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Vol. 2A 3-523
INSTRUCTION SET REFERENCE, A-M
LAR—Load Access Rights Byte
Virtual-8086 Mode Exceptions
#UD The LAR instruction cannot be executed in virtual-8086 mode.
Compatibility Mode Exceptions
Same exceptions as in protected mode.
64-Bit Mode Exceptions
#SS(0) If the memory operand effective address referencing the SS
segment is in a non-canonical form.
#GP(0) If the memory operand effective address is in a non-canonical
form.
#PF(fault-code) If a page fault occurs.
#AC(0) If alignment checking is enabled and the memory operand effec-
tive address is unaligned while the current privilege level is 3.
#UD If the LOCK prefix is used.