Question

下列程序段执行后，（R0）=＿(7EH)=＿(7FH)=＿

Mov R0,#7EH
Mov 7EH,#0FFH
Mov 7FH,#40H
INC @R0
INC @R0
INC @R0

Answer 1

Mov R0,#7EH........//(R0)=7EH
Mov 7EH,#0FFH......//(7EH)=0FFH
Mov 7FH,#40H.......//(7FH)=40H
INC @R0............//(7EH)=(7EH)+1=00H
INC @R0............//(7EH)=(7EH)+1=01H
INC @R0............//(7EH)=(7EH)+1=02H
结果：
(R0)=7EH
(7EH)=02H
(7FH)=40H

Answer 2

(R0)=7FH
(7EH)=00H
(7FH)=41H

Answer 3

引用VBplusplus的回答：
Mov R0,#7EH........//(R0)=7EH
Mov 7EH,#0FFH......//(7EH)=0FFH
Mov 7FH,#40H.......//(7FH)=40H
INC @R0............//(7EH)=(7EH)+1=00H
INC @R0............//(7EH)=(7EH)+1=01H
INC @R0............//(7EH)=(7EH)+1=02H
结果：
(R0)=7EH
(7EH)=02H
(7FH)=40H

就两个字：错的