#include "../includes/io.h"
#include "../includes/gdt.h"
#include "../includes/idt.h"
#include "../includes/serial.h"
#include "../includes/screen.h"
#include "../includes/loader.h"

struct multiboot_header header  __attribute((section(".multiboot"))) = (struct multiboot_header) {.magic = 0x1BADB002, .flags = 0x1, .checksum = -464367619};

void kmain()
{
	set_serial_baud_rate(COM1_PORT, 0x03);
	configure_serial_line(COM1_PORT);
	
	write_to_com(COM1_PORT, "Set up COM1 for messaging.\n");
	clear_screen();
	write_to_com(COM1_PORT, "Clearing screen.\n");
	print_banner();
	print_message("Displaying OS banner.\n", 0xF, 0x0);
	
	print_message("Installing GDT...\n", 0xF, 0x0);
	gdt_install();
	print_message("GDT installed!\n", 0xF, 0x0);
	
	//asm("xchg %bx, %bx"); // Boch's break point
	print_message("Installing IDT...\n", 0xF, 0x0);
	idt_install();
	print_message("IDT installed.\n", 0xF, 0x0);
	
	int i = 5 / 0;
	asm("hlt");
}

void print_message(unsigned char* msg, unsigned char fg, unsigned char bg)
{
	write_to_com(COM1_PORT, msg);
	draw_string(msg, fg, bg);
}