more types for partial fix for issue #537 (RAM writes to read port)

src/emucore/CartDFSC.cxx

@@ -98,8 +98,19 @@ bool CartridgeDFSC::poke(uInt16 address, uInt8 value)
     return false;
   }
 
-  pokeRAM(myRAM[address & 0x007F], pokeAddress, value);
+  if(!(address & 0x080))
-  return true;
+  {
+    pokeRAM(myRAM[address & 0x007F], pokeAddress, value);
+    return true;
+  }
+  else
+  {
+    // Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
+    uInt8 dummy;
+
+    pokeRAM(dummy, pokeAddress, value);
+    return false;
+  }
 }
 
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src/emucore/CartFA.cxx

@@ -128,8 +128,19 @@ bool CartridgeFA::poke(uInt16 address, uInt8 value)
       break;
   }
 
-  pokeRAM(myRAM[address & 0x00FF], address, value);
+  if (!(address & 0x100))
-  return true;
+  {
+    pokeRAM(myRAM[address & 0x00FF], address, value);
+    return true;
+  }
+  else
+  {
+    // Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
+    uInt8 dummy;
+
+    pokeRAM(dummy, address, value);
+    return false;
+  }
 }
 
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src/emucore/CartFA2.cxx

@@ -195,8 +195,19 @@ bool CartridgeFA2::poke(uInt16 address, uInt8 value)
       break;
   }
 
-  pokeRAM(myRAM[address & 0x00FF], address, value);
+  if(!(address & 0x100))
-  return true;
+  {
+    pokeRAM(myRAM[address & 0x00FF], address, value);
+    return true;
+  }
+  else
+  {
+    // Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
+    uInt8 dummy;
+
+    pokeRAM(dummy, address, value);
+    return false;
+  }
 }
 
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src/emucore/CartWD.cxx

@@ -129,9 +129,21 @@ bool CartridgeWD::poke(uInt16 address, uInt8 value)
   if(!(address & 0x1000))  // TIA addresses
     return mySystem->tia().poke(address, value);
   else
-    pokeRAM(myRAM[address & 0x003F], address, value);
+  {
+    if(address & 0x040)
+    {
+      pokeRAM(myRAM[address & 0x003F], address, value);
+      return true;
+    }
+    else
+    {
+      // Writing to the read port should be ignored, but (TODO) trigger a break if option enabled
+      uInt8 dummy;
 
-  return true;
+      pokeRAM(dummy, address, value);
+      return false;
+    }
+  }
 }
 
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