已知DS)=2000H,BX)=0300H,SI)=0002H,(20300H)=12H,(20301H)=34H,(20302H)=56H,(20303H)=78H,(21400H)=2AH,(21401H)=4CH,(21402H)=0B7H,(21403H)=65H说明操作数内容。
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