Specifications

Intel
®
64 and IA-32 Architectures Software Developer’s Manual Documentation Changes 70
Documentation Changes
71 cb JNO rel8 A Valid Valid Jump short if not overflow
(OF=0).
7B cb JNP rel8 A Valid Valid Jump short if not parity
(PF=0).
79 cb JNS rel8 A Valid Valid Jump short if not sign
(SF=0).
75 cb JNZ rel8 A Valid Valid Jump short if not zero
(ZF=0).
70 cb JO rel8 A Valid Valid Jump short if overflow
(OF=1).
7A cb JP rel8 A Valid Valid Jump short if parity (PF=1).
7A cb JPE rel8 A Valid Valid Jump short if parity even
(PF=1).
7B cb JPO rel8 A Valid Valid Jump short if parity odd
(PF=0).
78 cb JS rel8 A Valid Valid Jump short if sign (SF=1).
74 cb JZ rel8 A Valid Valid Jump short if zero (ZF ← 1).
0F 87 cw JA rel16 A N.S. Valid Jump near if above (CF=0
and ZF=0). Not supported in
64-bit mode.
0F 87 cd JA rel32 A Valid Valid Jump near if above (CF=0
and ZF=0).
0F 83 cw JAE rel16 A N.S. Valid Jump near if above or equal
(CF=0). Not supported in 64-
bit mode.
0F 83 cd JAE rel32 A Valid Valid Jump near if above or equal
(CF=0).
0F 82 cw JB rel16 A N.S. Valid Jump near if below (CF=1).
Not supported in 64-bit
mode.
0F 82 cd JB rel32 A Valid Valid Jump near if below (CF=1).
0F 86 cw JBE rel16 A N.S. Valid Jump near if below or equal
(CF=1 or ZF=1). Not
supported in 64-bit mode.
0F 86 cd JBE rel32 A Valid Valid Jump near if below or equal
(CF=1 or ZF=1).
0F 82 cw JC rel16 A N.S. Valid Jump near if carry (CF=1).
Not supported in 64-bit
mode.
0F 82 cd JC rel32 A Valid Valid Jump near if carry (CF=1).
0F 84 cw JE rel16 A N.S. Valid Jump near if equal (ZF=1).
Not supported in 64-bit
mode.
Opcode Instruction Op/
En
64-Bit
Mode
Compat/
Leg Mode
Description