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dsp3.cpp
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dsp3.cpp
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/***********************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
Jerremy Koot (jkoot@snes9x.com)
(c) Copyright 2002 - 2004 Matthew Kendora
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
(c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca),
Kris Bleakley (codeviolation@hotmail.com)
(c) Copyright 2002 - 2010 Brad Jorsch (anomie@users.sourceforge.net),
Nach (n-a-c-h@users.sourceforge.net),
(c) Copyright 2002 - 2011 zones (kasumitokoduck@yahoo.com)
(c) Copyright 2006 - 2007 nitsuja
(c) Copyright 2009 - 2017 BearOso,
OV2
(c) Copyright 2017 qwertymodo
(c) Copyright 2011 - 2017 Hans-Kristian Arntzen,
Daniel De Matteis
(Under no circumstances will commercial rights be given)
BS-X C emulator code
(c) Copyright 2005 - 2006 Dreamer Nom,
zones
C4 x86 assembler and some C emulation code
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
Nach,
zsKnight (zsknight@zsnes.com)
C4 C++ code
(c) Copyright 2003 - 2006 Brad Jorsch,
Nach
DSP-1 emulator code
(c) Copyright 1998 - 2006 _Demo_,
Andreas Naive (andreasnaive@gmail.com),
Gary Henderson,
Ivar (ivar@snes9x.com),
John Weidman,
Kris Bleakley,
Matthew Kendora,
Nach,
neviksti (neviksti@hotmail.com)
DSP-2 emulator code
(c) Copyright 2003 John Weidman,
Kris Bleakley,
Lord Nightmare (lord_nightmare@users.sourceforge.net),
Matthew Kendora,
neviksti
DSP-3 emulator code
(c) Copyright 2003 - 2006 John Weidman,
Kris Bleakley,
Lancer,
z80 gaiden
DSP-4 emulator code
(c) Copyright 2004 - 2006 Dreamer Nom,
John Weidman,
Kris Bleakley,
Nach,
z80 gaiden
OBC1 emulator code
(c) Copyright 2001 - 2004 zsKnight,
pagefault (pagefault@zsnes.com),
Kris Bleakley
Ported from x86 assembler to C by sanmaiwashi
SPC7110 and RTC C++ emulator code used in 1.39-1.51
(c) Copyright 2002 Matthew Kendora with research by
zsKnight,
John Weidman,
Dark Force
SPC7110 and RTC C++ emulator code used in 1.52+
(c) Copyright 2009 byuu,
neviksti
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive,
John Weidman
S-RTC C emulator code
(c) Copyright 2001 - 2006 byuu,
John Weidman
ST010 C++ emulator code
(c) Copyright 2003 Feather,
John Weidman,
Kris Bleakley,
Matthew Kendora
Super FX x86 assembler emulator code
(c) Copyright 1998 - 2003 _Demo_,
pagefault,
zsKnight
Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar,
Gary Henderson,
John Weidman
Sound emulator code used in 1.5-1.51
(c) Copyright 1998 - 2003 Brad Martin
(c) Copyright 1998 - 2006 Charles Bilyue'
Sound emulator code used in 1.52+
(c) Copyright 2004 - 2007 Shay Green (gblargg@gmail.com)
S-SMP emulator code used in 1.54+
(c) Copyright 2016 byuu
SH assembler code partly based on x86 assembler code
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
2xSaI filter
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
HQ2x, HQ3x, HQ4x filters
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
NTSC filter
(c) Copyright 2006 - 2007 Shay Green
GTK+ GUI code
(c) Copyright 2004 - 2017 BearOso
Win32 GUI code
(c) Copyright 2003 - 2006 blip,
funkyass,
Matthew Kendora,
Nach,
nitsuja
(c) Copyright 2009 - 2017 OV2
Mac OS GUI code
(c) Copyright 1998 - 2001 John Stiles
(c) Copyright 2001 - 2011 zones
Libretro port
(c) Copyright 2011 - 2017 Hans-Kristian Arntzen,
Daniel De Matteis
(Under no circumstances will commercial rights be given)
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/or 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 or it's derivatives.
Snes9x is freeware for PERSONAL USE only. Commercial users should
seek permission of the copyright holders first. Commercial use includes,
but is not limited to, charging money for Snes9x or software derived from
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
using Snes9x as a promotion for your commercial product.
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 "memmap.h"
static void (*SetDSP3) (void);
static const uint16 DSP3_DataROM[1024] =
{
0x8000, 0x4000, 0x2000, 0x1000, 0x0800, 0x0400, 0x0200, 0x0100,
0x0080, 0x0040, 0x0020, 0x0010, 0x0008, 0x0004, 0x0002, 0x0001,
0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, 0x0100,
0x0000, 0x000f, 0x0400, 0x0200, 0x0140, 0x0400, 0x0200, 0x0040,
0x007d, 0x007e, 0x007e, 0x007b, 0x007c, 0x007d, 0x007b, 0x007c,
0x0002, 0x0020, 0x0030, 0x0000, 0x000d, 0x0019, 0x0026, 0x0032,
0x003e, 0x004a, 0x0056, 0x0062, 0x006d, 0x0079, 0x0084, 0x008e,
0x0098, 0x00a2, 0x00ac, 0x00b5, 0x00be, 0x00c6, 0x00ce, 0x00d5,
0x00dc, 0x00e2, 0x00e7, 0x00ec, 0x00f1, 0x00f5, 0x00f8, 0x00fb,
0x00fd, 0x00ff, 0x0100, 0x0100, 0x0100, 0x00ff, 0x00fd, 0x00fb,
0x00f8, 0x00f5, 0x00f1, 0x00ed, 0x00e7, 0x00e2, 0x00dc, 0x00d5,
0x00ce, 0x00c6, 0x00be, 0x00b5, 0x00ac, 0x00a2, 0x0099, 0x008e,
0x0084, 0x0079, 0x006e, 0x0062, 0x0056, 0x004a, 0x003e, 0x0032,
0x0026, 0x0019, 0x000d, 0x0000, 0xfff3, 0xffe7, 0xffdb, 0xffce,
0xffc2, 0xffb6, 0xffaa, 0xff9e, 0xff93, 0xff87, 0xff7d, 0xff72,
0xff68, 0xff5e, 0xff54, 0xff4b, 0xff42, 0xff3a, 0xff32, 0xff2b,
0xff25, 0xff1e, 0xff19, 0xff14, 0xff0f, 0xff0b, 0xff08, 0xff05,
0xff03, 0xff01, 0xff00, 0xff00, 0xff00, 0xff01, 0xff03, 0xff05,
0xff08, 0xff0b, 0xff0f, 0xff13, 0xff18, 0xff1e, 0xff24, 0xff2b,
0xff32, 0xff3a, 0xff42, 0xff4b, 0xff54, 0xff5d, 0xff67, 0xff72,
0xff7c, 0xff87, 0xff92, 0xff9e, 0xffa9, 0xffb5, 0xffc2, 0xffce,
0xffda, 0xffe7, 0xfff3, 0x002b, 0x007f, 0x0020, 0x00ff, 0xff00,
0xffbe, 0x0000, 0x0044, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffc1, 0x0001, 0x0002, 0x0045,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffc5, 0x0003, 0x0004, 0x0005, 0x0047, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffca, 0x0006, 0x0007, 0x0008,
0x0009, 0x004a, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffd0, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x004e, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffd7, 0x000f, 0x0010, 0x0011,
0x0012, 0x0013, 0x0014, 0x0053, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffdf, 0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001a, 0x001b,
0x0059, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffe8, 0x001c, 0x001d, 0x001e,
0x001f, 0x0020, 0x0021, 0x0022, 0x0023, 0x0060, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xfff2, 0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a,
0x002b, 0x002c, 0x0068, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xfffd, 0x002d, 0x002e, 0x002f,
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0071,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffc7, 0x0037, 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d,
0x003e, 0x003f, 0x0040, 0x0041, 0x007b, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffd4, 0x0000, 0x0001, 0x0002,
0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a,
0x000b, 0x0044, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffe2, 0x000c, 0x000d, 0x000e, 0x000f, 0x0010, 0x0011, 0x0012,
0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x0018, 0x0050, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xfff1, 0x0019, 0x001a, 0x001b,
0x001c, 0x001d, 0x001e, 0x001f, 0x0020, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0x005d, 0x0000, 0x0000, 0x0000, 0x0000,
0xffcb, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d,
0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
0x006b, 0x0000, 0x0000, 0x0000, 0xffdc, 0x0000, 0x0001, 0x0002,
0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a,
0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 0x0044, 0x0000, 0x0000,
0xffee, 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016,
0x0017, 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e,
0x001f, 0x0020, 0x0054, 0x0000, 0xffee, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b,
0x002c, 0x002d, 0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0x0065,
0xffbe, 0x0000, 0xfeac, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffc1, 0x0001, 0x0002, 0xfead,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffc5, 0x0003, 0x0004, 0x0005, 0xfeaf, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffca, 0x0006, 0x0007, 0x0008,
0x0009, 0xfeb2, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffd0, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0xfeb6, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffd7, 0x000f, 0x0010, 0x0011,
0x0012, 0x0013, 0x0014, 0xfebb, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffdf, 0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001a, 0x001b,
0xfec1, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffe8, 0x001c, 0x001d, 0x001e,
0x001f, 0x0020, 0x0021, 0x0022, 0x0023, 0xfec8, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xfff2, 0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a,
0x002b, 0x002c, 0xfed0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xfffd, 0x002d, 0x002e, 0x002f,
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0xfed9,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffc7, 0x0037, 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d,
0x003e, 0x003f, 0x0040, 0x0041, 0xfee3, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xffd4, 0x0000, 0x0001, 0x0002,
0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a,
0x000b, 0xfeac, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0xffe2, 0x000c, 0x000d, 0x000e, 0x000f, 0x0010, 0x0011, 0x0012,
0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x0018, 0xfeb8, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0xfff1, 0x0019, 0x001a, 0x001b,
0x001c, 0x001d, 0x001e, 0x001f, 0x0020, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0xfec5, 0x0000, 0x0000, 0x0000, 0x0000,
0xffcb, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d,
0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
0xfed3, 0x0000, 0x0000, 0x0000, 0xffdc, 0x0000, 0x0001, 0x0002,
0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a,
0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 0xfeac, 0x0000, 0x0000,
0xffee, 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016,
0x0017, 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e,
0x001f, 0x0020, 0xfebc, 0x0000, 0xffee, 0x0021, 0x0022, 0x0023,
0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b,
0x002c, 0x002d, 0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0xfecd,
0x0154, 0x0218, 0x0110, 0x00b0, 0x00cc, 0x00b0, 0x0088, 0x00b0,
0x0044, 0x00b0, 0x0000, 0x00b0, 0x00fe, 0xff07, 0x0002, 0x00ff,
0x00f8, 0x0007, 0x00fe, 0x00ee, 0x07ff, 0x0200, 0x00ef, 0xf800,
0x0700, 0x00ee, 0xffff, 0xffff, 0xffff, 0x0000, 0x0000, 0x0001,
0x0001, 0x0001, 0x0001, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff,
0xffff, 0x0000, 0x0000, 0x0001, 0x0001, 0x0001, 0x0001, 0x0000,
0x0000, 0xffff, 0xffff, 0x0000, 0xffff, 0x0001, 0x0000, 0x0001,
0x0001, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000,
0xffff, 0x0001, 0x0000, 0x0001, 0x0001, 0x0000, 0x0000, 0xffff,
0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0044, 0x0088, 0x00cc,
0x0110, 0x0154, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff
};
static bool8 DSP3_GetBits (uint8);
//static void DSP3_MemorySize (void);
static void DSP3_TestMemory (void);
static void DSP3_DumpDataROM (void);
static void DSP3_MemoryDump (void);
static void DSP3_Coordinate (void);
static void DSP3_Command (void);
static void DSP3_Decode_Data (void);
static void DSP3_Decode_Tree (void);
static void DSP3_Decode_Symbols (void);
static void DSP3_Decode (void);
static void DSP3_Decode_A (void);
static void DSP3_Convert (void);
static void DSP3_Convert_A (void);
static void DSP3_OP03 (void);
static void DSP3_OP06 (void);
static void DSP3_OP07 (void);
static void DSP3_OP07_A (void);
static void DSP3_OP07_B (void);
static void DSP3_OP0C (void);
//static void DSP3_OP0C_A (void);
static void DSP3_OP10 (void);
static void DSP3_OP1C (void);
static void DSP3_OP1C_A (void);
static void DSP3_OP1C_B (void);
static void DSP3_OP1C_C (void);
static void DSP3_OP1E (void);
static void DSP3_OP1E_A (void);
static void DSP3_OP1E_A1 (void);
static void DSP3_OP1E_A2 (void);
static void DSP3_OP1E_A3 (void);
static void DSP3_OP1E_B (void);
static void DSP3_OP1E_B1 (void);
static void DSP3_OP1E_B2 (void);
static void DSP3_OP1E_C (void);
static void DSP3_OP1E_C1 (void);
static void DSP3_OP1E_C2 (void);
static void DSP3_OP1E_D (int16, int16 *, int16 *);
static void DSP3_OP1E_D1 (int16, int16 *, int16 *);
static void DSP3_OP3E (void);
void DSP3_Reset (void)
{
DSP3.DR = 0x0080;
DSP3.SR = 0x0084;
SetDSP3 = &DSP3_Command;
}
/*
static void DSP3_MemorySize (void)
{
DSP3.DR = 0x0300;
SetDSP3 = &DSP3_Reset;
}
*/
static void DSP3_TestMemory (void)
{
DSP3.DR = 0x0000;
SetDSP3 = &DSP3_Reset;
}
static void DSP3_DumpDataROM (void)
{
DSP3.DR = DSP3_DataROM[DSP3.MemoryIndex++];
if (DSP3.MemoryIndex == 1024)
SetDSP3 = &DSP3_Reset;
}
static void DSP3_MemoryDump (void)
{
DSP3.MemoryIndex = 0;
SetDSP3 = &DSP3_DumpDataROM;
DSP3_DumpDataROM();
}
static void DSP3_OP06 (void)
{
DSP3.WinLo = (uint8) (DSP3.DR);
DSP3.WinHi = (uint8) (DSP3.DR >> 8);
DSP3_Reset();
}
static void DSP3_OP03 (void)
{
int16 Lo = (uint8) (DSP3.DR);
int16 Hi = (uint8) (DSP3.DR >> 8);
int16 Ofs = (DSP3.WinLo * Hi << 1) + (Lo << 1);
DSP3.DR = Ofs >> 1;
SetDSP3 = &DSP3_Reset;
}
static void DSP3_OP07_B (void)
{
int16 Ofs = (DSP3.WinLo * DSP3.AddHi << 1) + (DSP3.AddLo << 1);
DSP3.DR = Ofs >> 1;
SetDSP3 = &DSP3_Reset;
}
static void DSP3_OP07_A (void)
{
int16 Lo = (uint8) (DSP3.DR);
int16 Hi = (uint8) (DSP3.DR >> 8);
if (Lo & 1)
Hi += (DSP3.AddLo & 1);
DSP3.AddLo += Lo;
DSP3.AddHi += Hi;
if (DSP3.AddLo < 0)
DSP3.AddLo += DSP3.WinLo;
else
if (DSP3.AddLo >= DSP3.WinLo)
DSP3.AddLo -= DSP3.WinLo;
if (DSP3.AddHi < 0)
DSP3.AddHi += DSP3.WinHi;
else
if (DSP3.AddHi >= DSP3.WinHi)
DSP3.AddHi -= DSP3.WinHi;
DSP3.DR = DSP3.AddLo | (DSP3.AddHi << 8) | ((DSP3.AddHi >> 8) & 0xff);
SetDSP3 = &DSP3_OP07_B;
}
static void DSP3_OP07 (void)
{
uint32 dataOfs = ((DSP3.DR << 1) + 0x03b2) & 0x03ff;
DSP3.AddHi = DSP3_DataROM[dataOfs];
DSP3.AddLo = DSP3_DataROM[dataOfs + 1];
SetDSP3 = &DSP3_OP07_A;
DSP3.SR = 0x0080;
}
static void DSP3_Coordinate (void)
{
DSP3.Index++;
switch (DSP3.Index)
{
case 3:
if (DSP3.DR == 0xffff)
DSP3_Reset();
break;
case 4:
DSP3.X = DSP3.DR;
break;
case 5:
DSP3.Y = DSP3.DR;
DSP3.DR = 1;
break;
case 6:
DSP3.DR = DSP3.X;
break;
case 7:
DSP3.DR = DSP3.Y;
DSP3.Index = 0;
break;
}
}
static void DSP3_Convert_A (void)
{
if (DSP3.BMIndex < 8)
{
DSP3.Bitmap[DSP3.BMIndex++] = (uint8) (DSP3.DR);
DSP3.Bitmap[DSP3.BMIndex++] = (uint8) (DSP3.DR >> 8);
if (DSP3.BMIndex == 8)
{
for (int i = 0; i < 8; i++)
{
for (int j = 0; j < 8; j++)
{
DSP3.Bitplane[j] <<= 1;
DSP3.Bitplane[j] |= (DSP3.Bitmap[i] >> j) & 1;
}
}
DSP3.BPIndex = 0;
DSP3.Count--;
}
}
if (DSP3.BMIndex == 8)
{
if (DSP3.BPIndex == 8)
{
if (!DSP3.Count)
DSP3_Reset();
DSP3.BMIndex = 0;
}
else
{
DSP3.DR = DSP3.Bitplane[DSP3.BPIndex++];
DSP3.DR |= DSP3.Bitplane[DSP3.BPIndex++] << 8;
}
}
}
static void DSP3_Convert (void)
{
DSP3.Count = DSP3.DR;
DSP3.BMIndex = 0;
SetDSP3 = &DSP3_Convert_A;
}
static bool8 DSP3_GetBits (uint8 Count)
{
if (!DSP3.BitsLeft)
{
DSP3.BitsLeft = Count;
DSP3.ReqBits = 0;
}
do
{
if (!DSP3.BitCount)
{
DSP3.SR = 0xC0;
return (FALSE);
}
DSP3.ReqBits <<= 1;
if (DSP3.ReqData & 0x8000)
DSP3.ReqBits++;
DSP3.ReqData <<= 1;
DSP3.BitCount--;
DSP3.BitsLeft--;
}
while (DSP3.BitsLeft);
return (TRUE);
}
static void DSP3_Decode_Data (void)
{
if (!DSP3.BitCount)
{
if (DSP3.SR & 0x40)
{
DSP3.ReqData = DSP3.DR;
DSP3.BitCount += 16;
}
else
{
DSP3.SR = 0xC0;
return;
}
}
if (DSP3.LZCode == 1)
{
if (!DSP3_GetBits(1))
return;
if (DSP3.ReqBits)
DSP3.LZLength = 12;
else
DSP3.LZLength = 8;
DSP3.LZCode++;
}
if (DSP3.LZCode == 2)
{
if (!DSP3_GetBits(DSP3.LZLength))
return;
DSP3.LZCode = 0;
DSP3.Outwords--;
if (!DSP3.Outwords)
SetDSP3 = &DSP3_Reset;
DSP3.SR = 0x80;
DSP3.DR = DSP3.ReqBits;
return;
}
if (DSP3.BaseCode == 0xffff)
{
if (!DSP3_GetBits(DSP3.BaseLength))
return;
DSP3.BaseCode = DSP3.ReqBits;
}
if (!DSP3_GetBits(DSP3.CodeLengths[DSP3.BaseCode]))
return;
DSP3.Symbol = DSP3.Codes[DSP3.CodeOffsets[DSP3.BaseCode] + DSP3.ReqBits];
DSP3.BaseCode = 0xffff;
if (DSP3.Symbol & 0xff00)
{
DSP3.Symbol += 0x7f02;
DSP3.LZCode++;
}
else
{
DSP3.Outwords--;
if (!DSP3.Outwords)
SetDSP3 = &DSP3_Reset;
}
DSP3.SR = 0x80;
DSP3.DR = DSP3.Symbol;
}
static void DSP3_Decode_Tree (void)
{
if (!DSP3.BitCount)
{
DSP3.ReqData = DSP3.DR;
DSP3.BitCount += 16;
}
if (!DSP3.BaseCodes)
{
DSP3_GetBits(1);
if (DSP3.ReqBits)
{
DSP3.BaseLength = 3;
DSP3.BaseCodes = 8;
}
else
{
DSP3.BaseLength = 2;
DSP3.BaseCodes = 4;
}
}
while (DSP3.BaseCodes)
{
if (!DSP3_GetBits(3))
return;
DSP3.ReqBits++;
DSP3.CodeLengths[DSP3.Index] = (uint8) DSP3.ReqBits;
DSP3.CodeOffsets[DSP3.Index] = DSP3.Symbol;
DSP3.Index++;
DSP3.Symbol += 1 << DSP3.ReqBits;
DSP3.BaseCodes--;
}
DSP3.BaseCode = 0xffff;
DSP3.LZCode = 0;
SetDSP3 = &DSP3_Decode_Data;
if (DSP3.BitCount)
DSP3_Decode_Data();
}
static void DSP3_Decode_Symbols (void)
{
DSP3.ReqData = DSP3.DR;
DSP3.BitCount += 16;
do
{
if (DSP3.BitCommand == 0xffff)
{
if (!DSP3_GetBits(2))
return;
DSP3.BitCommand = DSP3.ReqBits;
}
switch (DSP3.BitCommand)
{
case 0:
if (!DSP3_GetBits(9))
return;
DSP3.Symbol = DSP3.ReqBits;
break;
case 1:
DSP3.Symbol++;
break;
case 2:
if (!DSP3_GetBits(1))
return;
DSP3.Symbol += 2 + DSP3.ReqBits;
break;
case 3:
if (!DSP3_GetBits(4))
return;
DSP3.Symbol += 4 + DSP3.ReqBits;
break;
}
DSP3.BitCommand = 0xffff;
DSP3.Codes[DSP3.Index++] = DSP3.Symbol;
DSP3.Codewords--;
}
while (DSP3.Codewords);
DSP3.Index = 0;
DSP3.Symbol = 0;
DSP3.BaseCodes = 0;
SetDSP3 = &DSP3_Decode_Tree;
if (DSP3.BitCount)
DSP3_Decode_Tree();
}
static void DSP3_Decode_A (void)
{
DSP3.Outwords = DSP3.DR;
SetDSP3 = &DSP3_Decode_Symbols;
DSP3.BitCount = 0;
DSP3.BitsLeft = 0;
DSP3.Symbol = 0;
DSP3.Index = 0;
DSP3.BitCommand = 0xffff;
DSP3.SR = 0xC0;
}
static void DSP3_Decode (void)
{
DSP3.Codewords = DSP3.DR;
SetDSP3 = &DSP3_Decode_A;
}
// Opcodes 1E/3E bit-perfect to 'dsp3-intro' log
// src: adapted from SD Gundam X/G-Next
static void DSP3_OP3E (void)
{
DSP3. op3e_x = (uint8) (DSP3.DR & 0x00ff);
DSP3. op3e_y = (uint8) ((DSP3.DR & 0xff00) >> 8);
DSP3_OP03();
DSP3.op1e_terrain[DSP3.DR] = 0x00;
DSP3.op1e_cost[DSP3.DR] = 0xff;
DSP3.op1e_weight[DSP3.DR] = 0;
DSP3.op1e_max_search_radius = 0;
DSP3.op1e_max_path_radius = 0;
}
static void DSP3_OP1E (void)
{
DSP3.op1e_min_radius = (uint8) (DSP3.DR & 0x00ff);
DSP3.op1e_max_radius = (uint8) ((DSP3.DR & 0xff00) >> 8);
if (DSP3.op1e_min_radius == 0)
DSP3.op1e_min_radius++;
if (DSP3.op1e_max_search_radius >= DSP3.op1e_min_radius)
DSP3.op1e_min_radius = DSP3.op1e_max_search_radius + 1;
if (DSP3.op1e_max_radius > DSP3.op1e_max_search_radius)
DSP3.op1e_max_search_radius = DSP3.op1e_max_radius;
DSP3.op1e_lcv_radius = DSP3.op1e_min_radius;
DSP3.op1e_lcv_steps = DSP3.op1e_min_radius;
DSP3.op1e_lcv_turns = 6;
DSP3.op1e_turn = 0;
DSP3.op1e_x = DSP3. op3e_x;
DSP3.op1e_y = DSP3. op3e_y;
for (int lcv = 0; lcv < DSP3.op1e_min_radius; lcv++)
DSP3_OP1E_D(DSP3.op1e_turn, &DSP3.op1e_x, &DSP3.op1e_y);
DSP3_OP1E_A();
}
static void DSP3_OP1E_A (void)
{
if (DSP3.op1e_lcv_steps == 0)
{
DSP3.op1e_lcv_radius++;
DSP3.op1e_lcv_steps = DSP3.op1e_lcv_radius;
DSP3.op1e_x = DSP3. op3e_x;
DSP3.op1e_y = DSP3. op3e_y;
for (int lcv = 0; lcv < DSP3.op1e_lcv_radius; lcv++)
DSP3_OP1E_D(DSP3.op1e_turn, &DSP3.op1e_x, &DSP3.op1e_y);
}
if (DSP3.op1e_lcv_radius > DSP3.op1e_max_radius)
{
DSP3.op1e_turn++;
DSP3.op1e_lcv_turns--;
DSP3.op1e_lcv_radius = DSP3.op1e_min_radius;
DSP3.op1e_lcv_steps = DSP3.op1e_min_radius;
DSP3.op1e_x = DSP3. op3e_x;
DSP3.op1e_y = DSP3. op3e_y;
for (int lcv = 0; lcv < DSP3.op1e_min_radius; lcv++)
DSP3_OP1E_D(DSP3.op1e_turn, &DSP3.op1e_x, &DSP3.op1e_y);
}
if (DSP3.op1e_lcv_turns == 0)
{
DSP3.DR = 0xffff;
DSP3.SR = 0x0080;
SetDSP3 = &DSP3_OP1E_B;
return;
}
DSP3.DR = (uint8) (DSP3.op1e_x) | ((uint8) (DSP3.op1e_y) << 8);
DSP3_OP03();
DSP3.op1e_cell = DSP3.DR;
DSP3.SR = 0x0080;
SetDSP3 = &DSP3_OP1E_A1;
}
static void DSP3_OP1E_A1 (void)
{
DSP3.SR = 0x0084;
SetDSP3 = &DSP3_OP1E_A2;
}
static void DSP3_OP1E_A2 (void)
{
DSP3.op1e_terrain[DSP3.op1e_cell] = (uint8) (DSP3.DR & 0x00ff);
DSP3.SR = 0x0084;
SetDSP3 = &DSP3_OP1E_A3;
}
static void DSP3_OP1E_A3 (void)
{
DSP3.op1e_cost[DSP3.op1e_cell] = (uint8) (DSP3.DR & 0x00ff);
if (DSP3.op1e_lcv_radius == 1)
{
if (DSP3.op1e_terrain[DSP3.op1e_cell] & 1)
DSP3.op1e_weight[DSP3.op1e_cell] = 0xff;
else
DSP3.op1e_weight[DSP3.op1e_cell] = DSP3.op1e_cost[DSP3.op1e_cell];
}
else
DSP3.op1e_weight[DSP3.op1e_cell] = 0xff;
DSP3_OP1E_D((int16) (DSP3.op1e_turn + 2), &DSP3.op1e_x, &DSP3.op1e_y);
DSP3.op1e_lcv_steps--;
DSP3.SR = 0x0080;
DSP3_OP1E_A();
}
static void DSP3_OP1E_B (void)
{
DSP3.op1e_x = DSP3. op3e_x;
DSP3.op1e_y = DSP3. op3e_y;
DSP3.op1e_lcv_radius = 1;
DSP3.op1e_search = 0;
DSP3_OP1E_B1();
SetDSP3 = &DSP3_OP1E_C;
}
static void DSP3_OP1E_B1 (void)
{
while (DSP3.op1e_lcv_radius < DSP3.op1e_max_radius)
{
DSP3.op1e_y--;
DSP3.op1e_lcv_turns = 6;
DSP3.op1e_turn = 5;
while (DSP3.op1e_lcv_turns)
{
DSP3.op1e_lcv_steps = DSP3.op1e_lcv_radius;
while (DSP3.op1e_lcv_steps)
{
DSP3_OP1E_D1(DSP3.op1e_turn, &DSP3.op1e_x, &DSP3.op1e_y);
if (0 <= DSP3.op1e_y && DSP3.op1e_y < DSP3.WinHi && 0 <= DSP3.op1e_x && DSP3.op1e_x < DSP3.WinLo)
{
DSP3.DR = (uint8) (DSP3.op1e_x) | ((uint8) (DSP3.op1e_y) << 8);
DSP3_OP03();
DSP3.op1e_cell = DSP3.DR;
if (DSP3.op1e_cost[DSP3.op1e_cell] < 0x80 && DSP3.op1e_terrain[DSP3.op1e_cell] < 0x40)
DSP3_OP1E_B2(); // end cell perimeter
}
DSP3.op1e_lcv_steps--;
} // end search line
DSP3.op1e_turn--;
if (DSP3.op1e_turn == 0)
DSP3.op1e_turn = 6;
DSP3.op1e_lcv_turns--;
} // end circle search
DSP3.op1e_lcv_radius++;
} // end radius search
}
static void DSP3_OP1E_B2 (void)
{
int16 cell;
int16 path;
int16 x, y;
int16 lcv_turns;
path = 0xff;
lcv_turns = 6;
while (lcv_turns)
{
x = DSP3.op1e_x;
y = DSP3.op1e_y;
DSP3_OP1E_D1(lcv_turns, &x, &y);
DSP3.DR = (uint8) (x) | ((uint8) (y) << 8);
DSP3_OP03();
cell = DSP3.DR;
if (0 <= y && y < DSP3.WinHi && 0 <= x && x < DSP3.WinLo)
{
if (DSP3.op1e_terrain[cell] < 0x80 || DSP3.op1e_weight[cell] == 0)
{
if (DSP3.op1e_weight[cell] < path)
path = DSP3.op1e_weight[cell];
}
} // end step travel
lcv_turns--;
} // end while turns
if (path != 0xff)
DSP3.op1e_weight[DSP3.op1e_cell] = path + DSP3.op1e_cost[DSP3.op1e_cell];
}
static void DSP3_OP1E_C (void)
{
DSP3.op1e_min_radius = (uint8) (DSP3.DR & 0x00ff);
DSP3.op1e_max_radius = (uint8) ((DSP3.DR & 0xff00) >> 8);
if (DSP3.op1e_min_radius == 0)