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INSTRUCTION SET REFERENCE
LOCKAssert LOCK# Signal Prefix (Continued)
Protected Mode Exceptions
#UD
If the LOCK prefix is used with an instruction not listed in the Descrip-
tion section above. Other exceptions can be generated by the instruction
that the LOCK prefix is being applied to.
Real-Address Mode Exceptions
#UD
If the LOCK prefix is used with an instruction not listed in the Descrip-
tion section above. Other exceptions can be generated by the instruction
that the LOCK prefix is being applied to.
Virtual-8086 Mode Exceptions
#UD
If the LOCK prefix is used with an instruction not listed in the Descrip-
tion section above. Other exceptions can be generated by the instruction
that the LOCK prefix is being applied to.