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已知(DS)=1000H,(BP)=0010I,(DI)=0100H,(010111H)=0ABH,(010111) =0BAH,执行指令LEA CX,[BP][DI]后,(BX)=( )。
A.0ABBAH
B.0100H
C.0BAABH
D.O11OH
参考答案
更多 “ 已知(DS)=1000H,(BP)=0010I,(DI)=0100H,(010111H)=0ABH,(010111) =0BAH,执行指令LEA CX,[BP][DI]后,(BX)=( )。A.0ABBAHB.0100HC.0BAABHD.O11OH ” 相关考题
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阅读下面的程序,回答问题
DATA SEGMENT
BUF DB '1234'
N=$-BUF
BCD DB N DUP(?)
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DS,AX
LEA SI,BUF
MOV CX,N
LEA DI,BCD+N-1
LOOP1:MOV AL,[SI]
SUB AL,30H
MOV [DI],AL
INC SI
DEC DI
DEC CX
JNE LOOP1
MOV AH,4CH
INT 21H
CODE ENDS
END START
如果将代码段中的指令LEA DI,BCD+N-1改成LEA DI,BCD;DEC DI改成INC DI,其它指令不变,程序执行后,从BCD开始的N个字节单元中的内容是什么?
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