF = 0) is true.
Instruction Operands:
JNS short-label
Jump on Not Parity:
Jump on Parity Odd:
JNO disp8
JPO disp8
Transfers control to the target location
if the tested condition (PF=0) is true.
Instruction Operands:
JNO short-label
JPO short-label
if
(ZF) = 0
then
(IP) ← (IP) + disp8 (sign-ext to 16 bits)
if
(OF) = 0
then
(IP) ← (IP) + disp8 (sign-ext to 16 bits)
if
(SF) = 0
then
(IP) ← (IP) + disp8 (sign-ext to 16 bits)
if
(PF) = 0
then
(IP) ← (IP) + disp8 (sign-ext to 16 bits)
The three symbols used in the Flags Affected column are defined as follows:
– the contents of the flag remain unchanged after the instruction is executed
the contents of the flag is undefined after the instruction is executed
üthe flag is updated after the instruction is executed
AF –
CF –
DF –
IF –
OF –
PF –
SF –
TF –
ZF –
AF –
CF –
DF –
IF –
OF –
PF –
SF –
TF –
ZF –
AF –
CF –
DF –
IF –
OF –
PF –
SF –
TF –
ZF –
AF –
CF –
DF –
IF –
OF –
PF –
SF –
TF –
ZF –
C-24