题目
[主观题]
假设(DS)=3000H,(ES)=4100H,(SS)=2000H,(SI)=00A0H,(DI)=2H,(BX)=100H,(BP)=10H,(BUF)=2000H。试指出下列各指令中源操作数的寻址方式,若为存储器操作数,请计算其物理地址。(互评需要达到5次) (1)MOV AX ,BUF (2)MOV AX ,BUF[BX] (3)MOV AX ,[BX-40H] (4)MOV AX ,[BP+100H][SI]
答:1.(AX)=3200H 2.(AX)=0E00H 3.(31200H)=2000H 4.(300FEH)=2000H, (SP)=00FEH 5.(31200H)=4FH 6.(31200H)=0FDB0H 7.(31202H)=0FBH 8.(31203H)=21H 9.(DX)=121EH, (AX)=0E000H 10.溢出