NPTEL C Programming And Assembly Language Assignment Solutions
NPTEL C Programming And Assembly Language Week 1 Assignment Answers 2023
1. What are the values of the registers AX and BX after the following assembly code executes ?
- AX=2, BX=1
- AX=1, BX=1
- AX=3, BX=1
- AX=2, BX=3
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2. What is the value of the zero flag at the end of this program’s execution
- 0
- 1
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3. For the following instructions
When MOV AL,01 is reached it is necessarily the case that CL= 0
- True
- False
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4. Say the following 7 bytes are stored in the extra segment
with address of the last element 81 being stored at START_ADDR and the addresses increasing as you go up the list from the bottom up. Consider the following program to search for 47.
What is the value of ECX when REPNE SCASB finishes executing?
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5. Say the opcode size of REP MOVSB is 1 byte and at present EIP=0x0F21 and ECX=09. The instruction REP MOVSB is executed. After the execution, we observe that CX=00. Then, EIP= _ ?
- 0x0F2B
- 0x0F29
- 0x0F22
- 0x0F2A
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6. NOTE:- ECS=0x0141, EDS=0x1600, ESS=0x2512, EES=0x3509, EAX=0x0116, EBP=0x4567.
Assume that there are two arrays as follows:-
After the following snipped code executes, what will be the values in Array-1, Array-2?
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7. The value stored in the registers EAX, EDX after the execution of the following code snippet is
- EAX=06, EDX=00
- EAX=12, EDX=00
- EAX=06, EDX=02
- EAX=12, EDX=02
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8. If EAX=0x2117, ECX=0x2434, ESS=0x1041 and ESP=0xF612. Analyse the following assembly code snippet. What is the value of ESP after the following code executes?
- 0xF610
- 0xF611
- 0xF612
- 0xF613
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9. If ECS=0x0141, EDS=0x1634, ESS=0x2512, EES=0x3509, EAX=0x0116, EBP=0x4567, the Address accessed by the instruction [EAX+0x0026] is
- 0x1647C
- 0x1647D
- 0x01771
- 0x01770
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10. The value stored in the ECX register after the above code snippet executes:
- 6
- 7
- 5
- 4
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11. The value stored in the register EDI after the above code snippet executes:
- 0x0213
- 0x0214
- 0x0215
- 0x0216
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12. What is the value of the Direction Flag after the above code snippet executes
- 0
- 1
- Cannot say
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| Course Name | C Programming And Assembly Language |
| Category | NPTEL Assignment Answer |
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