(* Release 3.10 *)
(*-------------------------------------------------------------------------*
*                                                                          *
*  BIOS.DEF - Modula-2 interface to BIOS.H                                 *
*                                                                          *
*  COPYRIGHT (C) 1989..1992 Clarion Software Corporation.                  *
*  All Rights Reserved                                                     *
*                                                                          *
*--------------------------------------------------------------------------*)

(*# project("#set tsc='on'") *)
(*# call(o_a_size=>off, o_a_copy=>off, c_conv=>on, result_optional=>on) *)
(*# module(implementation=>off, init_code=>off) *)
(*# name(prefix=>c) *)


DEFINITION MODULE bios;

CONST

(* Serial Port Initializers                                *)

  _COM_INIT             = 0; (* init serial port           *)
  _COM_SEND             = 1; (* send character             *)
  _COM_RECEIVE          = 2; (* receive character          *)
  _COM_STATUS           = 3; (* get serial port status     *)

(* character size initializers                             *)
  _COM_CHR7             = BITSET(2); (* 7 bits characters  *)
  _COM_CHR8             = BITSET(3); (* 8 bits characters  *)

(* stop bit values                                         *)
  _COM_STOP1            = BITSET(0); (* 1 stop bit         *)
  _COM_STOP2            = BITSET(4); (* 2 stop bits        *)

(* parity initializers                                     *)
  _COM_NOPARITY         = BITSET(0); (* no parity          *)
  _COM_ODDPARITY        = BITSET(8); (* odd parity         *)
  _COM_EVENPARITY       = BITSET(24);(* even parity        *)

(* baud rate initializers                                  *)
  _COM_110              = BITSET(0);   (* 110 Baud         *)
  _COM_150              = BITSET(32);  (* 150 Baud         *)
  _COM_300              = BITSET(64);  (* 300 Baud         *)
  _COM_600              = BITSET(96);  (* 600 Baud         *)
  _COM_1200             = BITSET(128); (* 1200 Baud        *)
  _COM_2400             = BITSET(160); (* 2400 Baud        *)
  _COM_4800             = BITSET(192); (* 4800 Baud        *)
  _COM_9600             = BITSET(224); (* 9600 Baud        *)

(* constants for BIOS disk support                         *)

(* disk services                                           *)
  _DISK_RESET           = 0; (* reset disk controller      *)
  _DISK_STATUS          = 1; (* get disk status            *)
  _DISK_READ            = 2; (* read disk sectors          *)
  _DISK_WRITE           = 3; (* write disk sectors         *)
  _DISK_VERIFY          = 4; (* verify disk sectors        *)
  _DISK_FORMAT          = 5; (* format disk track          *)

(* constants for BIOS keyboard support                     *)
  _KEYBRD_READ          = 0; (* read next character from keyboard *)
  _KEYBRD_READY         = 1; (* check for keystroke        *)
  _KEYBRD_SHIFTSTATUS   = 2; (* get current shift key status *)

(* constants for BIOS printer support                      *)
  _PRINTER_WRITE        = 0; (* write character to printer *)
  _PRINTER_INIT         = 1; (* initialize printer         *)
  _PRINTER_STATUS       = 2; (* get printer status         *)

(* constants for BIOS time of day support                  *)
  _TIME_GETCLOCK        = 0; (* get current clock count    *)
  _TIME_SETCLOCK        = 1; (* set current clock count    *)

TYPE
  diskinfo_t = RECORD
                 drive    : CARDINAL;
                 head     : CARDINAL;
                 track    : CARDINAL;
                 sector   : CARDINAL;
                 nsectors : CARDINAL;
                 buffer   : ADDRESS;
               END;

PROCEDURE bioscom(cmd:CARDINAL;byte:BYTE;port:CARDINAL):CARDINAL;
PROCEDURE biosdisk(cmd,drive,head,track,sector,nsecs:CARDINAL;buf:ADDRESS):CARDINAL;
PROCEDURE biosequip():BITSET;
PROCEDURE bioskey(cmd:CARDINAL):CARDINAL;
PROCEDURE biosmemory():CARDINAL;
PROCEDURE biosprint(cmd:CARDINAL;byte:BYTE;port:CARDINAL):CARDINAL;
PROCEDURE biostime(cmd:CARDINAL;newtime:LONGCARD);

PROCEDURE _bios_equiplist():CARDINAL;
PROCEDURE _bios_keybrd(cmd:CARDINAL):CARDINAL;
PROCEDURE _bios_memsize():CARDINAL;
PROCEDURE _bios_printer(cmd,port,data:CARDINAL):CARDINAL;
PROCEDURE _bios_serialcom(cmd,port,data:CARDINAL):CARDINAL;
PROCEDURE _bios_timeofday(cmd:CARDINAL;VAR time:LONGCARD):CARDINAL;
PROCEDURE _bios_disk(cmd:CARDINAL;VAR info:diskinfo_t):CARDINAL;

END bios.