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INSTRUCTION SET REFERENCE
RET—Return from Procedure (Continued)
Virtual-8086 Mode Exceptions
#GP(0)
If the return instruction pointer is not within the return code segment limit
#SS(0)
If the top bytes of stack are not within stack limits.
#PF(fault-code)If a page fault occurs.
#AC(0)
If an unaligned memory access occurs when alignment checking is
enabled.