typedef void (CALLBACK* SPUreadDMAMem)(unsigned short *, int);\r
typedef void (CALLBACK* SPUplayADPCMchannel)(xa_decode_t *);\r
typedef void (CALLBACK* SPUregisterCallback)(void (CALLBACK *callback)(void));\r
+typedef void (CALLBACK* SPUregisterScheduleCb)(void (CALLBACK *callback)(unsigned int cycles_after));\r
typedef long (CALLBACK* SPUconfigure)(void);\r
typedef long (CALLBACK* SPUtest)(void);\r
typedef void (CALLBACK* SPUabout)(void);\r
extern SPUplayADPCMchannel SPU_playADPCMchannel;\r
extern SPUfreeze SPU_freeze;\r
extern SPUregisterCallback SPU_registerCallback;\r
+extern SPUregisterScheduleCb SPU_registerScheduleCb;\r
extern SPUasync SPU_async;\r
extern SPUplayCDDAchannel SPU_playCDDAchannel;\r
\r