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@@ -0,0 +1,576 @@
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/*
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Copyright (C) 2003 ZSNES Team ( zsknight@zsnes.com / _demo_@zsnes.com )
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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//http://users.tpg.com.au/trauma/dsp/st010.html
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#ifdef __LINUX__
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#include "gblhdr.h"
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#else
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#include <stdio.h>
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#include <string.h>
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#endif
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#define ABS(x) ((x)<0?-(x):(x))
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#define SRAM setaramdata
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#ifdef __WIN32__
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extern "C" {
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#endif
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extern unsigned char *setaramdata;
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void ST010DoCommand(void);
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#ifdef __WIN32__
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}
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#endif
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//C++ style code in C
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#define bool unsigned char
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#define true 1
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#define false 0
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typedef signed char int8;
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typedef unsigned char uint8;
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typedef signed short int16;
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typedef unsigned short uint16;
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typedef int int32;
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typedef unsigned uint32;
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// Mode 7 scaling constants for all raster lines
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const int16 ST010_M7Scale[176] = {
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0x0380, 0x0325, 0x02da, 0x029c, 0x0268, 0x023b, 0x0215, 0x01f3,
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0x01d5, 0x01bb, 0x01a3, 0x018e, 0x017b, 0x016a, 0x015a, 0x014b,
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0x013e, 0x0132, 0x0126, 0x011c, 0x0112, 0x0109, 0x0100, 0x00f8,
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0x00f0, 0x00e9, 0x00e3, 0x00dc, 0x00d6, 0x00d1, 0x00cb, 0x00c6,
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0x00c1, 0x00bd, 0x00b8, 0x00b4, 0x00b0, 0x00ac, 0x00a8, 0x00a5,
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0x00a2, 0x009e, 0x009b, 0x0098, 0x0095, 0x0093, 0x0090, 0x008d,
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0x008b, 0x0088, 0x0086, 0x0084, 0x0082, 0x0080, 0x007e, 0x007c,
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0x007a, 0x0078, 0x0076, 0x0074, 0x0073, 0x0071, 0x006f, 0x006e,
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0x006c, 0x006b, 0x0069, 0x0068, 0x0067, 0x0065, 0x0064, 0x0063,
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0x0062, 0x0060, 0x005f, 0x005e, 0x005d, 0x005c, 0x005b, 0x005a,
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0x0059, 0x0058, 0x0057, 0x0056, 0x0055, 0x0054, 0x0053, 0x0052,
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0x0051, 0x0051, 0x0050, 0x004f, 0x004e, 0x004d, 0x004d, 0x004c,
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0x004b, 0x004b, 0x004a, 0x0049, 0x0048, 0x0048, 0x0047, 0x0047,
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0x0046, 0x0045, 0x0045, 0x0044, 0x0044, 0x0043, 0x0042, 0x0042,
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0x0041, 0x0041, 0x0040, 0x0040, 0x003f, 0x003f, 0x003e, 0x003e,
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0x003d, 0x003d, 0x003c, 0x003c, 0x003b, 0x003b, 0x003a, 0x003a,
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0x003a, 0x0039, 0x0039, 0x0038, 0x0038, 0x0038, 0x0037, 0x0037,
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0x0036, 0x0036, 0x0036, 0x0035, 0x0035, 0x0035, 0x0034, 0x0034,
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0x0034, 0x0033, 0x0033, 0x0033, 0x0032, 0x0032, 0x0032, 0x0031,
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0x0031, 0x0031, 0x0030, 0x0030, 0x0030, 0x0030, 0x002f, 0x002f,
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0x002f, 0x002e, 0x002e, 0x002e, 0x002e, 0x002d, 0x002d, 0x002d,
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0x002d, 0x002c, 0x002c, 0x002c, 0x002c, 0x002b, 0x002b, 0x002b
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};
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//temporary Op04 requirement
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#include <math.h>
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const int16 ST010_SinTable[256] = {
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0x0000, 0x0324, 0x0648, 0x096a, 0x0c8c, 0x0fab, 0x12c8, 0x15e2,
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0x18f9, 0x1c0b, 0x1f1a, 0x2223, 0x2528, 0x2826, 0x2b1f, 0x2e11,
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0x30fb, 0x33df, 0x36ba, 0x398c, 0x3c56, 0x3f17, 0x41ce, 0x447a,
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0x471c, 0x49b4, 0x4c3f, 0x4ebf, 0x5133, 0x539b, 0x55f5, 0x5842,
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0x5a82, 0x5cb3, 0x5ed7, 0x60eb, 0x62f1, 0x64e8, 0x66cf, 0x68a6,
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0x6a6d, 0x6c23, 0x6dc9, 0x6f5e, 0x70e2, 0x7254, 0x73b5, 0x7504,
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0x7641, 0x776b, 0x7884, 0x7989, 0x7a7c, 0x7b5c, 0x7c29, 0x7ce3,
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0x7d89, 0x7e1d, 0x7e9c, 0x7f09, 0x7f61, 0x7fa6, 0x7fd8, 0x7ff5,
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0x7fff, 0x7ff5, 0x7fd8, 0x7fa6, 0x7f61, 0x7f09, 0x7e9c, 0x7e1d,
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0x7d89, 0x7ce3, 0x7c29, 0x7b5c, 0x7a7c, 0x7989, 0x7884, 0x776b,
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0x7641, 0x7504, 0x73b5, 0x7254, 0x70e2, 0x6f5e, 0x6dc9, 0x6c23,
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0x6a6d, 0x68a6, 0x66cf, 0x64e8, 0x62f1, 0x60eb, 0x5ed7, 0x5cb3,
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0x5a82, 0x5842, 0x55f5, 0x539b, 0x5133, 0x4ebf, 0x4c3f, 0x49b4,
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0x471c, 0x447a, 0x41ce, 0x3f17, 0x3c56, 0x398c, 0x36ba, 0x33df,
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0x30fb, 0x2e11, 0x2b1f, 0x2826, 0x2528, 0x2223, 0x1f1a, 0x1c0b,
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0x18f8, 0x15e2, 0x12c8, 0x0fab, 0x0c8c, 0x096a, 0x0648, 0x0324,
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0x0000, -0x0324, -0x0648, -0x096b, -0x0c8c, -0x0fab, -0x12c8, -0x15e2,
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-0x18f9, -0x1c0b, -0x1f1a, -0x2223, -0x2528, -0x2826, -0x2b1f, -0x2e11,
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-0x30fb, -0x33df, -0x36ba, -0x398d, -0x3c56, -0x3f17, -0x41ce, -0x447a,
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-0x471c, -0x49b4, -0x4c3f, -0x4ebf, -0x5133, -0x539b, -0x55f5, -0x5842,
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-0x5a82, -0x5cb3, -0x5ed7, -0x60ec, -0x62f1, -0x64e8, -0x66cf, -0x68a6,
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-0x6a6d, -0x6c23, -0x6dc9, -0x6f5e, -0x70e2, -0x7254, -0x73b5, -0x7504,
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-0x7641, -0x776b, -0x7884, -0x7989, -0x7a7c, -0x7b5c, -0x7c29, -0x7ce3,
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-0x7d89, -0x7e1d, -0x7e9c, -0x7f09, -0x7f61, -0x7fa6, -0x7fd8, -0x7ff5,
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-0x7fff, -0x7ff5, -0x7fd8, -0x7fa6, -0x7f61, -0x7f09, -0x7e9c, -0x7e1d,
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-0x7d89, -0x7ce3, -0x7c29, -0x7b5c, -0x7a7c, -0x7989, -0x7883, -0x776b,
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-0x7641, -0x7504, -0x73b5, -0x7254, -0x70e2, -0x6f5e, -0x6dc9, -0x6c23,
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-0x6a6d, -0x68a6, -0x66cf, -0x64e8, -0x62f1, -0x60eb, -0x5ed7, -0x5cb3,
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-0x5a82, -0x5842, -0x55f5, -0x539a, -0x5133, -0x4ebf, -0x4c3f, -0x49b3,
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-0x471c, -0x447a, -0x41cd, -0x3f17, -0x3c56, -0x398c, -0x36b9, -0x33de,
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-0x30fb, -0x2e10, -0x2b1f, -0x2826, -0x2527, -0x2223, -0x1f19, -0x1c0b,
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-0x18f8, -0x15e2, -0x12c8, -0x0fab, -0x0c8b, -0x096a, -0x0647, -0x0324};
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const unsigned char ST010_ArcTan[32][32] = {
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{ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
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0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80},
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{ 0x80, 0xa0, 0xad, 0xb3, 0xb6, 0xb8, 0xb9, 0xba, 0xbb, 0xbb, 0xbc, 0xbc, 0xbd, 0xbd, 0xbd, 0xbd,
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0xbd, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbe, 0xbf, 0xbf, 0xbf, 0xbf},
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{ 0x80, 0x93, 0xa0, 0xa8, 0xad, 0xb0, 0xb3, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xb9, 0xba, 0xba, 0xbb,
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0xbb, 0xbb, 0xbb, 0xbc, 0xbc, 0xbc, 0xbc, 0xbc, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd, 0xbd},
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{ 0x80, 0x8d, 0x98, 0xa0, 0xa6, 0xaa, 0xad, 0xb0, 0xb1, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb7, 0xb8,
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0xb8, 0xb9, 0xb9, 0xba, 0xba, 0xba, 0xba, 0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0xbc, 0xbc, 0xbc, 0xbc},
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{ 0x80, 0x8a, 0x93, 0x9a, 0xa0, 0xa5, 0xa8, 0xab, 0xad, 0xaf, 0xb0, 0xb2, 0xb3, 0xb4, 0xb5, 0xb5,
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0xb6, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8, 0xb9, 0xb9, 0xb9, 0xba, 0xba, 0xba, 0xba, 0xba, 0xbb, 0xbb},
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{ 0x80, 0x88, 0x90, 0x96, 0x9b, 0xa0, 0xa4, 0xa7, 0xa9, 0xab, 0xad, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3,
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0xb4, 0xb4, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8, 0xb9, 0xb9, 0xb9, 0xb9, 0xb9},
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{ 0x80, 0x87, 0x8d, 0x93, 0x98, 0x9c, 0xa0, 0xa3, 0xa6, 0xa8, 0xaa, 0xac, 0xad, 0xae, 0xb0, 0xb0,
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0xb1, 0xb2, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7, 0xb7, 0xb8, 0xb8, 0xb8},
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{ 0x80, 0x86, 0x8b, 0x90, 0x95, 0x99, 0x9d, 0xa0, 0xa3, 0xa5, 0xa7, 0xa9, 0xaa, 0xac, 0xad, 0xae,
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0xaf, 0xb0, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb6, 0xb6, 0xb6, 0xb7, 0xb7},
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{ 0x80, 0x85, 0x8a, 0x8f, 0x93, 0x97, 0x9a, 0x9d, 0xa0, 0xa2, 0xa5, 0xa6, 0xa8, 0xaa, 0xab, 0xac,
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0xad, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb5, 0xb5, 0xb5, 0xb5},
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{ 0x80, 0x85, 0x89, 0x8d, 0x91, 0x95, 0x98, 0x9b, 0x9e, 0xa0, 0xa0, 0xa4, 0xa6, 0xa7, 0xa9, 0xaa,
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0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb1, 0xb2, 0xb2, 0xb3, 0xb3, 0xb4, 0xb4, 0xb4},
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{ 0x80, 0x84, 0x88, 0x8c, 0x90, 0x93, 0x96, 0x99, 0x9b, 0x9e, 0xa0, 0xa2, 0xa4, 0xa5, 0xa7, 0xa8,
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0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xaf, 0xb0, 0xb0, 0xb1, 0xb2, 0xb2, 0xb2, 0xb3, 0xb3},
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{ 0x80, 0x84, 0x87, 0x8b, 0x8e, 0x91, 0x94, 0x97, 0x9a, 0x9c, 0x9e, 0xa0, 0xa2, 0xa3, 0xa5, 0xa6,
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0xa7, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xb0, 0xb0, 0xb1, 0xb1, 0xb2, 0xb2},
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{ 0x80, 0x83, 0x87, 0x8a, 0x8d, 0x90, 0x93, 0x96, 0x98, 0x9a, 0x9c, 0x9e, 0xa0, 0xa2, 0xa3, 0xa5,
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0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xb0, 0xb0, 0xb0, 0xb1},
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{ 0x80, 0x83, 0x86, 0x89, 0x8c, 0x8f, 0x92, 0x94, 0x96, 0x99, 0x9b, 0x9d, 0x9e, 0xa0, 0xa2, 0xa3,
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0xa4, 0xa5, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab, 0xac, 0xac, 0xad, 0xae, 0xae, 0xaf, 0xaf, 0xb0},
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{ 0x80, 0x83, 0x86, 0x89, 0x8b, 0x8e, 0x90, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9d, 0x9e, 0xa0, 0xa1,
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0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xac, 0xad, 0xad, 0xae, 0xae, 0xaf},
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{ 0x80, 0x83, 0x85, 0x88, 0x8b, 0x8d, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9b, 0x9d, 0x9f, 0xa0,
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0xa1, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa8, 0xa9, 0xaa, 0xab, 0xab, 0xac, 0xad, 0xad, 0xae},
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{ 0x80, 0x83, 0x85, 0x88, 0x8a, 0x8c, 0x8f, 0x91, 0x93, 0x95, 0x97, 0x99, 0x9a, 0x9c, 0x9d, 0x9f,
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0xa0, 0xa1, 0xa2, 0xa3, 0xa5, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xab, 0xac, 0xad},
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{ 0x80, 0x82, 0x85, 0x87, 0x89, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x97, 0x99, 0x9b, 0x9c, 0x9d,
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0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa8, 0xa9, 0xaa, 0xaa, 0xab, 0xac},
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{ 0x80, 0x82, 0x85, 0x87, 0x89, 0x8b, 0x8d, 0x8f, 0x91, 0x93, 0x95, 0x96, 0x98, 0x99, 0x9b, 0x9c,
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0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab},
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{ 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x95, 0x97, 0x98, 0x9a, 0x9b,
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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 ST010_SortDrivers(uint16 Positions, uint16 Places[32], uint16 Drivers[32])
|
|
|
|
|
{
|
|
|
|
|
bool Sorted;
|
|
|
|
|
uint16 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) (*((short *)(SRAM+offset)))
|
|
|
|
|
//#define ST010_WORD(offset) (SRAM[offset + 1] << 8) | SRAM[offset]
|
|
|
|
|
|
|
|
|
|
void ST010DoCommand(void)
|
|
|
|
|
{
|
|
|
|
|
switch(SRAM[0x20])
|
|
|
|
|
{
|
|
|
|
|
/*
|
|
|
|
|
Calculate track data based on direction coords
|
|
|
|
|
|
|
|
|
|
Input
|
|
|
|
|
0x0000-0x0001 : DX (signed)
|
|
|
|
|
0x0002-0x0003 : DY (signed)
|
|
|
|
|
Output
|
|
|
|
|
0x0010-0x0011 : Angle (signed)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
case 0x01:
|
|
|
|
|
{
|
|
|
|
|
SRAM[0x0006] = SRAM[0x0002];
|
|
|
|
|
SRAM[0x0007] = SRAM[0x0003];
|
|
|
|
|
ST010_OP01(*(short*)&SRAM[0x0000], *(short*)&SRAM[0x0002], (short *)SRAM, (short *)SRAM+2, (short *)SRAM+4, (short *)SRAM+10);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
//Sorts a bunch of values by weight
|
|
|
|
|
|
|
|
|
|
case 0x02:
|
|
|
|
|
{
|
|
|
|
|
ST010_SortDrivers(*(short*)&SRAM[0x0024], (uint16*) (SRAM + 0x0040), (uint16*) (SRAM + 0x0080));
|
|
|
|
|
}
|
|
|
|
|
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:
|
|
|
|
|
{
|
|
|
|
|
ST010_Scale(*(short*)&SRAM[0x0004], *(short*)&SRAM[0x0000], *(short*)&SRAM[0x0002], (int *)SRAM+10, (int *)SRAM+14);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
//Calculate the vector length of (x,y)
|
|
|
|
|
|
|
|
|
|
case 0x04:
|
|
|
|
|
{
|
|
|
|
|
int16 square, x,y;
|
|
|
|
|
x=*((int16*)SRAM);
|
|
|
|
|
y=*((int16*)&SRAM[2]);
|
|
|
|
|
square=(int16)sqrt((double)(y*y+x*x));
|
|
|
|
|
*((int16*)&SRAM[0x10])=square;
|
|
|
|
|
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 = SRAM[0xC4]|(SRAM[0xC5]<<8)|(SRAM[0xC6]<<16)|(SRAM[0xC7]<<24);
|
|
|
|
|
int32 xpos = SRAM[0xC8]|(SRAM[0xC9]<<8)|(SRAM[0xCA]<<16)|(SRAM[0xCB]<<24);
|
|
|
|
|
uint16 rot = SRAM[0xCC]|(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
|
|
|
|
|
SRAM[0xD2]=0xFF;
|
|
|
|
|
SRAM[0xD3]=0xFF;
|
|
|
|
|
SRAM[0xDA]=0;
|
|
|
|
|
SRAM[0xDB]=0;
|
|
|
|
|
|
|
|
|
|
//Grab the target angle
|
|
|
|
|
ST010_OP01(dy,dx,&a1,&b1,&c1,&o1);
|
|
|
|
|
|
|
|
|
|
//Check for wrapping
|
|
|
|
|
if (abs(o1-rot)>0x8000)
|
|
|
|
|
{
|
|
|
|
|
o1+=0x8000;
|
|
|
|
|
rot+=0x8000;
|
|
|
|
|
wrap=true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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_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;
|
|
|
|
|
|
|
|
|
|
SRAM[0x00C0]=(uint8)(ypos_max);
|
|
|
|
|
SRAM[0x00C1]=(uint8)(ypos_max >> 8);
|
|
|
|
|
SRAM[0x00C2]=(uint8)(xpos_max);
|
|
|
|
|
SRAM[0x00C3]=(uint8)(xpos_max >> 8);
|
|
|
|
|
SRAM[0x00C4]=(uint8)(ypos);
|
|
|
|
|
SRAM[0x00C5]=(uint8)(ypos >> 8);
|
|
|
|
|
SRAM[0x00C6]=(uint8)(ypos >> 16);
|
|
|
|
|
SRAM[0x00C7]=(uint8)(ypos >> 24);
|
|
|
|
|
SRAM[0x00C8]=(uint8)(xpos);
|
|
|
|
|
SRAM[0x00C9]=(uint8)(xpos >> 8);
|
|
|
|
|
SRAM[0x00CA]=(uint8)(xpos >> 16);
|
|
|
|
|
SRAM[0x00CB]=(uint8)(xpos >> 24);
|
|
|
|
|
SRAM[0x00CC]=(uint8)(rot);
|
|
|
|
|
SRAM[0x00CD]=(uint8)(rot >> 8);
|
|
|
|
|
SRAM[0x00D4]=(uint8)(speed);
|
|
|
|
|
SRAM[0x00D5]=(uint8)(speed >> 8);
|
|
|
|
|
SRAM[0x00DC]=(uint8)(flags);
|
|
|
|
|
SRAM[0x00DD]=(uint8)(flags >> 8);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
16-bit Multiplication
|
|
|
|
|
|
|
|
|
|
Input
|
|
|
|
|
0x0000-0x0001 : Multiplcand (signed)
|
|
|
|
|
0x0002-0x0003 : Multiplier (signed)
|
|
|
|
|
Output
|
|
|
|
|
0x0010-0x0013 : Product (signed)
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
case 0x06:
|
|
|
|
|
{
|
|
|
|
|
ST010_Multiply(*(short*)&SRAM[0x0000], *(short*)&SRAM[0x0002], (int *)SRAM+10);
|
|
|
|
|
}
|
|
|
|
|
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);
|
|
|
|
|
|
|
|
|
|
int32 line;
|
|
|
|
|
for (line = 0; line < 176; line++)
|
|
|
|
|
{
|
|
|
|
|
//Calculate Mode 7 Matrix A/D data
|
|
|
|
|
data = ST010_M7Scale[line] * ST010_Cos(Theta) >> 15;
|
|
|
|
|
SRAM[0x00f0 + offset]=(uint8)(data);
|
|
|
|
|
SRAM[0x00f1 + offset]=(uint8)(data >> 8);
|
|
|
|
|
SRAM[0x0510 + offset]=(uint8)(data);
|
|
|
|
|
SRAM[0x0511 + offset]=(uint8)(data >> 8);
|
|
|
|
|
|
|
|
|
|
//Calculate Mode 7 Matrix B/C data
|
|
|
|
|
data = ST010_M7Scale[line] * ST010_Sin(Theta) >> 15;
|
|
|
|
|
SRAM[0x0250 + offset]=(uint8)(data);
|
|
|
|
|
SRAM[0x0251 + offset]=(uint8)(data >> 8);
|
|
|
|
|
|
|
|
|
|
if (data) { data = ~data; }
|
|
|
|
|
|
|
|
|
|
SRAM[0x03b0 + offset]=(uint8)(data);
|
|
|
|
|
SRAM[0x03b1 + offset]=(uint8)(data >> 8);
|
|
|
|
|
|
|
|
|
|
offset += 2;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//Shift Angle for use with Lookup table
|
|
|
|
|
SRAM[0x00] = SRAM[0x01];
|
|
|
|
|
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:
|
|
|
|
|
{
|
|
|
|
|
ST010_Rotate(*(short*)&SRAM[0x0004], *(short*)&SRAM[0x0000], *(short*)&SRAM[0x0002], (short *)SRAM+10, (short *)SRAM+12);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default: break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//Lower signal: op processed
|
|
|
|
|
SRAM[0x20]=0;
|
|
|
|
|
SRAM[0x21]=0;
|
|
|
|
|
}
|
n-a-c-h