Hi,
I'd like to make a diagram of a 4 bits adder, i thought it would be best to begin by working out the truth table, i first calculated the highest number i can get with 4 bits, 1111 that is 15 as a decimal number, so should my truth table be 16 * 16 lines based? I mean, if the two numbers i add up can take the value 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, or F, should i write in the truth table the 256 cases, (0,0) (0,1) (0,2) ... (F,E) (F,F) ?
I'd like to make a diagram of a 4 bits adder, i thought it would be best to begin by working out the truth table, i first calculated the highest number i can get with 4 bits, 1111 that is 15 as a decimal number, so should my truth table be 16 * 16 lines based? I mean, if the two numbers i add up can take the value 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, or F, should i write in the truth table the 256 cases, (0,0) (0,1) (0,2) ... (F,E) (F,F) ?