trying to get VGA fb mode to work..

kernel/kmain.c

@@ -97,12 +97,23 @@ void load_root_program(const char* path) {
 
 void kmain(uint32_t magic, multiboot_info* mbi)  {
   disable_interrupts();
-  if (!(mbi->flags & (1 << 6))) {
+
+  vga_init(mbi->framebuffer_addr,
+    mbi->framebuffer_width,
+    mbi->framebuffer_height,
+    mbi->framebuffer_pitch,
+    mbi->framebuffer_bpp);
+
+  if (magic != 0x2BADB002) {
+    return;
+  }
+
+  // need mmap and fb info
+  if (!(mbi->flags & (1 << 6)) || !(mbi->flags & (1 << 12))) {
     return;
   } 
 
-  vga_init();
-
+  return;
   uint32_t mmap_virtual_addr = mbi->mmap_addr + 0xC0000000;
   init_pmm((void*)mmap_virtual_addr, mbi->mmap_length);
   kprintf("memory detection complete. total free memory: %dMB\n", total_free_memory() / 1024 / 1024);