new dispatch, part 1

src/engine/platform/namcowsg.cpp

@@ -171,11 +171,11 @@ void DivPlatformNamcoWSG::acquire(short** buf, size_t len) {
     regPool[w.addr&0x3f]=w.val;
     writes.pop();
   }
-  for (size_t h=start; h<start+len; h++) {
-    short* buf[2]={
-      bufL+h, bufR+h
+  for (size_t h=0; h<len; h++) {
+    short* bufC[2]={
+      buf[0]+h, buf[1]+h
     };
-    namco->sound_stream_update(buf,1);
+    namco->sound_stream_update(bufC,1);
     for (int i=0; i<chans; i++) {
       oscBuf[i]->data[oscBuf[i]->needle++]=namco->m_channel_list[i].last_out*chans;
     }