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+/*******************************************************************************
+  Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
+ 
+  (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
+                            Jerremy Koot (jkoot@snes9x.com)
+
+  (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
+
+  (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
+                            funkyass (funkyass@spam.shaw.ca),
+                            Joel Yliluoma (http://iki.fi/bisqwit/)
+                            Kris Bleakley (codeviolation@hotmail.com),
+                            Matthew Kendora,
+                            Nach (n-a-c-h@users.sourceforge.net),
+                            Peter Bortas (peter@bortas.org) and
+                            zones (kasumitokoduck@yahoo.com)
+
+  C4 x86 assembler and some C emulation code
+  (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
+                            _Demo_ (_demo_@zsnes.com), and Nach
+
+  C4 C++ code
+  (c) Copyright 2003 Brad Jorsch
+
+  DSP-1 emulator code
+  (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
+                            John Weidman, neviksti (neviksti@hotmail.com),
+                            Kris Bleakley, Andreas Naive
+
+  DSP-2 emulator code
+  (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
+                     Lord Nightmare (lord_nightmare@users.sourceforge.net
+
+  OBC1 emulator code
+  (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
+                            Kris Bleakley
+  Ported from x86 assembler to C by sanmaiwashi
+
+  SPC7110 and RTC C++ emulator code
+  (c) Copyright 2002 Matthew Kendora with research by
+                     zsKnight, John Weidman, and Dark Force
+
+  S-DD1 C emulator code
+  (c) Copyright 2003 Brad Jorsch with research by
+                     Andreas Naive and John Weidman
+ 
+  S-RTC C emulator code
+  (c) Copyright 2001 John Weidman
+  
+  ST010 C++ emulator code
+  (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
+
+  Super FX x86 assembler emulator code 
+  (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault 
+
+  Super FX C emulator code 
+  (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
+
+
+  SH assembler code partly based on x86 assembler code
+  (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) 
+
+ 
+  Specific ports contains the works of other authors. See headers in
+  individual files.
+ 
+  Snes9x homepage: http://www.snes9x.com
+ 
+  Permission to use, copy, modify and distribute Snes9x in both binary and
+  source form, for non-commercial purposes, is hereby granted without fee,
+  providing that this license information and copyright notice appear with
+  all copies and any derived work.
+ 
+  This software is provided 'as-is', without any express or implied
+  warranty. In no event shall the authors be held liable for any damages
+  arising from the use of this software.
+ 
+  Snes9x is freeware for PERSONAL USE only. Commercial users should
+  seek permission of the copyright holders first. Commercial use includes
+  charging money for Snes9x or software derived from Snes9x.
+ 
+  The copyright holders request that bug fixes and improvements to the code
+  should be forwarded to them so everyone can benefit from the modifications
+  in future versions.
+ 
+  Super NES and Super Nintendo Entertainment System are trademarks of
+  Nintendo Co., Limited and its subsidiary companies.
+*******************************************************************************/
+#include "snes9x.h"
+#include "spctool/dsp.h"
+#include "spctool/spc700.h"
+#include "spctool/soundmod.h"
+#include "apu.h"
+
+bool8 S9xOpenSoundDevice (int, bool8, int);
+
+void S9xSetPlaybackRate (uint32 rate)
+{
+    DOpt		SmpOpt;
+    
+    SmpOpt.Smp8bit=false;
+    SmpOpt.SmpMono=false;
+    SmpOpt.IntType=IntC;
+    SmpOpt.OldBRE=false;
+    SmpOpt.MixRout=1;
+    SetSPUOpt (rate, SmpOpt);
+
+//    so.playback_rate = playback_rate;
+//    so.err_rate = (uint32) (SNES_SCANLINE_TIME * FIXED_POINT / (1.0 / (double) so.playback_rate));
+ }
+
+bool8 S9xSetSoundMute (bool8 mute)
+{
+    return (TRUE);
+}
+
+START_EXTERN_C
+bool8 S9xInitSound (int mode, bool8 stereo, int buffer_size)
+{
+    if (!(mode & 7))
+	return (TRUE);
+
+    S9xSetSoundMute (TRUE);
+    if (!S9xOpenSoundDevice (mode, stereo, buffer_size))
+    {
+	S9xMessage (S9X_ERROR, S9X_SOUND_DEVICE_OPEN_FAILED,
+		    "Sound device open failed");
+	return (FALSE);
+    }
+    return (TRUE);
+}
+
+void TraceSPC (unsigned char *PC, unsigned short YA, unsigned char X,
+	       SPCFlags PS, unsigned char *SP)
+{
+    APURegisters.YA.W = YA;
+    APURegisters.X = X;
+    APURegisters.S = SP - IAPU.RAM;
+    IAPU.PC = PC;
+    IAPU._Carry = PS.C;
+    IAPU._Zero = !PS.Z | (PS.N << 7);
+    IAPU._Overflow = PS.V;
+    APURegisters.P = *(uint8 *) &PS;
+    S9xTraceAPU ();
+}
+
+bool8 S9xInitAPU ()
+{
+    void		*SPCBase;               //Base pointer and aligned pointer to SPC RAM
+    
+    SPCBase=malloc(131072);                  //Allocate memory for SPC RAM
+	memset(SPCBase, 0, 131072);
+
+    IAPU.RAM=(uint8 *) InitSPU(SPCBase);                 //Initialize SPU w/ ptr to SPC RAM (Call only once)
+
+    S9xSetPlaybackRate (22050);
+    ResetSPU(20);                            //Reset SPU with pre-amp level of 30
+//    _SetSPCDbg(TraceSPC);                   //Install debug handler
+   return (TRUE);
+}
+
+void S9xResetAPU ()
+{
+    ResetSPU(20);
+    IAPU.RAM [0xf1] = 0x80;
+    _FixSPC (0xffc0, 0, 0, 0, 0, 0xff);
+//    FixDSP ();
+}
+
+extern "C" void EDSP (uint8 *, int32);
+
+void S9xMixSamplesO (uint8 *buffer, int sample_count, int byte_offset)
+{
+//    _EmuDSP (buffer + byte_offset, sample_count / 2);
+
+    EDSP (buffer + byte_offset, sample_count / 2);
+#if 0
+for (int i = 0; i < 32; i++)
+printf ("%02x,", *(buffer + byte_offset + i));
+printf ("\n");
+#endif
+}
+END_EXTERN_C
+
+void S9xFixSoundAfterSnapshotLoad ()
+{
+}
+
+void S9xSetSoundControl (int)
+{
+}
+
+#ifdef DEBUGGER
+START_EXTERN_C
+void S9xDeinitAPU ()
+{
+}
+
+END_EXTERN_C
+#endif
+