已知X1=+0010100,Y1=+0100001,X2=0010100,Y2=0100001,試計(jì)算下列各式(設(shè)字長(zhǎng)為8位)。 (1)[X1+Y1]補(bǔ)=[X1]補(bǔ)+[Y1]補(bǔ)=() (2)[X1-Y2]補(bǔ)=[X1]補(bǔ)+[-Y2]補(bǔ)=() (3)[X2-Y2]補(bǔ)=[X2]補(bǔ)+[-Y2]補(bǔ)=() (4)[X2+Y2]補(bǔ)=[X2]補(bǔ)+[Y2]補(bǔ)=()