Ch 02: 16-Bit Segmented Memory Model & Addressing Modes

Deep dive into 16-bit real mode memory segmentation (CS, DS, SS, ES), pointer/index registers (SP, BP, SI, DI), and calculating effective physical addresses across memory boundaries.

395 Questions395 MCQs0 Short Questions0 Long Questions

🎯 Exam Practice Papers

CS401 - Computer Architecture and Assembly Language Programming Examination Practice

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

Showing 271 – 280 of 395 Questions

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Q271

❓ MCQ📘 CS401📑 Lec 2🏷️ Parity Concept and Parity Flag (PF)Easy⭐💡📄🎓VU🏛️VU

Which of the following statements is true regarding Parity in binary computer arithmetic?

A.Parity refers to the count of '1' bits in a binary representation
B.Parity is categorized as either odd parity or even parity
C.Both A and B
D.None of the given options

Q272

❓ MCQ📘 CS401📑 Lec 2🏷️ Auxiliary Carry Flag (AF) Nibble Carry MechanicsEasy🔁⭐💡📄🎓VU🏛️VU

During addition or subtraction, if a carry or borrow occurs from bit 3 to bit 4 (between lower and upper nibbles), which CPU flag is set?

💻 assembly Snippet

add al, bl

A.Auxiliary Carry Flag (AF)
B.Carry Flag (CF)
C.Trap Flag (TF)
D.Parity Flag (PF)

Q273

❓ MCQ📘 CS401📑 Lec 2🏷️ Zero Flag (ZF) Condition ReportingEasy🔁⭐💡📄🎓VU🏛️VU

Which status flag in the FLAGS register is set to 1 if the result of the previous arithmetic or logical instruction is zero?

💻 assembly Snippet

sub ax, ax

A.Carry Flag (CF)
B.Parity Flag (PF)
C.Direction Flag (DF)
D.Zero Flag (ZF)

Q274

❓ MCQ📘 CS401📑 Lec 2🏷️ Assembly Language Comment Syntax (;)Easy🔁⭐💡📄🎓VU🏛️VU

In x86 assembly language, which symbol is used to indicate the start of a single-line comment?

💻 assembly Snippet

; This is a single-line comment in x86 assembly

A.Colon (:)
B.Hyphen (-)
C.Semicolon (;)
D.Asterisk (*)

Q275

❓ MCQ📘 CS401📑 Lec 2🏷️ Assembly Instruction Operand CountEasy🔁⭐💡📄🎓VU🏛️VU

In the assembly language instruction 'MOV AX, 5', how many total operands are present?

💻 assembly Snippet

mov ax, 5

Q276

❓ MCQ📘 CS401📑 Lec 2🏷️ Control Flags vs Status FlagsEasy🔁⭐💡📄🎓VU🏛️VU

The Direction flag (DF), Interrupt flag (IF), and Trap flag (TF) are classified as control flags that are:

A.Used for mathematical operations
B.Not used for mathematical operations
C.Status flags
D.Parity flags

Q277

❓ MCQ📘 CS401📑 Lec 2🏷️ Memory Address Space Selection vs I/O SpaceEasy⭐💡📄🎓VU🏛️VU

Memory address space is selected when which of the following instructions is executed by the processor (in contrast to I/O port address space selection via IN/OUT instructions)?

💻 assembly Snippet

mov ax, [num1]

A.MOV
B.DEC
C.IN
D.ADD

Q278

❓ MCQ📘 CS401📑 Lec 2🏷️ 32-Bit Processor Accumulator Register WidthEasy🔁⭐💡📄🎓VU🏛️VU

A 32-bit microprocessor architecture features an accumulator register (EAX) with a width of:

A.8 Bits
B.16 Bits
C.32 Bits
D.64 Bits

Q279

❓ MCQ📘 CS401📑 Lec 2🏷️ CX Counter Register RoleEasy🔁⭐💡📄🎓VU🏛️VU

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

💻 assembly Snippet

mov cx, 10
my_loop:
    loop my_loop

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

Q280

❓ MCQ📘 CS401📑 Lec 2🏷️ I/O Address Space Selection via IN/OUT InstructionsEasy🔁⭐💡📄🎓VU🏛️VU

Peripheral / I/O address space is selected when which of the following instructions is executed by the processor?

💻 assembly Snippet

in al, 0x60

A.MOV
B.DEC
C.IN
D.ADD

Ch 02: 16-Bit Segmented Memory Model & Addressing Modes

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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