diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ac6c5e0e..afc43c49 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -76,6 +76,8 @@ additional guidelines:
     - I will run a test suite to make sure this is the case.
     - if something breaks, you might want to add a compatibility flag (this requires changing the format though).
 - do not use `#pragma once`.
+- on a switch block, **always** put `default` last and not in any other position.
+  - I have fear of some C/C++ compilers ignoring the rest of cases upon hitting default.
 
 ## Demo Songs
 
diff --git a/src/engine/config.cpp b/src/engine/config.cpp
index 84fdd1ff..1c15f4af 100644
--- a/src/engine/config.cpp
+++ b/src/engine/config.cpp
@@ -48,6 +48,41 @@ String DivConfig::toString() {
   return ret;
 }
 
+const char* base64Table="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+String DivConfig::toBase64() {
+  String data=toString();
+  String ret;
+
+  ret.reserve((2+data.size()*4)/3);
+
+  unsigned int groupOfThree=0;
+  unsigned char pos=0;
+  for (char& i: data) {
+    groupOfThree|=((unsigned char)i)<<((2-pos)<<3);
+    if (++pos>=3) {
+      pos=0;
+      ret+=base64Table[(groupOfThree>>18)&63];
+      ret+=base64Table[(groupOfThree>>12)&63];
+      ret+=base64Table[(groupOfThree>>6)&63];
+      ret+=base64Table[groupOfThree&63];
+      groupOfThree=0;
+    }
+  }
+  if (pos==2) {
+    ret+=base64Table[(groupOfThree>>18)&63];
+    ret+=base64Table[(groupOfThree>>12)&63];
+    ret+=base64Table[(groupOfThree>>6)&63];
+    ret+='=';
+  } else if (pos==1) {
+    ret+=base64Table[(groupOfThree>>18)&63];
+    ret+=base64Table[(groupOfThree>>12)&63];
+    ret+="==";
+  }
+
+  return ret;
+}
+
 void DivConfig::parseLine(const char* line) {
   String key="";
   String value="";
@@ -105,7 +140,41 @@ bool DivConfig::loadFromMemory(const char* buf) {
   return true;
 }
 
-bool DivConfig::getBool(String key, bool fallback) {
+bool DivConfig::loadFromBase64(const char* buf) {
+  String data;
+
+  unsigned int groupOfThree=0;
+  signed char pos=18;
+  for (const char* i=buf; *i; i++) {
+    unsigned char nextVal=0;
+    if ((*i)=='/') {
+      nextVal=63;
+    } else if ((*i)=='+') {
+      nextVal=62;
+    } else if ((*i)>='0' && (*i)<='9') {
+      nextVal=52+((*i)-'0');
+    } else if ((*i)>='a' && (*i)<='z') {
+      nextVal=26+((*i)-'a');
+    } else if ((*i)>='A' && (*i)<='Z') {
+      nextVal=((*i)-'A');
+    } else {
+      nextVal=0;
+    }
+    groupOfThree|=nextVal<<pos;
+    pos-=6;
+    if (pos<0) {
+      pos=18;
+      if ((groupOfThree>>16)&0xff) data+=(groupOfThree>>16)&0xff;
+      if ((groupOfThree>>8)&0xff) data+=(groupOfThree>>8)&0xff;
+      if (groupOfThree&0xff) data+=groupOfThree&0xff;
+      groupOfThree=0;
+    }
+  }
+
+  return loadFromMemory(data.c_str());
+}
+
+bool DivConfig::getBool(String key, bool fallback) const {
   try {
     String val=conf.at(key);
     if (val=="true") {
@@ -118,7 +187,7 @@ bool DivConfig::getBool(String key, bool fallback) {
   return fallback;
 }
 
-int DivConfig::getInt(String key, int fallback) {
+int DivConfig::getInt(String key, int fallback) const {
   try {
     String val=conf.at(key);
     int ret=std::stoi(val);
@@ -129,7 +198,7 @@ int DivConfig::getInt(String key, int fallback) {
   return fallback;
 }
 
-float DivConfig::getFloat(String key, float fallback) {
+float DivConfig::getFloat(String key, float fallback) const {
   try {
     String val=conf.at(key);
     float ret=std::stof(val);
@@ -140,7 +209,7 @@ float DivConfig::getFloat(String key, float fallback) {
   return fallback;
 }
 
-double DivConfig::getDouble(String key, double fallback) {
+double DivConfig::getDouble(String key, double fallback) const {
   try {
     String val=conf.at(key);
     double ret=std::stod(val);
@@ -151,7 +220,7 @@ double DivConfig::getDouble(String key, double fallback) {
   return fallback;
 }
 
-String DivConfig::getString(String key, String fallback) {
+String DivConfig::getString(String key, String fallback) const {
   try {
     String val=conf.at(key);
     return val;
diff --git a/src/engine/config.h b/src/engine/config.h
index 15ded011..d573a451 100644
--- a/src/engine/config.h
+++ b/src/engine/config.h
@@ -29,16 +29,18 @@ class DivConfig {
   public:
     // config loading/saving
     bool loadFromMemory(const char* buf);
+    bool loadFromBase64(const char* buf);
     bool loadFromFile(const char* path, bool createOnFail=true);
     String toString();
+    String toBase64();
     bool save(const char* path);
 
     // get a config value
-    bool getBool(String key, bool fallback);
-    int getInt(String key, int fallback);
-    float getFloat(String key, float fallback);
-    double getDouble(String key, double fallback);
-    String getString(String key, String fallback);
+    bool getBool(String key, bool fallback) const;
+    int getInt(String key, int fallback) const;
+    float getFloat(String key, float fallback) const;
+    double getDouble(String key, double fallback) const;
+    String getString(String key, String fallback) const;
 
     // set a config value
     void set(String key, bool value);
diff --git a/src/engine/dispatch.h b/src/engine/dispatch.h
index c7b75791..9484054b 100644
--- a/src/engine/dispatch.h
+++ b/src/engine/dispatch.h
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <vector>
+#include "config.h"
 
 #define ONE_SEMITONE 2200
 
@@ -434,9 +435,9 @@ class DivDispatch {
 
     /**
      * set the chip flags.
-     * @param flags the flags. see song.h for possible values.
+     * @param flags a DivConfig containing chip flags.
      */
-    virtual void setFlags(unsigned int flags);
+    virtual void setFlags(const DivConfig& flags);
 
     /**
      * set skip reg writes.
@@ -522,10 +523,10 @@ class DivDispatch {
      * @param parent the parent DivEngine.
      * @param channels the number of channels to acquire.
      * @param sugRate the suggested rate. this may change, so don't rely on it.
-     * @param flags the chip flags. see song.h for possible values.
+     * @param flags a DivConfig containing chip flags.
      * @return the number of channels allocated.
      */
-    virtual int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    virtual int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
 
     /**
      * quit the DivDispatch.
diff --git a/src/engine/dispatchContainer.cpp b/src/engine/dispatchContainer.cpp
index 1262d0a5..7a246da8 100644
--- a/src/engine/dispatchContainer.cpp
+++ b/src/engine/dispatchContainer.cpp
@@ -157,7 +157,7 @@ void DivDispatchContainer::clear() {
   prevSample[1]=temp[1];*/
 }
 
-void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, double gotRate, unsigned int flags) {
+void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, double gotRate, const DivConfig& flags) {
   if (dispatch!=NULL) return;
 
   bb[0]=blip_new(32768);
diff --git a/src/engine/engine.cpp b/src/engine/engine.cpp
index ce7f2a2a..5073fcf6 100644
--- a/src/engine/engine.cpp
+++ b/src/engine/engine.cpp
@@ -3467,12 +3467,77 @@ void DivEngine::setOrder(unsigned char order) {
   BUSY_END;
 }
 
-void DivEngine::setSysFlags(int system, unsigned int flags, bool restart) {
+void DivEngine::setSysFlags(int system, String key, bool value, bool restart) {
   BUSY_BEGIN_SOFT;
   saveLock.lock();
-  song.systemFlagsOld[system]=flags;
+  song.systemFlags[system].set(key,value);
   saveLock.unlock();
-  disCont[system].dispatch->setFlags(song.systemFlagsOld[system]);
+  disCont[system].dispatch->setFlags(song.systemFlags[system]);
+  disCont[system].setRates(got.rate);
+  if (restart && isPlaying()) {
+    playSub(false);
+  }
+  BUSY_END;
+}
+
+void DivEngine::setSysFlags(int system, String key, int value, bool restart) {
+  BUSY_BEGIN_SOFT;
+  saveLock.lock();
+  song.systemFlags[system].set(key,value);
+  saveLock.unlock();
+  disCont[system].dispatch->setFlags(song.systemFlags[system]);
+  disCont[system].setRates(got.rate);
+  if (restart && isPlaying()) {
+    playSub(false);
+  }
+  BUSY_END;
+}
+
+void DivEngine::setSysFlags(int system, String key, float value, bool restart) {
+  BUSY_BEGIN_SOFT;
+  saveLock.lock();
+  song.systemFlags[system].set(key,value);
+  saveLock.unlock();
+  disCont[system].dispatch->setFlags(song.systemFlags[system]);
+  disCont[system].setRates(got.rate);
+  if (restart && isPlaying()) {
+    playSub(false);
+  }
+  BUSY_END;
+}
+
+void DivEngine::setSysFlags(int system, String key, double value, bool restart) {
+  BUSY_BEGIN_SOFT;
+  saveLock.lock();
+  song.systemFlags[system].set(key,value);
+  saveLock.unlock();
+  disCont[system].dispatch->setFlags(song.systemFlags[system]);
+  disCont[system].setRates(got.rate);
+  if (restart && isPlaying()) {
+    playSub(false);
+  }
+  BUSY_END;
+}
+
+void DivEngine::setSysFlags(int system, String key, const char* value, bool restart) {
+  BUSY_BEGIN_SOFT;
+  saveLock.lock();
+  song.systemFlags[system].set(key,value);
+  saveLock.unlock();
+  disCont[system].dispatch->setFlags(song.systemFlags[system]);
+  disCont[system].setRates(got.rate);
+  if (restart && isPlaying()) {
+    playSub(false);
+  }
+  BUSY_END;
+}
+
+void DivEngine::setSysFlags(int system, String key, String value, bool restart) {
+  BUSY_BEGIN_SOFT;
+  saveLock.lock();
+  song.systemFlags[system].set(key,value);
+  saveLock.unlock();
+  disCont[system].dispatch->setFlags(song.systemFlags[system]);
   disCont[system].setRates(got.rate);
   if (restart && isPlaying()) {
     playSub(false);
@@ -3630,7 +3695,7 @@ void DivEngine::rescanAudioDevices() {
 void DivEngine::initDispatch() {
   BUSY_BEGIN;
   for (int i=0; i<song.systemLen; i++) {
-    disCont[i].init(song.system[i],this,getChannelCount(song.system[i]),got.rate,song.systemFlagsOld[i]);
+    disCont[i].init(song.system[i],this,getChannelCount(song.system[i]),got.rate,song.systemFlags[i]);
     disCont[i].setRates(got.rate);
     disCont[i].setQuality(lowQuality);
   }
diff --git a/src/engine/engine.h b/src/engine/engine.h
index 089add32..fd190294 100644
--- a/src/engine/engine.h
+++ b/src/engine/engine.h
@@ -183,7 +183,7 @@ struct DivDispatchContainer {
   void flush(size_t count);
   void fillBuf(size_t runtotal, size_t offset, size_t size);
   void clear();
-  void init(DivSystem sys, DivEngine* eng, int chanCount, double gotRate, unsigned int flags);
+  void init(DivSystem sys, DivEngine* eng, int chanCount, double gotRate, const DivConfig& flags);
   void quit();
   DivDispatchContainer():
     dispatch(NULL),
@@ -821,7 +821,12 @@ class DivEngine {
     void setOrder(unsigned char order);
 
     // set system flags
-    void setSysFlags(int system, unsigned int flags, bool restart);
+    void setSysFlags(int system, String key, bool value, bool restart);
+    void setSysFlags(int system, String key, int value, bool restart);
+    void setSysFlags(int system, String key, float value, bool restart);
+    void setSysFlags(int system, String key, double value, bool restart);
+    void setSysFlags(int system, String key, const char* value, bool restart);
+    void setSysFlags(int system, String key, String value, bool restart);
 
     // set Hz
     void setSongRate(float hz, bool pal);
diff --git a/src/engine/fileOps.cpp b/src/engine/fileOps.cpp
index d05ad1e1..3ffb586e 100644
--- a/src/engine/fileOps.cpp
+++ b/src/engine/fileOps.cpp
@@ -1538,6 +1538,7 @@ void DivEngine::convertOldFlags(unsigned int oldFlags, DivConfig& newFlags, DivS
       newFlags.set("echoVol",(int)((oldFlags>>24)&255));
       break;
     case DIV_SYSTEM_PCM_DAC:
+      if (!oldFlags) oldFlags=0x1f0000|44099;
       newFlags.set("rate",(int)((oldFlags&0xffff)+1));
       newFlags.set("outDepth",(int)((oldFlags>>16)&15));
       if (oldFlags&0x100000) newFlags.set("stereo",true);
@@ -2982,7 +2983,10 @@ bool DivEngine::loadMod(unsigned char* file, size_t len) {
     ds.systemLen=(chCount+3)/4;
     for(int i=0; i<ds.systemLen; i++) {
       ds.system[i]=DIV_SYSTEM_AMIGA;
-      ds.systemFlagsOld[i]=1|(80<<8)|(bypassLimits?4:0)|((ds.systemLen>1 || bypassLimits)?2:0); // PAL
+      ds.systemFlags[i].set("clockSel",1); // PAL
+      ds.systemFlags[i].set("stereoSep",80);
+      ds.systemFlags[i].set("bypassLimits",bypassLimits);
+      ds.systemFlags[i].set("chipType",(bool)(ds.systemLen>1 || bypassLimits));
     }
     for(int i=0; i<chCount; i++) {
       ds.subsong[0]->chanShow[i]=true;
@@ -3188,7 +3192,8 @@ bool DivEngine::loadFC(unsigned char* file, size_t len) {
     ds.system[0]=DIV_SYSTEM_AMIGA;
     ds.systemVol[0]=64;
     ds.systemPan[0]=0;
-    ds.systemFlagsOld[0]=1|(80<<8); // PAL
+    ds.systemFlags[0].set("clockSel",1); // PAL
+    ds.systemFlags[0].set("stereoSep",80);
     ds.systemName="Amiga";
 
     seqLen=reader.readI_BE();
@@ -3828,11 +3833,11 @@ bool DivEngine::loadFTM(unsigned char* file, size_t len) {
         }
         if (expansions&16) {
           ds.system[systemID]=DIV_SYSTEM_N163;
-          ds.systemFlagsOld[systemID++]=n163Chans;
+          ds.systemFlags[systemID++].set("channels",(int)n163Chans);
         }
         if (expansions&32) {
           ds.system[systemID]=DIV_SYSTEM_AY8910;
-          ds.systemFlagsOld[systemID++]=38; // Sunsoft 5B
+          ds.systemFlags[systemID++].set("chipType",2); // Sunsoft 5B
         }
         ds.systemLen=systemID;
 
diff --git a/src/engine/platform/abstract.cpp b/src/engine/platform/abstract.cpp
index 358e54aa..746e8e80 100644
--- a/src/engine/platform/abstract.cpp
+++ b/src/engine/platform/abstract.cpp
@@ -94,7 +94,7 @@ bool DivDispatch::getWantPreNote() {
   return false;
 }
 
-void DivDispatch::setFlags(unsigned int flags) {
+void DivDispatch::setFlags(const DivConfig& flags) {
 }
 
 void DivDispatch::setSkipRegisterWrites(bool value) {
@@ -157,7 +157,7 @@ void DivDispatch::renderSamples() {
   
 }
 
-int DivDispatch::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivDispatch::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   return 0;
 }
 
diff --git a/src/engine/platform/amiga.cpp b/src/engine/platform/amiga.cpp
index 7a49fccf..85e0e855 100644
--- a/src/engine/platform/amiga.cpp
+++ b/src/engine/platform/amiga.cpp
@@ -427,8 +427,8 @@ void DivPlatformAmiga::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformAmiga::setFlags(unsigned int flags) {
-  if (flags&1) {
+void DivPlatformAmiga::setFlags(const DivConfig& flags) {
+  if (flags.getInt("clockSel",0)) {
     chipClock=COLOR_PAL*4.0/5.0;
   } else {
     chipClock=COLOR_NTSC;
@@ -437,10 +437,11 @@ void DivPlatformAmiga::setFlags(unsigned int flags) {
   for (int i=0; i<4; i++) {
     oscBuf[i]->rate=rate;
   }
-  sep1=((flags>>8)&127)+127;
-  sep2=127-((flags>>8)&127);
-  amigaModel=flags&2;
-  bypassLimits=flags&4;
+  int sep=flags.getInt("stereoSep",0)&127;
+  sep1=sep+127;
+  sep2=127-sep;
+  amigaModel=flags.getInt("chipType",0);
+  bypassLimits=flags.getBool("bypassLimits",false);
   if (amigaModel) {
     filtConstOff=4000;
     filtConstOn=sin(M_PI*8000.0/(double)rate)*4096.0;
@@ -450,7 +451,7 @@ void DivPlatformAmiga::setFlags(unsigned int flags) {
   }
 }
 
-int DivPlatformAmiga::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformAmiga::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/amiga.h b/src/engine/platform/amiga.h
index a0a80d6c..1b509d1b 100644
--- a/src/engine/platform/amiga.h
+++ b/src/engine/platform/amiga.h
@@ -101,12 +101,12 @@ class DivPlatformAmiga: public DivDispatch {
     bool isStereo();
     bool keyOffAffectsArp(int ch);
     DivMacroInt* getChanMacroInt(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsChange(int ins);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
 };
 
diff --git a/src/engine/platform/arcade.cpp b/src/engine/platform/arcade.cpp
index aaf64e07..ee003b54 100644
--- a/src/engine/platform/arcade.cpp
+++ b/src/engine/platform/arcade.cpp
@@ -849,13 +849,8 @@ void DivPlatformArcade::reset() {
   //rWrite(0x1b,0x00);
 }
 
-void DivPlatformArcade::setFlags(unsigned int flags) {
-  switch (flags&0xff) {
-    default:
-    case 0:
-      chipClock=COLOR_NTSC;
-      baseFreqOff=0;
-      break;
+void DivPlatformArcade::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
     case 1:
       chipClock=COLOR_PAL*4.0/5.0;
       baseFreqOff=12;
@@ -864,6 +859,10 @@ void DivPlatformArcade::setFlags(unsigned int flags) {
       chipClock=4000000.0;
       baseFreqOff=-122;
       break;
+    default:
+      chipClock=COLOR_NTSC;
+      baseFreqOff=0;
+      break;
   }
   rate=chipClock/64;
   for (int i=0; i<8; i++) {
@@ -879,7 +878,7 @@ void DivPlatformArcade::setYMFM(bool use) {
   useYMFM=use;
 }
 
-int DivPlatformArcade::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformArcade::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/arcade.h b/src/engine/platform/arcade.h
index 70265be3..eee273df 100644
--- a/src/engine/platform/arcade.h
+++ b/src/engine/platform/arcade.h
@@ -111,13 +111,13 @@ class DivPlatformArcade: public DivPlatformOPM {
     void muteChannel(int ch, bool mute);
     DivMacroInt* getChanMacroInt(int ch);
     void notifyInsChange(int ins);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     bool isStereo();
     void setYMFM(bool use);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformArcade();
 };
diff --git a/src/engine/platform/ay.cpp b/src/engine/platform/ay.cpp
index 05fdfa57..b01d6a9f 100644
--- a/src/engine/platform/ay.cpp
+++ b/src/engine/platform/ay.cpp
@@ -772,17 +772,13 @@ void DivPlatformAY8910::setExtClockDiv(unsigned int eclk, unsigned char ediv) {
   }
 }
 
-void DivPlatformAY8910::setFlags(unsigned int flags) {
+void DivPlatformAY8910::setFlags(const DivConfig& flags) {
   if (extMode) {
     chipClock=extClock;
     rate=chipClock/extDiv;
   } else {
-    clockSel=(flags>>7)&1;
-    switch (flags&15) {
-      default:
-      case 0:
-        chipClock=COLOR_NTSC/2.0;
-        break;
+    clockSel=flags.getBool("halfClock",false);
+    switch (flags.getInt("clockSel",0)) {
       case 1:
         chipClock=COLOR_PAL*2.0/5.0;
         break;
@@ -825,6 +821,9 @@ void DivPlatformAY8910::setFlags(unsigned int flags) {
       case 14:
         chipClock=1536000;
         break;
+      default:
+        chipClock=COLOR_NTSC/2.0;
+        break;
     }
     rate=chipClock/8;
   }
@@ -833,7 +832,7 @@ void DivPlatformAY8910::setFlags(unsigned int flags) {
   }
 
   if (ay!=NULL) delete ay;
-  switch ((flags>>4)&3) {
+  switch (flags.getInt("chipType",0)) {
     case 1:
       ay=new ym2149_device(rate,clockSel);
       sunsoft=false;
@@ -858,11 +857,11 @@ void DivPlatformAY8910::setFlags(unsigned int flags) {
   ay->device_start();
   ay->device_reset();
 
-  stereo=(flags>>6)&1;
-  stereoSep=(flags>>8)&255;
+  stereo=flags.getBool("stereo",false);
+  stereoSep=flags.getInt("stereoSep",0)&255;
 }
 
-int DivPlatformAY8910::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformAY8910::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/ay.h b/src/engine/platform/ay.h
index 854eb5fb..d28eac1b 100644
--- a/src/engine/platform/ay.h
+++ b/src/engine/platform/ay.h
@@ -162,7 +162,7 @@ class DivPlatformAY8910: public DivDispatch {
     void forceIns();
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     bool isStereo();
     bool keyOffAffectsArp(int ch);
     DivMacroInt* getChanMacroInt(int ch);
@@ -171,7 +171,7 @@ class DivPlatformAY8910: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     DivPlatformAY8910(bool useExtMode=false, unsigned int eclk=COLOR_NTSC, unsigned char ediv=8):
       DivDispatch(),
diff --git a/src/engine/platform/ay8930.cpp b/src/engine/platform/ay8930.cpp
index 9a1067fe..821fa4fe 100644
--- a/src/engine/platform/ay8930.cpp
+++ b/src/engine/platform/ay8930.cpp
@@ -761,9 +761,9 @@ void DivPlatformAY8930::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
 }
 
-void DivPlatformAY8930::setFlags(unsigned int flags) {
-  clockSel=(flags>>7)&1;
-  switch (flags&15) {
+void DivPlatformAY8930::setFlags(const DivConfig& flags) {
+  clockSel=flags.getBool("halfClock",false);
+  switch (flags.getInt("clockSel",0)) {
     case 1:
       chipClock=COLOR_PAL*2.0/5.0;
       break;
@@ -809,11 +809,11 @@ void DivPlatformAY8930::setFlags(unsigned int flags) {
     oscBuf[i]->rate=rate;
   }
 
-  stereo=(flags>>6)&1;
-  stereoSep=(flags>>8)&255;
+  stereo=flags.getBool("stereo",false);
+  stereoSep=flags.getInt("stereoSep",0)&255;
 }
 
-int DivPlatformAY8930::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformAY8930::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/ay8930.h b/src/engine/platform/ay8930.h
index fa4b83d9..3663ee99 100644
--- a/src/engine/platform/ay8930.h
+++ b/src/engine/platform/ay8930.h
@@ -164,7 +164,7 @@ class DivPlatformAY8930: public DivDispatch {
     void forceIns();
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     bool isStereo();
     bool keyOffAffectsArp(int ch);
     DivMacroInt* getChanMacroInt(int ch);
@@ -172,7 +172,7 @@ class DivPlatformAY8930: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
 };
 #endif
diff --git a/src/engine/platform/bubsyswsg.cpp b/src/engine/platform/bubsyswsg.cpp
index 89d609ce..c00b4ce2 100644
--- a/src/engine/platform/bubsyswsg.cpp
+++ b/src/engine/platform/bubsyswsg.cpp
@@ -321,7 +321,7 @@ void DivPlatformBubSysWSG::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformBubSysWSG::setFlags(unsigned int flags) {
+void DivPlatformBubSysWSG::setFlags(const DivConfig& flags) {
   chipClock=COLOR_NTSC;
   rate=chipClock;
   for (int i=0; i<2; i++) {
@@ -337,7 +337,7 @@ void DivPlatformBubSysWSG::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformBubSysWSG::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformBubSysWSG::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/bubsyswsg.h b/src/engine/platform/bubsyswsg.h
index 34bdad3d..0d7e3fd5 100644
--- a/src/engine/platform/bubsyswsg.h
+++ b/src/engine/platform/bubsyswsg.h
@@ -80,13 +80,13 @@ class DivPlatformBubSysWSG: public DivDispatch {
     bool isStereo();
     bool keyOffAffectsArp(int ch);
     DivMacroInt* getChanMacroInt(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformBubSysWSG();
 };
diff --git a/src/engine/platform/c64.cpp b/src/engine/platform/c64.cpp
index ad111347..6e98fd8a 100644
--- a/src/engine/platform/c64.cpp
+++ b/src/engine/platform/c64.cpp
@@ -531,8 +531,8 @@ void DivPlatformC64::setFP(bool fp) {
   isFP=fp;
 }
 
-void DivPlatformC64::setFlags(unsigned int flags) {
-  switch (flags&0xf) {
+void DivPlatformC64::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
     case 0x0: // NTSC C64
       rate=COLOR_NTSC*2.0/7.0;
       break;
@@ -554,7 +554,7 @@ void DivPlatformC64::setFlags(unsigned int flags) {
   }
 }
 
-int DivPlatformC64::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformC64::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/c64.h b/src/engine/platform/c64.h
index 52685ce7..ba9a0512 100644
--- a/src/engine/platform/c64.h
+++ b/src/engine/platform/c64.h
@@ -101,7 +101,7 @@ class DivPlatformC64: public DivDispatch {
     void forceIns();
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsChange(int ins);
     bool getDCOffRequired();
     bool getWantPreNote();
@@ -111,7 +111,7 @@ class DivPlatformC64: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void setChipModel(bool is6581);
     void setFP(bool fp);
     void quit();
diff --git a/src/engine/platform/dummy.cpp b/src/engine/platform/dummy.cpp
index 48c33f05..56a2420d 100644
--- a/src/engine/platform/dummy.cpp
+++ b/src/engine/platform/dummy.cpp
@@ -138,7 +138,7 @@ void DivPlatformDummy::reset() {
   }
 }
 
-int DivPlatformDummy::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformDummy::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/dummy.h b/src/engine/platform/dummy.h
index 0b5181f0..d3a1b91e 100644
--- a/src/engine/platform/dummy.h
+++ b/src/engine/platform/dummy.h
@@ -44,7 +44,7 @@ class DivPlatformDummy: public DivDispatch {
     DivDispatchOscBuffer* getOscBuffer(int chan);
     void reset();
     void tick(bool sysTick=true);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformDummy();
 };
diff --git a/src/engine/platform/fds.cpp b/src/engine/platform/fds.cpp
index 7622a099..5859be56 100644
--- a/src/engine/platform/fds.cpp
+++ b/src/engine/platform/fds.cpp
@@ -451,10 +451,11 @@ void DivPlatformFDS::setNSFPlay(bool use) {
   useNP=use;
 }
 
-void DivPlatformFDS::setFlags(unsigned int flags) {
-  if (flags==2) { // Dendy
+void DivPlatformFDS::setFlags(const DivConfig& flags) {
+  int clockSel=flags.getInt("clockSel",0);
+  if (clockSel==2) { // Dendy
     rate=COLOR_PAL*2.0/5.0;
-  } else if (flags==1) { // PAL
+  } else if (clockSel==1) { // PAL
     rate=COLOR_PAL*3.0/8.0;
   } else { // NTSC
     rate=COLOR_NTSC/2.0;
@@ -485,9 +486,8 @@ void DivPlatformFDS::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformFDS::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformFDS::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
-  apuType=flags;
   dumpWrites=false;
   skipRegisterWrites=false;
   writeOscBuf=0;
diff --git a/src/engine/platform/fds.h b/src/engine/platform/fds.h
index 2721876e..7a54aa52 100644
--- a/src/engine/platform/fds.h
+++ b/src/engine/platform/fds.h
@@ -69,7 +69,6 @@ class DivPlatformFDS: public DivDispatch {
   DivDispatchOscBuffer* oscBuf;
   bool isMuted[1];
   DivWaveSynth ws;
-  unsigned char apuType;
   unsigned char writeOscBuf;
   bool useNP;
   struct _fds* fds;
@@ -99,13 +98,13 @@ class DivPlatformFDS: public DivDispatch {
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
     void setNSFPlay(bool use);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     float getPostAmp();
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformFDS();
 };
diff --git a/src/engine/platform/fmshared_OPN.h b/src/engine/platform/fmshared_OPN.h
index 406d7281..a6eb7185 100644
--- a/src/engine/platform/fmshared_OPN.h
+++ b/src/engine/platform/fmshared_OPN.h
@@ -106,6 +106,8 @@ class DivPlatformOPN: public DivPlatformFMBase {
     unsigned int ayDiv;
     bool extSys;
 
+    DivConfig ayFlags;
+
     DivPlatformOPN(double f=9440540.0, unsigned int d=72, unsigned int a=32, bool isExtSys=false):
       DivPlatformFMBase(),
       fmFreqBase(f),
diff --git a/src/engine/platform/gb.cpp b/src/engine/platform/gb.cpp
index 7c1c5d25..0c9ab7b3 100644
--- a/src/engine/platform/gb.cpp
+++ b/src/engine/platform/gb.cpp
@@ -629,9 +629,9 @@ void DivPlatformGB::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
 }
 
-void DivPlatformGB::setFlags(unsigned int flags) {
-  antiClickEnabled=!(flags&8);
-  switch (flags&3) {
+void DivPlatformGB::setFlags(const DivConfig& flags) {
+  antiClickEnabled=!flags.getBool("noAntiClick",false);
+  switch (flags.getInt("chipType",0)) {
     case 0:
       model=GB_MODEL_DMG_B;
       break;
@@ -647,7 +647,7 @@ void DivPlatformGB::setFlags(unsigned int flags) {
   }
 }
 
-int DivPlatformGB::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformGB::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   chipClock=4194304;
   rate=chipClock/16;
   for (int i=0; i<4; i++) {
diff --git a/src/engine/platform/gb.h b/src/engine/platform/gb.h
index 347f528b..d0a2c1f3 100644
--- a/src/engine/platform/gb.h
+++ b/src/engine/platform/gb.h
@@ -116,8 +116,8 @@ class DivPlatformGB: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    void setFlags(unsigned int flags);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    void setFlags(const DivConfig& flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformGB();
 };
diff --git a/src/engine/platform/genesis.cpp b/src/engine/platform/genesis.cpp
index 6b253f42..480ecb44 100644
--- a/src/engine/platform/genesis.cpp
+++ b/src/engine/platform/genesis.cpp
@@ -1186,16 +1186,25 @@ void DivPlatformGenesis::setSoftPCM(bool value) {
   softPCM=value;
 }
 
-void DivPlatformGenesis::setFlags(unsigned int flags) {
-  switch (flags&(~0x80000000)) {
+void DivPlatformGenesis::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
+    case 1:
+      chipClock=COLOR_PAL*12.0/7.0;
+      break;
+    case 2:
+      chipClock=8000000.0;
+      break;
+    case 3:
+      chipClock=COLOR_NTSC*12.0/7.0;
+      break;
+    case 4:
+      chipClock=COLOR_NTSC*9.0/4.0;
+      break;
     default:
-    case 0: chipClock=COLOR_NTSC*15.0/7.0; break;
-    case 1: chipClock=COLOR_PAL*12.0/7.0; break;
-    case 2: chipClock=8000000.0; break;
-    case 3: chipClock=COLOR_NTSC*12.0/7.0; break;
-    case 4: chipClock=COLOR_NTSC*9.0/4.0; break;
+      chipClock=COLOR_NTSC*15.0/7.0;
+      break;
   }
-  ladder=flags&0x80000000;
+  ladder=flags.getBool("ladderEffect",false);
   OPN2_SetChipType(ladder?ym3438_mode_ym2612:0);
   if (useYMFM) {
     if (fm_ymfm!=NULL) delete fm_ymfm;
@@ -1213,7 +1222,7 @@ void DivPlatformGenesis::setFlags(unsigned int flags) {
   }
 }
 
-int DivPlatformGenesis::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformGenesis::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   ladder=false;
diff --git a/src/engine/platform/genesis.h b/src/engine/platform/genesis.h
index 6c6837c0..f4b853a8 100644
--- a/src/engine/platform/genesis.h
+++ b/src/engine/platform/genesis.h
@@ -140,14 +140,14 @@ class DivPlatformGenesis: public DivPlatformOPN {
     bool keyOffAffectsArp(int ch);
     bool keyOffAffectsPorta(int ch);
     void toggleRegisterDump(bool enable);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsChange(int ins);
     void notifyInsDeletion(void* ins);
     void setSoftPCM(bool value);
     int getPortaFloor(int ch);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     DivPlatformGenesis():
       DivPlatformOPN(9440540.0, 72, 32) {}
diff --git a/src/engine/platform/genesisext.cpp b/src/engine/platform/genesisext.cpp
index 84b906be..2134568a 100644
--- a/src/engine/platform/genesisext.cpp
+++ b/src/engine/platform/genesisext.cpp
@@ -630,7 +630,7 @@ int DivPlatformGenesisExt::getPortaFloor(int ch) {
   return (ch>8)?12:0;
 }
 
-int DivPlatformGenesisExt::init(DivEngine* parent, int channels, int sugRate, unsigned int flags) {
+int DivPlatformGenesisExt::init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) {
   DivPlatformGenesis::init(parent,channels,sugRate,flags);
   for (int i=0; i<4; i++) {
     isOpMuted[i]=false;
diff --git a/src/engine/platform/genesisext.h b/src/engine/platform/genesisext.h
index ffc83d46..6f46402f 100644
--- a/src/engine/platform/genesisext.h
+++ b/src/engine/platform/genesisext.h
@@ -67,7 +67,7 @@ class DivPlatformGenesisExt: public DivPlatformGenesis {
     bool keyOffAffectsPorta(int ch);
     void notifyInsChange(int ins);
     int getPortaFloor(int ch);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformGenesisExt();
 };
diff --git a/src/engine/platform/lynx.cpp b/src/engine/platform/lynx.cpp
index 4db41bcf..66acdcd5 100644
--- a/src/engine/platform/lynx.cpp
+++ b/src/engine/platform/lynx.cpp
@@ -460,7 +460,7 @@ void DivPlatformLynx::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr, i.val);
 }
 
-int DivPlatformLynx::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformLynx::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/lynx.h b/src/engine/platform/lynx.h
index a6c1c91c..c03402e2 100644
--- a/src/engine/platform/lynx.h
+++ b/src/engine/platform/lynx.h
@@ -107,7 +107,7 @@ class DivPlatformLynx: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformLynx();
 };
diff --git a/src/engine/platform/mmc5.cpp b/src/engine/platform/mmc5.cpp
index 7d271046..9e3e5292 100644
--- a/src/engine/platform/mmc5.cpp
+++ b/src/engine/platform/mmc5.cpp
@@ -386,10 +386,11 @@ bool DivPlatformMMC5::keyOffAffectsArp(int ch) {
   return true;
 }
 
-void DivPlatformMMC5::setFlags(unsigned int flags) {
-  if (flags==2) { // Dendy
+void DivPlatformMMC5::setFlags(const DivConfig& flags) {
+  int clockSel=flags.getInt("clockSel",0);
+  if (clockSel==2) { // Dendy
     rate=COLOR_PAL*2.0/5.0;
-  } else if (flags==1) { // PAL
+  } else if (clockSel==1) { // PAL
     rate=COLOR_PAL*3.0/8.0;
   } else { // NTSC
     rate=COLOR_NTSC/2.0;
@@ -414,9 +415,8 @@ void DivPlatformMMC5::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformMMC5::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformMMC5::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
-  apuType=flags;
   dumpWrites=false;
   skipRegisterWrites=false;
   writeOscBuf=0;
diff --git a/src/engine/platform/mmc5.h b/src/engine/platform/mmc5.h
index 0da3da32..ddad9ec2 100644
--- a/src/engine/platform/mmc5.h
+++ b/src/engine/platform/mmc5.h
@@ -63,7 +63,6 @@ class DivPlatformMMC5: public DivDispatch {
   unsigned int dacPos;
   int dacSample;
   unsigned char sampleBank;
-  unsigned char apuType;
   unsigned char writeOscBuf;
   struct _mmc5* mmc5;
   unsigned char regPool[128];
@@ -85,12 +84,12 @@ class DivPlatformMMC5: public DivDispatch {
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
     float getPostAmp();
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformMMC5();
 };
diff --git a/src/engine/platform/msm6258.cpp b/src/engine/platform/msm6258.cpp
index 05465bbe..3d8ec38c 100644
--- a/src/engine/platform/msm6258.cpp
+++ b/src/engine/platform/msm6258.cpp
@@ -387,8 +387,8 @@ void DivPlatformMSM6258::renderSamples() {
   adpcmMemLen=memPos+256;
 }
 
-void DivPlatformMSM6258::setFlags(unsigned int flags) {
-  switch (flags) {
+void DivPlatformMSM6258::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
     case 3:
       chipClock=8192000;
       break;
@@ -408,7 +408,7 @@ void DivPlatformMSM6258::setFlags(unsigned int flags) {
   }
 }
 
-int DivPlatformMSM6258::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformMSM6258::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   adpcmMem=new unsigned char[getSampleMemCapacity(0)];
   adpcmMemLen=0;
diff --git a/src/engine/platform/msm6258.h b/src/engine/platform/msm6258.h
index f06bdc26..02ec7e14 100644
--- a/src/engine/platform/msm6258.h
+++ b/src/engine/platform/msm6258.h
@@ -108,14 +108,14 @@ class DivPlatformMSM6258: public DivDispatch {
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     const char** getRegisterSheet();
     const void* getSampleMem(int index);
     size_t getSampleMemCapacity(int index);
     size_t getSampleMemUsage(int index);
     void renderSamples();
     
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformMSM6258();
 };
diff --git a/src/engine/platform/msm6295.cpp b/src/engine/platform/msm6295.cpp
index 8b9c573d..0f570d9c 100644
--- a/src/engine/platform/msm6295.cpp
+++ b/src/engine/platform/msm6295.cpp
@@ -376,13 +376,9 @@ void DivPlatformMSM6295::renderSamples() {
   }
 }
 
-void DivPlatformMSM6295::setFlags(unsigned int flags) {
-  rateSelInit=(flags>>7)&1;
-  switch (flags&0x7f) {
-    default:
-    case 0:
-      chipClock=4000000/4;
-      break;
+void DivPlatformMSM6295::setFlags(const DivConfig& flags) {
+  rateSelInit=flags.getBool("rateSel",false);
+  switch (flags.getInt("clockSel",0)) {
     case 1:
       chipClock=4224000/4;
       break;
@@ -425,6 +421,9 @@ void DivPlatformMSM6295::setFlags(unsigned int flags) {
     case 14:
       chipClock=COLOR_NTSC/3.0;
       break;
+    default:
+      chipClock=4000000/4;
+      break;
   }
   rate=chipClock/3;
   for (int i=0; i<4; i++) {
@@ -436,7 +435,7 @@ void DivPlatformMSM6295::setFlags(unsigned int flags) {
   }
 }
 
-int DivPlatformMSM6295::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformMSM6295::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   adpcmMem=new unsigned char[getSampleMemCapacity(0)];
   adpcmMemLen=0;
diff --git a/src/engine/platform/msm6295.h b/src/engine/platform/msm6295.h
index 5fc5ac7b..40d35757 100644
--- a/src/engine/platform/msm6295.h
+++ b/src/engine/platform/msm6295.h
@@ -96,14 +96,14 @@ class DivPlatformMSM6295: public DivDispatch, public vgsound_emu_mem_intf {
     virtual void notifyInsDeletion(void* ins) override;
     virtual void poke(unsigned int addr, unsigned short val) override;
     virtual void poke(std::vector<DivRegWrite>& wlist) override;
-    virtual void setFlags(unsigned int flags) override;
+    virtual void setFlags(const DivConfig& flags) override;
     virtual const char** getRegisterSheet() override;
     virtual const void* getSampleMem(int index) override;
     virtual size_t getSampleMemCapacity(int index) override;
     virtual size_t getSampleMemUsage(int index) override;
     virtual void renderSamples() override;
 
-    virtual int init(DivEngine* parent, int channels, int sugRate, unsigned int flags) override;
+    virtual int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) override;
     virtual void quit() override;
     DivPlatformMSM6295():
       DivDispatch(),
diff --git a/src/engine/platform/n163.cpp b/src/engine/platform/n163.cpp
index 1597d0fa..26d42e45 100644
--- a/src/engine/platform/n163.cpp
+++ b/src/engine/platform/n163.cpp
@@ -621,20 +621,20 @@ void DivPlatformN163::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-void DivPlatformN163::setFlags(unsigned int flags) {
-  switch (flags&0xf) {
-    case 0x0: // NTSC
-      rate=COLOR_NTSC/2.0;
-      break;
-    case 0x1: // PAL
+void DivPlatformN163::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
+    case 1: // PAL
       rate=COLOR_PAL*3.0/8.0;
       break;
-    case 0x2: // Dendy
+    case 2: // Dendy
       rate=COLOR_PAL*2.0/5.0;
       break;
+    default: // NTSC
+      rate=COLOR_NTSC/2.0;
+      break;
   }
-  initChanMax=chanMax=(flags>>4)&7;
-  multiplex=((flags>>7)&1)?false:true; // not accurate in real hardware
+  initChanMax=chanMax=flags.getInt("channels",0)&7;
+  multiplex=!flags.getBool("multiplex",false); // not accurate in real hardware
   chipClock=rate;
   rate/=15;
   n163.set_multiplex(multiplex);
@@ -647,7 +647,7 @@ void DivPlatformN163::setFlags(unsigned int flags) {
   reset();
 }
 
-int DivPlatformN163::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformN163::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/n163.h b/src/engine/platform/n163.h
index 0ff969b6..2f8e5ef9 100644
--- a/src/engine/platform/n163.h
+++ b/src/engine/platform/n163.h
@@ -104,14 +104,14 @@ class DivPlatformN163: public DivDispatch {
     void forceIns();
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyWaveChange(int wave);
     void notifyInsChange(int ins);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformN163();
 };
diff --git a/src/engine/platform/namcowsg.cpp b/src/engine/platform/namcowsg.cpp
index 236790e3..aab625b1 100644
--- a/src/engine/platform/namcowsg.cpp
+++ b/src/engine/platform/namcowsg.cpp
@@ -530,7 +530,7 @@ void DivPlatformNamcoWSG::setDeviceType(int type) {
   }
 }
 
-void DivPlatformNamcoWSG::setFlags(unsigned int flags) {
+void DivPlatformNamcoWSG::setFlags(const DivConfig& flags) {
   chipClock=3072000;
   rate=chipClock/32;
   namco->device_clock_changed(rate);
@@ -547,7 +547,7 @@ void DivPlatformNamcoWSG::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformNamcoWSG::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformNamcoWSG::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/namcowsg.h b/src/engine/platform/namcowsg.h
index 56a8ba3c..1656dedd 100644
--- a/src/engine/platform/namcowsg.h
+++ b/src/engine/platform/namcowsg.h
@@ -91,13 +91,13 @@ class DivPlatformNamcoWSG: public DivDispatch {
     bool isStereo();
     bool keyOffAffectsArp(int ch);
     void setDeviceType(int type);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformNamcoWSG();
 };
diff --git a/src/engine/platform/nes.cpp b/src/engine/platform/nes.cpp
index d087ac81..5749167b 100644
--- a/src/engine/platform/nes.cpp
+++ b/src/engine/platform/nes.cpp
@@ -640,11 +640,12 @@ bool DivPlatformNES::keyOffAffectsArp(int ch) {
   return true;
 }
 
-void DivPlatformNES::setFlags(unsigned int flags) {
-  if (flags==2) { // Dendy
+void DivPlatformNES::setFlags(const DivConfig& flags) {
+  int clockSel=flags.getInt("clockSel",0);
+  if (clockSel==2) { // Dendy
     rate=COLOR_PAL*2.0/5.0;
     apuType=2;
-  } else if (flags==1) { // PAL
+  } else if (clockSel==1) { // PAL
     rate=COLOR_PAL*3.0/8.0;
     apuType=1;
   } else { // NTSC
@@ -730,9 +731,8 @@ void DivPlatformNES::renderSamples() {
   dpcmMemLen=memPos;
 }
 
-int DivPlatformNES::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformNES::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
-  apuType=flags;
   dumpWrites=false;
   skipRegisterWrites=false;
   if (useNP) {
diff --git a/src/engine/platform/nes.h b/src/engine/platform/nes.h
index e8e04e9e..ef4a9e72 100644
--- a/src/engine/platform/nes.h
+++ b/src/engine/platform/nes.h
@@ -104,7 +104,7 @@ class DivPlatformNES: public DivDispatch {
     float getPostAmp();
     unsigned char readDMC(unsigned short addr);
     void setNSFPlay(bool use);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
@@ -113,7 +113,7 @@ class DivPlatformNES: public DivDispatch {
     size_t getSampleMemCapacity(int index);
     size_t getSampleMemUsage(int index);
     void renderSamples();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformNES();
 };
diff --git a/src/engine/platform/opl.cpp b/src/engine/platform/opl.cpp
index 76adeafd..1157bf50 100644
--- a/src/engine/platform/opl.cpp
+++ b/src/engine/platform/opl.cpp
@@ -1646,7 +1646,7 @@ void DivPlatformOPL::setOPLType(int type, bool drums) {
   properDrumsSys=drums;
 }
 
-void DivPlatformOPL::setFlags(unsigned int flags) {
+void DivPlatformOPL::setFlags(const DivConfig& flags) {
   /*
   if (flags==3) {
     chipClock=COLOR_NTSC*12.0/7.0;
@@ -1674,7 +1674,7 @@ void DivPlatformOPL::setFlags(unsigned int flags) {
   switch (chipType) {
     default:
     case 1: case 2: case 8950:
-      switch (flags&0xff) {
+      switch (flags.getInt("clockSel",0)) {
         case 0x01:
           chipClock=COLOR_PAL*4.0/5.0;
           break;
@@ -1698,7 +1698,7 @@ void DivPlatformOPL::setFlags(unsigned int flags) {
       chipRateBase=rate;
       break;
     case 3:
-      switch (flags&0xff) {
+      switch (flags.getInt("clockSel",0)) {
         case 0x01:
           chipClock=COLOR_PAL*16.0/5.0;
           break;
@@ -1719,7 +1719,7 @@ void DivPlatformOPL::setFlags(unsigned int flags) {
       chipRateBase=rate;
       break;
     case 4:
-      switch (flags&0xff) {
+      switch (flags.getInt("clockSel",0)) {
         case 0x01:
           chipClock=COLOR_PAL*32.0/5.0;
           break;
@@ -1785,7 +1785,7 @@ void DivPlatformOPL::renderSamples() {
   adpcmBMemLen=memPos+256;
 }
 
-int DivPlatformOPL::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformOPL::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/opl.h b/src/engine/platform/opl.h
index 41be2c89..8fe8cb25 100644
--- a/src/engine/platform/opl.h
+++ b/src/engine/platform/opl.h
@@ -143,7 +143,7 @@ class DivPlatformOPL: public DivDispatch {
     bool keyOffAffectsArp(int ch);
     bool keyOffAffectsPorta(int ch);
     void toggleRegisterDump(bool enable);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsChange(int ins);
     void notifyInsDeletion(void* ins);
     int getPortaFloor(int ch);
@@ -153,7 +153,7 @@ class DivPlatformOPL: public DivDispatch {
     size_t getSampleMemCapacity(int index);
     size_t getSampleMemUsage(int index);
     void renderSamples();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformOPL();
 };
diff --git a/src/engine/platform/opll.cpp b/src/engine/platform/opll.cpp
index 5c698158..4c53350c 100644
--- a/src/engine/platform/opll.cpp
+++ b/src/engine/platform/opll.cpp
@@ -947,24 +947,25 @@ void DivPlatformOPLL::setYMFM(bool use) {
   useYMFM=use;
 }
 
-void DivPlatformOPLL::setFlags(unsigned int flags) {
-  if ((flags&15)==3) {
+void DivPlatformOPLL::setFlags(const DivConfig& flags) {
+  int clockSel=flags.getInt("clockSel",0);
+  if (clockSel==3) {
     chipClock=COLOR_NTSC/2.0;
-  } else if ((flags&15)==2) {
+  } else if (clockSel==2) {
     chipClock=4000000.0;
-  } else if ((flags&15)==1) {
+  } else if (clockSel==1) {
     chipClock=COLOR_PAL*4.0/5.0;
   } else {
     chipClock=COLOR_NTSC;
   }
   rate=chipClock/36;
-  patchSet=flags>>4;
+  patchSet=flags.getInt("patchSet",0);
   for (int i=0; i<11; i++) {
     oscBuf[i]->rate=rate/2;
   }
 }
 
-int DivPlatformOPLL::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformOPLL::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/opll.h b/src/engine/platform/opll.h
index 3f243057..390d79a9 100644
--- a/src/engine/platform/opll.h
+++ b/src/engine/platform/opll.h
@@ -117,13 +117,13 @@ class DivPlatformOPLL: public DivDispatch {
     void toggleRegisterDump(bool enable);
     void setVRC7(bool vrc);
     void setProperDrums(bool pd);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsChange(int ins);
     void notifyInsDeletion(void* ins);
     int getPortaFloor(int ch);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformOPLL();
 };
diff --git a/src/engine/platform/pce.cpp b/src/engine/platform/pce.cpp
index 19b71a1b..518b598f 100644
--- a/src/engine/platform/pce.cpp
+++ b/src/engine/platform/pce.cpp
@@ -557,14 +557,13 @@ void DivPlatformPCE::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformPCE::setFlags(unsigned int flags) {
-  if (flags&1) { // technically there is no PAL PC Engine but oh well...
+void DivPlatformPCE::setFlags(const DivConfig& flags) {
+  if (flags.getInt("clockSel",0)) { // technically there is no PAL PC Engine but oh well...
     chipClock=COLOR_PAL*4.0/5.0;
   } else {
     chipClock=COLOR_NTSC;
   }
-  // flags&4 will be chip revision
-  antiClickEnabled=!(flags&8);
+  antiClickEnabled=!flags.getBool("noAntiClick",false);
   rate=chipClock/12;
   for (int i=0; i<6; i++) {
     oscBuf[i]->rate=rate;
@@ -574,7 +573,7 @@ void DivPlatformPCE::setFlags(unsigned int flags) {
     delete pce;
     pce=NULL;
   }
-  pce=new PCE_PSG(tempL,tempR,(flags&4)?PCE_PSG::REVISION_HUC6280A:PCE_PSG::REVISION_HUC6280);
+  pce=new PCE_PSG(tempL,tempR,flags.getInt("chipType",0)?PCE_PSG::REVISION_HUC6280A:PCE_PSG::REVISION_HUC6280);
 }
 
 void DivPlatformPCE::poke(unsigned int addr, unsigned short val) {
@@ -585,7 +584,7 @@ void DivPlatformPCE::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformPCE::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformPCE::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/pce.h b/src/engine/platform/pce.h
index ec030834..a7878310 100644
--- a/src/engine/platform/pce.h
+++ b/src/engine/platform/pce.h
@@ -107,13 +107,13 @@ class DivPlatformPCE: public DivDispatch {
     void muteChannel(int ch, bool mute);
     bool isStereo();
     bool keyOffAffectsArp(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformPCE();
 };
diff --git a/src/engine/platform/pcmdac.cpp b/src/engine/platform/pcmdac.cpp
index ae3362ec..b961b33e 100644
--- a/src/engine/platform/pcmdac.cpp
+++ b/src/engine/platform/pcmdac.cpp
@@ -382,18 +382,17 @@ void DivPlatformPCMDAC::notifyInsDeletion(void* ins) {
   chan.std.notifyInsDeletion((DivInstrument*)ins);
 }
 
-void DivPlatformPCMDAC::setFlags(unsigned int flags) {
+void DivPlatformPCMDAC::setFlags(const DivConfig& flags) {
   // default to 44100Hz 16-bit stereo
-  if (!flags) flags=0x1f0000|44099;
-  rate=(flags&0xffff)+1;
+  rate=flags.getInt("rate",44100);
   // rate can't be too low or the resampler will break
   if (rate<1000) rate=1000;
   chipClock=rate;
-  outDepth=(flags>>16)&0xf;
-  outStereo=(flags>>20)&1;
+  outDepth=(flags.getInt("outDepth",15))&15;
+  outStereo=flags.getBool("stereo",true);
 }
 
-int DivPlatformPCMDAC::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformPCMDAC::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/pcmdac.h b/src/engine/platform/pcmdac.h
index 7292f6dd..46b9e224 100644
--- a/src/engine/platform/pcmdac.h
+++ b/src/engine/platform/pcmdac.h
@@ -91,11 +91,11 @@ class DivPlatformPCMDAC: public DivDispatch {
     void muteChannel(int ch, bool mute);
     bool isStereo();
     DivMacroInt* getChanMacroInt(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsChange(int ins);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
 };
 
diff --git a/src/engine/platform/pcspkr.cpp b/src/engine/platform/pcspkr.cpp
index ab3b8a7c..42a9ac5c 100644
--- a/src/engine/platform/pcspkr.cpp
+++ b/src/engine/platform/pcspkr.cpp
@@ -586,10 +586,10 @@ bool DivPlatformPCSpeaker::keyOffAffectsArp(int ch) {
   return true;
 }
 
-void DivPlatformPCSpeaker::setFlags(unsigned int flags) {
+void DivPlatformPCSpeaker::setFlags(const DivConfig& flags) {
   chipClock=COLOR_NTSC/3.0;
   rate=chipClock/PCSPKR_DIVIDER;
-  speakerType=flags&3;
+  speakerType=flags.getInt("speakerType",0)&3;
   oscBuf->rate=rate;
 }
 
@@ -611,7 +611,7 @@ void DivPlatformPCSpeaker::poke(std::vector<DivRegWrite>& wlist) {
   // ???
 }
 
-int DivPlatformPCSpeaker::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformPCSpeaker::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/pcspkr.h b/src/engine/platform/pcspkr.h
index 48bf1bf5..9d84c210 100644
--- a/src/engine/platform/pcspkr.h
+++ b/src/engine/platform/pcspkr.h
@@ -108,13 +108,13 @@ class DivPlatformPCSpeaker: public DivDispatch {
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     void notifyPlaybackStop();
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformPCSpeaker();
 };
diff --git a/src/engine/platform/pet.cpp b/src/engine/platform/pet.cpp
index c314edf6..8a606ecf 100644
--- a/src/engine/platform/pet.cpp
+++ b/src/engine/platform/pet.cpp
@@ -295,7 +295,7 @@ void DivPlatformPET::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformPET::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformPET::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/pet.h b/src/engine/platform/pet.h
index 3046cc26..17c0686f 100644
--- a/src/engine/platform/pet.h
+++ b/src/engine/platform/pet.h
@@ -81,7 +81,7 @@ class DivPlatformPET: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformPET();
   private:
diff --git a/src/engine/platform/qsound.cpp b/src/engine/platform/qsound.cpp
index 2b54a90a..31525528 100644
--- a/src/engine/platform/qsound.cpp
+++ b/src/engine/platform/qsound.cpp
@@ -592,14 +592,14 @@ void DivPlatformQSound::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformQSound::setFlags(unsigned int flags) {
-  echoDelay = 2725 - (flags & 0xfff);
-  echoFeedback = (flags >> 12) & 255;
+void DivPlatformQSound::setFlags(const DivConfig& flags) {
+  echoDelay = 2725 - flags.getInt("echoDelay",0);
+  echoFeedback = flags.getInt("echoFeedback",0) & 255;
 
-  if(echoDelay < 0) {
+  if (echoDelay < 0) {
     echoDelay = 0;
   }
-  if(echoDelay > 2725) {
+  if (echoDelay > 2725) {
     echoDelay = 2725;
   }
   //rate=chipClock/CHIP_DIVIDER;
@@ -678,7 +678,7 @@ void DivPlatformQSound::renderSamples() {
   sampleMemLen=memPos+256;
 }
 
-int DivPlatformQSound::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformQSound::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/qsound.h b/src/engine/platform/qsound.h
index 7743e594..89488627 100644
--- a/src/engine/platform/qsound.h
+++ b/src/engine/platform/qsound.h
@@ -93,7 +93,7 @@ class DivPlatformQSound: public DivDispatch {
     void muteChannel(int ch, bool mute);
     bool isStereo();
     bool keyOffAffectsArp(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsChange(int ins);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
@@ -104,7 +104,7 @@ class DivPlatformQSound: public DivDispatch {
     size_t getSampleMemCapacity(int index = 0);
     size_t getSampleMemUsage(int index = 0);
     void renderSamples();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
 };
 
diff --git a/src/engine/platform/rf5c68.cpp b/src/engine/platform/rf5c68.cpp
index dccd0fd2..d0786896 100644
--- a/src/engine/platform/rf5c68.cpp
+++ b/src/engine/platform/rf5c68.cpp
@@ -342,13 +342,13 @@ void DivPlatformRF5C68::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformRF5C68::setFlags(unsigned int flags) {
-  switch (flags&0x0f) {
+void DivPlatformRF5C68::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
     case 1: chipClock=10000000; break;
     case 2: chipClock=12500000; break;
     default: chipClock=8000000; break;
   }
-  chipType=flags>>4;
+  chipType=flags.getInt("chipType",0);
   rate=chipClock/384;
   for (int i=0; i<8; i++) {
     oscBuf[i]->rate=rate;
@@ -416,7 +416,7 @@ void DivPlatformRF5C68::renderSamples() {
   sampleMemLen=memPos;
 }
 
-int DivPlatformRF5C68::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformRF5C68::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/rf5c68.h b/src/engine/platform/rf5c68.h
index 840ece46..4c64c2d6 100644
--- a/src/engine/platform/rf5c68.h
+++ b/src/engine/platform/rf5c68.h
@@ -92,7 +92,7 @@ class DivPlatformRF5C68: public DivDispatch {
     void notifyInsChange(int ins);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
@@ -100,7 +100,7 @@ class DivPlatformRF5C68: public DivDispatch {
     size_t getSampleMemCapacity(int index = 0);
     size_t getSampleMemUsage(int index = 0);
     void renderSamples();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
   private:
     void chWrite(unsigned char ch, unsigned int addr, unsigned char val);
diff --git a/src/engine/platform/saa.cpp b/src/engine/platform/saa.cpp
index b7a77d96..acbecf68 100644
--- a/src/engine/platform/saa.cpp
+++ b/src/engine/platform/saa.cpp
@@ -422,10 +422,11 @@ void DivPlatformSAA1099::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformSAA1099::setFlags(unsigned int flags) {
-  if (flags==2) {
+void DivPlatformSAA1099::setFlags(const DivConfig& flags) {
+  int clockSel=flags.getInt("clockSel",0);
+  if (clockSel==2) {
     chipClock=COLOR_PAL*8.0/5.0;
-  } else if (flags==1) {
+  } else if (clockSel==1) {
     chipClock=COLOR_NTSC*2.0;
   } else {
     chipClock=8000000;
@@ -448,7 +449,7 @@ void DivPlatformSAA1099::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformSAA1099::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformSAA1099::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/saa.h b/src/engine/platform/saa.h
index d2092efb..6bae715e 100644
--- a/src/engine/platform/saa.h
+++ b/src/engine/platform/saa.h
@@ -89,7 +89,7 @@ class DivPlatformSAA1099: public DivDispatch {
     void forceIns();
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     bool isStereo();
     int getPortaFloor(int ch);
     bool keyOffAffectsArp(int ch);
@@ -97,7 +97,7 @@ class DivPlatformSAA1099: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
 };
 #endif
diff --git a/src/engine/platform/scc.cpp b/src/engine/platform/scc.cpp
index 725c53da..a8fbcd7c 100644
--- a/src/engine/platform/scc.cpp
+++ b/src/engine/platform/scc.cpp
@@ -360,11 +360,8 @@ void DivPlatformSCC::setChipModel(bool isplus) {
   isPlus=isplus;
 }
 
-void DivPlatformSCC::setFlags(unsigned int flags) {
-  switch (flags&0x7f) {
-    case 0x00:
-      chipClock=COLOR_NTSC/2.0;
-      break;
+void DivPlatformSCC::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
     case 0x01:
       chipClock=COLOR_PAL*2.0/5.0;
       break;
@@ -374,6 +371,9 @@ void DivPlatformSCC::setFlags(unsigned int flags) {
     case 0x03:
       chipClock=4000000.0/2.0;
       break;
+    default:
+      chipClock=COLOR_NTSC/2.0;
+      break;
   }
   rate=chipClock/8;
   for (int i=0; i<5; i++) {
@@ -381,7 +381,7 @@ void DivPlatformSCC::setFlags(unsigned int flags) {
   }
 }
 
-int DivPlatformSCC::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformSCC::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/scc.h b/src/engine/platform/scc.h
index 20dcf4a9..ed886547 100644
--- a/src/engine/platform/scc.h
+++ b/src/engine/platform/scc.h
@@ -85,8 +85,8 @@ class DivPlatformSCC: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    void setFlags(unsigned int flags);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    void setFlags(const DivConfig& flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void setChipModel(bool isPlus);
     void quit();
     ~DivPlatformSCC();
diff --git a/src/engine/platform/segapcm.cpp b/src/engine/platform/segapcm.cpp
index 8bec9f30..fc389a81 100644
--- a/src/engine/platform/segapcm.cpp
+++ b/src/engine/platform/segapcm.cpp
@@ -17,7 +17,6 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-// TODO: new macro formula
 #include "segapcm.h"
 #include "../engine.h"
 #include "../../ta-log.h"
@@ -485,7 +484,7 @@ void DivPlatformSegaPCM::reset() {
   }
  }
 
-void DivPlatformSegaPCM::setFlags(unsigned int flags) {
+void DivPlatformSegaPCM::setFlags(const DivConfig& flags) {
   chipClock=8000000.0;
   rate=31250;
   for (int i=0; i<16; i++) {
@@ -497,7 +496,7 @@ bool DivPlatformSegaPCM::isStereo() {
   return true;
 }
 
-int DivPlatformSegaPCM::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformSegaPCM::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/segapcm.h b/src/engine/platform/segapcm.h
index 2a76143b..222f4bd9 100644
--- a/src/engine/platform/segapcm.h
+++ b/src/engine/platform/segapcm.h
@@ -111,11 +111,11 @@ class DivPlatformSegaPCM: public DivDispatch {
     void muteChannel(int ch, bool mute);
     void notifyInsChange(int ins);
     void renderSamples();
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     bool isStereo();
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformSegaPCM();
 };
diff --git a/src/engine/platform/sms.cpp b/src/engine/platform/sms.cpp
index e4d408f7..ffafc0cb 100644
--- a/src/engine/platform/sms.cpp
+++ b/src/engine/platform/sms.cpp
@@ -429,85 +429,78 @@ void DivPlatformSMS::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-void DivPlatformSMS::setFlags(unsigned int flags) {
-  switch (flags&0xff03) {
-    default:
-    case 0x0000:
-      chipClock=COLOR_NTSC;
-      break;
-    case 0x0001:
+void DivPlatformSMS::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
+    case 1:
       chipClock=COLOR_PAL*4.0/5.0;
       break;
-    case 0x0002:
+    case 2:
       chipClock=4000000;
       break;
-    case 0x0003:
+    case 3:
       chipClock=COLOR_NTSC/2.0;
       break;
-    case 0x0100:
+    case 4:
       chipClock=3000000;
       break;
-    case 0x0101:
+    case 5:
       chipClock=2000000;
       break;
-    case 0x0102:
+    case 6:
       chipClock=COLOR_NTSC/8.0;
       break;
+    default:
+      chipClock=COLOR_NTSC;
+      break;
   }
-  resetPhase=!(flags&16);
+  resetPhase=!flags.getBool("noPhaseReset",false);
   divider=16;
   toneDivider=64.0;
   noiseDivider=64.0;
   if (sn!=NULL) delete sn;
-  switch (flags&0xcc) {
-    default: // Sega
-    case 0x00:
-      sn=new segapsg_device();
-      isRealSN=false;
-      stereo=false;
-      break;
-    case 0x04: // TI SN76489
+  switch (flags.getInt("chipType",0)) {
+    case 1: // TI SN76489
       sn=new sn76489_device();
       isRealSN=true;
       stereo=false;
       noiseDivider=60.0; // 64 for match to tone frequency on non-Sega PSG but compatibility
       break;
-    case 0x08: // TI+Atari
+    case 2: // TI+Atari
       sn=new sn76496_base_device(0x4000, 0x0f35, 0x01, 0x02, true, false, 1/*8*/, false, true);
       isRealSN=true;
       stereo=false;
       noiseDivider=60.0;
       break;
-    case 0x0c: // Game Gear (not fully emulated yet!)
+    case 3: // Game Gear (not fully emulated yet!)
       sn=new gamegear_device();
       isRealSN=false;
       stereo=true;
       break;
-    case 0x40: // TI SN76489A
+    case 4: // TI SN76489A
       sn=new sn76489a_device();
       isRealSN=false; // TODO
       stereo=false;
       noiseDivider=60.0;
       break;
-    case 0x44: // TI SN76496
+    case 5: // TI SN76496
       sn=new sn76496_device();
       isRealSN=false; // TODO
       stereo=false;
       noiseDivider=60.0;
       break;
-    case 0x48: // NCR 8496
+    case 6: // NCR 8496
       sn=new ncr8496_device();
       isRealSN=false;
       stereo=false;
       noiseDivider=60.0;
       break;
-    case 0x4c: // Tandy PSSJ 3-voice sound
+    case 7: // Tandy PSSJ 3-voice sound
       sn=new pssj3_device();
       isRealSN=false;
       stereo=false;
       noiseDivider=60.0;
       break;
-    case 0x80: // TI SN94624
+    case 8: // TI SN94624
       sn=new sn94624_device();
       isRealSN=true;
       stereo=false;
@@ -515,7 +508,7 @@ void DivPlatformSMS::setFlags(unsigned int flags) {
       toneDivider=8.0;
       noiseDivider=7.5;
       break;
-    case 0x84: // TI SN76494
+    case 9: // TI SN76494
       sn=new sn76494_device();
       isRealSN=false; // TODO
       stereo=false;
@@ -523,6 +516,11 @@ void DivPlatformSMS::setFlags(unsigned int flags) {
       toneDivider=8.0;
       noiseDivider=7.5;
       break;
+    default: // Sega
+      sn=new segapsg_device();
+      isRealSN=false;
+      stereo=false;
+      break;
   }
   rate=chipClock/divider;
   for (int i=0; i<4; i++) {
@@ -534,7 +532,7 @@ void DivPlatformSMS::setNuked(bool value) {
   nuked=value;
 }
 
-int DivPlatformSMS::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformSMS::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/sms.h b/src/engine/platform/sms.h
index b382d38d..0a4b121f 100644
--- a/src/engine/platform/sms.h
+++ b/src/engine/platform/sms.h
@@ -97,13 +97,13 @@ class DivPlatformSMS: public DivDispatch {
     bool keyOffAffectsArp(int ch);
     bool keyOffAffectsPorta(int ch);
     int getPortaFloor(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
     void setNuked(bool value);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformSMS();
 };
diff --git a/src/engine/platform/snes.cpp b/src/engine/platform/snes.cpp
index e99db88a..f76047c8 100644
--- a/src/engine/platform/snes.cpp
+++ b/src/engine/platform/snes.cpp
@@ -767,12 +767,12 @@ void DivPlatformSNES::renderSamples() {
   memcpy(sampleMem,copyOfSampleMem,65536);
 }
 
-void DivPlatformSNES::setFlags(unsigned int flags) {
-  globalVolL=127-(flags&127);
-  globalVolR=127-((flags>>8)&127);
+void DivPlatformSNES::setFlags(const DivConfig& flags) {
+  globalVolL=127-flags.getInt("volScaleL",0);
+  globalVolR=127-flags.getInt("volScaleR",0);
 }
 
-int DivPlatformSNES::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformSNES::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/snes.h b/src/engine/platform/snes.h
index 61ddb486..0bc8cacf 100644
--- a/src/engine/platform/snes.h
+++ b/src/engine/platform/snes.h
@@ -117,7 +117,7 @@ class DivPlatformSNES: public DivDispatch {
     bool isStereo();
     void notifyInsChange(int ins);
     void notifyWaveChange(int wave);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
@@ -126,7 +126,7 @@ class DivPlatformSNES: public DivDispatch {
     size_t getSampleMemCapacity(int index = 0);
     size_t getSampleMemUsage(int index = 0);
     void renderSamples();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
   private:
     void updateWave(int ch);
diff --git a/src/engine/platform/su.cpp b/src/engine/platform/su.cpp
index cd0aea34..66b91ef5 100644
--- a/src/engine/platform/su.cpp
+++ b/src/engine/platform/su.cpp
@@ -505,8 +505,8 @@ void DivPlatformSoundUnit::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformSoundUnit::setFlags(unsigned int flags) {
-  if (flags&1) {
+void DivPlatformSoundUnit::setFlags(const DivConfig& flags) {
+  if (flags.getInt("clockSel",0)) {
     chipClock=1190000;
   } else {
     chipClock=1236000;
@@ -515,14 +515,15 @@ void DivPlatformSoundUnit::setFlags(unsigned int flags) {
   for (int i=0; i<8; i++) {
     oscBuf[i]->rate=rate;
   }
-  initIlCtrl=3|(flags&4);
-  initIlSize=((flags>>8)&63)|((flags&4)?0x40:0)|((flags&8)?0x80:0);
-  initFil1=flags>>16;
-  initEchoVol=flags>>24;
+  bool echoOn=flags.getBool("echo",false);
+  initIlCtrl=3|(echoOn?4:0);
+  initIlSize=((flags.getInt("echoDelay",0))&63)|(echoOn?0x40:0)|(flags.getBool("swapEcho",false)?0x80:0);
+  initFil1=flags.getInt("echoFeedback",0);
+  initEchoVol=flags.getInt("echoVol",0);
 
-  sampleMemSize=flags&16;
+  sampleMemSize=flags.getInt("sampleMemSize",0);
 
-  su->Init(sampleMemSize?65536:8192,flags&32);
+  su->Init(sampleMemSize?65536:8192,flags.getBool("pdm",false));
   renderSamples();
 }
 
@@ -572,7 +573,7 @@ void DivPlatformSoundUnit::renderSamples() {
 
 }
 
-int DivPlatformSoundUnit::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformSoundUnit::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/su.h b/src/engine/platform/su.h
index 784186c6..004c04c5 100644
--- a/src/engine/platform/su.h
+++ b/src/engine/platform/su.h
@@ -130,7 +130,7 @@ class DivPlatformSoundUnit: public DivDispatch {
     void muteChannel(int ch, bool mute);
     bool isStereo();
     bool keyOffAffectsArp(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
@@ -139,7 +139,7 @@ class DivPlatformSoundUnit: public DivDispatch {
     size_t getSampleMemCapacity(int index);
     size_t getSampleMemUsage(int index);
     void renderSamples();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformSoundUnit();
 };
diff --git a/src/engine/platform/swan.cpp b/src/engine/platform/swan.cpp
index 9db46d14..222af4a5 100644
--- a/src/engine/platform/swan.cpp
+++ b/src/engine/platform/swan.cpp
@@ -509,7 +509,7 @@ void DivPlatformSwan::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformSwan::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformSwan::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/swan.h b/src/engine/platform/swan.h
index 473667a9..8261e634 100644
--- a/src/engine/platform/swan.h
+++ b/src/engine/platform/swan.h
@@ -94,7 +94,7 @@ class DivPlatformSwan: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformSwan();
   private:
diff --git a/src/engine/platform/tia.cpp b/src/engine/platform/tia.cpp
index 796c9448..d4703e28 100644
--- a/src/engine/platform/tia.cpp
+++ b/src/engine/platform/tia.cpp
@@ -350,21 +350,21 @@ void DivPlatformTIA::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-void DivPlatformTIA::setFlags(unsigned int flags) {
-  if (flags&1) {
+void DivPlatformTIA::setFlags(const DivConfig& flags) {
+  if (flags.getInt("clockSel",0)) {
     rate=COLOR_PAL*4.0/5.0;
   } else {
     rate=COLOR_NTSC;
   }
   chipClock=rate;
-  mixingType=(flags>>1)&3;
+  mixingType=flags.getInt("mixingType",0)&3;
   for (int i=0; i<2; i++) {
     oscBuf[i]->rate=rate/114;
   }
   tia.reset(mixingType);
 }
 
-int DivPlatformTIA::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformTIA::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/tia.h b/src/engine/platform/tia.h
index 3eb32b97..85bfcabe 100644
--- a/src/engine/platform/tia.h
+++ b/src/engine/platform/tia.h
@@ -63,7 +63,7 @@ class DivPlatformTIA: public DivDispatch {
     void forceIns();
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     float getPostAmp();
     bool isStereo();
     bool keyOffAffectsArp(int ch);
@@ -71,7 +71,7 @@ class DivPlatformTIA: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
 };
 #endif
diff --git a/src/engine/platform/tx81z.cpp b/src/engine/platform/tx81z.cpp
index fa29cda6..c205435e 100644
--- a/src/engine/platform/tx81z.cpp
+++ b/src/engine/platform/tx81z.cpp
@@ -914,11 +914,12 @@ void DivPlatformTX81Z::reset() {
   extMode=false;
 }
 
-void DivPlatformTX81Z::setFlags(unsigned int flags) {
-  if (flags==2) {
+void DivPlatformTX81Z::setFlags(const DivConfig& flags) {
+  int clockSel=flags.getInt("clockSel",0);
+  if (clockSel==2) {
     chipClock=4000000.0;
     baseFreqOff=-122;
-  } else if (flags==1) {
+  } else if (clockSel==1) {
     chipClock=COLOR_PAL*4.0/5.0;
     baseFreqOff=12;
   } else {
@@ -935,7 +936,7 @@ bool DivPlatformTX81Z::isStereo() {
   return true;
 }
 
-int DivPlatformTX81Z::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformTX81Z::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/tx81z.h b/src/engine/platform/tx81z.h
index b1d09db9..5b4b9f24 100644
--- a/src/engine/platform/tx81z.h
+++ b/src/engine/platform/tx81z.h
@@ -104,12 +104,12 @@ class DivPlatformTX81Z: public DivPlatformOPM {
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
     void notifyInsChange(int ins);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     bool isStereo();
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformTX81Z();
 };
diff --git a/src/engine/platform/vera.cpp b/src/engine/platform/vera.cpp
index d0e9e00f..cd76f414 100644
--- a/src/engine/platform/vera.cpp
+++ b/src/engine/platform/vera.cpp
@@ -426,7 +426,7 @@ void DivPlatformVERA::poke(std::vector<DivRegWrite>& wlist) {
   for (auto &i: wlist) poke(i.addr,i.val);
 }
 
-int DivPlatformVERA::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformVERA::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   for (int i=0; i<17; i++) {
     isMuted[i]=false;
     oscBuf[i]=new DivDispatchOscBuffer;
diff --git a/src/engine/platform/vera.h b/src/engine/platform/vera.h
index 9cda0120..fec113fc 100644
--- a/src/engine/platform/vera.h
+++ b/src/engine/platform/vera.h
@@ -80,7 +80,7 @@ class DivPlatformVERA: public DivDispatch {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformVERA();
 };
diff --git a/src/engine/platform/vic20.cpp b/src/engine/platform/vic20.cpp
index 93c11948..d6200a16 100644
--- a/src/engine/platform/vic20.cpp
+++ b/src/engine/platform/vic20.cpp
@@ -301,8 +301,8 @@ void DivPlatformVIC20::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformVIC20::setFlags(unsigned int flags) {
-  if (flags&1) {
+void DivPlatformVIC20::setFlags(const DivConfig& flags) {
+  if (flags.getInt("clockSel",0)) {
     chipClock=COLOR_PAL/4.0;
   } else {
     chipClock=COLOR_NTSC*2.0/7.0;
@@ -321,7 +321,7 @@ void DivPlatformVIC20::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformVIC20::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformVIC20::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/vic20.h b/src/engine/platform/vic20.h
index 834051dd..21669c27 100644
--- a/src/engine/platform/vic20.h
+++ b/src/engine/platform/vic20.h
@@ -77,13 +77,13 @@ class DivPlatformVIC20: public DivDispatch {
     void forceIns();
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     bool isStereo();
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformVIC20();
   private:
diff --git a/src/engine/platform/vrc6.cpp b/src/engine/platform/vrc6.cpp
index 1fb7cbb1..52a9350c 100644
--- a/src/engine/platform/vrc6.cpp
+++ b/src/engine/platform/vrc6.cpp
@@ -479,10 +479,11 @@ bool DivPlatformVRC6::keyOffAffectsArp(int ch) {
   return true;
 }
 
-void DivPlatformVRC6::setFlags(unsigned int flags) {
-  if (flags==2) { // Dendy
+void DivPlatformVRC6::setFlags(const DivConfig& flags) {
+  int clockSel=flags.getInt("clockSel",0);
+  if (clockSel==2) { // Dendy
     rate=COLOR_PAL*2.0/5.0;
-  } else if (flags==1) { // PAL
+  } else if (clockSel==1) { // PAL
     rate=COLOR_PAL*3.0/8.0;
   } else { // NTSC
     rate=COLOR_NTSC/2.0;
@@ -507,7 +508,7 @@ void DivPlatformVRC6::poke(std::vector<DivRegWrite>& wlist) {
   for (DivRegWrite& i: wlist) rWrite(i.addr,i.val);
 }
 
-int DivPlatformVRC6::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformVRC6::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/vrc6.h b/src/engine/platform/vrc6.h
index 4c56bc79..839c089b 100644
--- a/src/engine/platform/vrc6.h
+++ b/src/engine/platform/vrc6.h
@@ -94,12 +94,12 @@ class DivPlatformVRC6: public DivDispatch, public vrcvi_intf {
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     DivPlatformVRC6() : vrc6(*this) {};
     ~DivPlatformVRC6();
diff --git a/src/engine/platform/x1_010.cpp b/src/engine/platform/x1_010.cpp
index 5f71b8fd..29e5edbd 100644
--- a/src/engine/platform/x1_010.cpp
+++ b/src/engine/platform/x1_010.cpp
@@ -903,8 +903,8 @@ void DivPlatformX1_010::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformX1_010::setFlags(unsigned int flags) {
-  switch (flags&15) {
+void DivPlatformX1_010::setFlags(const DivConfig& flags) {
+  switch (flags.getInt("clockSel",0)) {
     case 0: // 16MHz (earlier hardwares)
       chipClock=16000000;
       break;
@@ -917,7 +917,7 @@ void DivPlatformX1_010::setFlags(unsigned int flags) {
       break;
   }
   rate=chipClock/512;
-  stereo=flags&16;
+  stereo=flags.getBool("stereo",false);
   for (int i=0; i<16; i++) {
     oscBuf[i]->rate=rate;
   }
@@ -980,7 +980,7 @@ void DivPlatformX1_010::setBanked(bool banked) {
   isBanked=banked;
 }
 
-int DivPlatformX1_010::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformX1_010::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/x1_010.h b/src/engine/platform/x1_010.h
index ce3e86c1..94d03011 100644
--- a/src/engine/platform/x1_010.h
+++ b/src/engine/platform/x1_010.h
@@ -138,7 +138,7 @@ class DivPlatformX1_010: public DivDispatch, public vgsound_emu_mem_intf {
     void muteChannel(int ch, bool mute);
     bool isStereo();
     bool keyOffAffectsArp(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
@@ -149,7 +149,7 @@ class DivPlatformX1_010: public DivDispatch, public vgsound_emu_mem_intf {
     void renderSamples();
     const char** getRegisterSheet();
     void setBanked(bool banked);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     DivPlatformX1_010():
       DivDispatch(),
diff --git a/src/engine/platform/ym2203.cpp b/src/engine/platform/ym2203.cpp
index 6a086437..cd85731e 100644
--- a/src/engine/platform/ym2203.cpp
+++ b/src/engine/platform/ym2203.cpp
@@ -909,13 +909,9 @@ void DivPlatformYM2203::setSkipRegisterWrites(bool value) {
   ay->setSkipRegisterWrites(value);
 }
 
-void DivPlatformYM2203::setFlags(unsigned int flags) {
+void DivPlatformYM2203::setFlags(const DivConfig& flags) {
   // Clock flags
-  switch (flags&0x1f) {
-    default:
-    case 0x00:
-      chipClock=COLOR_NTSC;
-      break;
+  switch (flags.getInt("clockSel",0)) {
     case 0x01:
       chipClock=COLOR_PAL*4.0/5.0;
       break;
@@ -931,16 +927,12 @@ void DivPlatformYM2203::setFlags(unsigned int flags) {
     case 0x05:
       chipClock=3000000.0/2.0;
       break;
+    default:
+      chipClock=COLOR_NTSC;
+      break;
   }
   // Prescaler flags
-  switch ((flags>>5)&0x3) {
-    default:
-    case 0x00: // /6
-      prescale=0x2d;
-      fmFreqBase=4720270.0,
-      fmDivBase=36,
-      ayDiv=16;
-      break;
+  switch (flags.getInt("prescale",0)) {
     case 0x01: // /3
       prescale=0x2e;
       fmFreqBase=4720270.0/2.0,
@@ -953,6 +945,12 @@ void DivPlatformYM2203::setFlags(unsigned int flags) {
       fmDivBase=12,
       ayDiv=4;
       break;
+    default: // /6
+      prescale=0x2d;
+      fmFreqBase=4720270.0,
+      fmDivBase=36,
+      ayDiv=16;
+      break;
   }
   rate=fm->sample_rate(chipClock);
   for (int i=0; i<6; i++) {
@@ -961,10 +959,11 @@ void DivPlatformYM2203::setFlags(unsigned int flags) {
   immWrite(0x2d,0xff);
   immWrite(prescale,0xff);
   ay->setExtClockDiv(chipClock,ayDiv);
-  ay->setFlags(16);
+  ay->setFlags(ayFlags);
 }
 
-int DivPlatformYM2203::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYM2203::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
+  ayFlags.set("chipType",1);
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
@@ -976,7 +975,7 @@ int DivPlatformYM2203::init(DivEngine* p, int channels, int sugRate, unsigned in
   fm->set_fidelity(ymfm::OPN_FIDELITY_MIN);
   // YM2149, 2MHz
   ay=new DivPlatformAY8910(true,chipClock,ayDiv);
-  ay->init(p,3,sugRate,16);
+  ay->init(p,3,sugRate,ayFlags);
   ay->toggleRegisterDump(true);
   setFlags(flags);
 
diff --git a/src/engine/platform/ym2203.h b/src/engine/platform/ym2203.h
index 7a4aa797..b51a4234 100644
--- a/src/engine/platform/ym2203.h
+++ b/src/engine/platform/ym2203.h
@@ -117,8 +117,8 @@ class DivPlatformYM2203: public DivPlatformOPN {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    void setFlags(unsigned int flags);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    void setFlags(const DivConfig& flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     DivPlatformYM2203():
       DivPlatformOPN(4720270.0, 36, 16),
diff --git a/src/engine/platform/ym2203ext.cpp b/src/engine/platform/ym2203ext.cpp
index fc629487..9c404ca6 100644
--- a/src/engine/platform/ym2203ext.cpp
+++ b/src/engine/platform/ym2203ext.cpp
@@ -505,7 +505,7 @@ void DivPlatformYM2203Ext::notifyInsChange(int ins) {
   }
 }
 
-int DivPlatformYM2203Ext::init(DivEngine* parent, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYM2203Ext::init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) {
   DivPlatformYM2203::init(parent,channels,sugRate,flags);
   for (int i=0; i<4; i++) {
     isOpMuted[i]=false;
diff --git a/src/engine/platform/ym2203ext.h b/src/engine/platform/ym2203ext.h
index 9bc460af..5cf66429 100644
--- a/src/engine/platform/ym2203ext.h
+++ b/src/engine/platform/ym2203ext.h
@@ -64,7 +64,7 @@ class DivPlatformYM2203Ext: public DivPlatformYM2203 {
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
     void notifyInsChange(int ins);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformYM2203Ext();
 };
diff --git a/src/engine/platform/ym2608.cpp b/src/engine/platform/ym2608.cpp
index 87fc7914..48739823 100644
--- a/src/engine/platform/ym2608.cpp
+++ b/src/engine/platform/ym2608.cpp
@@ -1361,26 +1361,18 @@ void DivPlatformYM2608::renderSamples() {
   adpcmBMemLen=memPos+256;
 }
 
-void DivPlatformYM2608::setFlags(unsigned int flags) {
+void DivPlatformYM2608::setFlags(const DivConfig& flags) {
   // Clock flags
-  switch (flags&0x1f) {
-    default:
-    case 0x00:
-      chipClock=8000000.0;
-      break;
+  switch (flags.getInt("clockSel",0)) {
     case 0x01:
       chipClock=38400*13*16; // 31948800/4
       break;
+    default:
+      chipClock=8000000.0;
+      break;
   }
   // Prescaler flags
-  switch ((flags>>5)&0x3) {
-    default:
-    case 0x00: // /6
-      prescale=0x2d;
-      fmFreqBase=9440540.0,
-      fmDivBase=72,
-      ayDiv=32;
-      break;
+  switch (flags.getInt("prescale",0)) {
     case 0x01: // /3
       prescale=0x2e;
       fmFreqBase=9440540.0/2.0,
@@ -1393,6 +1385,12 @@ void DivPlatformYM2608::setFlags(unsigned int flags) {
       fmDivBase=24,
       ayDiv=8;
       break;
+    default: // /6
+      prescale=0x2d;
+      fmFreqBase=9440540.0,
+      fmDivBase=72,
+      ayDiv=32;
+      break;
   }
   rate=fm->sample_rate(chipClock);
   for (int i=0; i<16; i++) {
@@ -1401,11 +1399,12 @@ void DivPlatformYM2608::setFlags(unsigned int flags) {
   immWrite(0x2d,0xff);
   immWrite(prescale,0xff);
   ay->setExtClockDiv(chipClock,ayDiv);
-  ay->setFlags(16);
+  ay->setFlags(ayFlags);
 }
 
-int DivPlatformYM2608::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYM2608::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
+  ayFlags.set("chipType",1);
   adpcmBMem=new unsigned char[getSampleMemCapacity(0)];
   adpcmBMemLen=0;
   iface.adpcmBMem=adpcmBMem;
@@ -1420,7 +1419,7 @@ int DivPlatformYM2608::init(DivEngine* p, int channels, int sugRate, unsigned in
   fm->set_fidelity(ymfm::OPN_FIDELITY_MIN);
   // YM2149, 2MHz
   ay=new DivPlatformAY8910(true,chipClock,ayDiv);
-  ay->init(p,3,sugRate,16);
+  ay->init(p,3,sugRate,ayFlags);
   ay->toggleRegisterDump(true);
   setFlags(flags);
   reset();
diff --git a/src/engine/platform/ym2608.h b/src/engine/platform/ym2608.h
index a1b52320..7a9eefa9 100644
--- a/src/engine/platform/ym2608.h
+++ b/src/engine/platform/ym2608.h
@@ -138,8 +138,8 @@ class DivPlatformYM2608: public DivPlatformOPN {
     size_t getSampleMemCapacity(int index);
     size_t getSampleMemUsage(int index);
     void renderSamples();
-    void setFlags(unsigned int flags);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    void setFlags(const DivConfig& flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     DivPlatformYM2608():
       DivPlatformOPN(9440540.0, 72, 32),
diff --git a/src/engine/platform/ym2608ext.cpp b/src/engine/platform/ym2608ext.cpp
index 0b73b42c..925e7084 100644
--- a/src/engine/platform/ym2608ext.cpp
+++ b/src/engine/platform/ym2608ext.cpp
@@ -541,7 +541,7 @@ void DivPlatformYM2608Ext::notifyInsChange(int ins) {
   }
 }
 
-int DivPlatformYM2608Ext::init(DivEngine* parent, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYM2608Ext::init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) {
   DivPlatformYM2608::init(parent,channels,sugRate,flags);
   for (int i=0; i<4; i++) {
     isOpMuted[i]=false;
diff --git a/src/engine/platform/ym2608ext.h b/src/engine/platform/ym2608ext.h
index 4792323c..fc734097 100644
--- a/src/engine/platform/ym2608ext.h
+++ b/src/engine/platform/ym2608ext.h
@@ -66,7 +66,7 @@ class DivPlatformYM2608Ext: public DivPlatformYM2608 {
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
     void notifyInsChange(int ins);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformYM2608Ext();
 };
diff --git a/src/engine/platform/ym2610.cpp b/src/engine/platform/ym2610.cpp
index 89e354a9..f4a7dbfe 100644
--- a/src/engine/platform/ym2610.cpp
+++ b/src/engine/platform/ym2610.cpp
@@ -1278,7 +1278,7 @@ void DivPlatformYM2610::setSkipRegisterWrites(bool value) {
   ay->setSkipRegisterWrites(value);
 }
 
-int DivPlatformYM2610::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYM2610::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   DivPlatformYM2610Base::init(p, channels, sugRate, flags);
   reset();
   return 14;
diff --git a/src/engine/platform/ym2610.h b/src/engine/platform/ym2610.h
index cfe4a585..1572b4a2 100644
--- a/src/engine/platform/ym2610.h
+++ b/src/engine/platform/ym2610.h
@@ -58,7 +58,7 @@ class DivPlatformYM2610: public DivPlatformYM2610Base<14> {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     DivPlatformYM2610():
       DivPlatformYM2610Base<14>(1,4,7,13) {}
diff --git a/src/engine/platform/ym2610b.cpp b/src/engine/platform/ym2610b.cpp
index 3ee916a2..b19ad5d7 100644
--- a/src/engine/platform/ym2610b.cpp
+++ b/src/engine/platform/ym2610b.cpp
@@ -1345,7 +1345,7 @@ void DivPlatformYM2610B::setSkipRegisterWrites(bool value) {
   ay->setSkipRegisterWrites(value);
 }
 
-int DivPlatformYM2610B::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYM2610B::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   DivPlatformYM2610Base::init(p, channels, sugRate, flags);
   reset();
   return 16;
diff --git a/src/engine/platform/ym2610b.h b/src/engine/platform/ym2610b.h
index 488fadf9..1fba7061 100644
--- a/src/engine/platform/ym2610b.h
+++ b/src/engine/platform/ym2610b.h
@@ -54,7 +54,7 @@ class DivPlatformYM2610B: public DivPlatformYM2610Base<16> {
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     DivPlatformYM2610B():
       DivPlatformYM2610Base<16>(2,6,9,15) {}
diff --git a/src/engine/platform/ym2610bext.cpp b/src/engine/platform/ym2610bext.cpp
index 201bb598..e09f0c57 100644
--- a/src/engine/platform/ym2610bext.cpp
+++ b/src/engine/platform/ym2610bext.cpp
@@ -532,7 +532,7 @@ void DivPlatformYM2610BExt::notifyInsChange(int ins) {
   }
 }
 
-int DivPlatformYM2610BExt::init(DivEngine* parent, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYM2610BExt::init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) {
   DivPlatformYM2610B::init(parent,channels,sugRate,flags);
   for (int i=0; i<4; i++) {
     isOpMuted[i]=false;
diff --git a/src/engine/platform/ym2610bext.h b/src/engine/platform/ym2610bext.h
index fcb5e2b0..accd7eee 100644
--- a/src/engine/platform/ym2610bext.h
+++ b/src/engine/platform/ym2610bext.h
@@ -37,7 +37,7 @@ class DivPlatformYM2610BExt: public DivPlatformYM2610B {
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
     void notifyInsChange(int ins);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformYM2610BExt();
 };
diff --git a/src/engine/platform/ym2610ext.cpp b/src/engine/platform/ym2610ext.cpp
index ac82bb81..5a0fadab 100644
--- a/src/engine/platform/ym2610ext.cpp
+++ b/src/engine/platform/ym2610ext.cpp
@@ -532,7 +532,7 @@ void DivPlatformYM2610Ext::notifyInsChange(int ins) {
   }
 }
 
-int DivPlatformYM2610Ext::init(DivEngine* parent, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYM2610Ext::init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) {
   DivPlatformYM2610::init(parent,channels,sugRate,flags);
   for (int i=0; i<4; i++) {
     isOpMuted[i]=false;
diff --git a/src/engine/platform/ym2610ext.h b/src/engine/platform/ym2610ext.h
index 5cc4432c..97ce9c1c 100644
--- a/src/engine/platform/ym2610ext.h
+++ b/src/engine/platform/ym2610ext.h
@@ -37,7 +37,7 @@ class DivPlatformYM2610Ext: public DivPlatformYM2610 {
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
     void notifyInsChange(int ins);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformYM2610Ext();
 };
diff --git a/src/engine/platform/ym2610shared.h b/src/engine/platform/ym2610shared.h
index 920cf499..3641306c 100644
--- a/src/engine/platform/ym2610shared.h
+++ b/src/engine/platform/ym2610shared.h
@@ -260,15 +260,14 @@ template<int ChanNum> class DivPlatformYM2610Base: public DivPlatformOPN {
       adpcmBMemLen=memPos+256;
     }
 
-    void setFlags(unsigned int flags) {
-      switch (flags&0xff) {
-        default:
-        case 0x00:
-          chipClock=8000000.0;
-          break;
+    void setFlags(const DivConfig& flags) {
+      switch (flags.getInt("clockSel",0)) {
         case 0x01:
           chipClock=24167829/3;
           break;
+        default:
+          chipClock=8000000.0;
+          break;
       }
       rate=chipClock/16;
       for (int i=0; i<ChanNum; i++) {
@@ -276,8 +275,9 @@ template<int ChanNum> class DivPlatformYM2610Base: public DivPlatformOPN {
       }
     }
 
-    int init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+    int init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
       parent=p;
+      ayFlags.set("chipType",1);
       dumpWrites=false;
       skipRegisterWrites=false;
       for (int i=0; i<ChanNum; i++) {
@@ -296,7 +296,7 @@ template<int ChanNum> class DivPlatformYM2610Base: public DivPlatformOPN {
       setFlags(flags);
       // YM2149, 2MHz
       ay=new DivPlatformAY8910(true,chipClock,32);
-      ay->init(p,3,sugRate,16);
+      ay->init(p,3,sugRate,ayFlags);
       ay->toggleRegisterDump(true);
       return 0;
     }
diff --git a/src/engine/platform/ymz280b.cpp b/src/engine/platform/ymz280b.cpp
index e89c3f9b..b2797cd6 100644
--- a/src/engine/platform/ymz280b.cpp
+++ b/src/engine/platform/ymz280b.cpp
@@ -447,14 +447,11 @@ void DivPlatformYMZ280B::setChipModel(int type) {
   chipType=type;
 }
 
-void DivPlatformYMZ280B::setFlags(unsigned int flags) {
+void DivPlatformYMZ280B::setFlags(const DivConfig& flags) {
   switch (chipType) {
     default:
     case 280:
-      switch (flags&0xff) {
-        case 0x00:
-          chipClock=16934400;
-          break;
+      switch (flags.getInt("clockSel",0)) {
         case 0x01:
           chipClock=COLOR_NTSC*4.0;
           break;
@@ -470,6 +467,9 @@ void DivPlatformYMZ280B::setFlags(unsigned int flags) {
         case 0x05:
           chipClock=14000000;
           break;
+        default:
+          chipClock=16934400;
+          break;
       }
       rate=chipClock/384;
       break;
@@ -483,7 +483,7 @@ void DivPlatformYMZ280B::setFlags(unsigned int flags) {
   }
 }
 
-int DivPlatformYMZ280B::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformYMZ280B::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/ymz280b.h b/src/engine/platform/ymz280b.h
index e4f65848..3b4b60d5 100644
--- a/src/engine/platform/ymz280b.h
+++ b/src/engine/platform/ymz280b.h
@@ -100,8 +100,8 @@ class DivPlatformYMZ280B: public DivDispatch {
     size_t getSampleMemCapacity(int index = 0);
     size_t getSampleMemUsage(int index = 0);
     void renderSamples();
-    void setFlags(unsigned int flags);
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    void setFlags(const DivConfig& flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
   private:
     void writeOutVol(int ch);
diff --git a/src/engine/platform/zxbeeper.cpp b/src/engine/platform/zxbeeper.cpp
index 5fa3840b..76af5022 100644
--- a/src/engine/platform/zxbeeper.cpp
+++ b/src/engine/platform/zxbeeper.cpp
@@ -286,8 +286,9 @@ void DivPlatformZXBeeper::notifyInsDeletion(void* ins) {
   }
 }
 
-void DivPlatformZXBeeper::setFlags(unsigned int flags) {
-  if (flags&1) { // technically there is no PAL PC Engine but oh well...
+void DivPlatformZXBeeper::setFlags(const DivConfig& flags) {
+  // TODO: where's ZX Spectrum 48K?!
+  if (flags.getInt("clockSel",0)) {
     chipClock=COLOR_PAL*4.0/5.0;
   } else {
     chipClock=COLOR_NTSC;
@@ -306,7 +307,7 @@ void DivPlatformZXBeeper::poke(std::vector<DivRegWrite>& wlist) {
 
 }
 
-int DivPlatformZXBeeper::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
+int DivPlatformZXBeeper::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
   parent=p;
   dumpWrites=false;
   skipRegisterWrites=false;
diff --git a/src/engine/platform/zxbeeper.h b/src/engine/platform/zxbeeper.h
index b02b1fb7..ed82caee 100644
--- a/src/engine/platform/zxbeeper.h
+++ b/src/engine/platform/zxbeeper.h
@@ -87,13 +87,13 @@ class DivPlatformZXBeeper: public DivDispatch {
     void tick(bool sysTick=true);
     void muteChannel(int ch, bool mute);
     bool keyOffAffectsArp(int ch);
-    void setFlags(unsigned int flags);
+    void setFlags(const DivConfig& flags);
     void notifyWaveChange(int wave);
     void notifyInsDeletion(void* ins);
     void poke(unsigned int addr, unsigned short val);
     void poke(std::vector<DivRegWrite>& wlist);
     const char** getRegisterSheet();
-    int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
     ~DivPlatformZXBeeper();
 };