Computer Hardware User's Manual

3-504 Vol. 2A Jcc—Jump if Condition Is Met
INSTRUCTION SET REFERENCE, A-M
0F 8C cd JNGE rel32 Valid Valid Jump near if not greater or equal (SF≠
OF).
0F 8D cw JNL rel16 N.S. Valid Jump near if not less (SF=OF). Not
supported in 64-bit mode.
0F 8D cd JNL rel32 Valid Valid Jump near if not less (SF=OF).
0F 8F cw JNLE rel16 N.S. Valid Jump near if not less or equal (ZF=0 and
SF=OF). Not supported in 64-bit mode.
0F 8F cd JNLE rel32 Valid Valid Jump near if not less or equal (ZF=0 and
SF=OF).
0F 81 cw JNO rel16 N.S. Valid Jump near if not overflow (OF=0). Not
supported in 64-bit mode.
0F 81 cd JNO rel32 Valid Valid Jump near if not overflow (OF=0).
0F 8B cw JNP rel16 N.S. Valid Jump near if not parity (PF=0). Not
supported in 64-bit mode.
0F 8B cd JNP rel32 Valid Valid Jump near if not parity (PF=0).
0F 89 cw JNS rel16 N.S. Valid Jump near if not sign (SF=0). Not
supported in 64-bit mode.
0F 89 cd JNS rel32 Valid Valid Jump near if not sign (SF=0).
0F 85 cw JNZ rel16 N.S. Valid Jump near if not zero (ZF=0). Not
supported in 64-bit mode.
0F 85 cd JNZ rel32 Valid Valid Jump near if not zero (ZF=0).
0F 80 cw JO rel16 N.S. Valid Jump near if overflow (OF=1). Not
supported in 64-bit mode.
0F 80 cd JO rel32 Valid Valid Jump near if overflow (OF=1).
0F 8A cw JP rel16 N.S. Valid Jump near if parity (PF=1). Not supported
in 64-bit mode.
0F 8A cd JP rel32 Valid Valid Jump near if parity (PF=1).
0F 8A cw JPE rel16 N.S. Valid Jump near if parity even (PF=1). Not
supported in 64-bit mode.
0F 8A cd JPE rel32
Valid Valid Jump near if parity even (PF=1).
0F 8B cw JPO rel16 N.S. Valid Jump near if parity odd (PF=0). Not
supported in 64-bit mode.
0F 8B cd JPO rel32 Valid Valid Jump near if parity odd (PF=0).
0F 88 cw JS rel16 N.S. Valid Jump near if sign (SF=1). Not supported
in 64-bit mode.
Opcode Instruction 64-Bit
Mode
Compat/
Leg Mode
Description