Make a circuit which gives the absolute value of a 4-bit
Chapter 9, Problem 9.23(choose chapter or problem)
Make a circuit which gives the absolute value of a 4-bit binary number. Use four full adders, four multiplexers, and four inverters. Assume negative numbers are represented in 2’s complement. Recall that one way to find the 2’s complement of a binary number is to invert all of the bits and then add 1.
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