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ALU is the acronym for arithmetic and logic unit. This circuit performs arithmetic and logic operations in a processor.

4
votes
3answers
Suppose the first four data inputs are X (X0, X1, X2, X3) and the second four data inputs are Y (Y0, Y1, Y2, Y3) in a 4-bit ALU. Why "All 1's" are used as an input for Y in the decrement operation of ALU? …
asked Apr 8 '15 by user253689
2
votes
7answers
According to two's complement, the binary numbers 111 and 11111111 are equivalent to -1. Why or how are the binary numbers 11, 111, 1111, 1111 1111, etc. equivalent to -1 in two's complement? Can anyo …
asked Apr 12 '15 by user253689