Perform the following arithmetic operations using 8-
bit binary signed 1’s and signed 2’s complement notation
for integers. (Please note that the numbers given here are
in decimal notation) (3 Marks)

i) Add – 52 and 68
ii) Subtract 66 from – 62
ii) Add 28 and 100

Please indicate the overflow if it is occurs.

Answer Posted / shibin.m

LCM OF 52 > 110100
LCM OF 68 > 1000100

-52 ( 8 BIT) > 10110100 (Left most bit shows sign)
68 ( 8 BIT) > 01000100

-52 + 68> 1000100 +
0110100
----------
110000 = +16
---------------

Is This Answer Correct ?    12 Yes 3 No



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