Question

已知x=(-110)2,y=(11)2,其中x,y用一个字节存储,用补码运算计算x+y,要求给出计算过程及计算结果(结果

Answer 1

x = -110b

[x]原 =1000 0110b

[x]反 =1111 1001b

.

[x]补 =1111 1010b

[y]补 =0000 0011b (+

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[x+y]补 =1111 1101b

[x+y]反 =1111 1100b

[x+y]原 =1000 0011b

x+y = - 000 0011b = - 3d, 即(-3)10