This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Problem 6. Your circuit must operate in two different modes, determined by the value of S. When S = 0, the circuit output is ( A plus B ); When S = 1, the output is ( A  B ) = ( A plus B ' plus 1 ). Organize your circuit as shown below. Design the circuit module C1 so that Output bits = Corresponding input bits when S = 0. Output bits = The negation of the corresponding input bits when S = 1. [ To further simplify this module, consider only one input bit b. The output is equal to b when S = 0, is equal to b' when S = 1. Design this circuit, then use three copies of it for the other bits.] Design the module C2 so that Error is asserted properly for the addition or subtraction operation: Error equals co when S = 0, Error equals co ' when S = 1. Finally, decide how to connect the ci input....
View Full
Document
 Fall '07
 nestor

Click to edit the document details