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root/cebix/SIDPlayer/src/sid.h
Revision: 1.3
Committed: 2003-04-11T20:23:02Z (21 years, 3 months ago) by cebix
Content type: text/plain
Branch: MAIN
Changes since 1.2: +4 -1 lines
Log Message:
- added support for Catweasel SID
- replay timing is now based on CIA timer value, removed replayfreq

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * sid.h - 6581 SID emulation
3     *
4 cebix 1.3 * SIDPlayer (C) Copyright 1996-2003 Christian Bauer
5 cebix 1.1 *
6     * This program is free software; you can redistribute it and/or modify
7     * it under the terms of the GNU General Public License as published by
8     * the Free Software Foundation; either version 2 of the License, or
9     * (at your option) any later version.
10     *
11     * This program is distributed in the hope that it will be useful,
12     * but WITHOUT ANY WARRANTY; without even the implied warranty of
13     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14     * GNU General Public License for more details.
15     *
16     * You should have received a copy of the GNU General Public License
17     * along with this program; if not, write to the Free Software
18     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19     */
20    
21     #ifndef SID_H
22     #define SID_H
23    
24     #include "types.h"
25    
26    
27     /*
28     * Functions
29     */
30    
31     // Init SID emulation
32     extern void SIDInit(void);
33    
34     // Exit SID emulation
35     extern void SIDExit(void);
36    
37     // Reset SID emulation
38     extern void SIDReset(cycle_t now);
39    
40     // Fill audio buffer with SID sound
41     extern void SIDCalcBuffer(uint8 *buf, int count);
42 cebix 1.3
43     // Execute 6510 replay routine once
44     extern void SIDExecute(void);
45 cebix 1.1
46     // Set replay frequency and speed adjustment
47     extern void SIDSetReplayFreq(int freq);
48     extern void SIDAdjustSpeed(int percent);
49    
50     // Write to CIA timer A (changes replay frequency)
51     extern void cia_tl_write(uint8 byte);
52     extern void cia_th_write(uint8 byte);
53    
54     // Read from SID register
55     extern uint32 sid_read(uint32 adr, cycle_t now);
56    
57     // Write to SID register
58     extern void sid_write(uint32 adr, uint32 byte, cycle_t now, bool rmw);
59    
60     #endif