Relationship between hardware architecture, machine code, and assembly language. General-purpose registers (AX, BX, CX, DX) and basic NASM syntax.
387 questionsPractice Questions →
CS401 - Computer Architecture and Assembly Language Programming
Comprehensive academic curriculum covering microprocessor architecture and low-level system programming using Intel 8088/8086 and NASM. Midterm curriculum (Lectures 1–18 / Chapters 1–8) covers processor registers, segmented memory addressing (Segment x 16 + Offset), direct/indirect addressing modes, bitwise logic, stack operations, subroutines, parameter passing, and direct text video memory access (0xB800). Finalterm curriculum (Lectures 19–45 / Chapters 9–17) covers software and hardware interrupts (IVT, PIC 8259), timer programming (PIT 8253/8254), Terminate and Stay Resident (TSR) drivers, preemptive multitasking kernels, 32-bit protected mode descriptors, and C-to-assembly interfacing.
Total Questions 3,567
CURRICULUM UNITS
Chapters & Syllabus Units (17)
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Segmented memory architecture, segment:offset physical address calculation (Segment x 16 + Offset), immediate, direct, register, and based-indexed addressing modes.
395 questionsPractice Questions →
Conditional jumps (JZ, JNZ, JC, JNC, JA, JB, JG, JL), unconditional jumps (JMP short, near, far), and CMP instruction flag impacts.
261 questionsPractice Questions →
Chapter 4
Ch 04: Bit Manipulation and Shifts
Logical operations (AND, OR, XOR, NOT, TEST), bit masking, shifts (SHL, SHR, SAL, SAR), and rotations (ROL, ROR, RCL, RCR).
198 questionsPractice Questions →
Stack mechanics (LIFO, PUSH, POP, SS:SP operation), CALL and RET instructions, near vs far subroutines, and saving CPU state.
222 questionsPractice Questions →
Passing parameters via registers, memory, and stack. Establishing standard stack frames using BP, local variable allocation, and calling conventions.
216 questionsPractice Questions →
Chapter 7
Ch 07: Video Memory & Screen Display
Memory-mapped I/O, VGA text mode memory at physical address 0xB800, character and attribute bytes, screen scrolling, and number printing.
264 questionsPractice Questions →
Block data manipulation instructions: MOVS, STOS, LODS, SCAS, CMPS, direction flag (CLD, STD), and repeat prefixes (REP, REPE, REPNE).
307 questionsPractice Questions →
Interrupt Vector Table (IVT at address 0x0000), INT instruction mechanics, IRET, BIOS service interrupts (INT 10h), and DOS services (INT 21h).
174 questionsPractice Questions →
Chapter 10
Ch 10: Hardware Interrupts and PIC 8259
Asynchronous hardware events, IN and OUT I/O port instructions, Programmable Interrupt Controller (PIC 8259), IRQ lines, and End of Interrupt (EOI).
189 questionsPractice Questions →
Programmable Interval Timer (PIT 8253/8254), IRQ0 / INT 08h timer ticks, 18.2 Hz tick frequency, and clock display utilities.
171 questionsPractice Questions →
Chapter 12
Ch 12: Terminate and Stay Resident (TSR)
Background DOS system utilities, INT 21h Function 31h, calculating paragraph sizes, hooking keyboard (INT 09h), and hotkey popups.
127 questionsPractice Questions →
Process Control Blocks (PCB), state preservation, cooperative multitasking kernels, and yielding CPU via software interrupts.
141 questionsPractice Questions →
Timer-driven task preemption, scheduling queues, round-robin dispatching, and atomic context switching routines.
90 questionsPractice Questions →
32-bit registers (EAX, EBX, ESP), Global Descriptor Table (GDT), segment selectors, 4GB linear addressing, and privilege rings.
173 questionsPractice Questions →
Chapter 16
Ch 16: Interfacing Assembly with C/C++
Calling conventions (cdecl, stdcall, fastcall), name mangling, linking NASM object files with C compilers, and returning values in EAX.
69 questionsPractice Questions →
Floppy and hard disk geometry (CHS), INT 13h BIOS disk services, Master Boot Record (MBR), and device driver structures.
183 questionsPractice Questions →
CS401 - Computer Architecture and Assembly Language Programming
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