Computer Organization
Computer Arithmetic
Marks 1Marks 2Marks 5
Machine Instructions and Addressing Modes
Marks 1Marks 2
Memory Interfacing
Marks 1Marks 2Marks 5
IO Interface
Marks 1Marks 2
Alu Data Path and Control Unit
Marks 1Marks 2
Secondary Memory
Marks 1Marks 2
1
GATE CSE 2020
MCQ (Single Correct Answer)
+1
-0.33
Consider the following data path diagram. GATE CSE 2020 Computer Organization - Alu Data Path and Control Unit Question 2 English
Consider an instruction: R0 $$ \leftarrow $$ R1 + R2. The following steps are used to execute it over the given data path. Assume that PC is incremented appropriately. The subscripts r and w indicate read and write operations, respectively.

1. R2r, TEMP1r, ALUadd, TEMP2w
2. R1r, TEMP1w
3. PCr, MARw, MEMr
4. TEMP2r, R0w
5. MDRr, IRw

Which one of the following is the correct order of execution of the above steps?
A
3, 5, 1, 2, 4
B
3, 5, 2, 1, 4
C
1, 2, 4, 3, 5
D
2, 1, 4, 5, 3
Questions Asked from Marks 1
GATE CSE Subjects
Theory of Computation
Operating Systems
Algorithms
Digital Logic
Database Management System
Data Structures
Computer Networks
Software Engineering
Compiler Design
Web Technologies
General Aptitude
Discrete Mathematics
Programming Languages
Computer Organization