void YM2612Init_940(int baseclock, int rate);\r
void YM2612ResetChip_940(void);\r
-void YM2612UpdateOne_940(short *buffer, int length, int stereo);\r
+int YM2612UpdateOne_940(int *buffer, int length, int stereo, int is_buf_empty);\r
\r
int YM2612Write_940(unsigned int a, unsigned int v);\r
unsigned char YM2612Read_940(void);\r