--- np2/generic/cmjasts.c	2003/12/26 23:30:26	1.2
+++ np2/generic/cmjasts.c	2005/02/07 14:46:10	1.4
@@ -22,14 +22,14 @@ typedef struct {
 } _CMJAST, *CMJAST;
 
 
-static UINT jsread(COMMNG self, BYTE *data) {
+static UINT jsread(COMMNG self, UINT8 *data) {
 
 	(void)self;
 	(void)data;
 	return(0);
 }
 
-static UINT jswrite(COMMNG self, BYTE data) {
+static UINT jswrite(COMMNG self, UINT8 data) {
 
 	CMJAST	js;
 	SINT32	pcm;
@@ -55,7 +55,7 @@ static UINT jswrite(COMMNG self, BYTE da
 	return(1);
 }
 
-static BYTE jsgetstat(COMMNG self) {
+static UINT8 jsgetstat(COMMNG self) {
 
 	(void)self;
 	return(0);
@@ -111,11 +111,13 @@ static void SOUNDCALL js_getpcm(CMJAST h
 #else
 	pcmdata = hdl->pcm;
 #endif
-	while(count) {
-		count--;
-		pcm[0] += pcmdata;
-		pcm[1] += pcmdata;
-		pcm += 2;
+	if (pcmdata) {
+		while(count) {
+			count--;
+			pcm[0] += pcmdata;
+			pcm[1] += pcmdata;
+			pcm += 2;
+		}
 	}
 }