add two more compatibility flags

for songs that relied upon pre-0.5.5 broken behavior

src/engine/platform/arcade.cpp

@@ -276,7 +276,7 @@ void DivPlatformArcade::tick() {
       } else {
         rWrite(chanOffs[i]+ADDR_LR_FB_ALG,(chan[i].state.alg&7)|(chan[i].state.fb<<3)|((chan[i].chVolL&1)<<6)|((chan[i].chVolR&1)<<7));
       }
-      for (int j=0; j<4; j++) {
+      if (!parent->song.algMacroBehavior) for (int j=0; j<4; j++) {
         unsigned short baseAddr=chanOffs[i]|opOffs[j];
         DivInstrumentFM::Operator& op=chan[i].state.op[j];
         if (isMuted[i]) {