--- xmil/io/sndboard.h	2004/08/05 11:30:12	1.3
+++ xmil/io/sndboard.h	2005/02/04 06:42:11	1.5
@@ -1,11 +1,17 @@
 
 typedef struct {
 	UINT8	psgreg;
+#if defined(SUPPORT_TURBOZ) || defined(SUPPORT_OPM)
 	UINT8	opmreg;
+#else
+	UINT8	_protected_opmreg;
+#endif
 	UINT8	rapids;
 	UINT8	padding;
 	UINT8	psgdat[0x10];
+#if defined(SUPPORT_TURBOZ) || defined(SUPPORT_OPM)
 	UINT8	opmdat[0x100];
+#endif
 } SNDBOARD;
 
 
@@ -13,8 +19,16 @@ typedef struct {
 extern "C" {
 #endif
 
+#if !defined(DISABLE_SOUND)
+void sndboard_update(void);
+#else
+#define	sndboard_update()
+#endif
+
+#if defined(SUPPORT_TURBOZ) || defined(SUPPORT_OPM)
 void IOOUTCALL opm_o(UINT port, REG8 dat);
 REG8 IOINPCALL opm_i(UINT port);
+#endif
 
 void IOOUTCALL sndboard_psgreg(UINT port, REG8 dat);
 void IOOUTCALL sndboard_psgdat(UINT port, REG8 dat);