Ch 01: Introduction to Assembly Language

Foundational study of Intel x86 microprocessors, accumulator registers, base registers, count registers, data registers, flags register, and instruction execution cycles.

387 Questions387 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 211 – 220 of 387 Questions

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Q211

❓ MCQ📘 CS401📑 Lec 1🏷️ Unidirectional Address Bus DirectionalityEasy🔁⭐💡📄🎓VU🏛️VU

In computer system bus architecture, memory address signals on the address bus always travel in which direction?

A.Processor to memory
B.Memory to processor
C.Memory to memory
D.None of the given options

Q212

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.2. Internal RegistersEasy🔁⭐💡📄🎓VU🏛️VU

In 8088/x86 CPU architecture, register CX is primarily designated and used as a:

💻 assembly Snippet

mov cx, 10
loop_start:
; body
loop loop_start

A.Counter register
B.Flag register
C.Base register
D.Destination register

Q213

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.5. Arithmetic & LogicEasy🔁⭐💡📄🎓VU🏛️VU

When the operand of a DIV instruction is 16 bits wide, where is the implicit 32-bit dividend stored?

💻 assembly Snippet

div bx

A.AX register
B.The concatenation of DX and AX
C.The concatenation of ES and AX
D.The concatenation of DS and BX

Q214

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.1. Bus ArchitectureEasy🔁⭐💡📄🎓VU🏛️VU

In computer system bus architecture, the Data Bus operates in which directional mode?

A.Uni-directional
B.Bi-directional
C.Non-directional
D.None of the given options

Q215

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.1. Bus ArchitectureEasy🔁⭐💡📄🎓VU🏛️VU

Regarding assembler software development tools, which of the following statements is true?

A.Assembler converts mnemonics to the corresponding OPCODE
B.Assembler converts OPCODE to the corresponding mnemonics
C.Assembler executes the assembly code all at once
D.Assembler executes the assembly code step by step

Q216

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.3. Data MovementMedium🔁⭐💡📄🎓VU🏛️VU

If '0xBB' is the OPCODE for moving a 16-bit immediate constant to the AX register, what is the complete hexadecimal byte encoding (using little-endian format) for the instruction 'MOV AX, 336' (where 336 decimal equals 0x0150)?

💻 assembly Snippet

mov ax, 336  ; Opcode 0xBB, Immediate 0x0150 -> Byte sequence: BB 50 01

A.0xBB0150
B.0x5001BB
C.0x01BB50
D.0xBB5001

Q217

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.3. Data MovementEasy🔁⭐💡📄🎓VU🏛️VU

In the assembly instruction 'MOV AX, 5', how many operands are specified?

💻 assembly Snippet

mov ax, 5

Q218

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.2. Internal RegistersEasy🔁⭐💡📄🎓VU🏛️VU

In x86 assembly language programming, the CX register is primarily used as a:

💻 assembly Snippet

mov cx, 10
loop_label:
loop loop_label

A.Source register
B.Counter register
C.Index register
D.Pointer register

Q219

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.5. Arithmetic & LogicEasy🔁⭐💡📄🎓VU🏛️VU

When performing an 8-bit division ('DIV reg8'), where must the implicit 16-bit dividend be placed prior to executing the instruction?

💻 assembly Snippet

mov ax, 100
mov bl, 5
div bl       ; AL = 20 (quotient), AH = 0 (remainder)

A.AX
B.BX
C.CX
D.DX

Q220

❓ MCQ📘 CS401📑 Lec 1🏷️ 1.2. Internal RegistersEasy🔁⭐💡📄🎓VU🏛️VU

In 8088 CPU architecture, index registers (SI and DI) are primarily used to store:

A.Memory offsets
B.Segment base addresses
C.Immediate constants
D.Flag statuses

Ch 01: Introduction to Assembly Language

CS401 - Computer Architecture and Assembly Language Programming Examination Practice

Mid Term Examination

Final Term Examination

CS401 - Computer Architecture and Assembly Language Programming Examination Practice

Mid Term Examination

Final Term Examination

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