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2. (a) How many instruction bits are required to specify the following: (i) Two operand registers and one result register in a machine that has 128 general-purpose registers? (ii) Three memory addresses in a machine with 256 KB of main memory?

2. (a) How many instruction bits are required to specify the following: (i) Two operand registers and one result register in a machine that has 128 general-purpose registers? (ii) Three memory addresses in a machine with 256 KB of main memory?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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1. Consider two different machines, with two different instruction sets, both of which have a clock rate of 300 MHz. The following measurements are recorded on the two machines running a given set of benchmark programs: Instruction Type Instruction Count Cycles per instruction (CPI) (millions) Machine A Arithmetic and Logic Load and Store 8 1 3 Branch 2 4 Others 4 4 Machine B Arithmetic and Logic Load and Store Branch Others 10 1 8 2 4 4 6 a. Determine the effective average CPI, MIPS rate, and execution time for each machine. b. Comment on the comparison between the MIPS and CPI for both machines. 2. (a) How many instruction bits are required to specify the following: (i) Two operand registers and one result register in a machine that has 128 general-purpose registers? (ii) Three memory addresses in a machine with 256 KB of main memory? (b) Data movement within the CPU can be performed in several different ways. Contrast the following methods in terms of their advantages and disadvantages: (i) One-bus datapath (ii) Two-bus datapath (iii) Point-to-point interconnect
Transcribed Image Text:1. Consider two different machines, with two different instruction sets, both of which have a clock rate of 300 MHz. The following measurements are recorded on the two machines running a given set of benchmark programs: Instruction Type Instruction Count Cycles per instruction (CPI) (millions) Machine A Arithmetic and Logic Load and Store 8 1 3 Branch 2 4 Others 4 4 Machine B Arithmetic and Logic Load and Store Branch Others 10 1 8 2 4 4 6 a. Determine the effective average CPI, MIPS rate, and execution time for each machine. b. Comment on the comparison between the MIPS and CPI for both machines. 2. (a) How many instruction bits are required to specify the following: (i) Two operand registers and one result register in a machine that has 128 general-purpose registers? (ii) Three memory addresses in a machine with 256 KB of main memory? (b) Data movement within the CPU can be performed in several different ways. Contrast the following methods in terms of their advantages and disadvantages: (i) One-bus datapath (ii) Two-bus datapath (iii) Point-to-point interconnect
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