1 the original code 0000 0001-1 of the original Code 1000 0001 (the first 1 is the sign bit) the two added 1000 0010 is not equal to 0 so there is the complement, with the complement can be directly calculated
Anti-code Definition1. Positive inverse code is the same as the original code2. Negative number of the anti-code, the sign bit for "1" to remain unchanged, the value of the partial negation. Ex:1 'sAnti-Code0000 0001-1 ofAnti-Code 1111 1110
Complement definition1. The complement of positive numbers is the same as the original code2. The complement of negative number is anti-code +1EX:1 's complement 0000 0001-1 's complement 1111 1111
Comprehensive: a>0,a Anti-code meter for the fa,-a of the anti-code meter for the-fa;a complement of the ba,-a as a complement to the-baThen there is fa+ (-FA) = 0xFF (1111 1111)so if the complement of negative numbers is anti-code +1Then there is ba+ (-ba) = fa+ (-fa + 1) = 0xFF +1 = 0x00so the values represented by the complement can be calculated directly
Original code anti-code complement
