void clear_screen() {
    char* video_memory = (char*) 0xb8000;
    for (int i = 0; i < 80 * 25 * 2; i += 2) {
        video_memory[i] = ' ';      // Clear char
        video_memory[i+1] = 0x07;   // Light grey on black
    }
}

void print_string(char* str, unsigned char color, int line) {
    char* video_memory = (char*) 0xb8000;
    int offset = line * 160;

    for (int i = 0; str[i] != '\0'; i++) {
        video_memory[offset + (i * 2)] = str[i];
        video_memory[offset + (i * 2) + 1] = color;
    }
}

void main() {
    clear_screen();
    print_string("Welcome to ISCCS OS!", 0x0a, 1);
    print_string("Kernel Loaded in 32-bit Protected Mode.", 0x0f, 2);
    
    while(1);
}