1 /*
2 **
3 ** software implementation of Yamaha FM sound generator (YM2612/YM3438)
4 **
5 ** Original code (MAME fm.c)
6 **
7 ** Copyright (C) 2001, 2002, 2003 Jarek Burczynski (bujar at mame dot net)
8 ** Copyright (C) 1998 Tatsuyuki Satoh , MultiArcadeMachineEmulator development
9 **
10 ** Version 1.4 (final beta)
11 **
12 ** Additional code & fixes by Eke-Eke for Genesis Plus GX
13 **
14 */
15 
16 #ifndef _H_YM2612_
17 #define _H_YM2612_
18 
19 enum {
20   YM2612_DISCRETE = 0,
21   YM2612_INTEGRATED,
22   YM2612_ENHANCED
23 };
24 
25 extern void YM2612Init(void);
26 extern void YM2612Config(int type);
27 extern void YM2612ResetChip(void);
28 extern void YM2612Update(int *buffer, int length);
29 extern void YM2612Write(unsigned int a, unsigned int v);
30 extern unsigned int YM2612Read(void);
31 extern int YM2612LoadContext(unsigned char *state);
32 extern int YM2612SaveContext(unsigned char *state);
33 
34 #endif /* _YM2612_ */
35