A-A+
若A=95H=10010101B R0=64H=01100100B (64H)=85H=1
问题详情
若A=95H=10010101B, R0=64H=01100100B,(64H)=85H=10000101B,(23H)=BAH=10111010B，将分别执行下列指令后的结果写在注释区。
参考答案
XRL A,R0 ;A=A⊕RO=95H⊕64H=11110001B=F1H$XRL A,@R0 ;A=A⊕(R0)=95H⊕85H=00010000B=10H$XRL A,#23H ;A=A⊕data=95H⊕23H=10110110B=B6H$XRL A,23H ;A=A⊕(23H)=95H⊕BAH=00101111B=2FH$XRL 23H,A ;(23H)=(23H)⊕A=BAH⊕95H=00101111B=2FH$XRL 23H,#23H ;(23H)=(23H)⊕data=BAH⊕23H=10011001B=99H
