Ch 13: Multitasking & Cooperative Kernels

Covers thread and process abstractions at the assembly level, initializing independent task stacks, switching execution contexts via register swapping, and cooperative scheduling algorithms.

141 Questions141 MCQs0 Short Questions0 Long Questions

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CS401 - Computer Architecture and Assembly Language Programming Examination Practice

Timed practice exam simulation for CS401 - Computer Architecture and Assembly Language Programming.

Showing 101 – 110 of 141 Questions

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Q101

📝 Short Q📘 CS401📑 Lec 13🏷️ Stack Operations during CALL and RET InstructionsMedium🔁⭐💡📄🎓VU🏛️VU

How do the CALL and RET instructions interact with the hardware stack to manage subroutine calls and returns in 8088 assembly language?

💻 assembly Snippet

call my_subroutine

my_subroutine:
    ; Subroutine body
    ret

Q102

📝 Short Q📘 CS401📑 Lec 13🏷️ Emulated Jumps vs Native Hardware CALL/RET MechanismHard🔁⭐💡📄🎓VU🏛️VU

Can indirect jump instructions (such as 'JMP AX') theoretically be used to emulate subroutine calls? Explain why the hardware CALL/RET mechanism is preferred.

💻 assembly Snippet

mov ax, return_here
jmp my_proc
return_here:

Q103

📝 Short Q📘 CS401📑 Lec 13🏷️ RET Instruction Mechanics and Stack-Based Return AddressingEasy🔁⭐💡📄🎓VU🏛️VU

Explain the operation of the RET (Return) instruction in 8088 assembly language. Why does RET require no explicit target address or operands?

💻 assembly Snippet

ret

Q104

📝 Short Q📘 CS401📑 Lec 13🏷️ Parameter Passing Concepts and Register Parameter PassingMedium🔁⭐💡📄🎓VU🏛️VU

What are parameters in assembly language subroutines, and why are they necessary when designing reusable procedures (e.g., sorting routines)? What is the most straightforward method for parameter passing?

💻 assembly Snippet

mov bx, array_ptr
mov cx, array_size
call bubble_sort

Q105

📝 Short Q📘 CS401📑 Lec 13🏷️ Near vs Far CALL Stack MechanicsMedium🔁⭐💡📄🎓VU🏛️VU

Compare Near (Intra-Segment) Direct CALL and Far (Inter-Segment) Direct CALL in 8088 assembly language regarding saved context and stack pointer operations.

💻 assembly Snippet

call near_proc
call far_proc

Q106

📝 Short Q📘 CS401📑 Lec 13🏷️ Near RET vs Far RETF Instructions and Parameter Cleanup (RET n)Medium🔁⭐💡📄🎓VU🏛️VU

Compare Near RET (Intra-Segment Return) and Far RETF (Inter-Segment Return) instructions in 8088 assembly language, and explain the function of the optional immediate pop operand in instructions like 'RET n'.

💻 assembly Snippet

ret 4
retf 4

Q107

❓ MCQ📘 CS401📑 Lec 13🏷️ BIOS INT 10h Video Service 0x0C (Write Pixel)Medium⭐💡📄🎓VU🏛️VU

When invoking BIOS INT 10h to write a graphics pixel on screen, what value must be loaded into register AH?

💻 assembly Snippet

mov ah, 0x0c
mov al, 0x0f  ; White pixel
mov cx, 100   ; X coordinate
mov dx, 50    ; Y coordinate
int 0x10

A.0Ch
B.0Bh
C.1Ch
D.2Ch

Q108

❓ MCQ📘 CS401📑 Lec 13🏷️ VESA VBE 2.0 Graphics StandardEasy⭐💡📄🎓VU🏛️VU

VESA VBE 2.0 (Video Electronics Standards Association Video BIOS Extension) is a standard for:

A.High resolution Mode
B.Low resolution Mode
C.Medium resolution Mode
D.Very High resolution Mode

Q109

❓ MCQ📘 CS401📑 Lec 13🏷️ VESA 16-Bit High Color RGB Layout (5:6:5)Easy⭐💡📄🎓VU🏛️VU

VESA (Video Electronics Standards Association) organizes 16 bits per pixel in 16-bit High Color graphics mode using which bit layout format?

A.5:5:5 format
B.5:6:5 format
C.6:5:6 format
D.5:6:7 format

Q110

❓ MCQ📘 CS401📑 Lec 13🏷️ VESA VBE 2.0 Graphics StandardEasy🔁⭐💡📄🎓VU🏛️VU

VESA VBE 2.0 (Video Electronics Standards Association) is a standard for:

A.High Resolution Mode
B.Low Resolution Mode
C.Very High Resolution Mode
D.Medium Resolution Mode

Ch 13: Multitasking & Cooperative Kernels

CS401 - Computer Architecture and Assembly Language Programming Examination Practice

Mid Term Examination

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CS401 - Computer Architecture and Assembly Language Programming Examination Practice

Mid Term Examination

Final Term Examination

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