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#ifndef __SOUND_H__
#define __SOUND_H__
#include "defs.h"
struct sndchan
{
int on;
unsigned pos;
int cnt, encnt, swcnt;
int len, enlen, swlen;
int swfreq;
int freq;
int envol, endir;
};
struct snd
{
int rate;
struct sndchan ch[4];
byte wave[16];
};
extern struct snd snd;
byte sound_read(byte r);
void sound_write(byte r, byte b);
void sound_dirty(void);
void sound_off(void);
void sound_reset(void);
void sound_mix(void);
void s1_init(void);
void s2_init(void);
void s3_init(void);
void s4_init(void);
#endif
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