Reboot after keypress instead of halting on boot failure

inc/booterr.asm

@@ -1,8 +1,9 @@
 errcll:	; put return address into dx
 	pop dx
 errjmp:	call dmpdx
-hlt:	hlt
-	jmp hlt
+	xor ax, ax
+	int 0x16
+	int 0x19
 dmpdx:	; setup bx and ah for int 10h call
 	xor bx, bx
 	mov ah, 0x0e