Introduction - If you have any usage issues, please Google them yourself
Additional bits highest bit is 0, rounding, [M] up = 00.10101000 (5) overflow judgment, order code bits of the same symbol double, no overflow, additional bits highest bit is 0, rounding, [M] = 00 Complement . 10,101,000 (5) overflow judgment, order code bits of the same symbol double, no overflow