implement operator mask effect

src/engine/dispatch.h

@@ -266,6 +266,8 @@ enum DivDispatchCmds {
 
   DIV_CMD_FDS_MOD_AUTO,
 
+  DIV_CMD_FM_OPMASK, // (mask)
+
   DIV_CMD_MAX
 };
 

src/engine/platform/arcade.cpp

@@ -761,6 +761,12 @@ int DivPlatformArcade::dispatch(DivCommand c) {
       immWrite(0x19,0x80|pmDepth);
       break;
     }
+    case DIV_CMD_FM_OPMASK:
+      chan[c.chan].opMask=c.value&15;
+      if (chan[c.chan].active) {
+        chan[c.chan].opMaskChanged=true;
+      }
+      break;
     case DIV_CMD_FM_HARD_RESET:
       chan[c.chan].hardReset=c.value;
       break;

src/engine/platform/genesis.cpp

@@ -1463,6 +1463,13 @@ int DivPlatformGenesis::dispatch(DivCommand c) {
       }
       break;
     }
+    case DIV_CMD_FM_OPMASK:
+      if (c.chan>=psgChanOffs) break;
+      chan[c.chan].opMask=c.value&15;
+      if (chan[c.chan].active) {
+        chan[c.chan].opMaskChanged=true;
+      }
+      break;
     case DIV_CMD_FM_HARD_RESET:
       if (c.chan>=6) break;
       chan[c.chan].hardReset=c.value;

src/engine/platform/tx81z.cpp

@@ -858,6 +858,9 @@ int DivPlatformTX81Z::dispatch(DivCommand c) {
       immWrite(0x17,0x80|pmDepth);
       break;
     }
+    case DIV_CMD_FM_OPMASK:
+      // TODO: if OPZ supports op mask
+      break;
     case DIV_CMD_FM_HARD_RESET:
       chan[c.chan].hardReset=c.value;
       break;

src/engine/platform/ym2203.cpp

@@ -1004,6 +1004,13 @@ int DivPlatformYM2203::dispatch(DivCommand c) {
       }
       break;
     }
+    case DIV_CMD_FM_OPMASK:
+      if (c.chan>=psgChanOffs) break;
+      chan[c.chan].opMask=c.value&15;
+      if (chan[c.chan].active) {
+        chan[c.chan].opMaskChanged=true;
+      }
+      break;
     case DIV_CMD_FM_HARD_RESET:
       chan[c.chan].hardReset=c.value;
       break;

src/engine/platform/ym2608.cpp

@@ -1537,6 +1537,13 @@ int DivPlatformYM2608::dispatch(DivCommand c) {
       }
       break;
     }
+    case DIV_CMD_FM_OPMASK:
+      if (c.chan>=psgChanOffs) break;
+      chan[c.chan].opMask=c.value&15;
+      if (chan[c.chan].active) {
+        chan[c.chan].opMaskChanged=true;
+      }
+      break;
     case DIV_CMD_FM_HARD_RESET:
       chan[c.chan].hardReset=c.value;
       break;

src/engine/platform/ym2610.cpp

@@ -1507,6 +1507,13 @@ int DivPlatformYM2610::dispatch(DivCommand c) {
       }
       break;
     }
+    case DIV_CMD_FM_OPMASK:
+      if (c.chan>=psgChanOffs) break;
+      chan[c.chan].opMask=c.value&15;
+      if (chan[c.chan].active) {
+        chan[c.chan].opMaskChanged=true;
+      }
+      break;
     case DIV_CMD_FM_HARD_RESET:
       chan[c.chan].hardReset=c.value;
       break;

src/engine/platform/ym2610b.cpp

@@ -1576,6 +1576,13 @@ int DivPlatformYM2610B::dispatch(DivCommand c) {
       }
       break;
     }
+    case DIV_CMD_FM_OPMASK:
+      if (c.chan>=psgChanOffs) break;
+      chan[c.chan].opMask=c.value&15;
+      if (chan[c.chan].active) {
+        chan[c.chan].opMaskChanged=true;
+      }
+      break;
     case DIV_CMD_FM_HARD_RESET:
       chan[c.chan].hardReset=c.value;
       break;

src/engine/playback.cpp

@@ -264,7 +264,9 @@ const char* cmdName[]={
   "BIFURCATOR_STATE_LOAD",
   "BIFURCATOR_PARAMETER",
 
-  "FDS_MOD_AUTO"
+  "FDS_MOD_AUTO",
+
+  "FM_OPMASK"
 };
 
 static_assert((sizeof(cmdName)/sizeof(void*))==DIV_CMD_MAX,"update cmdName!");

src/engine/sysDef.cpp

@@ -504,6 +504,7 @@ void DivEngine::registerSystems() {
     {0x5d, {DIV_CMD_FM_D2R, _("5Dxx: Set decay 2 of operator 2 (0 to 1F)"), constVal<1>, effectValAnd<31>}},
     {0x5e, {DIV_CMD_FM_D2R, _("5Exx: Set decay 2 of operator 3 (0 to 1F)"), constVal<2>, effectValAnd<31>}},
     {0x5f, {DIV_CMD_FM_D2R, _("5Fxx: Set decay 2 of operator 4 (0 to 1F)"), constVal<3>, effectValAnd<31>}},
+    {0x60, {DIV_CMD_FM_OPMASK, _("60xx: Set operator mask (bits 0-3)")}},
   };
 
   EffectHandlerMap fmOPMPostEffectHandlerMap(fmOPNPostEffectHandlerMap);
@@ -514,6 +515,7 @@ void DivEngine::registerSystems() {
     {0x1e, {DIV_CMD_FM_AM_DEPTH, _("1Exx: Set AM depth (0 to 7F)"), effectValAnd<127>}},
     {0x1f, {DIV_CMD_FM_PM_DEPTH, _("1Fxx: Set PM depth (0 to 7F)"), effectValAnd<127>}},
     {0x55, {DIV_CMD_FM_SSG, _("55xy: Set detune 2 (x: operator from 1 to 4 (0 for all ops); y: detune from 0 to 3)"), effectOpVal<4>, effectValAnd<3>}},
+    {0x60, {DIV_CMD_FM_OPMASK, _("60xx: Set operator mask (bits 0-3)")}},
   });
 
   EffectHandlerMap fmOPZPostEffectHandlerMap(fmOPMPostEffectHandlerMap);