#include <stdint.h>
#include "fb.h"

static uint32_t * process_mbinfo_tag(uint32_t * mbinfo)
{
    uint32_t type = mbinfo[0];
    uint32_t size = mbinfo[1];
    switch (type)
    {
    case 0u:
        return 0u;

    case 8u:
        fb_init((uint32_t *)mbinfo[2], mbinfo[5], mbinfo[6], mbinfo[4]);
        break;
    }
    return (uint32_t *)(((uint32_t)mbinfo + size + 7u) & 0xFFFFFFF8u);
}

static void process_mbinfo(uint32_t * mbinfo)
{
    /* Skip multiboot2 boot information header. */
    mbinfo += 2u;
    do
    {
        mbinfo = process_mbinfo_tag(mbinfo);
    } while (mbinfo != (uint32_t *)0u);
}

void hos_main(uint32_t * mbinfo)
{
    process_mbinfo(mbinfo);
}