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# CS401 Mid Term Papers Spring 2019 (15~28-June 2019) & All Solved Past Papers, Solved MCQs & Helping Material

CS401 Mid Term Papers Spring 2019 (15~28-June 2019) & All Solved Past Papers, Solved MCQs & Helping Material

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Cs401 Current Paper

Past paper : 2 Mcqs, 1 question of 3 marks

2 questions of marks 3
1- what colors are represented by 0th, 1st and 2nd bits from the least significant side in attribute byte.

3 Questions of 5 marks:
Q1- explain which one of the following conditions are legal/illegal with reason:
I) mov ax, bx
II) mov 10, ax
III) mov bx, [num2]
IV) mov [num1],[num2]

Q2- identify 2 prefixes meaningful with CMPS instructions.

Q3- what will be the value of destination operand if ax=00110011 and bx=00010001
I) And ax,bx
II) OR ax,bx
III) Xor ax,2nd
IV) test ax,bx

asalam u alikum Cs401 current paper.. 10 mcqs from past moaaz files and others were conceptual.... 2 questions of 3 marks and 3 questions of 5 marks... Write instructions that copy the content of 0025 into Ax register. Marks 3 different between interrupt number and interrupt handler marks 3 In direct addressing mode how memory to memory transfer data marks 5. Write a program to add first 5, odd number and store the sum in dx 5 marks. Overall paper was tough

Cs 401 done

Mcqs from the past papers ans some conceptual as well

Question 1Repeated parity bit

Queztion 2 Direction of the data bus in Read and write

Some values are given had to add multiply and subtract in the code of assembly language like 27,18 add these two values then result will multiply by 76 and the whole result will be substrates by 5 all you have to do in assemble language

Question Ax>Bx>cx&&Bx>DX<CA

AX=5

QUESTION Rep prefix

Over all not tough not easy

Cs401

Mcqs 80% from siddhu,

Subjective me stack

Push pop ka ek program

Nomenclature

Rotations

Memory access

My Cs 401 Paper

Total Question 23

Mcqs 18

Subjective 05

80-90% Mcqs From Moaaz and Waqar Siddu Past Papers.

Subjective:

How can we represent Indexed Register Indirect + Offset. Show with Example (2 Marks)

How Nomenclature can be observed in computer architecture? Explain with 2 Examples (2 Marks)

LDS SI [BP+4] explain this statement? . (3 Marks)

In which situation we have to use short jump? Explain with Example (3 Marks)

How we can differentiate inter-segment call with intra-segment call? (5 Marks)

Cs401 current paper..
10 mcqs from past moaaz files and others were conceptual.... 2 questions of 3 marks and 3 questions of 5 marks...
Write instructions that copy the content of 0025 into Ax register. Marks 3 different between interrupt number and interrupt handler marks 3
In direct addressing mode how memory to memory transfer data marks 5. Write a program to add first 5, odd number and store the sum in dx 5 marks. Overall paper was tough

Cs401

Mcqs almost from past moaaz file

Subjective

1. Example of Based index indirect method 3marks

2. Convert pseudo code to assembly language code

If AX>BX AND BX>CX

{

CX=1

}

3. Stack is Data structure, while keep in mind how is CALL similar to PUSH operation.

4. Indirect method different techniques, kuch yad nahi

5. Bhol gaya

#CS401 #Midterm_Current_Paper_Spring_2019 15 June 8 AM
10 mcqs from past moaaz files and others were conceptual....
2 questions of 3 marks and 3 questions of 5 marks...
Write instructions that copy the content of 0025 into Ax register. Marks 3
different between interrupt number and interrupt handler marks 3
In direct addressing mode how memory to memory transfer data marks 5.
Write a program to add first 5, odd number and store the sum in dx 5 marks.
Overall paper was tough

Cs401 current paper..
10 mcqs from past moaaz files and others were conceptual....
2 questions of 3 marks and 3 questions of 5 marks...
Write instructions that copy the content of 0025 into Ax register. Marks 3
different between interrupt number and interrupt handler marks 3
In direct addressing mode how memory to memory transfer data marks 5.
Write a program to add first 5, odd number and store the sum in dx 5 marks.
Overall paper was tough

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