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dsp1.cpp
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dsp1.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),
zones (kasumitokoduck@yahoo.com)
(c) Copyright 2006 - 2007 nitsuja
(c) Copyright 2009 - 2010 BearOso,
OV2
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)
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 - 2010 BearOso
Win32 GUI code
(c) Copyright 2003 - 2006 blip,
funkyass,
Matthew Kendora,
Nach,
nitsuja
(c) Copyright 2009 - 2010 OV2
Mac OS GUI code
(c) Copyright 1998 - 2001 John Stiles
(c) Copyright 2001 - 2010 zones
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.
***********************************************************************************/
/*
Copyright (C) 1997-2006 ZSNES Team ( zsKnight, _Demo_, pagefault, Nach )
http://www.zsnes.com
http://sourceforge.net/projects/zsnes
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "snes9x.h"
#include "memmap.h"
#ifdef DEBUGGER
//#define DebugDSP1
#endif
#ifdef DebugDSP1
#include <stdarg.h>
static FILE *LogFile = NULL;
#endif
static const uint16 DSP1ROM[1024] =
{
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020,
0x0040, 0x0080, 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000,
0x4000, 0x7fff, 0x4000, 0x2000, 0x1000, 0x0800, 0x0400, 0x0200,
0x0100, 0x0080, 0x0040, 0x0020, 0x0001, 0x0008, 0x0004, 0x0002,
0x0001, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x8000, 0xffe5, 0x0100, 0x7fff, 0x7f02, 0x7e08,
0x7d12, 0x7c1f, 0x7b30, 0x7a45, 0x795d, 0x7878, 0x7797, 0x76ba,
0x75df, 0x7507, 0x7433, 0x7361, 0x7293, 0x71c7, 0x70fe, 0x7038,
0x6f75, 0x6eb4, 0x6df6, 0x6d3a, 0x6c81, 0x6bca, 0x6b16, 0x6a64,
0x69b4, 0x6907, 0x685b, 0x67b2, 0x670b, 0x6666, 0x65c4, 0x6523,
0x6484, 0x63e7, 0x634c, 0x62b3, 0x621c, 0x6186, 0x60f2, 0x6060,
0x5fd0, 0x5f41, 0x5eb5, 0x5e29, 0x5d9f, 0x5d17, 0x5c91, 0x5c0c,
0x5b88, 0x5b06, 0x5a85, 0x5a06, 0x5988, 0x590b, 0x5890, 0x5816,
0x579d, 0x5726, 0x56b0, 0x563b, 0x55c8, 0x5555, 0x54e4, 0x5474,
0x5405, 0x5398, 0x532b, 0x52bf, 0x5255, 0x51ec, 0x5183, 0x511c,
0x50b6, 0x5050, 0x4fec, 0x4f89, 0x4f26, 0x4ec5, 0x4e64, 0x4e05,
0x4da6, 0x4d48, 0x4cec, 0x4c90, 0x4c34, 0x4bda, 0x4b81, 0x4b28,
0x4ad0, 0x4a79, 0x4a23, 0x49cd, 0x4979, 0x4925, 0x48d1, 0x487f,
0x482d, 0x47dc, 0x478c, 0x473c, 0x46ed, 0x469f, 0x4651, 0x4604,
0x45b8, 0x456c, 0x4521, 0x44d7, 0x448d, 0x4444, 0x43fc, 0x43b4,
0x436d, 0x4326, 0x42e0, 0x429a, 0x4255, 0x4211, 0x41cd, 0x4189,
0x4146, 0x4104, 0x40c2, 0x4081, 0x4040, 0x3fff, 0x41f7, 0x43e1,
0x45bd, 0x478d, 0x4951, 0x4b0b, 0x4cbb, 0x4e61, 0x4fff, 0x5194,
0x5322, 0x54a9, 0x5628, 0x57a2, 0x5914, 0x5a81, 0x5be9, 0x5d4a,
0x5ea7, 0x5fff, 0x6152, 0x62a0, 0x63ea, 0x6530, 0x6672, 0x67b0,
0x68ea, 0x6a20, 0x6b53, 0x6c83, 0x6daf, 0x6ed9, 0x6fff, 0x7122,
0x7242, 0x735f, 0x747a, 0x7592, 0x76a7, 0x77ba, 0x78cb, 0x79d9,
0x7ae5, 0x7bee, 0x7cf5, 0x7dfa, 0x7efe, 0x7fff, 0x0000, 0x0324,
0x0647, 0x096a, 0x0c8b, 0x0fab, 0x12c8, 0x15e2, 0x18f8, 0x1c0b,
0x1f19, 0x2223, 0x2528, 0x2826, 0x2b1f, 0x2e11, 0x30fb, 0x33de,
0x36ba, 0x398c, 0x3c56, 0x3f17, 0x41ce, 0x447a, 0x471c, 0x49b4,
0x4c3f, 0x4ebf, 0x5133, 0x539b, 0x55f5, 0x5842, 0x5a82, 0x5cb4,
0x5ed7, 0x60ec, 0x62f2, 0x64e8, 0x66cf, 0x68a6, 0x6a6d, 0x6c24,
0x6dca, 0x6f5f, 0x70e2, 0x7255, 0x73b5, 0x7504, 0x7641, 0x776c,
0x7884, 0x798a, 0x7a7d, 0x7b5d, 0x7c29, 0x7ce3, 0x7d8a, 0x7e1d,
0x7e9d, 0x7f09, 0x7f62, 0x7fa7, 0x7fd8, 0x7ff6, 0x7fff, 0x7ff6,
0x7fd8, 0x7fa7, 0x7f62, 0x7f09, 0x7e9d, 0x7e1d, 0x7d8a, 0x7ce3,
0x7c29, 0x7b5d, 0x7a7d, 0x798a, 0x7884, 0x776c, 0x7641, 0x7504,
0x73b5, 0x7255, 0x70e2, 0x6f5f, 0x6dca, 0x6c24, 0x6a6d, 0x68a6,
0x66cf, 0x64e8, 0x62f2, 0x60ec, 0x5ed7, 0x5cb4, 0x5a82, 0x5842,
0x55f5, 0x539b, 0x5133, 0x4ebf, 0x4c3f, 0x49b4, 0x471c, 0x447a,
0x41ce, 0x3f17, 0x3c56, 0x398c, 0x36ba, 0x33de, 0x30fb, 0x2e11,
0x2b1f, 0x2826, 0x2528, 0x2223, 0x1f19, 0x1c0b, 0x18f8, 0x15e2,
0x12c8, 0x0fab, 0x0c8b, 0x096a, 0x0647, 0x0324, 0x7fff, 0x7ff6,
0x7fd8, 0x7fa7, 0x7f62, 0x7f09, 0x7e9d, 0x7e1d, 0x7d8a, 0x7ce3,
0x7c29, 0x7b5d, 0x7a7d, 0x798a, 0x7884, 0x776c, 0x7641, 0x7504,
0x73b5, 0x7255, 0x70e2, 0x6f5f, 0x6dca, 0x6c24, 0x6a6d, 0x68a6,
0x66cf, 0x64e8, 0x62f2, 0x60ec, 0x5ed7, 0x5cb4, 0x5a82, 0x5842,
0x55f5, 0x539b, 0x5133, 0x4ebf, 0x4c3f, 0x49b4, 0x471c, 0x447a,
0x41ce, 0x3f17, 0x3c56, 0x398c, 0x36ba, 0x33de, 0x30fb, 0x2e11,
0x2b1f, 0x2826, 0x2528, 0x2223, 0x1f19, 0x1c0b, 0x18f8, 0x15e2,
0x12c8, 0x0fab, 0x0c8b, 0x096a, 0x0647, 0x0324, 0x0000, 0xfcdc,
0xf9b9, 0xf696, 0xf375, 0xf055, 0xed38, 0xea1e, 0xe708, 0xe3f5,
0xe0e7, 0xdddd, 0xdad8, 0xd7da, 0xd4e1, 0xd1ef, 0xcf05, 0xcc22,
0xc946, 0xc674, 0xc3aa, 0xc0e9, 0xbe32, 0xbb86, 0xb8e4, 0xb64c,
0xb3c1, 0xb141, 0xaecd, 0xac65, 0xaa0b, 0xa7be, 0xa57e, 0xa34c,
0xa129, 0x9f14, 0x9d0e, 0x9b18, 0x9931, 0x975a, 0x9593, 0x93dc,
0x9236, 0x90a1, 0x8f1e, 0x8dab, 0x8c4b, 0x8afc, 0x89bf, 0x8894,
0x877c, 0x8676, 0x8583, 0x84a3, 0x83d7, 0x831d, 0x8276, 0x81e3,
0x8163, 0x80f7, 0x809e, 0x8059, 0x8028, 0x800a, 0x6488, 0x0080,
0x03ff, 0x0116, 0x0002, 0x0080, 0x4000, 0x3fd7, 0x3faf, 0x3f86,
0x3f5d, 0x3f34, 0x3f0c, 0x3ee3, 0x3eba, 0x3e91, 0x3e68, 0x3e40,
0x3e17, 0x3dee, 0x3dc5, 0x3d9c, 0x3d74, 0x3d4b, 0x3d22, 0x3cf9,
0x3cd0, 0x3ca7, 0x3c7f, 0x3c56, 0x3c2d, 0x3c04, 0x3bdb, 0x3bb2,
0x3b89, 0x3b60, 0x3b37, 0x3b0e, 0x3ae5, 0x3abc, 0x3a93, 0x3a69,
0x3a40, 0x3a17, 0x39ee, 0x39c5, 0x399c, 0x3972, 0x3949, 0x3920,
0x38f6, 0x38cd, 0x38a4, 0x387a, 0x3851, 0x3827, 0x37fe, 0x37d4,
0x37aa, 0x3781, 0x3757, 0x372d, 0x3704, 0x36da, 0x36b0, 0x3686,
0x365c, 0x3632, 0x3609, 0x35df, 0x35b4, 0x358a, 0x3560, 0x3536,
0x350c, 0x34e1, 0x34b7, 0x348d, 0x3462, 0x3438, 0x340d, 0x33e3,
0x33b8, 0x338d, 0x3363, 0x3338, 0x330d, 0x32e2, 0x32b7, 0x328c,
0x3261, 0x3236, 0x320b, 0x31df, 0x31b4, 0x3188, 0x315d, 0x3131,
0x3106, 0x30da, 0x30ae, 0x3083, 0x3057, 0x302b, 0x2fff, 0x2fd2,
0x2fa6, 0x2f7a, 0x2f4d, 0x2f21, 0x2ef4, 0x2ec8, 0x2e9b, 0x2e6e,
0x2e41, 0x2e14, 0x2de7, 0x2dba, 0x2d8d, 0x2d60, 0x2d32, 0x2d05,
0x2cd7, 0x2ca9, 0x2c7b, 0x2c4d, 0x2c1f, 0x2bf1, 0x2bc3, 0x2b94,
0x2b66, 0x2b37, 0x2b09, 0x2ada, 0x2aab, 0x2a7c, 0x2a4c, 0x2a1d,
0x29ed, 0x29be, 0x298e, 0x295e, 0x292e, 0x28fe, 0x28ce, 0x289d,
0x286d, 0x283c, 0x280b, 0x27da, 0x27a9, 0x2777, 0x2746, 0x2714,
0x26e2, 0x26b0, 0x267e, 0x264c, 0x2619, 0x25e7, 0x25b4, 0x2581,
0x254d, 0x251a, 0x24e6, 0x24b2, 0x247e, 0x244a, 0x2415, 0x23e1,
0x23ac, 0x2376, 0x2341, 0x230b, 0x22d6, 0x229f, 0x2269, 0x2232,
0x21fc, 0x21c4, 0x218d, 0x2155, 0x211d, 0x20e5, 0x20ad, 0x2074,
0x203b, 0x2001, 0x1fc7, 0x1f8d, 0x1f53, 0x1f18, 0x1edd, 0x1ea1,
0x1e66, 0x1e29, 0x1ded, 0x1db0, 0x1d72, 0x1d35, 0x1cf6, 0x1cb8,
0x1c79, 0x1c39, 0x1bf9, 0x1bb8, 0x1b77, 0x1b36, 0x1af4, 0x1ab1,
0x1a6e, 0x1a2a, 0x19e6, 0x19a1, 0x195c, 0x1915, 0x18ce, 0x1887,
0x183f, 0x17f5, 0x17ac, 0x1761, 0x1715, 0x16c9, 0x167c, 0x162e,
0x15df, 0x158e, 0x153d, 0x14eb, 0x1497, 0x1442, 0x13ec, 0x1395,
0x133c, 0x12e2, 0x1286, 0x1228, 0x11c9, 0x1167, 0x1104, 0x109e,
0x1036, 0x0fcc, 0x0f5f, 0x0eef, 0x0e7b, 0x0e04, 0x0d89, 0x0d0a,
0x0c86, 0x0bfd, 0x0b6d, 0x0ad6, 0x0a36, 0x098d, 0x08d7, 0x0811,
0x0736, 0x063e, 0x0519, 0x039a, 0x0000, 0x7fff, 0x0100, 0x0080,
0x021d, 0x00c8, 0x00ce, 0x0048, 0x0a26, 0x277a, 0x00ce, 0x6488,
0x14ac, 0x0001, 0x00f9, 0x00fc, 0x00ff, 0x00fc, 0x00f9, 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, 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, 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, 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, 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 const int16 DSP1_MulTable[256] =
{
0x0000, 0x0003, 0x0006, 0x0009, 0x000c, 0x000f, 0x0012, 0x0015,
0x0019, 0x001c, 0x001f, 0x0022, 0x0025, 0x0028, 0x002b, 0x002f,
0x0032, 0x0035, 0x0038, 0x003b, 0x003e, 0x0041, 0x0045, 0x0048,
0x004b, 0x004e, 0x0051, 0x0054, 0x0057, 0x005b, 0x005e, 0x0061,
0x0064, 0x0067, 0x006a, 0x006d, 0x0071, 0x0074, 0x0077, 0x007a,
0x007d, 0x0080, 0x0083, 0x0087, 0x008a, 0x008d, 0x0090, 0x0093,
0x0096, 0x0099, 0x009d, 0x00a0, 0x00a3, 0x00a6, 0x00a9, 0x00ac,
0x00af, 0x00b3, 0x00b6, 0x00b9, 0x00bc, 0x00bf, 0x00c2, 0x00c5,
0x00c9, 0x00cc, 0x00cf, 0x00d2, 0x00d5, 0x00d8, 0x00db, 0x00df,
0x00e2, 0x00e5, 0x00e8, 0x00eb, 0x00ee, 0x00f1, 0x00f5, 0x00f8,
0x00fb, 0x00fe, 0x0101, 0x0104, 0x0107, 0x010b, 0x010e, 0x0111,
0x0114, 0x0117, 0x011a, 0x011d, 0x0121, 0x0124, 0x0127, 0x012a,
0x012d, 0x0130, 0x0133, 0x0137, 0x013a, 0x013d, 0x0140, 0x0143,
0x0146, 0x0149, 0x014d, 0x0150, 0x0153, 0x0156, 0x0159, 0x015c,
0x015f, 0x0163, 0x0166, 0x0169, 0x016c, 0x016f, 0x0172, 0x0175,
0x0178, 0x017c, 0x017f, 0x0182, 0x0185, 0x0188, 0x018b, 0x018e,
0x0192, 0x0195, 0x0198, 0x019b, 0x019e, 0x01a1, 0x01a4, 0x01a8,
0x01ab, 0x01ae, 0x01b1, 0x01b4, 0x01b7, 0x01ba, 0x01be, 0x01c1,
0x01c4, 0x01c7, 0x01ca, 0x01cd, 0x01d0, 0x01d4, 0x01d7, 0x01da,
0x01dd, 0x01e0, 0x01e3, 0x01e6, 0x01ea, 0x01ed, 0x01f0, 0x01f3,
0x01f6, 0x01f9, 0x01fc, 0x0200, 0x0203, 0x0206, 0x0209, 0x020c,
0x020f, 0x0212, 0x0216, 0x0219, 0x021c, 0x021f, 0x0222, 0x0225,
0x0228, 0x022c, 0x022f, 0x0232, 0x0235, 0x0238, 0x023b, 0x023e,
0x0242, 0x0245, 0x0248, 0x024b, 0x024e, 0x0251, 0x0254, 0x0258,
0x025b, 0x025e, 0x0261, 0x0264, 0x0267, 0x026a, 0x026e, 0x0271,
0x0274, 0x0277, 0x027a, 0x027d, 0x0280, 0x0284, 0x0287, 0x028a,
0x028d, 0x0290, 0x0293, 0x0296, 0x029a, 0x029d, 0x02a0, 0x02a3,
0x02a6, 0x02a9, 0x02ac, 0x02b0, 0x02b3, 0x02b6, 0x02b9, 0x02bc,
0x02bf, 0x02c2, 0x02c6, 0x02c9, 0x02cc, 0x02cf, 0x02d2, 0x02d5,
0x02d8, 0x02db, 0x02df, 0x02e2, 0x02e5, 0x02e8, 0x02eb, 0x02ee,
0x02f1, 0x02f5, 0x02f8, 0x02fb, 0x02fe, 0x0301, 0x0304, 0x0307,
0x030b, 0x030e, 0x0311, 0x0314, 0x0317, 0x031a, 0x031d, 0x0321
};
static const int16 DSP1_SinTable[256] =
{
0x0000, 0x0324, 0x0647, 0x096a, 0x0c8b, 0x0fab, 0x12c8, 0x15e2,
0x18f8, 0x1c0b, 0x1f19, 0x2223, 0x2528, 0x2826, 0x2b1f, 0x2e11,
0x30fb, 0x33de, 0x36ba, 0x398c, 0x3c56, 0x3f17, 0x41ce, 0x447a,
0x471c, 0x49b4, 0x4c3f, 0x4ebf, 0x5133, 0x539b, 0x55f5, 0x5842,
0x5a82, 0x5cb4, 0x5ed7, 0x60ec, 0x62f2, 0x64e8, 0x66cf, 0x68a6,
0x6a6d, 0x6c24, 0x6dca, 0x6f5f, 0x70e2, 0x7255, 0x73b5, 0x7504,
0x7641, 0x776c, 0x7884, 0x798a, 0x7a7d, 0x7b5d, 0x7c29, 0x7ce3,
0x7d8a, 0x7e1d, 0x7e9d, 0x7f09, 0x7f62, 0x7fa7, 0x7fd8, 0x7ff6,
0x7fff, 0x7ff6, 0x7fd8, 0x7fa7, 0x7f62, 0x7f09, 0x7e9d, 0x7e1d,
0x7d8a, 0x7ce3, 0x7c29, 0x7b5d, 0x7a7d, 0x798a, 0x7884, 0x776c,
0x7641, 0x7504, 0x73b5, 0x7255, 0x70e2, 0x6f5f, 0x6dca, 0x6c24,
0x6a6d, 0x68a6, 0x66cf, 0x64e8, 0x62f2, 0x60ec, 0x5ed7, 0x5cb4,
0x5a82, 0x5842, 0x55f5, 0x539b, 0x5133, 0x4ebf, 0x4c3f, 0x49b4,
0x471c, 0x447a, 0x41ce, 0x3f17, 0x3c56, 0x398c, 0x36ba, 0x33de,
0x30fb, 0x2e11, 0x2b1f, 0x2826, 0x2528, 0x2223, 0x1f19, 0x1c0b,
0x18f8, 0x15e2, 0x12c8, 0x0fab, 0x0c8b, 0x096a, 0x0647, 0x0324,
-0x0000, -0x0324, -0x0647, -0x096a, -0x0c8b, -0x0fab, -0x12c8, -0x15e2,
-0x18f8, -0x1c0b, -0x1f19, -0x2223, -0x2528, -0x2826, -0x2b1f, -0x2e11,
-0x30fb, -0x33de, -0x36ba, -0x398c, -0x3c56, -0x3f17, -0x41ce, -0x447a,
-0x471c, -0x49b4, -0x4c3f, -0x4ebf, -0x5133, -0x539b, -0x55f5, -0x5842,
-0x5a82, -0x5cb4, -0x5ed7, -0x60ec, -0x62f2, -0x64e8, -0x66cf, -0x68a6,
-0x6a6d, -0x6c24, -0x6dca, -0x6f5f, -0x70e2, -0x7255, -0x73b5, -0x7504,
-0x7641, -0x776c, -0x7884, -0x798a, -0x7a7d, -0x7b5d, -0x7c29, -0x7ce3,
-0x7d8a, -0x7e1d, -0x7e9d, -0x7f09, -0x7f62, -0x7fa7, -0x7fd8, -0x7ff6,
-0x7fff, -0x7ff6, -0x7fd8, -0x7fa7, -0x7f62, -0x7f09, -0x7e9d, -0x7e1d,
-0x7d8a, -0x7ce3, -0x7c29, -0x7b5d, -0x7a7d, -0x798a, -0x7884, -0x776c,
-0x7641, -0x7504, -0x73b5, -0x7255, -0x70e2, -0x6f5f, -0x6dca, -0x6c24,
-0x6a6d, -0x68a6, -0x66cf, -0x64e8, -0x62f2, -0x60ec, -0x5ed7, -0x5cb4,
-0x5a82, -0x5842, -0x55f5, -0x539b, -0x5133, -0x4ebf, -0x4c3f, -0x49b4,
-0x471c, -0x447a, -0x41ce, -0x3f17, -0x3c56, -0x398c, -0x36ba, -0x33de,
-0x30fb, -0x2e11, -0x2b1f, -0x2826, -0x2528, -0x2223, -0x1f19, -0x1c0b,
-0x18f8, -0x15e2, -0x12c8, -0x0fab, -0x0c8b, -0x096a, -0x0647, -0x0324
};
#ifdef DebugDSP1
static void Log_Message (const char *Message, ...)
{
char Msg[400];
va_list ap;
size_t ignore;
va_start(ap, Message);
vsprintf(Msg, Message, ap);
va_end(ap);
strcat(Msg, "\r\n\0");
ignore = fwrite(Msg, strlen(Msg), 1, LogFile);
fflush(LogFile);
}
static void Start_Log (void)
{
LogFile = fopen("dsp1emu.log", "wb");
}
static void Stop_Log (void)
{
if (LogFile)
{
fclose(LogFile);
LogFile = NULL;
}
}
#endif
static void DSP1_Op00 (void)
{
DSP1.Op00Result = DSP1.Op00Multiplicand * DSP1.Op00Multiplier >> 15;
#ifdef DebugDSP1
Log_Message("OP00 MULT %d*%d/32768=%d", DSP1.Op00Multiplicand, DSP1.Op00Multiplier, DSP1.Op00Result);
#endif
}
static void DSP1_Op20 (void)
{
DSP1.Op20Result = DSP1.Op20Multiplicand * DSP1.Op20Multiplier >> 15;
DSP1.Op20Result++;
#ifdef DebugDSP1
Log_Message("OP20 MULT %d*%d/32768=%d", DSP1.Op20Multiplicand, DSP1.Op20Multiplier, DSP1.Op20Result);
#endif
}
static void DSP1_Inverse (int16 Coefficient, int16 Exponent, int16 *iCoefficient, int16 *iExponent)
{
// Step One: Division by Zero
if (Coefficient == 0x0000)
{
*iCoefficient = 0x7fff;
*iExponent = 0x002f;
}
else
{
int16 Sign = 1;
// Step Two: Remove Sign
if (Coefficient < 0)
{
if (Coefficient < -32767)
Coefficient = -32767;
Coefficient = -Coefficient;
Sign = -1;
}
// Step Three: Normalize
while (Coefficient < 0x4000)
{
Coefficient <<= 1;
Exponent--;
}
// Step Four: Special Case
if (Coefficient == 0x4000)
{
if (Sign == 1)
*iCoefficient = 0x7fff;
else
{
*iCoefficient = -0x4000;
Exponent--;
}
}
else
{
// Step Five: Initial Guess
int16 i = DSP1ROM[((Coefficient - 0x4000) >> 7) + 0x0065];
// Step Six: Iterate "estimated" Newton's Method
i = (i + (-i * (Coefficient * i >> 15) >> 15)) << 1;
i = (i + (-i * (Coefficient * i >> 15) >> 15)) << 1;
*iCoefficient = i * Sign;
}
*iExponent = 1 - Exponent;
}
}
static void DSP1_Op10 (void)
{
DSP1_Inverse(DSP1.Op10Coefficient, DSP1.Op10Exponent, &DSP1.Op10CoefficientR, &DSP1.Op10ExponentR);
#ifdef DebugDSP1
Log_Message("OP10 INV %d*2^%d = %d*2^%d", DSP1.Op10Coefficient, DSP1.Op10Exponent, DSP1.Op10CoefficientR, DSP1.Op10ExponentR);
#endif
}
static int16 DSP1_Sin (int16 Angle)
{
int32 S;
if (Angle < 0)
{
if (Angle == -32768)
return (0);
return (-DSP1_Sin(-Angle));
}
S = DSP1_SinTable[Angle >> 8] + (DSP1_MulTable[Angle & 0xff] * DSP1_SinTable[0x40 + (Angle >> 8)] >> 15);
if (S > 32767)
S = 32767;
return ((int16) S);
}
static int16 DSP1_Cos (int16 Angle)
{
int32 S;
if (Angle < 0)
{
if (Angle == -32768)
return (-32768);
Angle = -Angle;
}
S = DSP1_SinTable[0x40 + (Angle >> 8)] - (DSP1_MulTable[Angle & 0xff] * DSP1_SinTable[Angle >> 8] >> 15);
if (S < -32768)
S = -32767;
return ((int16) S);
}
static void DSP1_Normalize (int16 m, int16 *Coefficient, int16 *Exponent)
{
int16 i = 0x4000;
int16 e = 0;
if (m < 0)
{
while ((m & i) && i)
{
i >>= 1;
e++;
}
}
else
{
while (!(m & i) && i)
{
i >>= 1;
e++;
}
}
if (e > 0)
*Coefficient = m * DSP1ROM[0x21 + e] << 1;
else
*Coefficient = m;
*Exponent -= e;
}
static void DSP1_NormalizeDouble (int32 Product, int16 *Coefficient, int16 *Exponent)
{
int16 n = Product & 0x7fff;
int16 m = Product >> 15;
int16 i = 0x4000;
int16 e = 0;
if (m < 0)
{
while ((m & i) && i)
{
i >>= 1;
e++;
}
}
else
{
while (!(m & i) && i)
{
i >>= 1;
e++;
}
}
if (e > 0)
{
*Coefficient = m * DSP1ROM[0x0021 + e] << 1;
if (e < 15)
*Coefficient += n * DSP1ROM[0x0040 - e] >> 15;
else
{
i = 0x4000;
if (m < 0)
{
while ((n & i) && i)
{
i >>= 1;
e++;
}
}
else
{
while (!(n & i) && i)
{
i >>= 1;
e++;
}
}
if (e > 15)
*Coefficient = n * DSP1ROM[0x0012 + e] << 1;
else
*Coefficient += n;
}
}
else
*Coefficient = m;
*Exponent = e;
}
static int16 DSP1_Truncate (int16 C, int16 E)
{
if (E > 0)
{
if (C > 0)
return (32767);
else
if (C < 0)
return (-32767);
}
else
{
if (E < 0)
return (C * DSP1ROM[0x0031 + E] >> 15);
}
return (C);
}
static void DSP1_Op04 (void)
{
DSP1.Op04Sin = DSP1_Sin(DSP1.Op04Angle) * DSP1.Op04Radius >> 15;
DSP1.Op04Cos = DSP1_Cos(DSP1.Op04Angle) * DSP1.Op04Radius >> 15;
}
static void DSP1_Op0C (void)
{
DSP1.Op0CX2 = (DSP1.Op0CY1 * DSP1_Sin(DSP1.Op0CA) >> 15) + (DSP1.Op0CX1 * DSP1_Cos(DSP1.Op0CA) >> 15);
DSP1.Op0CY2 = (DSP1.Op0CY1 * DSP1_Cos(DSP1.Op0CA) >> 15) - (DSP1.Op0CX1 * DSP1_Sin(DSP1.Op0CA) >> 15);
}
static void DSP1_Parameter (int16 Fx, int16 Fy, int16 Fz, int16 Lfe, int16 Les, int16 Aas, int16 Azs, int16 *Vof, int16 *Vva, int16 *Cx, int16 *Cy)
{
const int16 MaxAZS_Exp[16] =
{
0x38b4, 0x38b7, 0x38ba, 0x38be, 0x38c0, 0x38c4, 0x38c7, 0x38ca,
0x38ce, 0x38d0, 0x38d4, 0x38d7, 0x38da, 0x38dd, 0x38e0, 0x38e4
};
int16 CSec, C, E, MaxAZS, Aux;
int16 LfeNx, LfeNy, LfeNz;
int16 LesNx, LesNy, LesNz;
int16 CentreZ;
// Copy Zenith angle for clipping
int16 AZS = Azs;
// Store Sine and Cosine of Azimuth and Zenith angle
DSP1.SinAas = DSP1_Sin(Aas);
DSP1.CosAas = DSP1_Cos(Aas);
DSP1.SinAzs = DSP1_Sin(Azs);
DSP1.CosAzs = DSP1_Cos(Azs);
DSP1.Nx = DSP1.SinAzs * -DSP1.SinAas >> 15;
DSP1.Ny = DSP1.SinAzs * DSP1.CosAas >> 15;
DSP1.Nz = DSP1.CosAzs * 0x7fff >> 15;
LfeNx = Lfe * DSP1.Nx >> 15;
LfeNy = Lfe * DSP1.Ny >> 15;
LfeNz = Lfe * DSP1.Nz >> 15;
// Center of Projection
DSP1.CentreX = Fx + LfeNx;
DSP1.CentreY = Fy + LfeNy;
CentreZ = Fz + LfeNz;
LesNx = Les * DSP1.Nx >> 15;
LesNy = Les * DSP1.Ny >> 15;
LesNz = Les * DSP1.Nz >> 15;
DSP1.Gx = DSP1.CentreX - LesNx;
DSP1.Gy = DSP1.CentreY - LesNy;
DSP1.Gz = CentreZ - LesNz;
DSP1.E_Les = 0;
DSP1_Normalize(Les, &DSP1.C_Les, &DSP1.E_Les);
DSP1.G_Les = Les;
E = 0;
DSP1_Normalize(CentreZ, &C, &E);
DSP1.VPlane_C = C;
DSP1.VPlane_E = E;
// Determine clip boundary and clip Zenith angle if necessary
MaxAZS = MaxAZS_Exp[-E];
if (AZS < 0)
{
MaxAZS = -MaxAZS;
if (AZS < MaxAZS + 1)
AZS = MaxAZS + 1;
}
else
{
if (AZS > MaxAZS)
AZS = MaxAZS;
}
// Store Sine and Cosine of clipped Zenith angle
DSP1.SinAZS = DSP1_Sin(AZS);
DSP1.CosAZS = DSP1_Cos(AZS);
DSP1_Inverse(DSP1.CosAZS, 0, &DSP1.SecAZS_C1, &DSP1.SecAZS_E1);
DSP1_Normalize(C * DSP1.SecAZS_C1 >> 15, &C, &E);
E += DSP1.SecAZS_E1;
C = DSP1_Truncate(C, E) * DSP1.SinAZS >> 15;
DSP1.CentreX += C * DSP1.SinAas >> 15;
DSP1.CentreY -= C * DSP1.CosAas >> 15;
*Cx = DSP1.CentreX;
*Cy = DSP1.CentreY;
// Raster number of imaginary center and horizontal line
*Vof = 0;
if ((Azs != AZS) || (Azs == MaxAZS))
{
if (Azs == -32768)
Azs = -32767;
C = Azs - MaxAZS;
if (C >= 0)
C--;
Aux = ~(C << 2);
C = Aux * DSP1ROM[0x0328] >> 15;
C = (C * Aux >> 15) + DSP1ROM[0x0327];
*Vof -= (C * Aux >> 15) * Les >> 15;
C = Aux * Aux >> 15;
Aux = (C * DSP1ROM[0x0324] >> 15) + DSP1ROM[0x0325];
DSP1.CosAZS += (C * Aux >> 15) * DSP1.CosAZS >> 15;
}
DSP1.VOffset = Les * DSP1.CosAZS >> 15;
DSP1_Inverse(DSP1.SinAZS, 0, &CSec, &E);
DSP1_Normalize(DSP1.VOffset, &C, &E);
DSP1_Normalize(C * CSec >> 15, &C, &E);
if (C == -32768)
{
C >>= 1;
E++;
}
*Vva = DSP1_Truncate(-C, E);
// Store Secant of clipped Zenith angle
DSP1_Inverse(DSP1.CosAZS, 0, &DSP1.SecAZS_C2, &DSP1.SecAZS_E2);
}
static void DSP1_Raster (int16 Vs, int16 *An, int16 *Bn, int16 *Cn, int16 *Dn)
{
int16 C, E, C1, E1;
DSP1_Inverse((Vs * DSP1.SinAzs >> 15) + DSP1.VOffset, 7, &C, &E);
E += DSP1.VPlane_E;
C1 = C * DSP1.VPlane_C >> 15;
E1 = E + DSP1.SecAZS_E2;
DSP1_Normalize(C1, &C, &E);
C = DSP1_Truncate(C, E);
*An = C * DSP1.CosAas >> 15;
*Cn = C * DSP1.SinAas >> 15;
DSP1_Normalize(C1 * DSP1.SecAZS_C2 >> 15, &C, &E1);
C = DSP1_Truncate(C, E1);
*Bn = C * -DSP1.SinAas >> 15;
*Dn = C * DSP1.CosAas >> 15;
}
static void DSP1_Op02 (void)
{
DSP1_Parameter(DSP1.Op02FX, DSP1.Op02FY, DSP1.Op02FZ, DSP1.Op02LFE, DSP1.Op02LES, DSP1.Op02AAS, DSP1.Op02AZS, &DSP1.Op02VOF, &DSP1.Op02VVA, &DSP1.Op02CX, &DSP1.Op02CY);
}
static void DSP1_Op0A (void)
{
DSP1_Raster(DSP1.Op0AVS, &DSP1.Op0AA, &DSP1.Op0AB, &DSP1.Op0AC, &DSP1.Op0AD);
DSP1.Op0AVS++;
}
static int16 DSP1_ShiftR (int16 C, int16 E)
{
return (C * DSP1ROM[0x0031 + E] >> 15);
}
static void DSP1_Project (int16 X, int16 Y, int16 Z, int16 *H, int16 *V, int16 *M)
{
int32 aux, aux4;
int16 E, E2, E3, E4, E5, refE, E6, E7;
int16 C2, C4, C6, C8, C9, C10, C11, C12, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26;
int16 Px, Py, Pz;
E4 = E3 = E2 = E = E5 = 0;
DSP1_NormalizeDouble((int32) X - DSP1.Gx, &Px, &E4);
DSP1_NormalizeDouble((int32) Y - DSP1.Gy, &Py, &E );
DSP1_NormalizeDouble((int32) Z - DSP1.Gz, &Pz, &E3);
Px >>= 1; // to avoid overflows when calculating the scalar products
E4--;
Py >>= 1;
E--;
Pz >>= 1;
E3--;
refE = (E < E3) ? E : E3;
refE = (refE < E4) ? refE : E4;
Px = DSP1_ShiftR(Px, E4 - refE); // normalize them to the same exponent
Py = DSP1_ShiftR(Py, E - refE);
Pz = DSP1_ShiftR(Pz, E3 - refE);
C11 =- (Px * DSP1.Nx >> 15);
C8 =- (Py * DSP1.Ny >> 15);
C9 =- (Pz * DSP1.Nz >> 15);
C12 = C11 + C8 + C9; // this cannot overflow!
aux4 = C12; // de-normalization with 32-bits arithmetic
refE = 16 - refE; // refE can be up to 3
if (refE >= 0)
aux4 <<= (refE);
else
aux4 >>= -(refE);
if (aux4 == -1)
aux4 = 0; // why?
aux4 >>= 1;
aux = ((uint16) DSP1.G_Les) + aux4; // Les - the scalar product of P with the normal vector of the screen
DSP1_NormalizeDouble(aux, &C10, &E2);
E2 = 15 - E2;
DSP1_Inverse(C10, 0, &C4, &E4);
C2 = C4 * DSP1.C_Les >> 15; // scale factor
// H
E7 = 0;
C16 = Px * ( DSP1.CosAas * 0x7fff >> 15) >> 15;
C20 = Py * ( DSP1.SinAas * 0x7fff >> 15) >> 15;
C17 = C16 + C20; // scalar product of P with the normalized horizontal vector of the screen...
C18 = C17 * C2 >> 15; // ... multiplied by the scale factor
DSP1_Normalize(C18, &C19, &E7);
*H = DSP1_Truncate(C19, DSP1.E_Les - E2 + refE + E7);
// V
E6 = 0;
C21 = Px * ( DSP1.CosAzs * -DSP1.SinAas >> 15) >> 15;
C22 = Py * ( DSP1.CosAzs * DSP1.CosAas >> 15) >> 15;
C23 = Pz * (-DSP1.SinAzs * 0x7fff >> 15) >> 15;
C24 = C21 + C22 + C23; // scalar product of P with the normalized vertical vector of the screen...
C26 = C24 * C2 >> 15; // ... multiplied by the scale factor
DSP1_Normalize(C26, &C25, &E6);
*V = DSP1_Truncate(C25, DSP1.E_Les - E2 + refE + E6);
// M
DSP1_Normalize(C2, &C6, &E4);
*M = DSP1_Truncate(C6, E4 + DSP1.E_Les - E2 - 7); // M is the scale factor divided by 2^7
}
static void DSP1_Op06 (void)
{
DSP1_Project(DSP1.Op06X, DSP1.Op06Y, DSP1.Op06Z, &DSP1.Op06H, &DSP1.Op06V, &DSP1.Op06M);
}
static void DSP1_Op01 (void)
{
int16 SinAz = DSP1_Sin(DSP1.Op01Zr);
int16 CosAz = DSP1_Cos(DSP1.Op01Zr);
int16 SinAy = DSP1_Sin(DSP1.Op01Yr);
int16 CosAy = DSP1_Cos(DSP1.Op01Yr);
int16 SinAx = DSP1_Sin(DSP1.Op01Xr);
int16 CosAx = DSP1_Cos(DSP1.Op01Xr);
DSP1.Op01m >>= 1;
DSP1.matrixA[0][0] = (DSP1.Op01m * CosAz >> 15) * CosAy >> 15;
DSP1.matrixA[0][1] = -((DSP1.Op01m * SinAz >> 15) * CosAy >> 15);
DSP1.matrixA[0][2] = DSP1.Op01m * SinAy >> 15;
DSP1.matrixA[1][0] = ((DSP1.Op01m * SinAz >> 15) * CosAx >> 15) + (((DSP1.Op01m * CosAz >> 15) * SinAx >> 15) * SinAy >> 15);
DSP1.matrixA[1][1] = ((DSP1.Op01m * CosAz >> 15) * CosAx >> 15) - (((DSP1.Op01m * SinAz >> 15) * SinAx >> 15) * SinAy >> 15);
DSP1.matrixA[1][2] = -((DSP1.Op01m * SinAx >> 15) * CosAy >> 15);
DSP1.matrixA[2][0] = ((DSP1.Op01m * SinAz >> 15) * SinAx >> 15) - (((DSP1.Op01m * CosAz >> 15) * CosAx >> 15) * SinAy >> 15);
DSP1.matrixA[2][1] = ((DSP1.Op01m * CosAz >> 15) * SinAx >> 15) + (((DSP1.Op01m * SinAz >> 15) * CosAx >> 15) * SinAy >> 15);
DSP1.matrixA[2][2] = (DSP1.Op01m * CosAx >> 15) * CosAy >> 15;
}
static void DSP1_Op11 (void)
{
int16 SinAz = DSP1_Sin(DSP1.Op11Zr);
int16 CosAz = DSP1_Cos(DSP1.Op11Zr);
int16 SinAy = DSP1_Sin(DSP1.Op11Yr);
int16 CosAy = DSP1_Cos(DSP1.Op11Yr);
int16 SinAx = DSP1_Sin(DSP1.Op11Xr);
int16 CosAx = DSP1_Cos(DSP1.Op11Xr);
DSP1.Op11m >>= 1;
DSP1.matrixB[0][0] = (DSP1.Op11m * CosAz >> 15) * CosAy >> 15;
DSP1.matrixB[0][1] = -((DSP1.Op11m * SinAz >> 15) * CosAy >> 15);
DSP1.matrixB[0][2] = DSP1.Op11m * SinAy >> 15;
DSP1.matrixB[1][0] = ((DSP1.Op11m * SinAz >> 15) * CosAx >> 15) + (((DSP1.Op11m * CosAz >> 15) * SinAx >> 15) * SinAy >> 15);
DSP1.matrixB[1][1] = ((DSP1.Op11m * CosAz >> 15) * CosAx >> 15) - (((DSP1.Op11m * SinAz >> 15) * SinAx >> 15) * SinAy >> 15);
DSP1.matrixB[1][2] = -((DSP1.Op11m * SinAx >> 15) * CosAy >> 15);
DSP1.matrixB[2][0] = ((DSP1.Op11m * SinAz >> 15) * SinAx >> 15) - (((DSP1.Op11m * CosAz >> 15) * CosAx >> 15) * SinAy >> 15);
DSP1.matrixB[2][1] = ((DSP1.Op11m * CosAz >> 15) * SinAx >> 15) + (((DSP1.Op11m * SinAz >> 15) * CosAx >> 15) * SinAy >> 15);
DSP1.matrixB[2][2] = (DSP1.Op11m * CosAx >> 15) * CosAy >> 15;
}
static void DSP1_Op21 (void)
{
int16 SinAz = DSP1_Sin(DSP1.Op21Zr);
int16 CosAz = DSP1_Cos(DSP1.Op21Zr);
int16 SinAy = DSP1_Sin(DSP1.Op21Yr);
int16 CosAy = DSP1_Cos(DSP1.Op21Yr);
int16 SinAx = DSP1_Sin(DSP1.Op21Xr);
int16 CosAx = DSP1_Cos(DSP1.Op21Xr);
DSP1.Op21m >>= 1;
DSP1.matrixC[0][0] = (DSP1.Op21m * CosAz >> 15) * CosAy >> 15;
DSP1.matrixC[0][1] = -((DSP1.Op21m * SinAz >> 15) * CosAy >> 15);
DSP1.matrixC[0][2] = DSP1.Op21m * SinAy >> 15;
DSP1.matrixC[1][0] = ((DSP1.Op21m * SinAz >> 15) * CosAx >> 15) + (((DSP1.Op21m * CosAz >> 15) * SinAx >> 15) * SinAy >> 15);