NPTEL Computer Architecture Week 2 Assignment Answers 2024

NPTEL Computer Architecture Week 2 Assignment Answers 2024

1. What is the smallest positive denormal number in the IEEE 754 standard?

• 2^-126
• 2^-127
• 2^-149
• 2^-150

Answer :- Click Here

2. Consider the following assembly code in the SimpleRISC ISA.
movh r0, 0xFB12
addu r0, r0, 0xCDEF
What is the final value of r0 after executing this code?

• 0xCDEFFB12
• 0xFB12CDEF
• 0x0001C901
• 0xFBCD12EF

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3. Consider the following SimpleRISC assembly code.

    mov r1, 10
    mov r3, 5
    st r1, [sp]
    add r4, r1, r3
    ld r2, [sp]

What are the contents of r2 and r4 after executing these instructions?

• r2 = 10, r4 = 15
• r2 = 15, r4 = 10
• r2 = 10, r4 = 10
• r2 = 15, r4 = 15

Answer :- 

4. Consider the following SimpleRISC instructions:

    mov r1, 20
    lsl r2, r1, 2

What is the content of r2 after executing these instructions?

• 80
• 10
• 40
• 5

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5. The SimpleRISC ISA has ________ registers.

• 15
• 16
• 17
• None of the options

Answer :- 

6. Which of the following is not a shift instruction in the SimpleRisc ISA?

• lsl
• asr
• asl
• lsr

Answer :- 

7. The bgt instruction bases its outcome on the value of ____________ flag(s).

• Both E and GT
• GT
• E
• None of the options

Answer :- 

8. A fixed-point number has a fixed number of digits ___________.

• After the decimal point.
• Before the decimal point.
• Both before and after the decimal point.
• None of the options

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9. UTF-32 uses __ bytes for every character.

• 2
• 4
• 6
• 8

Answer :- 

10. How many bits are used for the exponent in the IEEE 754 standard for double precision numbers?

• 11
• 8
• 52
• 10

Answer :- Click Here