// Starts system
void
init_system(multiboot_info_t* bi)
{
// Start display
vga_init();
printk(" KiteOS V1.0 --- Initializing \n");
// PIT-less wait to show user boot
for(int i=0;i<64821125;i++);
vga_color(0x3, 0x0);
printk("-- STARTING LOWLEVEL KERNEL --\n");
vga_color(0x5, 0x0);
printk("!* Initiating GDT\n");
gdt_init();
printk("!* Initiating IDT\n");
idt_init();
printk("!* Installing Exceptions\n");
isr_init();
vga_color(0x4, 0x0);
printk("*** ENTERTED PROTECTED MODE ***\n");
vga_color(0x5, 0x0);
printk("!* Initiating IRQ\n");
irq_init();
printk("!* Starting PIT\n");
pit_init();
printk("!* Starting RTC\n");
rtc_init();
printk("!* Restoring Interrupts\n");
__asm__ __volatile__ ("sti");
vga_color(0x3, 0x0);
printk("-- STARTING LOWLEVEL DRIVERS --\n");
vga_color(0x5, 0x0);
printk("!* Starting physical memory manager\n");
kalloc_init((void*)bi->mmap_addr, (unsigned long)bi->mmap_length);
printk("!* Starting keyboard driver\n");
kb_init();
printk("!* Starting IDE driver\n");
ide_init(0x1F0, 0x3F6, 0x170, 0x366);
vga_color(0x4, 0x0);
printk("*** Initialized system successfully ***\n");
}
/* produce two octets to be written in to VGA memory to set a character, foreground and background color */
uint16_t vga_character(char character) {
return character | vga_color(VGA_FOREGROUND_COLOUR, VGA_BACKGROUND_COLOUR) << 8;
}