/********************************************************************************** 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 - 2007 Brad Jorsch (anomie@users.sourceforge.net), Nach (n-a-c-h@users.sourceforge.net), zones (kasumitokoduck@yahoo.com) (c) Copyright 2006 - 2007 nitsuja 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 (c) Copyright 2002 Matthew Kendora with research by zsKnight, John Weidman, Dark Force 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 DSP emulator code is derived from SNEeSe and OpenSPC: (c) Copyright 1998 - 2003 Brad Martin (c) Copyright 1998 - 2006 Charles Bilyue' 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) Win32 GUI code (c) Copyright 2003 - 2006 blip, funkyass, Matthew Kendora, Nach, nitsuja Mac OS GUI code (c) Copyright 1998 - 2001 John Stiles (c) Copyright 2001 - 2007 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. **********************************************************************************/ #include "seta.h" #include "memmap.h" // Mode 7 scaling constants for all raster lines const int16 ST010_M7Scale[176] = { 0x0380, 0x0325, 0x02da, 0x029c, 0x0268, 0x023b, 0x0215, 0x01f3, 0x01d5, 0x01bb, 0x01a3, 0x018e, 0x017b, 0x016a, 0x015a, 0x014b, 0x013e, 0x0132, 0x0126, 0x011c, 0x0112, 0x0109, 0x0100, 0x00f8, 0x00f0, 0x00e9, 0x00e3, 0x00dc, 0x00d6, 0x00d1, 0x00cb, 0x00c6, 0x00c1, 0x00bd, 0x00b8, 0x00b4, 0x00b0, 0x00ac, 0x00a8, 0x00a5, 0x00a2, 0x009e, 0x009b, 0x0098, 0x0095, 0x0093, 0x0090, 0x008d, 0x008b, 0x0088, 0x0086, 0x0084, 0x0082, 0x0080, 0x007e, 0x007c, 0x007a, 0x0078, 0x0076, 0x0074, 0x0073, 0x0071, 0x006f, 0x006e, 0x006c, 0x006b, 0x0069, 0x0068, 0x0067, 0x0065, 0x0064, 0x0063, 0x0062, 0x0060, 0x005f, 0x005e, 0x005d, 0x005c, 0x005b, 0x005a, 0x0059, 0x0058, 0x0057, 0x0056, 0x0055, 0x0054, 0x0053, 0x0052, 0x0051, 0x0051, 0x0050, 0x004f, 0x004e, 0x004d, 0x004d, 0x004c, 0x004b, 0x004b, 0x004a, 0x0049, 0x0048, 0x0048, 0x0047, 0x0047, 0x0046, 0x0045, 0x0045, 0x0044, 0x0044, 0x0043, 0x0042, 0x0042, 0x0041, 0x0041, 0x0040, 0x0040, 0x003f, 0x003f, 0x003e, 0x003e, 0x003d, 0x003d, 0x003c, 0x003c, 0x003b, 0x003b, 0x003a, 0x003a, 0x003a, 0x0039, 0x0039, 0x0038, 0x0038, 0x0038, 0x0037, 0x0037, 0x0036, 0x0036, 0x0036, 0x0035, 0x0035, 0x0035, 0x0034, 0x0034, 0x0034, 0x0033, 0x0033, 0x0033, 0x0032, 0x0032, 0x0032, 0x0031, 0x0031, 0x0031, 0x0030, 0x0030, 0x0030, 0x0030, 0x002f, 0x002f, 0x002f, 0x002e, 0x002e, 0x002e, 0x002e, 0x002d, 0x002d, 0x002d, 0x002d, 0x002c, 0x002c, 0x002c, 0x002c, 0x002b, 0x002b, 0x002b }; // H-DMA hack bool seta_hack; //temporary Op04 requirement #include #ifndef PI #define PI 3.1415926535897932384626433832795 #endif ST010_Regs ST010; uint8 S9xGetST010(uint32 Address) { if(!(Address&0x80000)) return 0x80; if((Address&0xFFF)==0x20) return ST010.op_reg; if ((Address&0xFFF)==0x21) return ST010.execute; return Memory.SRAM[Address&Memory.SRAMMask]; } const int16 ST010_SinTable[256] = { 0x0000, 0x0324, 0x0648, 0x096a, 0x0c8c, 0x0fab, 0x12c8, 0x15e2, 0x18f9, 0x1c0b, 0x1f1a, 0x2223, 0x2528, 0x2826, 0x2b1f, 0x2e11, 0x30fb, 0x33df, 0x36ba, 0x398c, 0x3c56, 0x3f17, 0x41ce, 0x447a, 0x471c, 0x49b4, 0x4c3f, 0x4ebf, 0x5133, 0x539b, 0x55f5, 0x5842, 0x5a82, 0x5cb3, 0x5ed7, 0x60eb, 0x62f1, 0x64e8, 0x66cf, 0x68a6, 0x6a6d, 0x6c23, 0x6dc9, 0x6f5e, 0x70e2, 0x7254, 0x73b5, 0x7504, 0x7641, 0x776b, 0x7884, 0x7989, 0x7a7c, 0x7b5c, 0x7c29, 0x7ce3, 0x7d89, 0x7e1d, 0x7e9c, 0x7f09, 0x7f61, 0x7fa6, 0x7fd8, 0x7ff5, 0x7fff, 0x7ff5, 0x7fd8, 0x7fa6, 0x7f61, 0x7f09, 0x7e9c, 0x7e1d, 0x7d89, 0x7ce3, 0x7c29, 0x7b5c, 0x7a7c, 0x7989, 0x7884, 0x776b, 0x7641, 0x7504, 0x73b5, 0x7254, 0x70e2, 0x6f5e, 0x6dc9, 0x6c23, 0x6a6d, 0x68a6, 0x66cf, 0x64e8, 0x62f1, 0x60eb, 0x5ed7, 0x5cb3, 0x5a82, 0x5842, 0x55f5, 0x539b, 0x5133, 0x4ebf, 0x4c3f, 0x49b4, 0x471c, 0x447a, 0x41ce, 0x3f17, 0x3c56, 0x398c, 0x36ba, 0x33df, 0x30fb, 0x2e11, 0x2b1f, 0x2826, 0x2528, 0x2223, 0x1f1a, 0x1c0b, 0x18f8, 0x15e2, 0x12c8, 0x0fab, 0x0c8c, 0x096a, 0x0648, 0x0324, 0x0000, -0x0324, -0x0648, -0x096b, -0x0c8c, -0x0fab, -0x12c8, -0x15e2, -0x18f9, -0x1c0b, -0x1f1a, -0x2223, -0x2528, -0x2826, -0x2b1f, -0x2e11, -0x30fb, -0x33df, -0x36ba, -0x398d, -0x3c56, -0x3f17, -0x41ce, -0x447a, -0x471c, -0x49b4, -0x4c3f, -0x4ebf, -0x5133, -0x539b, -0x55f5, -0x5842, -0x5a82, -0x5cb3, -0x5ed7, -0x60ec, -0x62f1, -0x64e8, -0x66cf, -0x68a6, -0x6a6d, -0x6c23, -0x6dc9, -0x6f5e, -0x70e2, -0x7254, -0x73b5, -0x7504, -0x7641, -0x776b, -0x7884, -0x7989, -0x7a7c, -0x7b5c, -0x7c29, -0x7ce3, -0x7d89, -0x7e1d, -0x7e9c, -0x7f09, -0x7f61, -0x7fa6, -0x7fd8, -0x7ff5, -0x7fff, -0x7ff5, -0x7fd8, -0x7fa6, -0x7f61, -0x7f09, -0x7e9c, -0x7e1d, -0x7d89, -0x7ce3, -0x7c29, -0x7b5c, -0x7a7c, -0x7989, -0x7883, -0x776b, -0x7641, -0x7504, -0x73b5, -0x7254, -0x70e2, -0x6f5e, -0x6dc9, -0x6c23, -0x6a6d, -0x68a6, -0x66cf, -0x64e8, -0x62f1, -0x60eb, -0x5ed7, -0x5cb3, -0x5a82, -0x5842, -0x55f5, -0x539a, -0x5133, -0x4ebf, -0x4c3f, -0x49b3, -0x471c, -0x447a, -0x41cd, -0x3f17, -0x3c56, -0x398c, -0x36b9, -0x33de, -0x30fb, -0x2e10, -0x2b1f, -0x2826, -0x2527, -0x2223, -0x1f19, -0x1c0b, -0x18f8, -0x15e2, -0x12c8, -0x0fab, -0x0c8b, -0x096a, -0x0647, -0x0324}; const unsigned char ST010_ArcTan[32][32] = { { 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80}, { 0x80, 0xa0, 0xad, 0xb3, 0xb6, 0xb8, 0xb9, 0xba, 0xbb, 0xbb, 0xbc, 0xbc, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbf, 0xbf, 0xbf, 0xbf}, { 0x80, 0x93, 0xa0, 0xa8, 0xad, 0xb0, 0xb3, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xb9, 0xba, 0xba, 0xbb, 0xbb, 0xbb, 0xbb, 0xbc, 0xbc, 0xbc, 0xbc, 0xbc, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd}, { 0x80, 0x8d, 0x98, 0xa0, 0xa6, 0xaa, 0xad, 0xb0, 0xb1, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb7, 0xb8, 0xb8, 0xb9, 0xb9, 0xba, 0xba, 0xba, 0xba, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbc, 0xbc, 0xbc, 0xbc}, { 0x80, 0x8a, 0x93, 0x9a, 0xa0, 0xa5, 0xa8, 0xab, 0xad, 0xaf, 0xb0, 0xb2, 0xb3, 0xb4, 0xb5, 0xb5, 0xb6, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8, 0xb9, 0xb9, 0xb9, 0xba, 0xba, 0xba, 0xba, 0xba, 0xbb, 0xbb}, { 0x80, 0x88, 0x90, 0x96, 0x9b, 0xa0, 0xa4, 0xa7, 0xa9, 0xab, 0xad, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb4, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9}, { 0x80, 0x87, 0x8d, 0x93, 0x98, 0x9c, 0xa0, 0xa3, 0xa6, 0xa8, 0xaa, 0xac, 0xad, 0xae, 0xb0, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8}, { 0x80, 0x86, 0x8b, 0x90, 0x95, 0x99, 0x9d, 0xa0, 0xa3, 0xa5, 0xa7, 0xa9, 0xaa, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7}, { 0x80, 0x85, 0x8a, 0x8f, 0x93, 0x97, 0x9a, 0x9d, 0xa0, 0xa2, 0xa5, 0xa6, 0xa8, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb5, 0xb5}, { 0x80, 0x85, 0x89, 0x8d, 0x91, 0x95, 0x98, 0x9b, 0x9e, 0xa0, 0xa0, 0xa4, 0xa6, 0xa7, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb4}, { 0x80, 0x84, 0x88, 0x8c, 0x90, 0x93, 0x96, 0x99, 0x9b, 0x9e, 0xa0, 0xa2, 0xa4, 0xa5, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xaf, 0xb0, 0xb0, 0xb1, 0xb2, 0xb2, 0xb2, 0xb3, 0xb3}, { 0x80, 0x84, 0x87, 0x8b, 0x8e, 0x91, 0x94, 0x97, 0x9a, 0x9c, 0x9e, 0xa0, 0xa2, 0xa3, 0xa5, 0xa6, 0xa7, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb1, 0xb2, 0xb2}, { 0x80, 0x83, 0x87, 0x8a, 0x8d, 0x90, 0x93, 0x96, 0x98, 0x9a, 0x9c, 0x9e, 0xa0, 0xa2, 0xa3, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xb0, 0xb0, 0xb0, 0xb1}, { 0x80, 0x83, 0x86, 0x89, 0x8c, 0x8f, 0x92, 0x94, 0x96, 0x99, 0x9b, 0x9d, 0x9e, 0xa0, 0xa2, 0xa3, 0xa4, 0xa5, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xaf, 0xb0}, { 0x80, 0x83, 0x86, 0x89, 0x8b, 0x8e, 0x90, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9d, 0x9e, 0xa0, 0xa1, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xac, 0xad, 0xad, 0xae, 0xae, 0xaf}, { 0x80, 0x83, 0x85, 0x88, 0x8b, 0x8d, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9b, 0x9d, 0x9f, 0xa0, 0xa1, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa8, 0xa9, 0xaa, 0xab, 0xab, 0xac, 0xad, 0xad, 0xae}, { 0x80, 0x83, 0x85, 0x88, 0x8a, 0x8c, 0x8f, 0x91, 0x93, 0x95, 0x97, 0x99, 0x9a, 0x9c, 0x9d, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa5, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xab, 0xac, 0xad}, { 0x80, 0x82, 0x85, 0x87, 0x89, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x97, 0x99, 0x9b, 0x9c, 0x9d, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xac}, { 0x80, 0x82, 0x85, 0x87, 0x89, 0x8b, 0x8d, 0x8f, 0x91, 0x93, 0x95, 0x96, 0x98, 0x99, 0x9b, 0x9c, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab}, { 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x95, 0x97, 0x98, 0x9a, 0x9b, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa6, 0xa7, 0xa8, 0xa8, 0xa9, 0xaa}, { 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x91, 0x93, 0x94, 0x96, 0x97, 0x99, 0x9a, 0x9b, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa5, 0xa6, 0xa7, 0xa7, 0xa8, 0xa9}, { 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8b, 0x8d, 0x8f, 0x90, 0x92, 0x94, 0x95, 0x97, 0x98, 0x99, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa4, 0xa5, 0xa6, 0xa6, 0xa7, 0xa8}, { 0x80, 0x82, 0x84, 0x86, 0x87, 0x89, 0x8b, 0x8d, 0x8e, 0x90, 0x91, 0x93, 0x94, 0x96, 0x97, 0x98, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa3, 0xa4, 0xa5, 0xa6, 0xa6, 0xa7}, { 0x80, 0x82, 0x84, 0x85, 0x87, 0x89, 0x8a, 0x8c, 0x8e, 0x8f, 0x91, 0x92, 0x94, 0x95, 0x96, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa2, 0xa3, 0xa4, 0xa5, 0xa5, 0xa6}, { 0x80, 0x82, 0x83, 0x85, 0x87, 0x88, 0x8a, 0x8c, 0x8d, 0x8f, 0x90, 0x92, 0x93, 0x94, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa2, 0xa3, 0xa4, 0xa5, 0xa5}, { 0x80, 0x82, 0x83, 0x85, 0x86, 0x88, 0x8a, 0x8b, 0x8d, 0x8e, 0x90, 0x91, 0x92, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa2, 0xa3, 0xa4, 0xa4}, { 0x80, 0x82, 0x83, 0x85, 0x86, 0x88, 0x89, 0x8b, 0x8c, 0x8e, 0x8f, 0x90, 0x92, 0x93, 0x94, 0x95, 0x96, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa2, 0xa3, 0xa4}, { 0x80, 0x82, 0x83, 0x85, 0x86, 0x87, 0x89, 0x8a, 0x8c, 0x8d, 0x8e, 0x90, 0x91, 0x92, 0x93, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9e, 0x9f, 0xa0, 0xa1, 0xa1, 0xa2, 0xa3}, { 0x80, 0x81, 0x83, 0x84, 0x86, 0x87, 0x89, 0x8a, 0x8b, 0x8d, 0x8e, 0x8f, 0x90, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9e, 0x9f, 0xa0, 0xa1, 0xa1, 0xa2}, { 0x80, 0x81, 0x83, 0x84, 0x86, 0x87, 0x88, 0x8a, 0x8b, 0x8c, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0x9f, 0xa0, 0xa1, 0xa1}, { 0x80, 0x81, 0x83, 0x84, 0x85, 0x87, 0x88, 0x89, 0x8b, 0x8c, 0x8d, 0x8e, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0x9f, 0xa0, 0xa1}, { 0x80, 0x81, 0x83, 0x84, 0x85, 0x87, 0x88, 0x89, 0x8a, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9c, 0x9d, 0x9e, 0x9f, 0x9f, 0xa0}}; short ST010_Sin(short Theta) { return ST010_SinTable[(Theta >> 8) & 0xff]; } short ST010_Cos(short Theta) { return ST010_SinTable[((Theta + 0x4000) >> 8) & 0xff]; } void ST010_OP01(short x0, short y0, short &x1, short &y1, short &Quadrant, short &Theta) { if ((x0 < 0) && (y0 < 0)) { x1 = -x0; y1 = -y0; Quadrant = -0x8000; } else if (x0 < 0) { x1 = y0; y1 = -x0; Quadrant = -0x4000; } else if (y0 < 0) { x1 = -y0; y1 = x0; Quadrant = 0x4000; } else { x1 = x0; y1 = y0; Quadrant = 0x0000; } while ((x1 > 0x1f) || (y1 > 0x1f)) { if (x1 > 1) x1 >>= 1; if (y1 > 1) y1 >>= 1; } if (y1 == 0) Quadrant += 0x4000; Theta = (ST010_ArcTan[y1][x1] << 8) ^ Quadrant; } void ST010_Scale(short Multiplier, short X0, short Y0, int &X1, int &Y1) { X1 = X0 * Multiplier << 1; Y1 = Y0 * Multiplier << 1; } void ST010_Multiply(short Multiplicand, short Multiplier, int &Product) { Product = Multiplicand * Multiplier << 1; } void ST010_Rotate(short Theta, short X0, short Y0, short &X1, short &Y1) { X1 = (Y0 * ST010_Sin(Theta) >> 15) + (X0 * ST010_Cos(Theta) >> 15); Y1 = (Y0 * ST010_Cos(Theta) >> 15) - (X0 * ST010_Sin(Theta) >> 15); } void SETA_Distance(short Y0, short X0, short &Distance) { if (X0 < 0) X0 = -X0; if (Y0 < 0) Y0 = -Y0; Distance = ((X0 * 0x7af0) + 0x4000) >> 15; } void ST010_SortDrivers(uint16 Positions, uint16 Places[32], uint16 Drivers[32]) { bool Sorted; uint16 Temp; if (Positions > 1) do { Sorted = true; for (int i = 0; i < Positions - 1; i++) if (Places[i] < Places[i + 1]) { Temp = Places[i + 1]; Places[i + 1] = Places[i]; Places[i] = Temp; Temp = Drivers[i + 1]; Drivers[i + 1] = Drivers[i]; Drivers[i] = Temp; Sorted = false; } Positions--; } while (!Sorted); } #define ST010_WORD(offset) (Memory.SRAM[offset + 1] << 8) | Memory.SRAM[offset] void S9xSetST010(uint32 Address, uint8 Byte) { if(!(Address&0x80000)) { ST010.control_enable=TRUE; return; } //printf("Write %06X:%02X\n", Address, Byte); if((Address &0xFFF) ==0x20 && ST010.control_enable) ST010.op_reg=Byte; if((Address &0xFFF) ==0x21 && ST010.control_enable) ST010.execute=Byte; else Memory.SRAM[Address&Memory.SRAMMask]=Byte; if(ST010.execute&0x80) { switch(ST010.op_reg) { // Sorts Driver Placements // // Input // 0x0024-0x0025 : Positions // 0x0040-0x007f : Places // 0x0080-0x00ff : Drivers // Output // 0x0040-0x007f : Places // 0x0080-0x00ff : Drivers // case 0x02: { #ifdef FAST_LSB_WORD_ACCESS ST010_SortDrivers(*(uint16*)(Memory.SRAM + 0x0024), (uint16*) (Memory.SRAM + 0x0040), (uint16*) (Memory.SRAM + 0x0080)); #else uint16 Places[32]; uint16 Positions = ST010_WORD(0x0024); int Pos, Offset; Offset = 0; for (Pos = 0; Pos < Positions; Pos++) { Places[Pos] = ST010_WORD(0x0040 + Offset); Offset += 2; } ST010_SortDrivers(Positions, Places, (uint16*) (Memory.SRAM + 0x0080)); Offset = 0; for (Pos = 0; Pos < Positions; Pos++) { Memory.SRAM[0x0040 + Offset]=(uint8)(Places[Pos]); Memory.SRAM[0x0041 + Offset]=(uint8)(Places[Pos] >> 8); Offset += 2; } #endif break; } // Two Dimensional Coordinate Scale // // Input // 0x0000-0x0001 : X0 (signed) // 0x0002-0x0003 : Y0 (signed) // 0x0004-0x0005 : Multiplier (signed) // Output // 0x0010-0x0013 : X1 (signed) // 0x0014-0x0017 : Y1 (signed) // case 0x03: { #ifdef FAST_LSB_WORD_ACCESS ST010_Scale(*(short*)&Memory.SRAM[0x0004], *(short*)&Memory.SRAM[0x0000], *(short*)&Memory.SRAM[0x0002], (int&) Memory.SRAM[0x0010], (int&) Memory.SRAM[0x0014]); #else int x1, y1; ST010_Scale(ST010_WORD(0x0004), ST010_WORD(0x0000), ST010_WORD(0x0002), x1, y1); Memory.SRAM[0x0010]=(uint8)(x1); Memory.SRAM[0x0011]=(uint8)(x1 >> 8); Memory.SRAM[0x0012]=(uint8)(x1 >> 16); Memory.SRAM[0x0013]=(uint8)(x1 >> 24); Memory.SRAM[0x0014]=(uint8)(y1); Memory.SRAM[0x0015]=(uint8)(y1 >> 8); Memory.SRAM[0x0016]=(uint8)(y1 >> 16); Memory.SRAM[0x0017]=(uint8)(y1 >> 24); #endif break; } // 16-bit Multiplication // // Input // 0x0000-0x0001 : Multiplcand (signed) // 0x0002-0x0003 : Multiplier (signed) // Output // 0x0010-0x0013 : Product (signed) // case 0x06: { #ifdef FAST_LSB_WORD_ACCESS ST010_Multiply(*(short*)&Memory.SRAM[0x0000], *(short*)&Memory.SRAM[0x0002], (int&) Memory.SRAM[0x0010]); #else int Product; ST010_Multiply(ST010_WORD(0x0000), ST010_WORD(0x0002), Product); Memory.SRAM[0x0010]=(uint8)(Product); Memory.SRAM[0x0011]=(uint8)(Product >> 8); Memory.SRAM[0x0012]=(uint8)(Product >> 16); Memory.SRAM[0x0013]=(uint8)(Product >> 24); #endif break; } // Mode 7 Raster Data Calculation // // Input // 0x0000-0x0001 : Angle (signed) // Output // 0x00f0-0x024f : Mode 7 Matrix A // 0x0250-0x03af : Mode 7 Matrix B // 0x03b0-0x050f : Mode 7 Matrix C // 0x0510-0x066f : Mode 7 Matrix D // case 0x07: { int16 data; int32 offset = 0; int16 Theta = ST010_WORD(0x0000); for (int32 line = 0; line < 176; line++) { // Calculate Mode 7 Matrix A/D data data = ST010_M7Scale[line] * ST010_Cos(Theta) >> 15; Memory.SRAM[0x00f0 + offset]=(uint8)(data); Memory.SRAM[0x00f1 + offset]=(uint8)(data >> 8); Memory.SRAM[0x0510 + offset]=(uint8)(data); Memory.SRAM[0x0511 + offset]=(uint8)(data >> 8); // Calculate Mode 7 Matrix B/C data data = ST010_M7Scale[line] * ST010_Sin(Theta) >> 15; Memory.SRAM[0x0250 + offset]=(uint8)(data); Memory.SRAM[0x0251 + offset]=(uint8)(data >> 8); if (data) data = ~data; Memory.SRAM[0x03b0 + offset]=(uint8)(data); Memory.SRAM[0x03b1 + offset]=(uint8)(data >> 8); offset += 2; } // Shift Angle for use with Lookup table Memory.SRAM[0x00] = Memory.SRAM[0x01]; Memory.SRAM[0x01] = 0x00; break; } // Two dimensional Coordinate Rotation // // Input // 0x0000-0x0001 : X0 (signed) // 0x0002-0x0003 : Y0 (signed) // 0x0004-0x0005 : Angle (signed) // Output // 0x0010-0x0011 : X1 (signed) // 0x0012-0x0013 : Y1 (signed) // case 0x08: { #ifdef FAST_LSB_WORD_ACCESS ST010_Rotate(*(short*)&Memory.SRAM[0x0004], *(short*)&Memory.SRAM[0x0000], *(short*)&Memory.SRAM[0x0002], (short&) Memory.SRAM[0x0010], (short&) Memory.SRAM[0x0012]); #else short x1, y1; ST010_Rotate(ST010_WORD(0x0004), ST010_WORD(0x0000), ST010_WORD(0x0002), x1, y1); Memory.SRAM[0x0010]=(uint8)(x1); Memory.SRAM[0x0011]=(uint8)(x1 >> 8); Memory.SRAM[0x0012]=(uint8)(y1); Memory.SRAM[0x0013]=(uint8)(y1 >> 8); #endif break; } // Input // 0x0000-0x0001 : DX (signed) // 0x0002-0x0003 : DY (signed) // Output // 0x0010-0x0011 : Angle (signed) // case 0x01: { Memory.SRAM[0x0006] = Memory.SRAM[0x0002]; Memory.SRAM[0x0007] = Memory.SRAM[0x0003]; #ifdef FAST_LSB_WORD_ACCESS ST010_OP01(*(short*)&Memory.SRAM[0x0000], *(short*)&Memory.SRAM[0x0002], (short&) Memory.SRAM[0x0000], (short&) Memory.SRAM[0x0002], (short&) Memory.SRAM[0x0004], (short&) Memory.SRAM[0x0010]); #else short x1, y1, Quadrant, Theta; ST010_OP01(ST010_WORD(0x0000), ST010_WORD(0x0002), x1, y1, Quadrant, Theta); Memory.SRAM[0x0000]=(uint8)(x1); Memory.SRAM[0x0001]=(uint8)(x1 >> 8); Memory.SRAM[0x0002]=(uint8)(y1); Memory.SRAM[0x0003]=(uint8)(y1 >> 8); Memory.SRAM[0x0004]=(uint8)(Quadrant); Memory.SRAM[0x0005]=(uint8)(Quadrant >> 8); Memory.SRAM[0x0010]=(uint8)(Theta); Memory.SRAM[0x0011]=(uint8)(Theta >> 8); #endif break; } // calculate the vector length of (x,y) case 0x04: { int16 square, x,y; #ifdef FAST_LSB_WORD_ACCESS x=*((int16*)Memory.SRAM); y=*((int16*)&Memory.SRAM[2]); #else x=Memory.SRAM[0]|(Memory.SRAM[1]<<8); y=Memory.SRAM[2]|(Memory.SRAM[3]<<8); #endif square=(int16)sqrt((double)(y*y+x*x)); //SETA_Distance( x,y,square ); #ifdef FAST_LSB_WORD_ACCESS *((int16*)&Memory.SRAM[0x10])=square; #else Memory.SRAM[0x10]=(uint8)(square); Memory.SRAM[0x11]=(uint8)(square>>8); #endif break; } // calculate AI orientation based on specific guidelines case 0x05: { int dx,dy; int16 a1,b1,c1; uint16 o1; bool wrap=false; // target (x,y) coordinates int16 ypos_max = ST010_WORD(0x00C0); int16 xpos_max = ST010_WORD(0x00C2); // current coordinates and direction int32 ypos = Memory.SRAM[0xC4]|(Memory.SRAM[0xC5]<<8)|(Memory.SRAM[0xC6]<<16)|(Memory.SRAM[0xC7]<<24); int32 xpos = Memory.SRAM[0xC8]|(Memory.SRAM[0xC9]<<8)|(Memory.SRAM[0xCA]<<16)|(Memory.SRAM[0xCB]<<24); uint16 rot = Memory.SRAM[0xCC]|(Memory.SRAM[0xCD]<<8); // physics uint16 speed = ST010_WORD(0x00D4); uint16 accel = ST010_WORD(0x00D6); uint16 speed_max = ST010_WORD(0x00D8); // special condition acknowledgment int16 system = ST010_WORD(0x00DA); int16 flags = ST010_WORD(0x00DC); // new target coordinates int16 ypos_new = ST010_WORD(0x00DE); int16 xpos_new = ST010_WORD(0x00E0); // mask upper bit xpos_new &= 0x7FFF; // get the current distance dx = xpos_max-(xpos>>16); dy = ypos_max-(ypos>>16); // quirk: clear and move in9 Memory.SRAM[0xD2]=0xFF; Memory.SRAM[0xD3]=0xFF; Memory.SRAM[0xDA]=0; Memory.SRAM[0xDB]=0; // grab the target angle ST010_OP01(dy,dx,a1,b1,c1,(int16 &)o1); // check for wrapping //if((o1<0x6000 && rot>0xA000) || // (rot<0x6000 && o1>0xA000)) //if(o10x8000) { o1+=0x8000; rot+=0x8000; wrap=true; } //o1=0x0000; //rot=0xFF00; uint16 old_speed; old_speed = speed; // special case if(abs(o1-rot)==0x8000) { speed = 0x100; } // slow down for sharp curves else if(abs(o1-rot)>=0x1000) { uint32 slow = abs(o1-rot); slow >>= 4; // scaling speed -= slow; } // otherwise accelerate else { speed += accel; if(speed > speed_max) { // clip speed speed = speed_max; } } // prevent negative/positive overflow if(abs(old_speed-speed)>0x8000) { if(old_speedrot && (o1-rot)>0x80) || (o1=0x80) ) { if(o1rot) rot+=0x280; } // turn off wrapping if(wrap) rot-=0x8000; // now check the distances (store for later) dx = (xpos_max<<16)-xpos; dy = (ypos_max<<16)-ypos; dx>>=16; dy>>=16; // if we're in so many units of the target, signal it if( ( system && (dy<=6 && dy>=-8) && (dx<=126 && dx>=-128)) || (!system && (dx<=6 && dx>=-8) && (dy<=126 && dy>=-128)) ) { // announce our new destination and flag it xpos_max = xpos_new&0x7FFF; ypos_max = ypos_new; flags |= 0x08; } // update position xpos -= (ST010_Cos(rot) * 0x400 >> 15) * (speed >> 8) << 1; ypos -= (ST010_Sin(rot) * 0x400 >> 15) * (speed >> 8) << 1; // quirk: mask upper byte xpos &= 0x1FFFFFFF; ypos &= 0x1FFFFFFF; Memory.SRAM[0x00C0]=(uint8)(ypos_max); Memory.SRAM[0x00C1]=(uint8)(ypos_max >> 8); Memory.SRAM[0x00C2]=(uint8)(xpos_max); Memory.SRAM[0x00C3]=(uint8)(xpos_max >> 8); Memory.SRAM[0x00C4]=(uint8)(ypos); Memory.SRAM[0x00C5]=(uint8)(ypos >> 8); Memory.SRAM[0x00C6]=(uint8)(ypos >> 16); Memory.SRAM[0x00C7]=(uint8)(ypos >> 24); Memory.SRAM[0x00C8]=(uint8)(xpos); Memory.SRAM[0x00C9]=(uint8)(xpos >> 8); Memory.SRAM[0x00CA]=(uint8)(xpos >> 16); Memory.SRAM[0x00CB]=(uint8)(xpos >> 24); Memory.SRAM[0x00CC]=(uint8)(rot); Memory.SRAM[0x00CD]=(uint8)(rot >> 8); Memory.SRAM[0x00D4]=(uint8)(speed); Memory.SRAM[0x00D5]=(uint8)(speed >> 8); Memory.SRAM[0x00DC]=(uint8)(flags); Memory.SRAM[0x00DD]=(uint8)(flags >> 8); break; } default: //printf("Unknown Op\n"); break; } // lower signal: op processed ST010.op_reg=0; ST010.execute=0; } }