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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Q211

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.3. Attribute Byte FormatEasy🔁⭐💡📄🎓VU🏛️VU

In the 8-bit text-mode character attribute byte, which bit controls the Green component of the foreground color?

A.Bit 1
B.Bit 5
C.Bit 3
D.Bit 7

Q212

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Text Mode Display MemoryEasy🔁⭐💡📄🎓VU🏛️VU

In 80x25 text-mode Video RAM, which formula calculates the memory offset for a character cell at row position 'y' and column position 'x'?

A.location = (y_pos * 80 + x_pos) * 3
B.location = (y_pos * 80 + x_pos) * 2
C.location = (y_pos * 25 + x_pos) * 2
D.location = (y_pos * 80 + x_pos) / 2

Q213

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.2. ASCII Character CodingEasy🔁⭐💡📄🎓VU🏛️VU

In the assembly instruction 'MOV WORD [ES:160], 0x1230' written to Video RAM in text mode, what character is represented by the lower byte value 0x30?

💻 assembly Snippet

mov word [es:160], 0x1230

Q214

❓ MCQ📘 CS401📑 Lec 6🏷️ 6.1. Text Mode Display MemoryMedium🔁⭐💡📄🎓VU🏛️VU

In 80x25 text mode, at which screen location will the instruction 'MOV WORD [ES:160], 0x1230' render a character?

💻 assembly Snippet

mov word [es:160], 0x1230

A.First column of second row
B.Second column of first row
C.Second column of second row
D.First column of third row

Q215

📝 Short Q📘 CS401📑 Lec 6🏷️ 6.1. Text Mode Display MemoryEasy⭐💡📄🎓VU🏛️VU

What is ASCII (American Standard Code for Information Interchange), and why is character encoding essential in computer systems?

💻 assembly Snippet

; Displaying ASCII character 'A' (ASCII 65 / 0x41) in Assembly
mov al, 'A'       ; Load ASCII value 0x41 into AL
mov ah, 0x07      ; Load light gray text attribute into AH
mov [es:0], ax    ; Print 'A' at top-left of video memory

Q216

📝 Short Q📘 CS401📑 Lec 6🏷️ 6.1. Text Mode Display MemoryEasy⭐💡📄🎓VU🏛️VU

What is plain ASCII text format, and why is it widely used for system software and data exchange?

Ch 06: Parameter Passing and Stack Frames

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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