UC知道单片机的问题!题目
来源：百度知道 编辑：UC知道 时间：2024/09/26 10:55:19
下列程序，请指出执行结果
1 .已知（41H)=05H , A=50H
MOV R0,#40H
MOV A, #04H (A= R0= (41H)= )
INC R0
MOV A,@R0 (A= R0= (41H)= )
2.MOV A, #02H (A= )
MOV R0, #20H (A= R0= )
MOV P0, #34
CLR A (A= R0= P0= )
ANL A, R0
INC A (A= R0= P0= )
MOV P0, A
ORL A, #02H (A= R0= P0= |)
1 .已知（41H)=05H , A=50H
MOV R0,#40H
MOV A, #04H (A= R0= (41H)= )
INC R0
MOV A,@R0 (A= R0= (41H)= )
2.MOV A, #02H (A= )
MOV R0, #20H (A= R0= )
MOV P0, #34
CLR A (A= R0= P0= )
ANL A, R0
INC A (A= R0= P0= )
MOV P0, A
ORL A, #02H (A= R0= P0= |)
1 .已知（41H)=05H , A=50H
MOV R0,#40H
MOV A, #04H (A=04H R0=40H (41H)=05H)
INC R0
MOV A,@R0 (A=05H R0=41H (41H)=05H )
2.MOV A, #02H (A=02H )
MOV R0, #20H (A=02H R0=20H )
MOV P0, #34H
CLR A (A=00H R0=20H P0=34H )
ANL A, R0
INC A (A=01H R0=20H P0=34H )
MOV P0, A
ORL A, #02H (A=03H R0=20H P0=01H )
你仔细看看书这很简单的 有问题可以在交流的
1 .已知（41H)=05H , A=50H
MOV R0,#40H
MOV A, #04H (A=04H,R0=40H,(41H)=05H )
INC R0
MOV A,@R0 (A=05H,R0=41H,(41H)=05H)
2.MOV A, #02H (A=02H)
MOV R0, #20H (A=02H,R0=20H)
MOV P0, #34
CLR A (A=0,R0=20H,P0=34D)
ANL A, R0
INC A (A=0,R0=20H,P0=34D)
MOV P0, A
ORL A, #02H (A=02H,R0=20H,P0=0)