typedef long (CALLBACK* SPUshutdown)(void); \r
typedef long (CALLBACK* SPUclose)(void); \r
typedef void (CALLBACK* SPUwriteRegister)(unsigned long, unsigned short, unsigned int);\r
-typedef unsigned short (CALLBACK* SPUreadRegister)(unsigned long);\r
+typedef unsigned short (CALLBACK* SPUreadRegister)(unsigned long, unsigned int);\r
typedef void (CALLBACK* SPUwriteDMAMem)(unsigned short *, int, unsigned int);\r
typedef void (CALLBACK* SPUreadDMAMem)(unsigned short *, int, unsigned int);\r
typedef void (CALLBACK* SPUplayADPCMchannel)(xa_decode_t *, unsigned int, int);\r