【简答题】分析下面指令,写出运行结果。 条件:片内RAM(30H)=40H, (40H)=10H, (10H)=00H,端口(P1)=0CAH,分析程序执行后各单元内容: MOV R0, #30H; (R0) ←30H MOV A, @R0 MOV R1, A MOV B, @R1 MOV @R1, P1 MOV P2, P1 MOV 10H, #20H 填空: (R0)= ...
【简答题】( 3 )分析下面程序段运行结果。 MOV A , #88H ( A ) = XRL A , #0FFH ( A ) = ANL A , #0FH ( A ) = ORL A , #20H ( A ) =