已知R0=20H,(20H)=10H,P0=30H,(R2)=20H,运行下面的程序后,(40H)=?
MOV @R0,#11H
MOV A,R2
ADD A,20H
MOV PSW,#80H
SUBB A,P0
XRL A,#45H
MOV 40H,A
已知R0=20H,(20H)=10H,P0=30H,(R2)=20H,运行下面的程序后,(40H)=?MOV@R0,#11HMOV
答案:2 悬赏:40
解决时间 2021-11-07 11:46
- 提问者网友:无依无靠的距离
- 2021-11-06 16:45
最佳答案
- 二级知识专家网友:蜜罐小熊
- 2021-11-06 17:55
1.(40H)=44H;
2.(R0)= 36H (R2)= E2H
3.(A)= 10H (B)=01H
4.(41H)= 03H (42H)= 02H
5.貌似缺少(41H)的已知条件,且需确认(40H)=56后面有没有H;(40H) = 56 (41H) = (42H )=56 (43H)=56循环右移
5.(30H) =78 (31H) =04H (32H )=00H (33H)=FFH
7.
1)寄存器寻址2)直接寻址3)位寻址4)立即寻址5)变址间接寻址6)寄存器间接寻址
2.(R0)= 36H (R2)= E2H
3.(A)= 10H (B)=01H
4.(41H)= 03H (42H)= 02H
5.貌似缺少(41H)的已知条件,且需确认(40H)=56后面有没有H;(40H) = 56 (41H) = (42H )=56 (43H)=56循环右移
5.(30H) =78 (31H) =04H (32H )=00H (33H)=FFH
7.
1)寄存器寻址2)直接寻址3)位寻址4)立即寻址5)变址间接寻址6)寄存器间接寻址
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- 1楼网友:花一样艳美的陌生人
- 2021-11-06 19:26
期待看到有用的回答!
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