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.

Showing 121 – 130 of 216 Questions

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Q121

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

In assembly language bit manipulation, masking operations are categorized into four primary selective bit operations:

💻 assembly Snippet

; 1. Clear: AND ax, mask_with_zeros
; 2. Set:   OR  ax, mask_with_ones
; 3. Invert:XOR ax, mask_with_ones
; 4. Test:  AND/TEST ax, mask_with_ones

A.Selective Bit Clearing, Setting, Inversion, and Testing
B.Selective Bit Addition, Subtraction, Multiplication, and Division
C.Selective Bit Shifting, Rotating, Moving, and Swapping
D.Selective Bit Masking, Pushing, Popping, and Calling

Q122

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Bit Manipulation (SHL Left Shift Multiplication Mechanics)Easy🔁⭐💡📄🎓VU🏛️VU

Suppose register `AL` contains the decimal value 5. After performing two left shift operations (`SHL AL, 2` / `SAL AL, 2`), what is the resulting decimal value in `AL`?

💻 assembly Snippet

mov al, 5   ; AL = 5 (00000101b)
shl al, 2   ; AL = 20 (00010100b)

A.5
B.10
C.15
D.20

Q123

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Control Flow Instructions (Short, Near, and Far Jump Classification)Easy🔁⭐💡📄🎓VU🏛️VU

In x86 assembly language control flow, what are the three primary types of jump instructions based on target displacement distance?

💻 assembly Snippet

; Short Jump: -128 to +127 bytes
; Near Jump:  16-bit offset in same segment
; Far Jump:   32-bit pointer (CS:IP) across segments

A.short, near
B.short, near, far
C.near, far
D.short, far

Q124

📝 Short Q📘 CS401📑 Lec 6🏷️ 6.1. Control Flow Instructions (Short Jump Definition and Encoding)Easy⭐💡📄🎓VU🏛️VU

Define a 'short jump' in x86 assembly language control flow.

💻 assembly Snippet

; Example: jmp short my_label (Opcode: EB, Operand: 8-bit signed displacement)

Q125

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Bit Manipulation (SAR Shift Arithmetic Right Sign Preservation)Easy🔁⭐💡📄🎓VU🏛️VU

After the execution of the `SAR` (Shift Arithmetic Right) instruction, how is the Most Significant Bit (MSB) affected?

💻 assembly Snippet

mov al, 0x80 ; AL = 10000000b (-128)
sar al, 1    ; AL = 11000000b (-64, MSB retains 1)

A.The msb is replaced by a 0
B.The msb is replaced by 1
C.The msb retains its original value
D.The msb is replaced by the value of CF

Q126

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Control Flow Instructions (Absolute Far Jump Mechanics)Easy🔁⭐💡📄🎓VU🏛️VU

Unlike short and near jumps which specify relative offsets, a 'Far' jump instruction is not position-relative but is __________.

💻 assembly Snippet

jmp 0x1000:0x0020 ; Absolute Far Jump specifying new CS and IP

A.memory dependent
B.Absolute
C.temporary
D.indirect

Q127

📝 Short Q📘 CS401📑 Lec 6🏷️ 6.1. Control Flow Instructions (Inter-Segment Far Jump CS:IP Reloading)Medium⭐💡📄🎓VU🏛️VU

Why is it necessary to provide both segment and offset addresses when executing a FAR jump instruction in x86 assembly language?

💻 assembly Snippet

jmp 0x2000:0x0010 ; Far Jump: Loads CS = 0x2000 and IP = 0x0010

Q128

🧠 Long Problem📘 CS401📑 Lec 6🏷️ 6.1. Bit Manipulation (32-Bit Extended Shifting via SHL and RCL)Hard⭐💡📄🎓VU🏛️VU

Explain how multi-word extended shifting (32-bit left shift) is performed on a 16-bit x86 processor architecture, providing example assembly instructions and explaining the role of the Carry Flag (`CF`).

💻 assembly Snippet

num1: dd 40000
shl word [num1], 1   ; Shift lower word, MSB -> CF
rcl word [num1+2], 1 ; Rotate upper word through CF, CF -> LSB

Q129

🧠 Long Problem📘 CS401📑 Lec 6🏷️ Number Printing and Stack SubroutinesHard⭐💡🌟📄🎓VU🏛️VU

Write an 8088 assembly language subroutine named 'ConvertBinaryToDecimal' that receives the starting address of an ASCII binary string (e.g., '11011' or '1001') via the stack. The function must calculate its decimal equivalent and print the decimal value on the screen. Ensure proper stack frame management and register preservation.

💻 assembly Snippet

push string_addr
call ConvertBinaryToDecimal

Q130

❓ MCQ📘 CS401📑 Lec 6🏷️ Block Processing Instructions and String OperationsEasy🔁⭐💡📄🎓VU🏛️VU

In primitive form, block processing instructions operate on ________ of memory at one time.

💻 assembly Snippet

movsb

A.Whole block
B.A single cell
C.A single bit
D.Whole segment

Ch 06: Parameter Passing and Stack Frames

CS401 - Computer Architecture and Assembly Language Programming Examination Practice

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CS401 - Computer Architecture and Assembly Language Programming Examination Practice

Mid Term Examination

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