Memory representation of signed char in c

(2)Memory representation of: signed char a=-7;



Binary
equivalent of data 7 in eight bit:  00000111

Binary
equivalent of data -7 will be its 2’s complement:

1’s
complements of 0000 0111 is 1111 1000

2’s
complement will be:











Binary
equivalent of data -7 in eight bit:  1111 1001

Data
bit: 1111001 (Take first seven bit form right side)

Sign
bit: 1       (Take
leftmost one bit)