void NES_APU_np_FrameSequence(void* chip, int s);
void* NES_APU_np_Create(int clock, int rate);
void NES_APU_np_Destroy(void* chip);
void NES_APU_np_Reset(void* chip);
bool NES_APU_np_Read(void* chip, UINT32 adr, UINT32* val);
bool NES_APU_np_Write(void* chip, UINT32 adr, UINT32 val);
UINT32 NES_APU_np_Render(void* chip, INT32 b[2]);
void NES_APU_np_SetRate(void* chip, double rate);
void NES_APU_np_SetClock(void* chip, double clock);
void NES_APU_np_SetOption(void* chip, int id, int b);
void NES_APU_np_SetMask(void* chip, int m);
void NES_APU_np_SetStereoMix(void* chip, int trk, INT16 mixl, INT16 mixr);