X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2Fsound%2Fsound.c;h=cc36a449a753bdef6ccc875ecc868a0766cfc040;hb=3d48f1437fc5e2c556ed900ae25fd4a255d52922;hp=a9f2f68b761eced584aa0f675ff60ba71568c9a8;hpb=abe0ea43b561e2def84cf921b1d6d8c82819ea69;p=picodrive.git

diff --git a/Pico/sound/sound.c b/Pico/sound/sound.c
index a9f2f68..cc36a44 100644
--- a/Pico/sound/sound.c
+++ b/Pico/sound/sound.c
@@ -227,6 +227,7 @@ void sound_clear(void)
 
 int sound_render(int offset, int length)
 {
+  int  buf32_updated = 0;
   int *buf32 = PsndBuffer+offset;
   int stereo = (PicoOpt & 8) >> 3;
   // emulating CD && PCM option enabled && PCM chip on && have enabled channels
@@ -247,12 +248,18 @@ int sound_render(int offset, int length)
     SN76496Update(PsndOut+offset, length, stereo);
 
   // Add in the stereo FM buffer
-  if (PicoOpt & 1)
-    YM2612UpdateOne(buf32, length, stereo, 1);
+  if (PicoOpt & 1) {
+    buf32_updated = YM2612UpdateOne(buf32, length, stereo, 1);
+  } else
+    memset32(buf32, 0, length<<stereo);
+
+//printf("active_chs: %02x\n", buf32_updated);
 
   // CD: PCM sound
-  if (do_pcm)
+  if (do_pcm) {
     pcm_update(buf32, length, stereo);
+    //buf32_updated = 1;
+  }
 
   // CD: CDDA audio
   if ((PicoMCD & 1) && (PicoOpt & 0x800))