设16位浮点数，其中阶符1位、阶码值6位、数符1位、尾数8位。若阶码用移码表示，尾数用补码表示，则该浮点数所能表示的数值范围是（ ）。
- A.-264～（1-2-8）264
- B.-263～（1-2-8）263
- C.-（1-2-8）264～（1-2-8）264
- D.-（1-2-8）263～（1-2-8）263
正确答案及解析
正确答案
解析
如果浮点数的阶码（包括1位阶符）用R位的移码表示，尾数（包括1位数符）用M位的补码表示，则浮点数表示的数值范围如下。
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