blob: e039cf4b2d7544d811f34a07f0c0246e4cd8b805 (
plain)
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
49
50
51
52
53
54
55
|
/*
* Copyright (C) 1996-1998 Szeredi Miklos 2006 Anton Romanov
* Email: mszeredi@inf.bme.hu
*
* 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. See the file COPYING.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "zxconfig.h"
#include "sptiming.h"
#include "interf.h"
/* not precise but .... anyway this is used only when not playing
* sound ... */
long shouldbe_tick;
void spti_init(void){
spti_reset();
}
void spti_sleep(unsigned long usecs){
/* unsigned long now,need;
now = *rb->current_tick;
need = now + usecs;
rb -> sleep ( need - now );*/
rb->sleep ( usecs );
}
void spti_reset(void){
shouldbe_tick = *rb -> current_tick;
}
void spti_wait(void){
long rem;
long now;
now = *rb -> current_tick;
shouldbe_tick+=SKIPTICKS;
rem = shouldbe_tick - now;
if(rem > 0) {
if(rem > SKIPTICKS) rem = SKIPTICKS;
spti_sleep((unsigned long) rem);
}
if(rem == SKIPTICKS || rem < -10 * SKIPTIME) spti_reset();
}
|
