A bus-organized CPU similar to Fig. 8-2 has 16 registers with 32 bits in each, an ALU,

Question:

A bus-organized CPU similar to Fig. 8-2 has 16 registers with 32 bits in each, an ALU, and a destination decoder.

a. How many multiplexers are there in the A bus, and what is the size of each multiplexer?

b. How many selection inputs are needed for MUX A and MUX B?

c. How many inputs and outputs are there in the decoder?

d. How many inputs and outputs are there in the ALU for data, including input and output carries?

e. Formulate a control word for the system assuming that the ALU has 35 operations.

Fig. 8-2

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Computer System Architecture

ISBN: 9780131755635

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Question Posted: Oct 24, 2023 04:28 AM

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A bus-organized CPU similar to Fig. 8-2 has 16 registers with 32 bits in each, an ALU,

Question:

R1 R2 R3 R4 R5 R6 R7 Load (7 lines) Clock 3x8 decoder SELD SELA OPR | | | | | MUX A bus Arithmetic logic unit (ALU) Output (a) Block diagram 3 3 3 SELA SELB SELD (b) Control word 5 OPR MUX 8 bus Input SELB

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a There are 32 multiplexers in the A bus each with a size of 161 This means that each multiplexer can select one of 16 inputs and there are 32 such mu...View the full answer

Computer System Architecture

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