stub boot

boot/boot.s

@@ -1,14 +1,20 @@
-mov ah, 0x0e
+; only support mb1
-mov al, 'H'
+align	equ 1 << 0
-int 0x10
+info	equ 1 << 1
-mov al, 'E'
+flags	equ align | info
-int 0x10
+magic	equ 0x1BADB002
-mov al, 'Y'
+chksum	equ - (magic + flags)
-int 0x10
 
+section .multiboot
+	align	4
+			dd magic
+			dd flags
+			dd chksum
 
+global _start
+extern sysinit
+
+_start:
 	cli
+	call sysinit
 	hlt
-
-times 510 - ($ - $$) db 0
-dw 0xaa55