1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
* Copyright (C) 2002-2021 The DOSBox Team
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef DOSBOX_TIMER_H
#define DOSBOX_TIMER_H
/* underlying clock rate in HZ */
#include <SDL.h>
#define PIT_TICK_RATE_IBM 1193182
#define PIT_TICK_RATE_PC98_8MHZ 1996800
#define PIT_TICK_RATE_PC98_10MHZ 2457600
extern unsigned long PIT_TICK_RATE;
#define GetTicks() SDL_GetTicks()
typedef void (*TIMER_TickHandler)(void);
/* Register a function that gets called every time if 1 or more ticks pass */
void TIMER_AddTickHandler(TIMER_TickHandler handler);
void TIMER_DelTickHandler(TIMER_TickHandler handler);
/* This will add 1 millisecond to all timers */
void TIMER_AddTick(void);
/* Functions for the system control port 61h */
bool TIMER_GetOutput2();
void TIMER_SetGate2(bool in);
#endif
|
