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Hw4 - CSc 252 Homework 4 Version 1.0 Homework 4 Due 10:30am...

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CSc 252 Homework 4 Version 1.0 1 of 4 Homework 4 Due: 10:30am Tuesday, Oct. 18, 2011 Turnin: Two solutions: 3 , and 4 . To receive credit for your solutions, you must show your work where applicable. Solutions to the remaining problems are attached. 1. For the following pair of 16- bit numbers, determine the “super” propagate and generate bits and the value of C1, C2, C3, and C4. See slides 44 to 45 for an example. Use c0 = 0. a: 1001 0111 1000 1011 two b: 1111 0010 0101 0011 two Assume the bits are numbered 15 to 0 from left to right. 2. Same as the previous problem. This time, use c0 = 1 . a: 0111 0101 0000 1101 two b: 1100 0111 0011 0101 two 3. turnin this one: Same as the previous problem. This time, use c0 = 1 . a: 0101 0101 0000 1100 two b: 1101 1111 1111 0001 two

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CSc 252 Homework 4 Version 1.0 2 of 4 4. turnin this one: The figure below shows part of the internal arrangements for a 4-bit carry-lookahead adder unit. See Slide 40 of the 4-ALU lecture notes. Complete the drawing to compute c4. Include a count of the 2-input gates needed beyond those already shown, and a count of the longest path through gates to compute c4.
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Hw4 - CSc 252 Homework 4 Version 1.0 Homework 4 Due 10:30am...

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