/******************************************************************************* 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 "seta.h" #include "memmap.h" // Mode 7 scaling constants for all raster lines const int16_t 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_t S9xGetST010(uint32_t 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_t 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 } }; int16_t ST010_Sin(int16_t Theta) { return ST010_SinTable[(Theta >> 8) & 0xff]; } int16_t ST010_Cos(int16_t Theta) { return ST010_SinTable[((Theta + 0x4000) >> 8) & 0xff]; } void ST010_OP01(int16_t x0, int16_t y0, int16_t* x1, int16_t* y1, int16_t* Quadrant, int16_t* 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(int16_t Multiplier, int16_t X0, int16_t Y0, int* X1, int* Y1) { *X1 = X0 * Multiplier << 1; *Y1 = Y0 * Multiplier << 1; } void ST010_Multiply(int16_t Multiplicand, int16_t Multiplier, int* Product) { *Product = Multiplicand * Multiplier << 1; } void ST010_Rotate(int16_t Theta, int16_t X0, int16_t Y0, int16_t* X1, int16_t* 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(int16_t Y0, int16_t X0, int16_t* Distance) { if (X0 < 0) X0 = -X0; if (Y0 < 0) Y0 = -Y0; *Distance = ((X0 * 0x7af0) + 0x4000) >> 15; } void ST010_SortDrivers(uint16_t Positions, uint16_t Places[32], uint16_t Drivers[32]) { bool Sorted; uint16_t Temp; if (Positions > 1) do { Sorted = true; int i; for (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_t Address, uint8_t 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: { #if defined(FAST_LSB_WORD_ACCESS) && !defined(ANDROID) /* TODO - FIXME */ ST010_SortDrivers(*(int16_t*)&Memory.SRAM[0x0024], (uint16_t*)(Memory.SRAM + 0x0040), (uint16_t*)(Memory.SRAM + 0x0080)); #else uint16_t Places[32]; uint16_t 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_t*)(Memory.SRAM + 0x0080)); Offset = 0; for (Pos = 0; Pos < Positions; Pos++) { Memory.SRAM[0x0040 + Offset] = (uint8_t)(Places[Pos]); Memory.SRAM[0x0041 + Offset] = (uint8_t)(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: { #if defined(FAST_LSB_WORD_ACCESS) && !defined(ANDROID) /* TODO - FIXME */ ST010_Scale(*(int16_t*)&Memory.SRAM[0x0004], *(int16_t*)&Memory.SRAM[0x0000], *(int16_t*)&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_t)(x1); Memory.SRAM[0x0011] = (uint8_t)(x1 >> 8); Memory.SRAM[0x0012] = (uint8_t)(x1 >> 16); Memory.SRAM[0x0013] = (uint8_t)(x1 >> 24); Memory.SRAM[0x0014] = (uint8_t)(y1); Memory.SRAM[0x0015] = (uint8_t)(y1 >> 8); Memory.SRAM[0x0016] = (uint8_t)(y1 >> 16); Memory.SRAM[0x0017] = (uint8_t)(y1 >> 24); #endif break; } // 16-bit Multiplication // // Input // 0x0000-0x0001 : Multiplcand (signed) // 0x0002-0x0003 : Multiplier (signed) // Output // 0x0010-0x0013 : Product (signed) // case 0x06: { #if defined(FAST_LSB_WORD_ACCESS) && !defined(ANDROID) /* TODO - FIXME */ ST010_Multiply(*(int16_t*)&Memory.SRAM[0x0000], *(int16_t*)&Memory.SRAM[0x0002], (int*)&Memory.SRAM[0x0010]); #else int Product; ST010_Multiply(ST010_WORD(0x0000), ST010_WORD(0x0002), &Product); Memory.SRAM[0x0010] = (uint8_t)(Product); Memory.SRAM[0x0011] = (uint8_t)(Product >> 8); Memory.SRAM[0x0012] = (uint8_t)(Product >> 16); Memory.SRAM[0x0013] = (uint8_t)(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_t data; int32_t offset = 0; int16_t Theta = ST010_WORD(0x0000); int32_t line; for (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_t)(data); Memory.SRAM[0x00f1 + offset] = (uint8_t)(data >> 8); Memory.SRAM[0x0510 + offset] = (uint8_t)(data); Memory.SRAM[0x0511 + offset] = (uint8_t)(data >> 8); // Calculate Mode 7 Matrix B/C data data = ST010_M7Scale[line] * ST010_Sin(Theta) >> 15; Memory.SRAM[0x0250 + offset] = (uint8_t)(data); Memory.SRAM[0x0251 + offset] = (uint8_t)(data >> 8); if (data) data = ~data; Memory.SRAM[0x03b0 + offset] = (uint8_t)(data); Memory.SRAM[0x03b1 + offset] = (uint8_t)(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: { #if defined(FAST_LSB_WORD_ACCESS) && !defined(ANDROID) /* TODO - FIXME */ ST010_Rotate(*(int16_t*)&Memory.SRAM[0x0004], *(int16_t*)&Memory.SRAM[0x0000], *(int16_t*)&Memory.SRAM[0x0002], (int16_t*)&Memory.SRAM[0x0010], (int16_t*)&Memory.SRAM[0x0012]); #else int16_t x1, y1; ST010_Rotate(ST010_WORD(0x0004), ST010_WORD(0x0000), ST010_WORD(0x0002), &x1, &y1); Memory.SRAM[0x0010] = (uint8_t)(x1); Memory.SRAM[0x0011] = (uint8_t)(x1 >> 8); Memory.SRAM[0x0012] = (uint8_t)(y1); Memory.SRAM[0x0013] = (uint8_t)(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]; #if defined(FAST_LSB_WORD_ACCESS) && !defined(ANDROID) /* TODO - FIXME */ ST010_OP01(*(int16_t*)&Memory.SRAM[0x0000], *(int16_t*)&Memory.SRAM[0x0002], (int16_t*) &Memory.SRAM[0x0000], (int16_t*) &Memory.SRAM[0x0002], (int16_t*) &Memory.SRAM[0x0004], (int16_t*) &Memory.SRAM[0x0010]); #else int16_t x1, y1, Quadrant, Theta; ST010_OP01(ST010_WORD(0x0000), ST010_WORD(0x0002), &x1, &y1, &Quadrant, &Theta); Memory.SRAM[0x0000] = (uint8_t)(x1); Memory.SRAM[0x0001] = (uint8_t)(x1 >> 8); Memory.SRAM[0x0002] = (uint8_t)(y1); Memory.SRAM[0x0003] = (uint8_t)(y1 >> 8); Memory.SRAM[0x0004] = (uint8_t)(Quadrant); Memory.SRAM[0x0005] = (uint8_t)(Quadrant >> 8); Memory.SRAM[0x0010] = (uint8_t)(Theta); Memory.SRAM[0x0011] = (uint8_t)(Theta >> 8); #endif break; } // calculate the vector length of (x,y) case 0x04: { int16_t square, x, y; #if defined(FAST_LSB_WORD_ACCESS) && !defined(ANDROID) /* TODO - FIXME */ x = *((int16_t*)Memory.SRAM); y = *((int16_t*)&Memory.SRAM[2]); #else x = Memory.SRAM[0] | (Memory.SRAM[1] << 8); y = Memory.SRAM[2] | (Memory.SRAM[3] << 8); #endif square = (int16_t)sqrt((double)(y * y + x * x)); //SETA_Distance( x,y,square ); #if defined(FAST_LSB_WORD_ACCESS) && !defined(ANDROID) /* TODO - FIXME */ *((int16_t*)&Memory.SRAM[0x10]) = square; #else Memory.SRAM[0x10] = (uint8_t)(square); Memory.SRAM[0x11] = (uint8_t)(square >> 8); #endif break; } // calculate AI orientation based on specific guidelines case 0x05: { int dx, dy; int16_t a1, b1, c1; uint16_t o1; bool wrap = false; // target (x,y) coordinates int16_t ypos_max = ST010_WORD(0x00C0); int16_t xpos_max = ST010_WORD(0x00C2); // current coordinates and direction int32_t ypos = Memory.SRAM[0xC4] | (Memory.SRAM[0xC5] << 8) | (Memory.SRAM[0xC6] << 16) | (Memory.SRAM[0xC7] << 24); int32_t xpos = Memory.SRAM[0xC8] | (Memory.SRAM[0xC9] << 8) | (Memory.SRAM[0xCA] << 16) | (Memory.SRAM[0xCB] << 24); uint16_t rot = Memory.SRAM[0xCC] | (Memory.SRAM[0xCD] << 8); // physics uint16_t speed = ST010_WORD(0x00D4); uint16_t accel = ST010_WORD(0x00D6); uint16_t speed_max = ST010_WORD(0x00D8); // special condition acknowledgment int16_t system = ST010_WORD(0x00DA); int16_t flags = ST010_WORD(0x00DC); // new target coordinates int16_t ypos_new = ST010_WORD(0x00DE); int16_t 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_t*)&o1); // check for wrapping //if((o1<0x6000 && rot>0xA000) || // (rot<0x6000 && o1>0xA000)) //if(o1 0x8000) { o1 += 0x8000; rot += 0x8000; wrap = true; } //o1=0x0000; //rot=0xFF00; uint16_t 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_t 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_speed < speed) speed = 0; else speed = 0xff00; } // adjust direction by so many degrees // be careful of negative adjustments if ((o1 > rot && (o1 - rot) > 0x80) || (o1 < rot && (rot - o1) >= 0x80)) { if (o1 < rot) rot -= 0x280; else if (o1 > rot) 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_t)(ypos_max); Memory.SRAM[0x00C1] = (uint8_t)(ypos_max >> 8); Memory.SRAM[0x00C2] = (uint8_t)(xpos_max); Memory.SRAM[0x00C3] = (uint8_t)(xpos_max >> 8); Memory.SRAM[0x00C4] = (uint8_t)(ypos); Memory.SRAM[0x00C5] = (uint8_t)(ypos >> 8); Memory.SRAM[0x00C6] = (uint8_t)(ypos >> 16); Memory.SRAM[0x00C7] = (uint8_t)(ypos >> 24); Memory.SRAM[0x00C8] = (uint8_t)(xpos); Memory.SRAM[0x00C9] = (uint8_t)(xpos >> 8); Memory.SRAM[0x00CA] = (uint8_t)(xpos >> 16); Memory.SRAM[0x00CB] = (uint8_t)(xpos >> 24); Memory.SRAM[0x00CC] = (uint8_t)(rot); Memory.SRAM[0x00CD] = (uint8_t)(rot >> 8); Memory.SRAM[0x00D4] = (uint8_t)(speed); Memory.SRAM[0x00D5] = (uint8_t)(speed >> 8); Memory.SRAM[0x00DC] = (uint8_t)(flags); Memory.SRAM[0x00DD] = (uint8_t)(flags >> 8); break; } default: printf("Unknown Op\n"); break; } // lower signal: op processed ST010.op_reg = 0; ST010.execute = 0; } }