How Interrupt Handlers Work: Building a Simple IRQ Simulator in C | System Programming

Описание: Watch how we build a simple but effective interrupt request (IRQ) simulator in C that demonstrates the fundamentals of interrupt handling. This code creates a realistic simulation of how a computer handles different hardware interrupts like keyboard, mouse, timer, and audio events in real-time.
🔧 Code Breakdown:

Simple interrupt simulation using 4 IRQ types
Random interrupt generation every second
Thread-based interrupt simulation
Function pointer implementation for ISR handling

The code is just 50~ lines but teaches core concepts of:

Hardware interrupt simulation
ISR (Interrupt Service Routines)
Basic threading in C
Function pointers for interrupt vectors

Perfect for beginners learning about system programming or students studying operating system concepts.
⚡ What the code actually does:

Runs an infinite loop generating random interrupts
Handles 4 different types of hardware interrupts
Uses a vector table to map interrupts to handlers
Prints which interrupt is being handled in real-time