caps lock Chapter 3 Arithmetic for Computers 184 Multiplicand Shift left 64 bits

Question

caps lock Chapter 3 Arithmetic for Computers 184 Multiplicand Shift left 64 bits Multiplier 64-bit ALU Shift right 32 bits Product Control test Write 64 bits FIGURE 3.3 First version of the multiplication hardware. The Multiplicand register, ALl and Product register are all 64 bits wide, with only the Multiplier register containing 32 bits. (Appendix B describes ALUs.) The 32-bit multiplicand starts in the right half of the Multiplicand register and is shifted let I bit on each step. The multiplier is shifted in the opposite direction at each step. The algorithm starts with the product initialized to 0. Control decides when to shift the Multiplicand and Multiplier registers and when to write new values into the Product register. Sequential Version of the Mutilins

Explanation / Answer

Solution:

The ALU size will be 20 bits, because in this case we will be having a multiplier and multiplicand of 10 bits each and to perform and store these operations 20 bits will be required.

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