Addition in sign-magnitude representations is unfortunately not as straight-forward as with common complement representations. ... <看更多>

An 8-bit signed integer has a range of -128 to 127. But hexadecimal 8D is 141. So what you're trying to accomplish is impossible. ... <看更多>

3.1. Sign and Magnitude表示法. 要用8個bit表示正數和負數，一種簡單的想法是把最高位規定為符號位（Sign Bit ... ... <看更多>