--- np2/sound/tms3631.h	2003/10/16 17:58:03	1.1.1.1
+++ np2/sound/tms3631.h	2003/12/08 00:55:33	1.2
@@ -25,8 +25,8 @@ void tms3631_initialize(UINT rate);
 void tms3631_setvol(const BYTE *vol);
 
 void tms3631_reset(TMS3631 tms);
-void tms3631_setkey(TMS3631 tms, BYTE ch, BYTE key);
-void tms3631_setenable(TMS3631 tms, BYTE enable);
+void tms3631_setkey(TMS3631 tms, REG8 ch, REG8 key);
+void tms3631_setenable(TMS3631 tms, REG8 enable);
 
 void SOUNDCALL tms3631_getpcm(TMS3631 tms, SINT32 *pcm, UINT count);