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INSTRUCTION SET REFERENCE
STOS/STOSB/STOSW/STOSD—Store String (Continued)
Real-Address Mode Exceptions
#GP
If a memory operand effective address is outside the ES segment limit.
Virtual-8086 Mode Exceptions
#GP(0)
If a memory operand effective address is outside the ES segment limit.
#PF(fault-code)If a page fault occurs.
#AC(0)
If alignment checking is enabled and an unaligned memory reference is
made.
