Ch 06: Parameter Passing and Stack Frames

Detailed analysis of stack frame construction (push bp; mov bp, sp), accessing parameters via [bp+4], [bp+6], allocating local automatic variables via [bp-2], and stack cleanup conventions (cdecl vs stdcall).

216 Questions216 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.

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Q71

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Control Flow Instructions (JA Unsigned Above Logic)Easy🔁⭐💡📄🎓VU🏛️VU

In unsigned comparison (`CMP DEST, SRC`), if the result produces `ZF = 0` AND `CF = 0`, which relationship condition between unsigned destination (`UDEST`) and unsigned source (`USRC`) is satisfied?

💻 assembly Snippet

cmp ax, bx
ja label ; Jumps if CF = 0 and ZF = 0 (AX > BX unsigned)

A.DEST = SRC
B.DEST!= SRC
C.UDEST < USRC
D.UDEST > USRC

Q72

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Control Flow Instructions (JAE Unsigned Above or Equal Logic)Easy🔁⭐💡📄🎓VU🏛️VU

In unsigned comparison (`CMP DEST, SRC`), if `CF = 0` (no borrow generated during subtraction), which relationship condition between unsigned destination (`UDEST`) and unsigned source (`USRC`) is satisfied?

💻 assembly Snippet

cmp ax, bx
jae label ; Jumps if CF = 0 (AX >= BX unsigned)

A.DEST = SRC
B.DEST!= SRC
C.UDEST < USRC
D.UDEST >= USRC

Q73

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Control Flow Instructions (JZ and JE Jump if Zero Logic)Easy🔁⭐💡📄🎓VU🏛️VU

Which conditional jump instruction is executed if the previous arithmetic or logical operation produced a zero result in the destination register (`ZF = 1`)?

💻 assembly Snippet

sub ax, ax ; AX = 0 -> ZF = 1
jz  zero_label ; Jump is taken

A.JZ / JE
B.JNZ / JNE
C.JC
D.JNC

Q74

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Control Flow Instructions (JE and JZ Equality Logic)Easy🔁⭐💡📄🎓VU🏛️VU

After executing a `CMP` instruction, which conditional jump instruction is taken if both operands are equal (`ZF = 1`)?

💻 assembly Snippet

cmp ax, bx ; Compares AX and BX
je  equal_label ; Jump taken if AX == BX (ZF = 1)

A.Jump if zero (JZ) / Jump if equal (JE)
B.Jump if equal (JE) only
C.Jump if zero (JZ) only
D.No jump available

Q75

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Multi-Word Arithmetic (Multi-Word Addition via ADD and ADC)Easy🔁⭐💡📄🎓VU🏛️VU

Multi-word or arbitrarily large numbers can be added in x86 assembly language using a proper combination of which instructions?

💻 assembly Snippet

; Adding 32-bit numbers stored in (DX:AX) and (CX:BX)
add ax, bx ; Add lower 16 bits
adc dx, cx ; Add higher 16 bits with carry

A.ADD and ADC
B.ABD and ADC
C.ADC and ADC
D.None of the Given

Q76

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Multi-Word Arithmetic (SBB Subtract with Borrow)Easy🔁⭐💡📄🎓VU🏛️VU

Just as `ADC` performs addition with carry, which instruction performs subtraction while incorporating the borrow (Carry Flag) from a previous operation?

💻 assembly Snippet

; Subtracting 32-bit numbers (DX:AX) - (CX:BX)
sub ax, bx ; Subtract lower 16 bits
sbb dx, cx ; Subtract higher 16 bits with borrow

A.SwB
B.SBB
C.SBC
D.SBBC

Q77

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Bit Manipulation (Bitwise AND Bit Testing and Masking)Easy🔁⭐💡📄🎓VU🏛️VU

Which logical instruction is primarily used as a masking operation to test or inspect whether specific target bits in a register or memory location are set?

💻 assembly Snippet

and al, 00000001b ; Masks all bits except bit 0 to test if bit 0 is set

A.AND
B.OR
C.XOR
D.NOT

Q78

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Bit Manipulation (Bitwise AND Register Operation Width)Easy🔁⭐💡📄🎓VU🏛️VU

When the 16-bit bitwise instruction `and ax, bx` is executed, how many individual bitwise `AND` logic operations occur in parallel across the register bits?

💻 assembly Snippet

and ax, bx ; Performs 16 parallel bitwise AND operations

A.16 AND
B.17 AND
C.32 AND
D.8 AND

Q79

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Bit Manipulation (Selective Bit Inversion via XOR)Easy🔁⭐💡📄🎓VU🏛️VU

Which logical instruction can be used as a masking operation to selectively invert or toggle specific bits while leaving other bits unchanged?

💻 assembly Snippet

xor al, 00001111b ; Inverts lower 4 bits of AL, leaves upper 4 bits unchanged

A.AND
B.OR
C.XOR
D.NOT

Q80

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Bit Manipulation (Four Core Masking Operations)Easy🔁⭐💡📄🎓VU🏛️VU

In assembly language programming, bit masking operations are classified into which four primary operations?

A.Clearing, XOR, Inversion and Testing
B.Clearing, Setting, Inversion and Testing
C.Clearing, XOR, AND and Testing
D.None of the Given

Ch 06: Parameter Passing and Stack Frames

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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