Intel 64 and IA-32 Architectures Software Developers Manual Volume 2B, Instruction Set Reference, N-Z

4-162 Vol. 2B
INSTRUCTION SET REFERENCE, N-Z
Protected Mode Exceptions
#GP(0) If a memory operand effective address is outside the CS, DS,
ES, FS, or GS segment limit.
#SS(0) If a memory operand effective address is outside the SS
segment limit.
#UD If CR0.EM[bit 2] = 1.
#NM If CR0.TS[bit 3] = 1.
#MF If there is a pending x87 FPU exception.
#PF(fault-code) If a page fault occurs.
#AC(0) If alignment checking is enabled and an unaligned memory
reference is made while the current privilege level is 3.
Real-Address Mode Exceptions
#GP(0) If any part of the operand lies outside of the effective address
space from 0 to FFFFH.
#UD If CR0.EM[bit 2] = 1.
#NM If CR0.TS[bit 3] = 1.
#MF If there is a pending x87 FPU exception.
Virtual-8086 Mode Exceptions
Same exceptions as in Real Address Mode
#PF(fault-code) For a page fault.
#AC(0) If alignment checking is enabled and an unaligned memory
reference is made.
Compatibility Mode Exceptions
Same as for protected mode exceptions.
64-Bit Mode Exceptions
#SS(0) If a memory address referencing the SS segment is in a non-
canonical form.
#GP(0) If the memory address is in a non-canonical form.
#UD If CR0.EM[bit 2] = 1.
#NM If CR0.TS[bit 3] = 1.
#MF If there is a pending x87 FPU exception.
#PF(fault-code) If a page fault occurs.
#AC(0) If alignment checking is enabled and an unaligned memory
reference is made while the current privilege level is 3.