已知(AL)=B8H,(BL)=36H,则(AL)减(BL)后,标志位OF=__,CF=__,ZF=__,SF=__..
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已知(AL)=B8H,(BL)=36H,则(AL)减(BL)后,标志位OF=__,CF=__,ZF=__,SF=__...
![已知(AL)=B8H,(BL)=36H,则(AL)减(BL)后,标志位OF=__,CF=__,ZF=__,SF=__..](/uploads/image/z/16033427-35-7.jpg?t=%E5%B7%B2%E7%9F%A5%28AL%29%3DB8H%2C%28BL%29%3D36H%2C%E5%88%99%28AL%29%E5%87%8F%28BL%29%E5%90%8E%2C%E6%A0%87%E5%BF%97%E4%BD%8DOF%3D__%2CCF%3D__%2CZF%3D__%2CSF%3D__..)
OF=0,CF=0,ZF=0,SF=1
(AL)=1011 1000B,
(BL)=0011 0110B,
(AL)补=1100 1000B
(BL)补=0011 0110B
(AL)-(BL)
=(AL)补+(BL)补
=1100 1000B+0011 0110B
=1111 1100B
不好意思,刚才错了,我又看了下书,不知道对不对
(AL)=1011 1000B,
(BL)=0011 0110B,
(AL)补=1100 1000B
(BL)补=0011 0110B
(AL)-(BL)
=(AL)补+(BL)补
=1100 1000B+0011 0110B
=1111 1100B
不好意思,刚才错了,我又看了下书,不知道对不对
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