1;; -----------------------------------------------------------------------
2;;
3;;   Copyright 1994-2008 H. Peter Anvin - All Rights Reserved
4;;
5;;   This program is free software; you can redistribute it and/or modify
6;;   it under the terms of the GNU General Public License as published by
7;;   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8;;   Boston MA 02111-1307, USA; either version 2 of the License, or
9;;   (at your option) any later version; incorporated herein by reference.
10;;
11;; -----------------------------------------------------------------------
12
13;;
14;; bios.inc
15;;
16;; Header file for the BIOS data structures etc.
17;;
18
19%ifndef _BIOS_INC
20%define _BIOS_INC
21
22		; Interrupt vectors
23		absolute 4*1Ch
24BIOS_timer_hook	resd 1
25
26		absolute 4*1Eh
27fdctab		equ $
28fdctab1		resw 1
29fdctab2		resw 1
30
31		absolute 0400h
32serial_base	resw 4			; Base addresses for 4 serial ports
33		absolute 0413h
34BIOS_fbm	resw 1			; Free Base Memory (kilobytes)
35		absolute 0462h
36BIOS_page	resb 1			; Current video page
37		absolute 046Ch
38BIOS_timer	resw 1			; Timer ticks
39		absolute 0472h
40BIOS_magic	resw 1			; BIOS reset magic
41                absolute 0484h
42BIOS_vidrows    resb 1			; Number of screen rows
43
44%endif ; _BIOS_INC
45