GTU Computer Engineering (Semester 3)
Computer Organization And Architecture
June 2015
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) List and explain different types of shift micro operation.
7 M
1 (b) What is register transfer language? Explain R2← R1 micro operation with block diagram and timing diagram.
7 M

2 (a) Differentiate between register-reference instructions and memory-reference 07 instructions with four instructions in each type.
7 M
2 (b) Explain the Common Bus System with its diagram.
7 M
2 (c) Design the combinational circuit for Common Bus system for four bit register using Multiplexer.
7 M

3 (a) Draw the block diagram of control unit of basic computer. Explain in detail with control timing diagrams.
7 M
3 (b) What is addressing mode? List and explain all addressing modes used in basic computer.
7 M
3 (c) What is stack? Give the organization of register stack with all necessary elements and explain the different operations of stack.
7 M
3 (d) What are the main types of Interrupts? Explain each type in details.
7 M

4 (a) Give the comparisons between RISC and CISC.
7 M
4 (b) What is subroutine? Explain subroutine parameters and data linkage.
7 M
4 (c) What is assembler? Explain the different phases of assembler.
7 M
4 (d) Explain address sequencing with block diagram.
7 M

5 (a) What is Instruction Pipeline? Explain the Four-Segment Instruction Pipeline with the suitable diagram.
7 M
5 (b) Multiply the (10) with (-6) using Booth's algorithm. Give each step in details.
7 M
5 (c) What is pipeline conflict? Explain data dependency and handling of branch instruction in detail.
7 M
5 (d) Explain the Booth Multiplication Algorithm in detail.
7 M



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