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The circuit generates the following four arithmetic operations in conjunction with the input carry Cin.
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Design an arithmetic circuit with one selection variable S and two n-bit data inputs A & B. What is an instruction format? Explain different types of instruction formats in detail.Ģ1. Explain the importance of different addressing modes in computer architecture with suitable example. Define the following: (i) Microcode (ii) Microinstruction (iii) Explain a memory operation in each case: (i) MR3ġ8. The following transfer statements specify a memory. What are the two instructions needed in the basic computer in order to set E flip-flop to 1? 17. Explain the overflow condition in arithmetic shift micro operation. Explain the difference between hardwired and control and micro programmed control. What are the types of memory management? 14. Computer arithmetic with two's complements. How do you improve the cache performance. What are different pipelining hazards and how are they eliminated? 9. What is write back and write through caches? 8. What is cache coherency and how is it eliminated? 7. (i) How many selection inputs are there in each multiplier? (ii) What sizes of multiplexers are needed? (iii) How many multiplexers are there in the bus? 3. The bus is constructed with multiplexers. A digital computer has a common bus system for 16 registers of 32 bits each. How many bits wide memory address have to be if the computer had 16 MB of memory? (use the smallest value possible) 2. COMPUTER ARCHITECTURE IMPORTANT QUESTIONS FOR PRACTICE 1.