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;; -----------------------------------------------------------------------
;;
;; Copyright 1994-2008 H. Peter Anvin - All Rights Reserved
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, Inc., 53 Temple Place Ste 330,
;; Boston MA 02111-1307, USA; either version 2 of the License, or
;; (at your option) any later version; incorporated herein by reference.
;;
;; -----------------------------------------------------------------------
;;
;; bios.inc
;;
;; Header file for the BIOS data structures etc.
;;
%ifndef _BIOS_INC
%define _BIOS_INC
global BIOS_fbm, BIOS_timer
absolute 4*1Eh ; In the interrupt table
fdctab equ $
fdctab1 resw 1
fdctab2 resw 1
absolute 0400h
serial_base resw 4 ; Base addresses for 4 serial ports
absolute 0413h
BIOS_fbm resw 1 ; Free Base Memory (kilobytes)
absolute 0462h
BIOS_page resb 1 ; Current video page
absolute 046Ch
BIOS_timer resw 1 ; Timer ticks
absolute 0472h
BIOS_magic resw 1 ; BIOS reset magic
absolute 0484h
BIOS_vidrows resb 1 ; Number of screen rows
%endif ; _BIOS_INC
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