## ALP Programming Guide and Reference

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### Protected Mode Exceptions

#GP, #SS, and #NP if a segment register is being loaded; otherwise, #GP(0) if the destination is in a nonwritable segment; #GP(0) for an illegal memory operand effective address in the CS, DS, ES, FS, or GS segments; #SS (0) for an illegal address in the SS segment; #PF(fault-code) for a page fault; #AC for unaligned memory reference if the current privilege level is 3.