填空題

已知X1=+0010100,Y1=+0100001,X2=0010100,Y2=0100001,試計算下列各式(設字長為8位)。
(1)[X1+Y1]補=[X1]補+[Y1]補=()
(2)[X1-Y2]補=[X1]補+[-Y2]補=()
(3)[X2-Y2]補=[X2]補+[-Y2]補=()
(4)[X2+Y2]補=[X2]補+[Y2]補=()

答案: 00010100+00100001=00110101;00010100+00100001=00110101;111011...
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