The exponent is interpreted as a signed integer, allowing negative as well as positive exponents.

作为有符号整数的指数可以有正负之分。

youdao

First, eight bits for the exponent should represent -128 to 127, just like a signed byte.

首先，表示指数的8位应该是从- 128到127，就像带符号的字节一样。

youdao

Long double IEEE double extended floating point exponent of 15 bits and signed fraction of 64 bits.

longdouble IEEE双字节扩展浮点数15位指数，64位带符号小数。

youdao