1
GATE CSE 2025 Set 1
MCQ (More than One Correct Answer)
+1
-0

A partial data path of a processor is given in the figure, where $R A, R B$, and $R Z$ are 32-bit registers. Which option(s) is/are CORRECT related to arithmetic operations using the data path as shown?

GATE CSE 2025 Set 1 Computer Organization - Alu Data Path and Control Unit Question 1 English

A
The data path can implement arithmetic operations involving two registers.
B
The data path can implement arithmetic operations involving one register and one immediate value.
C
The data path can implement arithmetic operations involving two immediate values.
D
The data path can only implement arithmetic operations involving one register and one immediate value.
2
GATE CSE 2025 Set 1
MCQ (Single Correct Answer)
+2
-0

Consider a memory system with 1 M bytes of main memory and 16 K bytes of cache memory. Assume that the processor generates 20-bit memory address, and the cache block size is 16 bytes. If the cache uses direct mapping, how many bits will be required to store all the tag values?

[Assume memory is byte addressable, $1 \mathrm{~K}=2^{10}$, $1 \mathrm{M}=2^{20}$]

A
 $6 \times 2^{10}$
B
$8 \times 2^{10}$
C
$2^{12}$
D
214
3
GATE CSE 2025 Set 1
MCQ (Single Correct Answer)
+2
-0

A processor has 64 general-purpose registers and 50 distinct instruction types. An instruction is encoded in 32-bits. What is the maximum number of bits that can be used to store the immediate operand for the given instruction?

$$\mathrm{ADD ~ R1,~\#25 \qquad // R1 = R1 + 25}$$

A
16
B
20
C
22
D
24
4
GATE CSE 2025 Set 1
Numerical
+2
-0

A disk of size 512 M bytes is divided into blocks of 64 K bytes. A file is stored in the disk using linked allocation. In linked allocation, each data block reserves 4 bytes to store the pointer to the next data block. The link part of the last data block contains a NULL pointer (also of 4 bytes). Suppose a file of 1 M bytes needs to be stored in the disk. Assume, $1 \mathrm{~K}=2^{10}$ and $1 \mathrm{M}=2^{20}$. The amount of space in bytes that will be wasted due to internal fragmentation is ________ . (Answer in integer)

Your input ____
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