When multiplying signed numbers, one way to get the correct answer is to convert the multiplier and

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When multiplying signed numbers, one way to get the correct answer is to convert the multiplier and multiplicand to positive numbers, save the original signs, and then adjust the final value accordingly. Using a table similar to that shown in Figure 3.7, calculate the product of A and B using the hardware described in Figure 3.4. You should show the contents of each register on each step, and include the step necessary to produce the correctly signed result. Assume A and B are stored in 6-bit sign-magnitude format.

Figure 3.7Iteration 0 1 2 3 4 Step Initial values 1a: 1 Prod Prod + Mcand 2: Shift left Multiplicand 3: Shift right

Figure 3.4Multiplicand 64-bit ALU Product 64 bits 64 bits Write Shift left Control test Multiplier Shift right 32 bits


The following table shows pairs of octal numbers.. b. A 41 60 B 33 26

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Related Book For  answer-question

Computer Organization And Design The Hardware Software Interface

ISBN: 9780123747501

4th Revised Edition

Authors: David A. Patterson, John L. Hennessy

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