单选

●计算机中十六位浮点数的表示格式为

某机器码为1110001010000000,

若阶码为移码且尾数为反码,则其十进制真值为 (7) ;

若阶码为移码且尾数为原码,则其十进制真值为 (8) ;

若阶码为补码且尾数为反码,则其十进制真值为 (9) ;

若阶码为补码且尾数为原码,则其十进制真值为 (10) ,将其规格化后的机器码为 (11) 。

(7)~(10) A.0.078125

   B.20

       C.20.969375

   D.1.25

(11) A.11110101000000

   B.1110001010000000

   C.1101010100000000

   D.11110001010000

参考答案
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