change how snes firmware chips survive loadstating, so that loadstate/rewind matches performance from builds earlier in 2014. still kind of slow, but basically OK.

BizHawk.Emulation.Cores/Consoles/Nintendo/SNES/LibsnesCore.cs

@@ -981,7 +981,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES
 			if (data.Length != size)
 				throw new Exception("Libsnes internal savestate size mismatch!");
 			api.CMD_init();
-			LoadCurrent(); //need to make sure chip roms are reloaded
+			//zero 01-sep-2014 - this approach isn't being used anymore, it's too slow!
+			//LoadCurrent(); //need to make sure chip roms are reloaded
 			fixed (byte* pbuf = &data[0])
 				api.CMD_unserialize(new IntPtr(pbuf), size);
 		}

libsnes/bsnes/snes/chip/armdsp/armdsp.cpp

@@ -3,6 +3,11 @@
 #define ARMDSP_CPP
 namespace SNES {
 
+//zero 01-sep-2014 - dont clobber these when reconstructing!
+uint8 *ArmDSP::firmware;
+uint8 *ArmDSP::programROM;
+uint8 *ArmDSP::dataROM;
+
 static bool trace = 0;
 
 #include "opcodes.cpp"

libsnes/bsnes/snes/chip/armdsp/armdsp.hpp

@@ -1,9 +1,12 @@
 //ARMv3 (ARM6)
 
 struct ArmDSP : public Coprocessor {
-  uint8 *firmware;
-  uint8 *programROM;
-  uint8 *dataROM;
+  
+	//zero 01-sep-2014 - dont clobber these when reconstructing!
+	static uint8 *firmware;
+  static uint8 *programROM;
+  static uint8 *dataROM;
+
   uint8 *programRAM;
 
   #include "registers.hpp"

libsnes/bsnes/snes/chip/hitachidsp/hitachidsp.cpp

@@ -9,6 +9,10 @@ namespace SNES {
 #include "serialization.cpp"
 HitachiDSP hitachidsp;
 
+//zero 01-sep-2014 - dont clobber these when reconstructing!
+unsigned HitachiDSP::frequency;
+uint24 HitachiDSP::dataROM[1024];
+
 void HitachiDSP::Enter() { hitachidsp.enter(); }
 
 void HitachiDSP::enter() {

libsnes/bsnes/snes/chip/hitachidsp/hitachidsp.hpp

@@ -2,9 +2,11 @@
 
 class HitachiDSP : public Coprocessor {
 public:
-  unsigned frequency;
-//uint16 programROM[2][256];
-  uint24 dataROM[1024];
+
+	//zero 01-sep-2014 - dont clobber these when reconstructing!
+  static unsigned frequency;
+  static uint24 dataROM[1024];
+
   uint8  dataRAM[3072];
   uint24 stack[8];
   uint16 opcode;

libsnes/bsnes/snes/chip/necdsp/necdsp.cpp

@@ -8,6 +8,13 @@ namespace SNES {
 #include "serialization.cpp"
 NECDSP necdsp;
 
+//zero 01-sep-2014 - dont clobber these when reconstructing!
+unsigned NECDSP::frequency;
+uint24 NECDSP::programROM[16384];
+uint16 NECDSP::dataROM[2048];
+unsigned NECDSP::programROMSize;
+unsigned NECDSP::dataROMSize;
+
 void NECDSP::Enter() { necdsp.enter(); }
 
 void NECDSP::enter() {

libsnes/bsnes/snes/chip/necdsp/necdsp.hpp

@@ -4,17 +4,18 @@
 class NECDSP : public Coprocessor {
 public:
   enum class Revision : unsigned { uPD7725, uPD96050 } revision;
-  unsigned frequency;
 
   #include "registers.hpp"
 
-  uint24 programROM[16384];
-  uint16 dataROM[2048];
-  uint16 dataRAM[2048];
+	//zero 01-sep-2014 - dont clobber these when reconstructing!
+  static unsigned frequency;
+  static uint24 programROM[16384];
+  static uint16 dataROM[2048];
+  static unsigned programROMSize;
+  static unsigned dataROMSize;
 
-  unsigned programROMSize;
-  unsigned dataROMSize;
   unsigned dataRAMSize;
+  uint16 dataRAM[2048];
 
   static void Enter();
   void enter();

libsnes/bsnes/target-libsnes/libsnes.cpp

@@ -222,8 +222,9 @@ void snes_init(void) {
 	//force everything to get initialized, even though it probably already is
 	SNES::interface();
 
+	//zero 01-sep-2014 - this is too slow. made rewind totally boring. made other edits to firmware chips to preserve their roms instead
 	//zero 22-may-2014 - why not this too, for the sake of completeness? 
-	reconstruct(&SNES::cartridge);
+	//reconstruct(&SNES::cartridge);
 
 	//zero 01-dec-2012 - due to systematic variable initialization fails in bsnes components, these reconstructions are necessary,
 	//and the previous comment here which called this paranoid has been removed.