mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-12-26 03:01:50 +01:00
39 lines
775 B
C
39 lines
775 B
C
#ifndef SN76496_H
|
|
#define SN76496_H
|
|
|
|
#define MAX_76496 1
|
|
|
|
struct SN76496interface
|
|
{
|
|
int num;
|
|
int baseclock[MAX_76496];
|
|
int volume[MAX_76496];
|
|
};
|
|
|
|
struct SN76496
|
|
{
|
|
int SampleRate;
|
|
unsigned int UpdateStep;
|
|
int VolTable[16];
|
|
int Register[8];
|
|
int LastRegister;
|
|
int Volume[4];
|
|
unsigned int RNG;
|
|
int NoiseFB;
|
|
int Period[4];
|
|
int Count[4];
|
|
int Output[4];
|
|
};
|
|
|
|
extern struct SN76496 sn[MAX_76496];
|
|
|
|
/* Function prototypes */
|
|
void SN76496Write (int chip, int data);
|
|
void SN76496Update (int chip, signed short int *buffer, int length);
|
|
void SN76496_set_clock (int chip, int clock);
|
|
void SN76496_set_gain (int chip, int gain);
|
|
int SN76496_init (int chip, int clock, int volume, int sample_rate);
|
|
int SN76496_sh_start (int clock, int volume, int rate);
|
|
|
|
#endif
|