#ifdef __cplusplus
extern "C" {
#endif

APIRET UltraSetNVoices(int);
APIRET UltraEnableOutput(void);
APIRET UltraDisableOutput(void);
APIRET UltraBlockTimerHandler1();
APIRET UltraBlockTimerHandler2(); 
APIRET UltraUnblockAll(void);
APIRET UltraStartTimer(int, int);
APIRET UltraStopTimer(int);
APIRET UltraSetBalance(int, int);
APIRET UltraSetFrequency(int, int);
APIRET UltraSetAll(int, char, int, int, unsigned char, unsigned char);
APIRET UltraPokeData(long, int);
APIRET UltraPeekData(int *);
APIRET UltraMemAlloc(unsigned long, unsigned long *, unsigned char);
APIRET UltraMemFree(void);
APIRET UltraMemInit(void);
APIRET UltraSizeDram(int *);
APIRET UltraStartVoice(int, unsigned int, unsigned int, unsigned int, unsigned char);
APIRET UltraStopVoice(int);
APIRET UltraVectorLinearVolume(int, unsigned int, unsigned char, unsigned char);
APIRET UltraDownload(void *, unsigned char, unsigned long, unsigned int, int);
APIRET UltraGetAccess(void);
APIRET UltraReleaseAccess(void);
APIRET UltraGetDriverVersion(int *);
APIRET UltraSetLoopMode(int, int);
APIRET UltraVoiceStopped(int *);
APIRET UltraSetLoopStart(int, int);
APIRET UltraGetUltraType(int *);

APIRET UltraAddEffectToVoice(int, int);
APIRET UltraRemoveEffectFromVoice(int, int);
APIRET UltraStartEffectVoice(int, int, int, int, int, int, int, int);
 
// Type of samples needed for UltraDownload (control byte)
#define DMA_16          0x40	//16 bits sample
#define DMA_8           0x00	//8 bits sample

#define DMA_CVT_2       0x80    //unsigned data
#define DMA_NO_CVT      0x00    //signed data

//voice register bits needed for UltraStartVoice (mode byte)
#define VC_DATA_TYPE            0x04            /* 0=8 bit,1=16 bit */
#define VC_LOOP_ENABLE          0x08            /* 1=enable */
#define VC_BI_LOOP		0x10		/* 1=bi directional looping */


/* ($0,$80) Voice control register */
#define VOICE_STOPPED		0x01		/* voice has stopped */
#define STOP_VOICE			0x02		/* stop voice */
#define VC_DATA_TYPE		0x04		/* 0=8 bit,1=16 bit */
#define VC_LOOP_ENABLE		0x08		/* 1=enable */
#define VC_BI_LOOP			0x10		/* 1=bi directional looping */
#define VC_WAVE_IRQ			0x20		/* 1=enable voice's wave irq */
#define VC_DIRECT			0x40		/* 0=increasing,1=decreasing */
#define VC_IRQ_PENDING		0x80		/* 1=wavetable irq pending */

#ifdef __cplusplus
};
#endif