os/kernel/kernel.c

#include <kernel/tty.h>
#include <kernel/idt.h>
#include <kernel/elf.h>
#include <kernel/pic.h>
#include <kernel/heap.h>

#include <debugging.h>

/* Check if the compiler thinks you are targeting the wrong operating system. */
#if defined(__linux__)
#error "You are not using a cross-compiler, you will most certainly run into trouble"
#endif

uint8_t program[] = {
    0xba, 0x01, 0x00, 0x00, 0x00, // mov 1, %edx
    0xb8, 0xff, 0x00, 0x80, 0x00, // mov $buffer, %eax
    0xcd, 0x80, // int 0x80
    0xba, 0x00, 0x00, 0x00, 0x00, // mov 0, %edx
    0xcd, 0x80, // int 0x80
    0xb9, 0x00, 0x00, 0x80, 0x00, // mov $start, %ecx
    0xff, 0xe1, // jmp *%ecx
};

void kernel_main(void) 
{
    /* Initialize terminal interface */
    terminal_initialize();

    init_pic();
    idt_init();
    heap_init();

    run_program(program, sizeof(program));
}