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vbagx/source/vba/gba/Cheats.cpp

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// VisualBoyAdvance - Nintendo Gameboy/GameboyAdvance (TM) emulator.
// Copyright (C) 1999-2003 Forgotten
// Copyright (C) 2005-2006 Forgotten and the VBA development team
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or(at your option)
// any later version.
//
// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include "agb/GBA.h"
#include "agb/GBAinline.h"
#include "Cheats.h"
#include "Globals.h"
#include "NLS.h"
#include "Util.h"
/**
* Gameshark code types: (based on AR v1.0)
*
* NNNNNNNN 001DC0DE - ID code for the game (game 4 character name) from ROM
* DEADFACE XXXXXXXX - changes decryption seeds // Not supported by VBA.
* 0AAAAAAA 000000YY - 8-bit constant write
* 1AAAAAAA 0000YYYY - 16-bit constant write
* 2AAAAAAA YYYYYYYY - 32-bit constant write
* 30XXAAAA YYYYYYYY - 32bit Group Write, 8/16/32bit Sub/Add (depending on the XX value).
* 6AAAAAAA Z000YYYY - 16-bit ROM Patch (address >> 1). Z selects the Rom Patching register.
* - AR v1/2 hardware only supports Z=0.
* - AR v3 hardware should support Z=0,1,2 or 3.
* 8A1AAAAA 000000YY - 8-bit button write
* 8A2AAAAA 0000YYYY - 16-bit button write
* 8A4AAAAA YYYYYYYY - 32-bit button write // BUGGY ! Only writes 00000000 on the AR v1.0.
* 80F00000 0000YYYY - button slow motion
* DAAAAAAA 00Z0YYYY - Z = 0 : if 16-bit value at address != YYYY skip next line
* - Z = 1 : if 16-bit value at address == YYYY skip next line
* - Z = 2 : if 16-bit value at address > YYYY (Unsigned) skip next line
* - Z = 3 : if 16-bit value at address < YYYY (Unsigned) skip next line
* E0CCYYYY ZAAAAAAA - Z = 0 : if 16-bit value at address != YYYY skip CC lines
* - Z = 1 : if 16-bit value at address == YYYY skip CC lines
* - Z = 2 : if 16-bit value at address > YYYY (Unsigned) skip CC lines
* - Z = 3 : if 16-bit value at address < YYYY (Unsigned) skip CC lines
* FAAAAAAA 0000YYYY - Master code function
*
*
*
* CodeBreaker codes types: (based on the CBA clone "Cheatcode S" v1.1)
*
* 0000AAAA 000Y - Game CRC (Y are flags: 8 - CRC, 2 - DI)
* 1AAAAAAA YYYY - Master Code function (store address at ((YYYY << 0x16)
* + 0x08000100))
* 2AAAAAAA YYYY - 16-bit or
* 3AAAAAAA YYYY - 8-bit constant write
* 4AAAAAAA YYYY - Slide code
* XXXXCCCC IIII (C is count and I is address increment, X is value incr.)
* 5AAAAAAA CCCC - Super code (Write bytes to address, 2*CCCC is count)
* BBBBBBBB BBBB
* 6AAAAAAA YYYY - 16-bit and
* 7AAAAAAA YYYY - if address contains 16-bit value enable next code
* 8AAAAAAA YYYY - 16-bit constant write
* 9AAAAAAA YYYY - change decryption (when first code only?)
* AAAAAAAA YYYY - if address does not contain 16-bit value enable next code
* BAAAAAAA YYYY - if 16-bit value at address <= YYYY skip next code
* CAAAAAAA YYYY - if 16-bit value at address >= YYYY skip next code
* D00000X0 YYYY - if button keys ... enable next code (else skip next code)
* EAAAAAAA YYYY - increase 16/32bit value stored in address
* FAAAAAAA YYYY - if 16-bit value at address AND YYYY = 0 then skip next code
**/
#define UNKNOWN_CODE -1
#define INT_8_BIT_WRITE 0
#define INT_16_BIT_WRITE 1
#define INT_32_BIT_WRITE 2
#define GSA_16_BIT_ROM_PATCH 3
#define GSA_8_BIT_GS_WRITE 4
#define GSA_16_BIT_GS_WRITE 5
#define GSA_32_BIT_GS_WRITE 6
#define CBA_IF_KEYS_PRESSED 7
#define CBA_IF_TRUE 8
#define CBA_SLIDE_CODE 9
#define CBA_IF_FALSE 10
#define CBA_AND 11
#define GSA_8_BIT_GS_WRITE2 12
#define GSA_16_BIT_GS_WRITE2 13
#define GSA_32_BIT_GS_WRITE2 14
#define GSA_16_BIT_ROM_PATCH2C 15
#define GSA_8_BIT_SLIDE 16
#define GSA_16_BIT_SLIDE 17
#define GSA_32_BIT_SLIDE 18
#define GSA_8_BIT_IF_TRUE 19
#define GSA_32_BIT_IF_TRUE 20
#define GSA_8_BIT_IF_FALSE 21
#define GSA_32_BIT_IF_FALSE 22
#define GSA_8_BIT_FILL 23
#define GSA_16_BIT_FILL 24
#define GSA_8_BIT_IF_TRUE2 25
#define GSA_16_BIT_IF_TRUE2 26
#define GSA_32_BIT_IF_TRUE2 27
#define GSA_8_BIT_IF_FALSE2 28
#define GSA_16_BIT_IF_FALSE2 29
#define GSA_32_BIT_IF_FALSE2 30
#define GSA_SLOWDOWN 31
#define CBA_ADD 32
#define CBA_OR 33
#define CBA_LT 34
#define CBA_GT 35
#define CBA_SUPER 36
#define GSA_8_BIT_POINTER 37
#define GSA_16_BIT_POINTER 38
#define GSA_32_BIT_POINTER 39
#define GSA_8_BIT_ADD 40
#define GSA_16_BIT_ADD 41
#define GSA_32_BIT_ADD 42
#define GSA_8_BIT_IF_LOWER_U 43
#define GSA_16_BIT_IF_LOWER_U 44
#define GSA_32_BIT_IF_LOWER_U 45
#define GSA_8_BIT_IF_HIGHER_U 46
#define GSA_16_BIT_IF_HIGHER_U 47
#define GSA_32_BIT_IF_HIGHER_U 48
#define GSA_8_BIT_IF_AND 49
#define GSA_16_BIT_IF_AND 50
#define GSA_32_BIT_IF_AND 51
#define GSA_8_BIT_IF_LOWER_U2 52
#define GSA_16_BIT_IF_LOWER_U2 53
#define GSA_32_BIT_IF_LOWER_U2 54
#define GSA_8_BIT_IF_HIGHER_U2 55
#define GSA_16_BIT_IF_HIGHER_U2 56
#define GSA_32_BIT_IF_HIGHER_U2 57
#define GSA_8_BIT_IF_AND2 58
#define GSA_16_BIT_IF_AND2 59
#define GSA_32_BIT_IF_AND2 60
#define GSA_ALWAYS 61
#define GSA_ALWAYS2 62
#define GSA_8_BIT_IF_LOWER_S 63
#define GSA_16_BIT_IF_LOWER_S 64
#define GSA_32_BIT_IF_LOWER_S 65
#define GSA_8_BIT_IF_HIGHER_S 66
#define GSA_16_BIT_IF_HIGHER_S 67
#define GSA_32_BIT_IF_HIGHER_S 68
#define GSA_8_BIT_IF_LOWER_S2 69
#define GSA_16_BIT_IF_LOWER_S2 70
#define GSA_32_BIT_IF_LOWER_S2 71
#define GSA_8_BIT_IF_HIGHER_S2 72
#define GSA_16_BIT_IF_HIGHER_S2 73
#define GSA_32_BIT_IF_HIGHER_S2 74
#define GSA_16_BIT_WRITE_IOREGS 75
#define GSA_32_BIT_WRITE_IOREGS 76
#define GSA_CODES_ON 77
#define GSA_8_BIT_IF_TRUE3 78
#define GSA_16_BIT_IF_TRUE3 79
#define GSA_32_BIT_IF_TRUE3 80
#define GSA_8_BIT_IF_FALSE3 81
#define GSA_16_BIT_IF_FALSE3 82
#define GSA_32_BIT_IF_FALSE3 83
#define GSA_8_BIT_IF_LOWER_S3 84
#define GSA_16_BIT_IF_LOWER_S3 85
#define GSA_32_BIT_IF_LOWER_S3 86
#define GSA_8_BIT_IF_HIGHER_S3 87
#define GSA_16_BIT_IF_HIGHER_S3 88
#define GSA_32_BIT_IF_HIGHER_S3 89
#define GSA_8_BIT_IF_LOWER_U3 90
#define GSA_16_BIT_IF_LOWER_U3 91
#define GSA_32_BIT_IF_LOWER_U3 92
#define GSA_8_BIT_IF_HIGHER_U3 93
#define GSA_16_BIT_IF_HIGHER_U3 94
#define GSA_32_BIT_IF_HIGHER_U3 95
#define GSA_8_BIT_IF_AND3 96
#define GSA_16_BIT_IF_AND3 97
#define GSA_32_BIT_IF_AND3 98
#define GSA_ALWAYS3 99
#define GSA_16_BIT_ROM_PATCH2D 100
#define GSA_16_BIT_ROM_PATCH2E 101
#define GSA_16_BIT_ROM_PATCH2F 102
#define GSA_GROUP_WRITE 103
#define GSA_32_BIT_ADD2 104
#define GSA_32_BIT_SUB2 105
#define GSA_16_BIT_IF_LOWER_OR_EQ_U 106
#define GSA_16_BIT_IF_HIGHER_OR_EQ_U 107
#define GSA_16_BIT_MIF_TRUE 108
#define GSA_16_BIT_MIF_FALSE 109
#define GSA_16_BIT_MIF_LOWER_OR_EQ_U 110
#define GSA_16_BIT_MIF_HIGHER_OR_EQ_U 111
#define MASTER_CODE 112
#define CHEATS_16_BIT_WRITE 114
#define CHEATS_32_BIT_WRITE 115
CheatsData cheatsList[100];
int cheatsNumber = 0;
u32 rompatch2addr [4];
u16 rompatch2val [4];
u16 rompatch2oldval [4];
u8 cheatsCBASeedBuffer[0x30];
u32 cheatsCBASeed[4];
u32 cheatsCBATemporaryValue = 0;
u16 cheatsCBATable[256];
bool cheatsCBATableGenerated = false;
u16 super = 0;
extern u32 mastercode;
u8 cheatsCBACurrentSeed[12] = {
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
u32 seeds_v1[4];
u32 seeds_v3[4];
u32 seed_gen(u8 upper, u8 seed, u8 *deadtable1, u8 *deadtable2);
//seed tables for AR v1
u8 v1_deadtable1[256] = {
0x31, 0x1C, 0x23, 0xE5, 0x89, 0x8E, 0xA1, 0x37, 0x74, 0x6D, 0x67, 0xFC, 0x1F, 0xC0, 0xB1, 0x94,
0x3B, 0x05, 0x56, 0x86, 0x00, 0x24, 0xF0, 0x17, 0x72, 0xA2, 0x3D, 0x1B, 0xE3, 0x17, 0xC5, 0x0B,
0xB9, 0xE2, 0xBD, 0x58, 0x71, 0x1B, 0x2C, 0xFF, 0xE4, 0xC9, 0x4C, 0x5E, 0xC9, 0x55, 0x33, 0x45,
0x7C, 0x3F, 0xB2, 0x51, 0xFE, 0x10, 0x7E, 0x75, 0x3C, 0x90, 0x8D, 0xDA, 0x94, 0x38, 0xC3, 0xE9,
0x95, 0xEA, 0xCE, 0xA6, 0x06, 0xE0, 0x4F, 0x3F, 0x2A, 0xE3, 0x3A, 0xE4, 0x43, 0xBD, 0x7F, 0xDA,
0x55, 0xF0, 0xEA, 0xCB, 0x2C, 0xA8, 0x47, 0x61, 0xA0, 0xEF, 0xCB, 0x13, 0x18, 0x20, 0xAF, 0x3E,
0x4D, 0x9E, 0x1E, 0x77, 0x51, 0xC5, 0x51, 0x20, 0xCF, 0x21, 0xF9, 0x39, 0x94, 0xDE, 0xDD, 0x79,
0x4E, 0x80, 0xC4, 0x9D, 0x94, 0xD5, 0x95, 0x01, 0x27, 0x27, 0xBD, 0x6D, 0x78, 0xB5, 0xD1, 0x31,
0x6A, 0x65, 0x74, 0x74, 0x58, 0xB3, 0x7C, 0xC9, 0x5A, 0xED, 0x50, 0x03, 0xC4, 0xA2, 0x94, 0x4B,
0xF0, 0x58, 0x09, 0x6F, 0x3E, 0x7D, 0xAE, 0x7D, 0x58, 0xA0, 0x2C, 0x91, 0xBB, 0xE1, 0x70, 0xEB,
0x73, 0xA6, 0x9A, 0x44, 0x25, 0x90, 0x16, 0x62, 0x53, 0xAE, 0x08, 0xEB, 0xDC, 0xF0, 0xEE, 0x77,
0xC2, 0xDE, 0x81, 0xE8, 0x30, 0x89, 0xDB, 0xFE, 0xBC, 0xC2, 0xDF, 0x26, 0xE9, 0x8B, 0xD6, 0x93,
0xF0, 0xCB, 0x56, 0x90, 0xC0, 0x46, 0x68, 0x15, 0x43, 0xCB, 0xE9, 0x98, 0xE3, 0xAF, 0x31, 0x25,
0x4D, 0x7B, 0xF3, 0xB1, 0x74, 0xE2, 0x64, 0xAC, 0xD9, 0xF6, 0xA0, 0xD5, 0x0B, 0x9B, 0x49, 0x52,
0x69, 0x3B, 0x71, 0x00, 0x2F, 0xBB, 0xBA, 0x08, 0xB1, 0xAE, 0xBB, 0xB3, 0xE1, 0xC9, 0xA6, 0x7F,
0x17, 0x97, 0x28, 0x72, 0x12, 0x6E, 0x91, 0xAE, 0x3A, 0xA2, 0x35, 0x46, 0x27, 0xF8, 0x12, 0x50
};
u8 v1_deadtable2[256] = {
0xD8, 0x65, 0x04, 0xC2, 0x65, 0xD5, 0xB0, 0x0C, 0xDF, 0x9D, 0xF0, 0xC3, 0x9A, 0x17, 0xC9, 0xA6,
0xE1, 0xAC, 0x0D, 0x14, 0x2F, 0x3C, 0x2C, 0x87, 0xA2, 0xBF, 0x4D, 0x5F, 0xAC, 0x2D, 0x9D, 0xE1,
0x0C, 0x9C, 0xE7, 0x7F, 0xFC, 0xA8, 0x66, 0x59, 0xAC, 0x18, 0xD7, 0x05, 0xF0, 0xBF, 0xD1, 0x8B,
0x35, 0x9F, 0x59, 0xB4, 0xBA, 0x55, 0xB2, 0x85, 0xFD, 0xB1, 0x72, 0x06, 0x73, 0xA4, 0xDB, 0x48,
0x7B, 0x5F, 0x67, 0xA5, 0x95, 0xB9, 0xA5, 0x4A, 0xCF, 0xD1, 0x44, 0xF3, 0x81, 0xF5, 0x6D, 0xF6,
0x3A, 0xC3, 0x57, 0x83, 0xFA, 0x8E, 0x15, 0x2A, 0xA2, 0x04, 0xB2, 0x9D, 0xA8, 0x0D, 0x7F, 0xB8,
0x0F, 0xF6, 0xAC, 0xBE, 0x97, 0xCE, 0x16, 0xE6, 0x31, 0x10, 0x60, 0x16, 0xB5, 0x83, 0x45, 0xEE,
0xD7, 0x5F, 0x2C, 0x08, 0x58, 0xB1, 0xFD, 0x7E, 0x79, 0x00, 0x34, 0xAD, 0xB5, 0x31, 0x34, 0x39,
0xAF, 0xA8, 0xDD, 0x52, 0x6A, 0xB0, 0x60, 0x35, 0xB8, 0x1D, 0x52, 0xF5, 0xF5, 0x30, 0x00, 0x7B,
0xF4, 0xBA, 0x03, 0xCB, 0x3A, 0x84, 0x14, 0x8A, 0x6A, 0xEF, 0x21, 0xBD, 0x01, 0xD8, 0xA0, 0xD4,
0x43, 0xBE, 0x23, 0xE7, 0x76, 0x27, 0x2C, 0x3F, 0x4D, 0x3F, 0x43, 0x18, 0xA7, 0xC3, 0x47, 0xA5,
0x7A, 0x1D, 0x02, 0x55, 0x09, 0xD1, 0xFF, 0x55, 0x5E, 0x17, 0xA0, 0x56, 0xF4, 0xC9, 0x6B, 0x90,
0xB4, 0x80, 0xA5, 0x07, 0x22, 0xFB, 0x22, 0x0D, 0xD9, 0xC0, 0x5B, 0x08, 0x35, 0x05, 0xC1, 0x75,
0x4F, 0xD0, 0x51, 0x2D, 0x2E, 0x5E, 0x69, 0xE7, 0x3B, 0xC2, 0xDA, 0xFF, 0xF6, 0xCE, 0x3E, 0x76,
0xE8, 0x36, 0x8C, 0x39, 0xD8, 0xF3, 0xE9, 0xA6, 0x42, 0xE6, 0xC1, 0x4C, 0x05, 0xBE, 0x17, 0xF2,
0x5C, 0x1B, 0x19, 0xDB, 0x0F, 0xF3, 0xF8, 0x49, 0xEB, 0x36, 0xF6, 0x40, 0x6F, 0xAD, 0xC1, 0x8C
};
//seed tables for AR v3
u8 v3_deadtable1[256] = {
0xD0, 0xFF, 0xBA, 0xE5, 0xC1, 0xC7, 0xDB, 0x5B, 0x16, 0xE3, 0x6E, 0x26, 0x62, 0x31, 0x2E, 0x2A,
0xD1, 0xBB, 0x4A, 0xE6, 0xAE, 0x2F, 0x0A, 0x90, 0x29, 0x90, 0xB6, 0x67, 0x58, 0x2A, 0xB4, 0x45,
0x7B, 0xCB, 0xF0, 0x73, 0x84, 0x30, 0x81, 0xC2, 0xD7, 0xBE, 0x89, 0xD7, 0x4E, 0x73, 0x5C, 0xC7,
0x80, 0x1B, 0xE5, 0xE4, 0x43, 0xC7, 0x46, 0xD6, 0x6F, 0x7B, 0xBF, 0xED, 0xE5, 0x27, 0xD1, 0xB5,
0xD0, 0xD8, 0xA3, 0xCB, 0x2B, 0x30, 0xA4, 0xF0, 0x84, 0x14, 0x72, 0x5C, 0xFF, 0xA4, 0xFB, 0x54,
0x9D, 0x70, 0xE2, 0xFF, 0xBE, 0xE8, 0x24, 0x76, 0xE5, 0x15, 0xFB, 0x1A, 0xBC, 0x87, 0x02, 0x2A,
0x58, 0x8F, 0x9A, 0x95, 0xBD, 0xAE, 0x8D, 0x0C, 0xA5, 0x4C, 0xF2, 0x5C, 0x7D, 0xAD, 0x51, 0xFB,
0xB1, 0x22, 0x07, 0xE0, 0x29, 0x7C, 0xEB, 0x98, 0x14, 0xC6, 0x31, 0x97, 0xE4, 0x34, 0x8F, 0xCC,
0x99, 0x56, 0x9F, 0x78, 0x43, 0x91, 0x85, 0x3F, 0xC2, 0xD0, 0xD1, 0x80, 0xD1, 0x77, 0xA7, 0xE2,
0x43, 0x99, 0x1D, 0x2F, 0x8B, 0x6A, 0xE4, 0x66, 0x82, 0xF7, 0x2B, 0x0B, 0x65, 0x14, 0xC0, 0xC2,
0x1D, 0x96, 0x78, 0x1C, 0xC4, 0xC3, 0xD2, 0xB1, 0x64, 0x07, 0xD7, 0x6F, 0x02, 0xE9, 0x44, 0x31,
0xDB, 0x3C, 0xEB, 0x93, 0xED, 0x9A, 0x57, 0x05, 0xB9, 0x0E, 0xAF, 0x1F, 0x48, 0x11, 0xDC, 0x35,
0x6C, 0xB8, 0xEE, 0x2A, 0x48, 0x2B, 0xBC, 0x89, 0x12, 0x59, 0xCB, 0xD1, 0x18, 0xEA, 0x72, 0x11,
0x01, 0x75, 0x3B, 0xB5, 0x56, 0xF4, 0x8B, 0xA0, 0x41, 0x75, 0x86, 0x7B, 0x94, 0x12, 0x2D, 0x4C,
0x0C, 0x22, 0xC9, 0x4A, 0xD8, 0xB1, 0x8D, 0xF0, 0x55, 0x2E, 0x77, 0x50, 0x1C, 0x64, 0x77, 0xAA,
0x3E, 0xAC, 0xD3, 0x3D, 0xCE, 0x60, 0xCA, 0x5D, 0xA0, 0x92, 0x78, 0xC6, 0x51, 0xFE, 0xF9, 0x30
};
u8 v3_deadtable2[256] = {
0xAA, 0xAF, 0xF0, 0x72, 0x90, 0xF7, 0x71, 0x27, 0x06, 0x11, 0xEB, 0x9C, 0x37, 0x12, 0x72, 0xAA,
0x65, 0xBC, 0x0D, 0x4A, 0x76, 0xF6, 0x5C, 0xAA, 0xB0, 0x7A, 0x7D, 0x81, 0xC1, 0xCE, 0x2F, 0x9F,
0x02, 0x75, 0x38, 0xC8, 0xFC, 0x66, 0x05, 0xC2, 0x2C, 0xBD, 0x91, 0xAD, 0x03, 0xB1, 0x88, 0x93,
0x31, 0xC6, 0xAB, 0x40, 0x23, 0x43, 0x76, 0x54, 0xCA, 0xE7, 0x00, 0x96, 0x9F, 0xD8, 0x24, 0x8B,
0xE4, 0xDC, 0xDE, 0x48, 0x2C, 0xCB, 0xF7, 0x84, 0x1D, 0x45, 0xE5, 0xF1, 0x75, 0xA0, 0xED, 0xCD,
0x4B, 0x24, 0x8A, 0xB3, 0x98, 0x7B, 0x12, 0xB8, 0xF5, 0x63, 0x97, 0xB3, 0xA6, 0xA6, 0x0B, 0xDC,
0xD8, 0x4C, 0xA8, 0x99, 0x27, 0x0F, 0x8F, 0x94, 0x63, 0x0F, 0xB0, 0x11, 0x94, 0xC7, 0xE9, 0x7F,
0x3B, 0x40, 0x72, 0x4C, 0xDB, 0x84, 0x78, 0xFE, 0xB8, 0x56, 0x08, 0x80, 0xDF, 0x20, 0x2F, 0xB9,
0x66, 0x2D, 0x60, 0x63, 0xF5, 0x18, 0x15, 0x1B, 0x86, 0x85, 0xB9, 0xB4, 0x68, 0x0E, 0xC6, 0xD1,
0x8A, 0x81, 0x2B, 0xB3, 0xF6, 0x48, 0xF0, 0x4F, 0x9C, 0x28, 0x1C, 0xA4, 0x51, 0x2F, 0xD7, 0x4B,
0x17, 0xE7, 0xCC, 0x50, 0x9F, 0xD0, 0xD1, 0x40, 0x0C, 0x0D, 0xCA, 0x83, 0xFA, 0x5E, 0xCA, 0xEC,
0xBF, 0x4E, 0x7C, 0x8F, 0xF0, 0xAE, 0xC2, 0xD3, 0x28, 0x41, 0x9B, 0xC8, 0x04, 0xB9, 0x4A, 0xBA,
0x72, 0xE2, 0xB5, 0x06, 0x2C, 0x1E, 0x0B, 0x2C, 0x7F, 0x11, 0xA9, 0x26, 0x51, 0x9D, 0x3F, 0xF8,
0x62, 0x11, 0x2E, 0x89, 0xD2, 0x9D, 0x35, 0xB1, 0xE4, 0x0A, 0x4D, 0x93, 0x01, 0xA7, 0xD1, 0x2D,
0x00, 0x87, 0xE2, 0x2D, 0xA4, 0xE9, 0x0A, 0x06, 0x66, 0xF8, 0x1F, 0x44, 0x75, 0xB5, 0x6B, 0x1C,
0xFC, 0x31, 0x09, 0x48, 0xA3, 0xFF, 0x92, 0x12, 0x58, 0xE9, 0xFA, 0xAE, 0x4F, 0xE2, 0xB4, 0xCC
};
#define debuggerReadMemory(addr) \
READ32LE((&map[(addr)>>24].address[(addr) & map[(addr)>>24].mask]))
#define debuggerReadHalfWord(addr) \
READ16LE((&map[(addr)>>24].address[(addr) & map[(addr)>>24].mask]))
#define debuggerReadByte(addr) \
map[(addr)>>24].address[(addr) & map[(addr)>>24].mask]
#define debuggerWriteMemory(addr, value) \
WRITE32LE(&map[(addr)>>24].address[(addr) & map[(addr)>>24].mask], value)
#define debuggerWriteHalfWord(addr, value) \
WRITE16LE(&map[(addr)>>24].address[(addr) & map[(addr)>>24].mask], value)
#define debuggerWriteByte(addr, value) \
map[(addr)>>24].address[(addr) & map[(addr)>>24].mask] = (value)
#define CHEAT_IS_HEX(a) ( ((a)>='A' && (a) <='F') || ((a) >='0' && (a) <= '9'))
#define CHEAT_PATCH_ROM_16BIT(a,v) \
WRITE16LE(((u16 *)&rom[(a) & 0x1ffffff]), v);
#define CHEAT_PATCH_ROM_32BIT(a,v) \
WRITE32LE(((u32 *)&rom[(a) & 0x1ffffff]), v);
static bool isMultilineWithData(int i)
{
// we consider it a multiline code if it has more than one line of data
// otherwise, it can still be considered a single code
// (Only CBA codes can be true multilines !!!)
if(i < cheatsNumber && i >= 0)
switch(cheatsList[i].size) {
case INT_8_BIT_WRITE:
case INT_16_BIT_WRITE:
case INT_32_BIT_WRITE:
case GSA_16_BIT_ROM_PATCH:
case GSA_8_BIT_GS_WRITE:
case GSA_16_BIT_GS_WRITE:
case GSA_32_BIT_GS_WRITE:
case CBA_AND:
case CBA_IF_KEYS_PRESSED:
case CBA_IF_TRUE:
case CBA_IF_FALSE:
case GSA_8_BIT_IF_TRUE:
case GSA_32_BIT_IF_TRUE:
case GSA_8_BIT_IF_FALSE:
case GSA_32_BIT_IF_FALSE:
case GSA_8_BIT_FILL:
case GSA_16_BIT_FILL:
case GSA_8_BIT_IF_TRUE2:
case GSA_16_BIT_IF_TRUE2:
case GSA_32_BIT_IF_TRUE2:
case GSA_8_BIT_IF_FALSE2:
case GSA_16_BIT_IF_FALSE2:
case GSA_32_BIT_IF_FALSE2:
case GSA_SLOWDOWN:
case CBA_ADD:
case CBA_OR:
case CBA_LT:
case CBA_GT:
case GSA_8_BIT_POINTER:
case GSA_16_BIT_POINTER:
case GSA_32_BIT_POINTER:
case GSA_8_BIT_ADD:
case GSA_16_BIT_ADD:
case GSA_32_BIT_ADD:
case GSA_8_BIT_IF_LOWER_U:
case GSA_16_BIT_IF_LOWER_U:
case GSA_32_BIT_IF_LOWER_U:
case GSA_8_BIT_IF_HIGHER_U:
case GSA_16_BIT_IF_HIGHER_U:
case GSA_32_BIT_IF_HIGHER_U:
case GSA_8_BIT_IF_AND:
case GSA_16_BIT_IF_AND:
case GSA_32_BIT_IF_AND:
case GSA_8_BIT_IF_LOWER_U2:
case GSA_16_BIT_IF_LOWER_U2:
case GSA_32_BIT_IF_LOWER_U2:
case GSA_8_BIT_IF_HIGHER_U2:
case GSA_16_BIT_IF_HIGHER_U2:
case GSA_32_BIT_IF_HIGHER_U2:
case GSA_8_BIT_IF_AND2:
case GSA_16_BIT_IF_AND2:
case GSA_32_BIT_IF_AND2:
case GSA_ALWAYS:
case GSA_ALWAYS2:
case GSA_8_BIT_IF_LOWER_S:
case GSA_16_BIT_IF_LOWER_S:
case GSA_32_BIT_IF_LOWER_S:
case GSA_8_BIT_IF_HIGHER_S:
case GSA_16_BIT_IF_HIGHER_S:
case GSA_32_BIT_IF_HIGHER_S:
case GSA_8_BIT_IF_LOWER_S2:
case GSA_16_BIT_IF_LOWER_S2:
case GSA_32_BIT_IF_LOWER_S2:
case GSA_8_BIT_IF_HIGHER_S2:
case GSA_16_BIT_IF_HIGHER_S2:
case GSA_32_BIT_IF_HIGHER_S2:
case GSA_16_BIT_WRITE_IOREGS:
case GSA_32_BIT_WRITE_IOREGS:
case GSA_CODES_ON:
case GSA_8_BIT_IF_TRUE3:
case GSA_16_BIT_IF_TRUE3:
case GSA_32_BIT_IF_TRUE3:
case GSA_8_BIT_IF_FALSE3:
case GSA_16_BIT_IF_FALSE3:
case GSA_32_BIT_IF_FALSE3:
case GSA_8_BIT_IF_LOWER_S3:
case GSA_16_BIT_IF_LOWER_S3:
case GSA_32_BIT_IF_LOWER_S3:
case GSA_8_BIT_IF_HIGHER_S3:
case GSA_16_BIT_IF_HIGHER_S3:
case GSA_32_BIT_IF_HIGHER_S3:
case GSA_8_BIT_IF_LOWER_U3:
case GSA_16_BIT_IF_LOWER_U3:
case GSA_32_BIT_IF_LOWER_U3:
case GSA_8_BIT_IF_HIGHER_U3:
case GSA_16_BIT_IF_HIGHER_U3:
case GSA_32_BIT_IF_HIGHER_U3:
case GSA_8_BIT_IF_AND3:
case GSA_16_BIT_IF_AND3:
case GSA_32_BIT_IF_AND3:
case GSA_ALWAYS3:
case GSA_8_BIT_GS_WRITE2:
case GSA_16_BIT_GS_WRITE2:
case GSA_32_BIT_GS_WRITE2:
case GSA_16_BIT_ROM_PATCH2C:
case GSA_16_BIT_ROM_PATCH2D:
case GSA_16_BIT_ROM_PATCH2E:
case GSA_16_BIT_ROM_PATCH2F:
case GSA_8_BIT_SLIDE:
case GSA_16_BIT_SLIDE:
case GSA_32_BIT_SLIDE:
case GSA_GROUP_WRITE:
case GSA_32_BIT_ADD2:
case GSA_32_BIT_SUB2:
case GSA_16_BIT_IF_LOWER_OR_EQ_U:
case GSA_16_BIT_IF_HIGHER_OR_EQ_U:
case GSA_16_BIT_MIF_TRUE:
case GSA_16_BIT_MIF_FALSE:
case GSA_16_BIT_MIF_LOWER_OR_EQ_U:
case GSA_16_BIT_MIF_HIGHER_OR_EQ_U:
case MASTER_CODE:
case CHEATS_16_BIT_WRITE:
case CHEATS_32_BIT_WRITE:
return false;
// the codes below have two lines of data
case CBA_SLIDE_CODE:
case CBA_SUPER:
return true;
}
return false;
}
static int getCodeLength(int num)
{
if(num >= cheatsNumber || num < 0)
return 1;
// this is for all the codes that are true multiline
switch(cheatsList[num].size) {
case INT_8_BIT_WRITE:
case INT_16_BIT_WRITE:
case INT_32_BIT_WRITE:
case GSA_16_BIT_ROM_PATCH:
case GSA_8_BIT_GS_WRITE:
case GSA_16_BIT_GS_WRITE:
case GSA_32_BIT_GS_WRITE:
case CBA_AND:
case GSA_8_BIT_FILL:
case GSA_16_BIT_FILL:
case GSA_SLOWDOWN:
case CBA_ADD:
case CBA_OR:
case GSA_8_BIT_POINTER:
case GSA_16_BIT_POINTER:
case GSA_32_BIT_POINTER:
case GSA_8_BIT_ADD:
case GSA_16_BIT_ADD:
case GSA_32_BIT_ADD:
case GSA_CODES_ON:
case GSA_8_BIT_IF_TRUE3:
case GSA_16_BIT_IF_TRUE3:
case GSA_32_BIT_IF_TRUE3:
case GSA_8_BIT_IF_FALSE3:
case GSA_16_BIT_IF_FALSE3:
case GSA_32_BIT_IF_FALSE3:
case GSA_8_BIT_IF_LOWER_S3:
case GSA_16_BIT_IF_LOWER_S3:
case GSA_32_BIT_IF_LOWER_S3:
case GSA_8_BIT_IF_HIGHER_S3:
case GSA_16_BIT_IF_HIGHER_S3:
case GSA_32_BIT_IF_HIGHER_S3:
case GSA_8_BIT_IF_LOWER_U3:
case GSA_16_BIT_IF_LOWER_U3:
case GSA_32_BIT_IF_LOWER_U3:
case GSA_8_BIT_IF_HIGHER_U3:
case GSA_16_BIT_IF_HIGHER_U3:
case GSA_32_BIT_IF_HIGHER_U3:
case GSA_8_BIT_IF_AND3:
case GSA_16_BIT_IF_AND3:
case GSA_32_BIT_IF_AND3:
case GSA_8_BIT_IF_LOWER_U:
case GSA_16_BIT_IF_LOWER_U:
case GSA_32_BIT_IF_LOWER_U:
case GSA_8_BIT_IF_HIGHER_U:
case GSA_16_BIT_IF_HIGHER_U:
case GSA_32_BIT_IF_HIGHER_U:
case GSA_8_BIT_IF_AND:
case GSA_16_BIT_IF_AND:
case GSA_32_BIT_IF_AND:
case GSA_ALWAYS:
case GSA_8_BIT_IF_LOWER_S:
case GSA_16_BIT_IF_LOWER_S:
case GSA_32_BIT_IF_LOWER_S:
case GSA_8_BIT_IF_HIGHER_S:
case GSA_16_BIT_IF_HIGHER_S:
case GSA_32_BIT_IF_HIGHER_S:
case GSA_16_BIT_WRITE_IOREGS:
case GSA_32_BIT_WRITE_IOREGS:
case GSA_8_BIT_GS_WRITE2:
case GSA_16_BIT_GS_WRITE2:
case GSA_32_BIT_GS_WRITE2:
case GSA_16_BIT_ROM_PATCH2C:
case GSA_16_BIT_ROM_PATCH2D:
case GSA_16_BIT_ROM_PATCH2E:
case GSA_16_BIT_ROM_PATCH2F:
case GSA_8_BIT_SLIDE:
case GSA_16_BIT_SLIDE:
case GSA_32_BIT_SLIDE:
case GSA_8_BIT_IF_TRUE:
case GSA_32_BIT_IF_TRUE:
case GSA_8_BIT_IF_FALSE:
case GSA_32_BIT_IF_FALSE:
case CBA_LT:
case CBA_GT:
case CBA_IF_TRUE:
case CBA_IF_FALSE:
case GSA_8_BIT_IF_TRUE2:
case GSA_16_BIT_IF_TRUE2:
case GSA_32_BIT_IF_TRUE2:
case GSA_8_BIT_IF_FALSE2:
case GSA_16_BIT_IF_FALSE2:
case GSA_32_BIT_IF_FALSE2:
case GSA_8_BIT_IF_LOWER_U2:
case GSA_16_BIT_IF_LOWER_U2:
case GSA_32_BIT_IF_LOWER_U2:
case GSA_8_BIT_IF_HIGHER_U2:
case GSA_16_BIT_IF_HIGHER_U2:
case GSA_32_BIT_IF_HIGHER_U2:
case GSA_8_BIT_IF_AND2:
case GSA_16_BIT_IF_AND2:
case GSA_32_BIT_IF_AND2:
case GSA_ALWAYS2:
case GSA_8_BIT_IF_LOWER_S2:
case GSA_16_BIT_IF_LOWER_S2:
case GSA_32_BIT_IF_LOWER_S2:
case GSA_8_BIT_IF_HIGHER_S2:
case GSA_16_BIT_IF_HIGHER_S2:
case GSA_32_BIT_IF_HIGHER_S2:
case GSA_GROUP_WRITE:
case GSA_32_BIT_ADD2:
case GSA_32_BIT_SUB2:
case GSA_16_BIT_IF_LOWER_OR_EQ_U:
case GSA_16_BIT_IF_HIGHER_OR_EQ_U:
case GSA_16_BIT_MIF_TRUE:
case GSA_16_BIT_MIF_FALSE:
case GSA_16_BIT_MIF_LOWER_OR_EQ_U:
case GSA_16_BIT_MIF_HIGHER_OR_EQ_U:
case MASTER_CODE:
case CHEATS_16_BIT_WRITE:
case CHEATS_32_BIT_WRITE:
case UNKNOWN_CODE:
return 1;
case CBA_IF_KEYS_PRESSED:
case CBA_SLIDE_CODE:
return 2;
case CBA_SUPER:
return ((((cheatsList[num].value-1) & 0xFFFF)/3) + 1);
}
return 1;
}
int cheatsCheckKeys(u32 keys, u32 extended)
{
bool onoff = true;
int ticks = 0;
int i;
mastercode = 0;
for (i = 0; i<4; i++)
if (rompatch2addr [i] != 0) {
CHEAT_PATCH_ROM_16BIT(rompatch2addr [i],rompatch2oldval [i]);
rompatch2addr [i] = 0;
}
for (i = 0; i < cheatsNumber; i++) {
if(!cheatsList[i].enabled) {
// make sure we skip other lines in this code
i += getCodeLength(i)-1;
continue;
}
switch(cheatsList[i].size) {
case GSA_CODES_ON:
onoff = true;
break;
case GSA_SLOWDOWN:
// check if button was pressed and released, if so toggle our state
if((cheatsList[i].status & 4) && !(extended & 4))
cheatsList[i].status ^= 1;
if(extended & 4)
cheatsList[i].status |= 4;
else
cheatsList[i].status &= ~4;
if(cheatsList[i].status & 1)
ticks += ((cheatsList[i].value & 0xFFFF) * 7);
break;
case GSA_8_BIT_SLIDE:
i++;
if(i < cheatsNumber) {
u32 addr = cheatsList[i-1].value;
u8 value = cheatsList[i].rawaddress;
int vinc = (cheatsList[i].value >> 24) & 255;
int count = (cheatsList[i].value >> 16) & 255;
int ainc = (cheatsList[i].value & 0xffff);
while(count > 0) {
CPUWriteByte(addr, value);
value += vinc;
addr += ainc;
count--;
}
}
break;
case GSA_16_BIT_SLIDE:
i++;
if(i < cheatsNumber) {
u32 addr = cheatsList[i-1].value;
u16 value = cheatsList[i].rawaddress;
int vinc = (cheatsList[i].value >> 24) & 255;
int count = (cheatsList[i].value >> 16) & 255;
int ainc = (cheatsList[i].value & 0xffff)*2;
while(count > 0) {
CPUWriteHalfWord(addr, value);
value += vinc;
addr += ainc;
count--;
}
}
break;
case GSA_32_BIT_SLIDE:
i++;
if(i < cheatsNumber) {
u32 addr = cheatsList[i-1].value;
u32 value = cheatsList[i].rawaddress;
int vinc = (cheatsList[i].value >> 24) & 255;
int count = (cheatsList[i].value >> 16) & 255;
int ainc = (cheatsList[i].value & 0xffff)*4;
while(count > 0) {
CPUWriteMemory(addr, value);
value += vinc;
addr += ainc;
count--;
}
}
break;
case GSA_8_BIT_GS_WRITE2:
i++;
if(i < cheatsNumber) {
if(extended & 4) {
CPUWriteByte(cheatsList[i-1].value, cheatsList[i].address);
}
}
break;
case GSA_16_BIT_GS_WRITE2:
i++;
if(i < cheatsNumber) {
if(extended & 4) {
CPUWriteHalfWord(cheatsList[i-1].value, cheatsList[i].address);
}
}
break;
case GSA_32_BIT_GS_WRITE2:
i++;
if(i < cheatsNumber) {
if(extended & 4) {
CPUWriteMemory(cheatsList[i-1].value, cheatsList[i].address);
}
}
break;
case GSA_16_BIT_ROM_PATCH:
if((cheatsList[i].status & 1) == 0) {
if(CPUReadHalfWord(cheatsList[i].address) != cheatsList[i].value) {
cheatsList[i].oldValue = CPUReadHalfWord(cheatsList[i].address);
cheatsList[i].status |= 1;
CHEAT_PATCH_ROM_16BIT(cheatsList[i].address, cheatsList[i].value);
}
}
break;
case GSA_16_BIT_ROM_PATCH2C:
i++;
if(i < cheatsNumber) {
rompatch2addr [0] = ((cheatsList[i-1].value & 0x00FFFFFF) << 1) + 0x8000000;
rompatch2oldval [0] = CPUReadHalfWord(rompatch2addr [0]);
rompatch2val [0] = cheatsList[i].rawaddress & 0xFFFF;
}
break;
case GSA_16_BIT_ROM_PATCH2D:
i++;
if(i < cheatsNumber) {
rompatch2addr [1] = ((cheatsList[i-1].value & 0x00FFFFFF) << 1) + 0x8000000;
rompatch2oldval [1] = CPUReadHalfWord(rompatch2addr [1]);
rompatch2val [1] = cheatsList[i].rawaddress & 0xFFFF;
}
break;
case GSA_16_BIT_ROM_PATCH2E:
i++;
if(i < cheatsNumber) {
rompatch2addr [2] = ((cheatsList[i-1].value & 0x00FFFFFF) << 1) + 0x8000000;
rompatch2oldval [2] = CPUReadHalfWord(rompatch2addr [2]);
rompatch2val [2] = cheatsList[i].rawaddress & 0xFFFF;
}
break;
case GSA_16_BIT_ROM_PATCH2F:
i++;
if(i < cheatsNumber) {
rompatch2addr [3] = ((cheatsList[i-1].value & 0x00FFFFFF) << 1) + 0x8000000;
rompatch2oldval [3] = CPUReadHalfWord(rompatch2addr [3]);
rompatch2val [3] = cheatsList[i].rawaddress & 0xFFFF;
}
break;
case MASTER_CODE:
mastercode = cheatsList[i].address;
break;
}
if (onoff) {
switch(cheatsList[i].size) {
case INT_8_BIT_WRITE:
CPUWriteByte(cheatsList[i].address, cheatsList[i].value);
break;
case INT_16_BIT_WRITE:
CPUWriteHalfWord(cheatsList[i].address, cheatsList[i].value);
break;
case INT_32_BIT_WRITE:
CPUWriteMemory(cheatsList[i].address, cheatsList[i].value);
break;
case GSA_8_BIT_GS_WRITE:
if(extended & 4) {
CPUWriteByte(cheatsList[i].address, cheatsList[i].value);
}
break;
case GSA_16_BIT_GS_WRITE:
if(extended & 4) {
CPUWriteHalfWord(cheatsList[i].address, cheatsList[i].value);
}
break;
case GSA_32_BIT_GS_WRITE:
if(extended & 4) {
CPUWriteMemory(cheatsList[i].address, cheatsList[i].value);
}
break;
case CBA_IF_KEYS_PRESSED:
{
u16 value = cheatsList[i].value;
u32 addr = cheatsList[i].address;
if((addr & 0xF0) == 0x20) {
if((keys & value) == 0) {
i++;
}
} else if((addr & 0xF0) == 0x10) {
if((keys & value) == value) {
i++;
}
} else if((addr & 0xF0) == 0x00) {
if(((~keys) & 0x3FF) == value) {
i++;
}
}
}
break;
case CBA_IF_TRUE:
if(CPUReadHalfWord(cheatsList[i].address) != cheatsList[i].value) {
i++;
}
break;
case CBA_SLIDE_CODE:
{
u32 address = cheatsList[i].address;
u16 value = cheatsList[i].value;
i++;
if(i < cheatsNumber) {
int count = ((cheatsList[i].address - 1) & 0xFFFF);
u16 vinc = (cheatsList[i].address >> 16) & 0xFFFF;
int inc = cheatsList[i].value;
for(int x = 0; x <= count ; x++) {
CPUWriteHalfWord(address, value);
address += inc;
value += vinc;
}
}
}
break;
case CBA_IF_FALSE:
if(CPUReadHalfWord(cheatsList[i].address) == cheatsList[i].value){
i++;
}
break;
case CBA_AND:
CPUWriteHalfWord(cheatsList[i].address,
CPUReadHalfWord(cheatsList[i].address) &
cheatsList[i].value);
break;
case GSA_8_BIT_IF_TRUE:
if(CPUReadByte(cheatsList[i].address) != cheatsList[i].value) {
i++;
}
break;
case GSA_32_BIT_IF_TRUE:
if(CPUReadMemory(cheatsList[i].address) != cheatsList[i].value) {
i++;
}
break;
case GSA_8_BIT_IF_FALSE:
if(CPUReadByte(cheatsList[i].address) == cheatsList[i].value) {
i++;
}
break;
case GSA_32_BIT_IF_FALSE:
if(CPUReadMemory(cheatsList[i].address) == cheatsList[i].value) {
i++;
}
break;
case GSA_8_BIT_FILL:
{
u32 addr = cheatsList[i].address;
u8 v = cheatsList[i].value & 0xff;
u32 end = addr + (cheatsList[i].value >> 8);
do {
CPUWriteByte(addr, v);
addr++;
} while (addr <= end);
}
break;
case GSA_16_BIT_FILL:
{
u32 addr = cheatsList[i].address;
u16 v = cheatsList[i].value & 0xffff;
u32 end = addr + ((cheatsList[i].value >> 16) << 1);
do {
CPUWriteHalfWord(addr, v);
addr+=2;
} while (addr <= end);
}
break;
case GSA_8_BIT_IF_TRUE2:
if(CPUReadByte(cheatsList[i].address) != cheatsList[i].value) {
i+=2;
}
break;
case GSA_16_BIT_IF_TRUE2:
if(CPUReadHalfWord(cheatsList[i].address) != cheatsList[i].value) {
i+=2;
}
break;
case GSA_32_BIT_IF_TRUE2:
if(CPUReadMemory(cheatsList[i].address) != cheatsList[i].value) {
i+=2;
}
break;
case GSA_8_BIT_IF_FALSE2:
if(CPUReadByte(cheatsList[i].address) == cheatsList[i].value) {
i+=2;
}
break;
case GSA_16_BIT_IF_FALSE2:
if(CPUReadHalfWord(cheatsList[i].address) == cheatsList[i].value) {
i+=2;
}
break;
case GSA_32_BIT_IF_FALSE2:
if(CPUReadMemory(cheatsList[i].address) == cheatsList[i].value) {
i+=2;
}
break;
case CBA_ADD:
if ((cheatsList[i].address & 1) == 0) {
CPUWriteHalfWord(cheatsList[i].address,
CPUReadHalfWord(cheatsList[i].address) +
cheatsList[i].value);
} else {
CPUWriteMemory(cheatsList[i].address & 0x0FFFFFFE,
CPUReadMemory(cheatsList[i].address & 0x0FFFFFFE) +
cheatsList[i].value);
}
break;
case CBA_OR:
CPUWriteHalfWord(cheatsList[i].address,
CPUReadHalfWord(cheatsList[i].address) |
cheatsList[i].value);
break;
case CBA_GT:
if (!(CPUReadHalfWord(cheatsList[i].address) > cheatsList[i].value)){
i++;
}
break;
case CBA_LT:
if (!(CPUReadHalfWord(cheatsList[i].address) < cheatsList[i].value)){
i++;
}
break;
case CBA_SUPER:
{
int count = 2*((cheatsList[i].value -1) & 0xFFFF)+1;
u32 address = cheatsList[i].address;
for(int x = 0; x <= count; x++) {
u8 b;
int res = x % 6;
if (res==0)
i++;
if(res < 4)
b = (cheatsList[i].address >> (24-8*res)) & 0xFF;
else
b = (cheatsList[i].value >> (8 - 8*(res-4))) & 0xFF;
CPUWriteByte(address, b);
address++;
}
}
break;
case GSA_8_BIT_POINTER :
if ((CPUReadMemory(cheatsList[i].address)>=0x02000000) && (CPUReadMemory(cheatsList[i].address)<0x02040000) ||
(CPUReadMemory(cheatsList[i].address)>=0x03000000) && (CPUReadMemory(cheatsList[i].address)<0x03008000))
{
CPUWriteByte(CPUReadMemory(cheatsList[i].address)+((cheatsList[i].value & 0xFFFFFF00) >> 8),
cheatsList[i].value & 0xFF);
}
break;
case GSA_16_BIT_POINTER :
if ((CPUReadMemory(cheatsList[i].address)>=0x02000000) && (CPUReadMemory(cheatsList[i].address)<0x02040000) ||
(CPUReadMemory(cheatsList[i].address)>=0x03000000) && (CPUReadMemory(cheatsList[i].address)<0x03008000))
{
CPUWriteHalfWord(CPUReadMemory(cheatsList[i].address)+((cheatsList[i].value & 0xFFFF0000) >> 15),
cheatsList[i].value & 0xFFFF);
}
break;
case GSA_32_BIT_POINTER :
if ((CPUReadMemory(cheatsList[i].address)>=0x02000000) && (CPUReadMemory(cheatsList[i].address)<0x02040000) ||
(CPUReadMemory(cheatsList[i].address)>=0x03000000) && (CPUReadMemory(cheatsList[i].address)<0x03008000))
{
CPUWriteMemory(CPUReadMemory(cheatsList[i].address),
cheatsList[i].value);
}
break;
case GSA_8_BIT_ADD :
CPUWriteByte(cheatsList[i].address,
(cheatsList[i].value & 0xFF) + CPUReadMemory(cheatsList[i].address) & 0xFF);
break;
case GSA_16_BIT_ADD :
CPUWriteHalfWord(cheatsList[i].address,
(cheatsList[i].value & 0xFFFF) + CPUReadMemory(cheatsList[i].address) & 0xFFFF);
break;
case GSA_32_BIT_ADD :
CPUWriteMemory(cheatsList[i].address ,
cheatsList[i].value + CPUReadMemory(cheatsList[i].address) & 0xFFFFFFFF);
break;
case GSA_8_BIT_IF_LOWER_U:
if (!(CPUReadByte(cheatsList[i].address) < (cheatsList[i].value & 0xFF))) {
i++;
}
break;
case GSA_16_BIT_IF_LOWER_U:
if (!(CPUReadHalfWord(cheatsList[i].address) < (cheatsList[i].value & 0xFFFF))) {
i++;
}
break;
case GSA_32_BIT_IF_LOWER_U:
if (!(CPUReadMemory(cheatsList[i].address) < cheatsList[i].value)) {
i++;
}
break;
case GSA_8_BIT_IF_HIGHER_U:
if (!(CPUReadByte(cheatsList[i].address) > (cheatsList[i].value & 0xFF))) {
i++;
}
break;
case GSA_16_BIT_IF_HIGHER_U:
if (!(CPUReadHalfWord(cheatsList[i].address) > (cheatsList[i].value & 0xFFFF))) {
i++;
}
break;
case GSA_32_BIT_IF_HIGHER_U:
if (!(CPUReadMemory(cheatsList[i].address) > cheatsList[i].value)) {
i++;
}
break;
case GSA_8_BIT_IF_AND:
if (!(CPUReadByte(cheatsList[i].address) & (cheatsList[i].value & 0xFF))) {
i++;
}
break;
case GSA_16_BIT_IF_AND:
if (!(CPUReadHalfWord(cheatsList[i].address) & (cheatsList[i].value & 0xFFFF))) {
i++;
}
break;
case GSA_32_BIT_IF_AND:
if (!(CPUReadMemory(cheatsList[i].address) & cheatsList[i].value)) {
i++;
}
break;
case GSA_8_BIT_IF_LOWER_U2:
if (!(CPUReadByte(cheatsList[i].address) < (cheatsList[i].value & 0xFF))) {
i+=2;
}
break;
case GSA_16_BIT_IF_LOWER_U2:
if (!(CPUReadHalfWord(cheatsList[i].address) < (cheatsList[i].value & 0xFFFF))) {
i+=2;
}
break;
case GSA_32_BIT_IF_LOWER_U2:
if (!(CPUReadMemory(cheatsList[i].address) < cheatsList[i].value)) {
i+=2;
}
break;
case GSA_8_BIT_IF_HIGHER_U2:
if (!(CPUReadByte(cheatsList[i].address) > (cheatsList[i].value & 0xFF))) {
i+=2;
}
break;
case GSA_16_BIT_IF_HIGHER_U2:
if (!(CPUReadHalfWord(cheatsList[i].address) > (cheatsList[i].value & 0xFFFF))) {
i+=2;
}
break;
case GSA_32_BIT_IF_HIGHER_U2:
if (!(CPUReadMemory(cheatsList[i].address) > cheatsList[i].value)) {
i+=2;
}
break;
case GSA_8_BIT_IF_AND2:
if (!(CPUReadByte(cheatsList[i].address) & (cheatsList[i].value & 0xFF))) {
i+=2;
}
break;
case GSA_16_BIT_IF_AND2:
if (!(CPUReadHalfWord(cheatsList[i].address) & (cheatsList[i].value & 0xFFFF))) {
i+=2;
}
break;
case GSA_32_BIT_IF_AND2:
if (!(CPUReadMemory(cheatsList[i].address) & cheatsList[i].value)) {
i+=2;
}
break;
case GSA_ALWAYS:
i++;
break;
case GSA_ALWAYS2:
i+=2;
break;
case GSA_8_BIT_IF_LOWER_S:
if (!((s8)CPUReadByte(cheatsList[i].address) < ((s8)cheatsList[i].value & 0xFF))) {
i++;
}
break;
case GSA_16_BIT_IF_LOWER_S:
if (!((s16)CPUReadHalfWord(cheatsList[i].address) < ((s16)cheatsList[i].value & 0xFFFF))) {
i++;
}
break;
case GSA_32_BIT_IF_LOWER_S:
if (!((s32)CPUReadMemory(cheatsList[i].address) < (s32)cheatsList[i].value)) {
i++;
}
break;
case GSA_8_BIT_IF_HIGHER_S:
if (!((s8)CPUReadByte(cheatsList[i].address) > ((s8)cheatsList[i].value & 0xFF))) {
i++;
}
break;
case GSA_16_BIT_IF_HIGHER_S:
if (!((s16)CPUReadHalfWord(cheatsList[i].address) > ((s16)cheatsList[i].value & 0xFFFF))) {
i++;
}
break;
case GSA_32_BIT_IF_HIGHER_S:
if (!((s32)CPUReadMemory(cheatsList[i].address) > (s32)cheatsList[i].value)) {
i++;
}
break;
case GSA_8_BIT_IF_LOWER_S2:
if (!((s8)CPUReadByte(cheatsList[i].address) < ((s8)cheatsList[i].value & 0xFF))) {
i+=2;
}
break;
case GSA_16_BIT_IF_LOWER_S2:
if (!((s16)CPUReadHalfWord(cheatsList[i].address) < ((s16)cheatsList[i].value & 0xFFFF))) {
i+=2;
}
break;
case GSA_32_BIT_IF_LOWER_S2:
if (!((s32)CPUReadMemory(cheatsList[i].address) < (s32)cheatsList[i].value)) {
i+=2;
}
break;
case GSA_8_BIT_IF_HIGHER_S2:
if (!((s8)CPUReadByte(cheatsList[i].address) > ((s8)cheatsList[i].value & 0xFF))) {
i+=2;
}
break;
case GSA_16_BIT_IF_HIGHER_S2:
if (!((s16)CPUReadHalfWord(cheatsList[i].address) > ((s16)cheatsList[i].value & 0xFFFF))) {
i+=2;
}
break;
case GSA_32_BIT_IF_HIGHER_S2:
if (!((s32)CPUReadMemory(cheatsList[i].address) > (s32)cheatsList[i].value)) {
i+=2;
}
break;
case GSA_16_BIT_WRITE_IOREGS:
if ((cheatsList[i].address <= 0x3FF) && (cheatsList[i].address != 0x6) &&
(cheatsList[i].address != 0x130))
ioMem[cheatsList[i].address & 0x3FE]=cheatsList[i].value & 0xFFFF;
break;
case GSA_32_BIT_WRITE_IOREGS:
if (cheatsList[i].address<=0x3FF)
{
if (((cheatsList[i].address & 0x3FC) != 0x6) && ((cheatsList[i].address & 0x3FC) != 0x130))
ioMem[cheatsList[i].address & 0x3FC]= (cheatsList[i].value & 0xFFFF);
if ((((cheatsList[i].address & 0x3FC)+2) != 0x6) && ((cheatsList[i].address & 0x3FC) +2) != 0x130)
ioMem[(cheatsList[i].address & 0x3FC) + 2 ]= ((cheatsList[i].value>>16 ) & 0xFFFF);
}
break;
case GSA_8_BIT_IF_TRUE3:
if(CPUReadByte(cheatsList[i].address) != cheatsList[i].value) {
onoff=false;
}
break;
case GSA_16_BIT_IF_TRUE3:
if(CPUReadHalfWord(cheatsList[i].address) != cheatsList[i].value) {
onoff=false;
}
break;
case GSA_32_BIT_IF_TRUE3:
if(CPUReadMemory(cheatsList[i].address) != cheatsList[i].value) {
onoff=false;
}
break;
case GSA_8_BIT_IF_FALSE3:
if(CPUReadByte(cheatsList[i].address) == cheatsList[i].value) {
onoff=false;
}
break;
case GSA_16_BIT_IF_FALSE3:
if(CPUReadHalfWord(cheatsList[i].address) == cheatsList[i].value) {
onoff=false;
}
break;
case GSA_32_BIT_IF_FALSE3:
if(CPUReadMemory(cheatsList[i].address) == cheatsList[i].value) {
onoff=false;
}
break;
case GSA_8_BIT_IF_LOWER_S3:
if (!((s8)CPUReadByte(cheatsList[i].address) < ((s8)cheatsList[i].value & 0xFF))) {
onoff=false;
}
break;
case GSA_16_BIT_IF_LOWER_S3:
if (!((s16)CPUReadHalfWord(cheatsList[i].address) < ((s16)cheatsList[i].value & 0xFFFF))) {
onoff=false;
}
break;
case GSA_32_BIT_IF_LOWER_S3:
if (!((s32)CPUReadMemory(cheatsList[i].address) < (s32)cheatsList[i].value)) {
onoff=false;
}
break;
case GSA_8_BIT_IF_HIGHER_S3:
if (!((s8)CPUReadByte(cheatsList[i].address) > ((s8)cheatsList[i].value & 0xFF))) {
onoff=false;
}
break;
case GSA_16_BIT_IF_HIGHER_S3:
if (!((s16)CPUReadHalfWord(cheatsList[i].address) > ((s16)cheatsList[i].value & 0xFFFF))) {
onoff=false;
}
break;
case GSA_32_BIT_IF_HIGHER_S3:
if (!((s32)CPUReadMemory(cheatsList[i].address) > (s32)cheatsList[i].value)) {
onoff=false;
}
break;
case GSA_8_BIT_IF_LOWER_U3:
if (!(CPUReadByte(cheatsList[i].address) < (cheatsList[i].value & 0xFF))) {
onoff=false;
}
break;
case GSA_16_BIT_IF_LOWER_U3:
if (!(CPUReadHalfWord(cheatsList[i].address) < (cheatsList[i].value & 0xFFFF))) {
onoff=false;
}
break;
case GSA_32_BIT_IF_LOWER_U3:
if (!(CPUReadMemory(cheatsList[i].address) < cheatsList[i].value)) {
onoff=false;
}
break;
case GSA_8_BIT_IF_HIGHER_U3:
if (!(CPUReadByte(cheatsList[i].address) > (cheatsList[i].value & 0xFF))) {
onoff=false;
}
break;
case GSA_16_BIT_IF_HIGHER_U3:
if (!(CPUReadHalfWord(cheatsList[i].address) > (cheatsList[i].value & 0xFFFF))) {
onoff=false;
}
break;
case GSA_32_BIT_IF_HIGHER_U3:
if (!(CPUReadMemory(cheatsList[i].address) > cheatsList[i].value)) {
onoff=false;
}
break;
case GSA_8_BIT_IF_AND3:
if (!(CPUReadByte(cheatsList[i].address) & (cheatsList[i].value & 0xFF))) {
onoff=false;
}
break;
case GSA_16_BIT_IF_AND3:
if (!(CPUReadHalfWord(cheatsList[i].address) & (cheatsList[i].value & 0xFFFF))) {
onoff=false;
}
break;
case GSA_32_BIT_IF_AND3:
if (!(CPUReadMemory(cheatsList[i].address) & cheatsList[i].value)) {
onoff=false;
}
break;
case GSA_ALWAYS3:
if (!(CPUReadMemory(cheatsList[i].address) & cheatsList[i].value)) {
onoff=false;
}
break;
case GSA_GROUP_WRITE:
{
int count = ((cheatsList[i].address) & 0xFFFE) +1;
u32 value = cheatsList[i].value;
if (count==0)
i++;
else
for (int x = 1; x <= count; x++) {
if ((x % 2) ==0){
if (x<count)
i++;
CPUWriteMemory(cheatsList[i].rawaddress, value);
}
else
CPUWriteMemory(cheatsList[i].value, value);
}
}
break;
case GSA_32_BIT_ADD2:
CPUWriteMemory(cheatsList[i].value ,
(CPUReadMemory(cheatsList[i].value) + cheatsList[i+1].rawaddress) & 0xFFFFFFFF);
i++;
break;
case GSA_32_BIT_SUB2:
CPUWriteMemory(cheatsList[i].value ,
(CPUReadMemory(cheatsList[i].value) - cheatsList[i+1].rawaddress) & 0xFFFFFFFF);
i++;
break;
case GSA_16_BIT_IF_LOWER_OR_EQ_U:
if(CPUReadHalfWord(cheatsList[i].address) > cheatsList[i].value) {
i++;
}
break;
case GSA_16_BIT_IF_HIGHER_OR_EQ_U:
if(CPUReadHalfWord(cheatsList[i].address) < cheatsList[i].value) {
i++;
}
break;
case GSA_16_BIT_MIF_TRUE:
if(CPUReadHalfWord(cheatsList[i].address) != cheatsList[i].value) {
i+=((cheatsList[i].rawaddress >> 0x10) & 0xFF);
}
break;
case GSA_16_BIT_MIF_FALSE:
if(CPUReadHalfWord(cheatsList[i].address) == cheatsList[i].value) {
i+=(cheatsList[i].rawaddress >> 0x10) & 0xFF;
}
break;
case GSA_16_BIT_MIF_LOWER_OR_EQ_U:
if(CPUReadHalfWord(cheatsList[i].address) > cheatsList[i].value) {
i+=(cheatsList[i].rawaddress >> 0x10) & 0xFF;
}
break;
case GSA_16_BIT_MIF_HIGHER_OR_EQ_U:
if(CPUReadHalfWord(cheatsList[i].address) < cheatsList[i].value) {
i+=(cheatsList[i].rawaddress >> 0x10) & 0xFF;
}
break;
case CHEATS_16_BIT_WRITE:
if ((cheatsList[i].address>>24)>=0x08) {
CHEAT_PATCH_ROM_16BIT(cheatsList[i].address, cheatsList[i].value);
} else {
CPUWriteHalfWord(cheatsList[i].address, cheatsList[i].value);
}
break;
case CHEATS_32_BIT_WRITE:
if ((cheatsList[i].address>>24)>=0x08) {
CHEAT_PATCH_ROM_32BIT(cheatsList[i].address, cheatsList[i].value);
} else {
CPUWriteMemory(cheatsList[i].address, cheatsList[i].value);
}
break;
}
}
}
for (i = 0; i<4; i++)
if (rompatch2addr [i] != 0)
CHEAT_PATCH_ROM_16BIT(rompatch2addr [i],rompatch2val [i]);
return ticks;
}
void cheatsAdd(const char *codeStr,
const char *desc,
u32 rawaddress,
u32 address,
u32 value,
int code,
int size)
{
if(cheatsNumber < 100) {
int x = cheatsNumber;
cheatsList[x].code = code;
cheatsList[x].size = size;
cheatsList[x].rawaddress = rawaddress;
cheatsList[x].address = address;
cheatsList[x].value = value;
strcpy(cheatsList[x].codestring, codeStr);
strcpy(cheatsList[x].desc, desc);
cheatsList[x].enabled = true;
cheatsList[x].status = 0;
// we only store the old value for this simple codes. ROM patching
// is taken care when it actually patches the ROM
switch(cheatsList[x].size) {
case INT_8_BIT_WRITE:
cheatsList[x].oldValue = CPUReadByte(address);
break;
case INT_16_BIT_WRITE:
cheatsList[x].oldValue = CPUReadHalfWord(address);
break;
case INT_32_BIT_WRITE:
cheatsList[x].oldValue = CPUReadMemory(address);
break;
case CHEATS_16_BIT_WRITE:
cheatsList[x].oldValue = CPUReadHalfWord(address);
break;
case CHEATS_32_BIT_WRITE:
cheatsList[x].oldValue = CPUReadMemory(address);
break;
}
cheatsNumber++;
}
}
void cheatsDelete(int number, bool restore)
{
if(number < cheatsNumber && number >= 0) {
int x = number;
if(restore) {
switch(cheatsList[x].size) {
case INT_8_BIT_WRITE:
CPUWriteByte(cheatsList[x].address, (u8)cheatsList[x].oldValue);
break;
case INT_16_BIT_WRITE:
CPUWriteHalfWord(cheatsList[x].address, (u16)cheatsList[x].oldValue);
break;
case INT_32_BIT_WRITE:
CPUWriteMemory(cheatsList[x].address, cheatsList[x].oldValue);
break;
case CHEATS_16_BIT_WRITE:
if ((cheatsList[x].address>>24)>=0x08) {
CHEAT_PATCH_ROM_16BIT(cheatsList[x].address, cheatsList[x].oldValue);
} else {
CPUWriteHalfWord(cheatsList[x].address, cheatsList[x].oldValue);
}
break;
case CHEATS_32_BIT_WRITE:
if ((cheatsList[x].address>>24)>=0x08) {
CHEAT_PATCH_ROM_32BIT(cheatsList[x].address, cheatsList[x].oldValue);
} else {
CPUWriteMemory(cheatsList[x].address, cheatsList[x].oldValue);
}
case GSA_16_BIT_ROM_PATCH:
if(cheatsList[x].status & 1) {
cheatsList[x].status &= ~1;
CHEAT_PATCH_ROM_16BIT(cheatsList[x].address,
cheatsList[x].oldValue);
}
break;
case GSA_16_BIT_ROM_PATCH2C:
case GSA_16_BIT_ROM_PATCH2D:
case GSA_16_BIT_ROM_PATCH2E:
case GSA_16_BIT_ROM_PATCH2F:
if(cheatsList[x].status & 1) {
cheatsList[x].status &= ~1;
}
break;
case MASTER_CODE:
mastercode=0;
break;
}
}
if((x+1) < cheatsNumber) {
memcpy(&cheatsList[x], &cheatsList[x+1], sizeof(CheatsData)*
(cheatsNumber-x-1));
}
cheatsNumber--;
}
}
void cheatsDeleteAll(bool restore)
{
for(int i = cheatsNumber-1; i >= 0; i--) {
cheatsDelete(i, restore);
}
}
void cheatsEnable(int i)
{
if(i >= 0 && i < cheatsNumber) {
cheatsList[i].enabled = true;
mastercode = 0;
}
}
void cheatsDisable(int i)
{
if(i >= 0 && i < cheatsNumber) {
switch(cheatsList[i].size) {
case GSA_16_BIT_ROM_PATCH:
if(cheatsList[i].status & 1) {
cheatsList[i].status &= ~1;
CHEAT_PATCH_ROM_16BIT(cheatsList[i].address,
cheatsList[i].oldValue);
}
break;
case GSA_16_BIT_ROM_PATCH2C:
case GSA_16_BIT_ROM_PATCH2D:
case GSA_16_BIT_ROM_PATCH2E:
case GSA_16_BIT_ROM_PATCH2F:
if(cheatsList[i].status & 1) {
cheatsList[i].status &= ~1;
}
break;
case MASTER_CODE:
mastercode=0;
break;
}
cheatsList[i].enabled = false;
}
}
bool cheatsVerifyCheatCode(const char *code, const char *desc)
{
size_t len = strlen(code);
if(len != 11 && len != 13 && len != 17) {
systemMessage(MSG_INVALID_CHEAT_CODE, N_("Invalid cheat code '%s': wrong length"), code);
return false;
}
if(code[8] != ':') {
systemMessage(MSG_INVALID_CHEAT_CODE, N_("Invalid cheat code '%s': no colon"), code);
return false;
}
size_t i;
for(i = 0; i < 8; i++) {
if(!CHEAT_IS_HEX(code[i])) {
// wrong cheat
systemMessage(MSG_INVALID_CHEAT_CODE,
N_("Invalid cheat code '%s': first part is not hex"), code);
return false;
}
}
for(i = 9; i < len; i++) {
if(!CHEAT_IS_HEX(code[i])) {
// wrong cheat
systemMessage(MSG_INVALID_CHEAT_CODE,
N_("Invalid cheat code '%s' second part is not hex"), code);
return false;
}
}
u32 address = 0;
u32 value = 0;
char buffer[10];
strncpy(buffer, code, 8);
buffer[8] = 0;
sscanf(buffer, "%x", &address);
switch(address >> 24) {
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x07:
case 0x08:
case 0x09:
case 0x0A:
case 0x0B:
case 0x0C:
case 0x0D:
break;
default:
systemMessage(MSG_INVALID_CHEAT_CODE_ADDRESS,
N_("Invalid cheat code address: %08x"),
address);
return false;
}
strncpy(buffer, &code[9], 8);
sscanf(buffer, "%x", &value);
int type = 0;
if(len == 13)
type = 114;
if(len == 17)
type = 115;
cheatsAdd(code, desc, address, address, value, type, type);
return true;
}
void cheatsAddCheatCode(const char *code, const char *desc)
{
cheatsVerifyCheatCode(code, desc);
}
u16 cheatsGSAGetDeadface(bool v3)
{
for(int i = cheatsNumber-1; i >= 0; i--)
if ((cheatsList[i].address == 0xDEADFACE) && (cheatsList[i].code == (v3 ? 257 : 256)))
return cheatsList[i].value & 0xFFFF;
return 0;
}
void cheatsGSAChangeEncryption(u16 value, bool v3) {
int i;
u8 *deadtable1, *deadtable2;
if (v3) {
deadtable1 = (u8*)(&v3_deadtable1);
deadtable2 = (u8*)(&v3_deadtable2);
for (i = 0; i < 4; i++)
seeds_v3[i] = seed_gen(((value & 0xFF00) >> 8), (value & 0xFF) + i, deadtable1, deadtable2);
}
else {
deadtable1 = (u8*)(&v1_deadtable1);
deadtable2 = (u8*)(&v1_deadtable2);
for (i = 0; i < 4; i++){
seeds_v1[i] = seed_gen(((value & 0xFF00) >> 8), (value & 0xFF) + i, deadtable1, deadtable2);
}
}
}
u32 seed_gen(u8 upper, u8 seed, u8 *deadtable1, u8 *deadtable2) {
int i;
u32 newseed = 0;
for (i = 0; i < 4; i++)
newseed = ((newseed << 8) | ((deadtable1[(i + upper) & 0xFF] + deadtable2[seed]) & 0xFF));
return newseed;
}
void cheatsDecryptGSACode(u32& address, u32& value, bool v3)
{
u32 rollingseed = 0xC6EF3720;
u32 *seeds = v3 ? seeds_v3 : seeds_v1;
int bitsleft = 32;
while (bitsleft > 0) {
value -= ((((address << 4) + seeds[2]) ^ (address + rollingseed)) ^
((address >> 5) + seeds[3]));
address -= ((((value << 4) + seeds[0]) ^ (value + rollingseed)) ^
((value >> 5) + seeds[1]));
rollingseed -= 0x9E3779B9;
bitsleft--;
}
}
void cheatsAddGSACode(const char *code, const char *desc, bool v3)
{
if(strlen(code) != 16) {
// wrong cheat
systemMessage(MSG_INVALID_GSA_CODE,
N_("Invalid GSA code. Format is XXXXXXXXYYYYYYYY"));
return;
}
int i;
for(i = 0; i < 16; i++) {
if(!CHEAT_IS_HEX(code[i])) {
// wrong cheat
systemMessage(MSG_INVALID_GSA_CODE,
N_("Invalid GSA code. Format is XXXXXXXXYYYYYYYY"));
return;
}
}
char buffer[10];
strncpy(buffer, code, 8);
buffer[8] = 0;
u32 address;
sscanf(buffer, "%x", &address);
strncpy(buffer, &code[8], 8);
buffer[8] = 0;
u32 value;
sscanf(buffer, "%x", &value);
cheatsGSAChangeEncryption(cheatsGSAGetDeadface (v3), v3);
cheatsDecryptGSACode(address, value, v3);
if(value == 0x1DC0DE) {
u32 gamecode = READ32LE(((u32 *)&rom[0xac]));
if(gamecode != address) {
char buffer[5];
*((u32 *)buffer) = address;
buffer[4] = 0;
char buffer2[5];
*((u32 *)buffer2) = READ32LE(((u32 *)&rom[0xac]));
buffer2[4] = 0;
systemMessage(MSG_GBA_CODE_WARNING, N_("Warning: cheats are for game %s. Current game is %s.\nCodes may not work correctly."),
buffer, buffer2);
}
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value, v3 ? 257 : 256,
UNKNOWN_CODE);
return;
}
if(isMultilineWithData(cheatsNumber-1)) {
cheatsAdd(code, desc, address, address, value, v3 ? 257 : 256, UNKNOWN_CODE);
return;
}
if(v3) {
int type = ((address >> 25) & 127) | ((address >> 17) & 0x80);
u32 addr = (address & 0x00F00000) << 4 | (address & 0x0003FFFF);
u16 mcode = (address>>24 & 0xFF);
if ((mcode & 0xFE) == 0xC4)
{
cheatsAdd(code, desc, address, (address & 0x1FFFFFF) | (0x08000000),
value, 257, MASTER_CODE);
mastercode = (address & 0x1FFFFFF) | (0x08000000);
}
else
switch(type) {
case 0x00:
if(address == 0) {
type = (value >> 25) & 127;
addr = (value & 0x00F00000) << 4 | (value & 0x0003FFFF);
switch(type) {
case 0x04:
cheatsAdd(code, desc, address, 0, value & 0x00FFFFFF, 257, GSA_SLOWDOWN);
break;
case 0x08:
cheatsAdd(code, desc, address, 0, addr, 257, GSA_8_BIT_GS_WRITE2);
break;
case 0x09:
cheatsAdd(code, desc, address, 0, addr, 257, GSA_16_BIT_GS_WRITE2);
break;
case 0x0a:
cheatsAdd(code, desc, address, 0, addr, 257, GSA_32_BIT_GS_WRITE2);
break;
case 0x0c:
cheatsAdd(code, desc, address, 0, value & 0x00FFFFFF, 257, GSA_16_BIT_ROM_PATCH2C);
break;
case 0x0d:
cheatsAdd(code, desc, address, 0, value & 0x00FFFFFF, 257, GSA_16_BIT_ROM_PATCH2D);
break;
case 0x0e:
cheatsAdd(code, desc, address, 0, value & 0x00FFFFFF, 257, GSA_16_BIT_ROM_PATCH2E);
break;
case 0x0f:
cheatsAdd(code, desc, address, 0, value & 0x00FFFFFF, 257, GSA_16_BIT_ROM_PATCH2F);
break;
case 0x20:
cheatsAdd(code, desc, address, 0, addr, 257, GSA_CODES_ON);
break;
case 0x40:
cheatsAdd(code, desc, address, 0, addr, 257, GSA_8_BIT_SLIDE);
break;
case 0x41:
cheatsAdd(code, desc, address, 0, addr, 257, GSA_16_BIT_SLIDE);
break;
case 0x42:
cheatsAdd(code, desc, address, 0, addr, 257, GSA_32_BIT_SLIDE);
break;
default:
cheatsAdd(code, desc, address, address, value, 257, UNKNOWN_CODE);
break;
}
} else
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_FILL);
break;
case 0x01:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_FILL);
break;
case 0x02:
cheatsAdd(code, desc, address, addr, value, 257, INT_32_BIT_WRITE);
break;
case 0x04:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_TRUE);
break;
case 0x05:
cheatsAdd(code, desc, address, addr, value, 257, CBA_IF_TRUE);
break;
case 0x06:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_TRUE);
break;
case 0x07:
cheatsAdd(code, desc, address, addr, value, 257, GSA_ALWAYS);
break;
case 0x08:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_FALSE);
break;
case 0x09:
cheatsAdd(code, desc, address, addr, value, 257, CBA_IF_FALSE);
break;
case 0x0a:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_FALSE);
break;
case 0xc:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_LOWER_S);
break;
case 0xd:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_LOWER_S);
break;
case 0xe:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_LOWER_S);
break;
case 0x10:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_HIGHER_S);
break;
case 0x11:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_HIGHER_S);
break;
case 0x12:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_HIGHER_S);
break;
case 0x14:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_LOWER_U);
break;
case 0x15:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_LOWER_U);
break;
case 0x16:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_LOWER_U);
break;
case 0x18:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_HIGHER_U);
break;
case 0x19:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_HIGHER_U);
break;
case 0x1A:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_HIGHER_U);
break;
case 0x1C:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_AND);
break;
case 0x1D:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_AND);
break;
case 0x1E:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_AND);
break;
case 0x20:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_POINTER);
break;
case 0x21:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_POINTER);
break;
case 0x22:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_POINTER);
break;
case 0x24:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_TRUE2);
break;
case 0x25:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_TRUE2);
break;
case 0x26:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_TRUE2);
break;
case 0x27:
cheatsAdd(code, desc, address, addr, value, 257, GSA_ALWAYS2);
break;
case 0x28:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_FALSE2);
break;
case 0x29:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_FALSE2);
break;
case 0x2a:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_FALSE2);
break;
case 0x2c:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_LOWER_S2);
break;
case 0x2d:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_LOWER_S2);
break;
case 0x2e:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_LOWER_S2);
break;
case 0x30:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_HIGHER_S2);
break;
case 0x31:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_HIGHER_S2);
break;
case 0x32:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_HIGHER_S2);
break;
case 0x34:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_LOWER_U2);
break;
case 0x35:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_LOWER_U2);
break;
case 0x36:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_LOWER_U2);
break;
case 0x38:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_HIGHER_U2);
break;
case 0x39:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_HIGHER_U2);
break;
case 0x3A:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_HIGHER_U2);
break;
case 0x3C:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_AND2);
break;
case 0x3D:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_AND2);
break;
case 0x3E:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_AND2);
break;
case 0x40:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_ADD);
break;
case 0x41:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_ADD);
break;
case 0x42:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_ADD);
break;
case 0x44:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_TRUE3);
break;
case 0x45:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_TRUE3);
break;
case 0x46:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_TRUE3);
break;
case 0x47:
cheatsAdd(code, desc, address, addr, value, 257, GSA_ALWAYS3);
break;
case 0x48:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_FALSE3);
break;
case 0x49:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_FALSE3);
break;
case 0x4a:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_FALSE3);
break;
case 0x4c:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_LOWER_S3);
break;
case 0x4d:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_LOWER_S3);
break;
case 0x4e:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_LOWER_S3);
break;
case 0x50:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_HIGHER_S3);
break;
case 0x51:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_HIGHER_S3);
break;
case 0x52:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_HIGHER_S3);
break;
case 0x54:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_LOWER_U3);
break;
case 0x55:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_LOWER_U3);
break;
case 0x56:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_LOWER_U3);
break;
case 0x58:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_HIGHER_U3);
break;
case 0x59:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_HIGHER_U3);
break;
case 0x5a:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_HIGHER_U3);
break;
case 0x5c:
cheatsAdd(code, desc, address, addr, value, 257, GSA_8_BIT_IF_AND3);
break;
case 0x5d:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_IF_AND3);
break;
case 0x5e:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_IF_AND3);
break;
case 0x63:
cheatsAdd(code, desc, address, addr, value, 257, GSA_16_BIT_WRITE_IOREGS);
break;
case 0xE3:
cheatsAdd(code, desc, address, addr, value, 257, GSA_32_BIT_WRITE_IOREGS);
break;
default:
cheatsAdd(code, desc, address, address, value, 257, UNKNOWN_CODE);
break;
}
} else {
int type = (address >> 28) & 15;
switch(type) {
case 0:
case 1:
case 2:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value, 256, type);
break;
case 3:
switch ((address >> 0x10) & 0xFF){
case 0x00:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value, 256, GSA_GROUP_WRITE);
break;
case 0x10:
cheatsAdd(code, desc, address, value & 0x0FFFFFFF, address & 0xFF, 256, GSA_32_BIT_ADD );
break;
case 0x20:
cheatsAdd(code, desc, address, value & 0x0FFFFFFF, (~(address & 0xFF)+1), 256, GSA_32_BIT_ADD );
break;
case 0x30:
cheatsAdd(code, desc, address, value & 0x0FFFFFFF, address & 0xFFFF, 256, GSA_32_BIT_ADD );
break;
case 0x40:
cheatsAdd(code, desc, address, value & 0x0FFFFFFF, (~(address & 0xFFFF)+1), 256, GSA_32_BIT_ADD );
break;
case 0x50:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value, 256, GSA_32_BIT_ADD2);
break;
case 0x60:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value, 256, GSA_32_BIT_SUB2);
break;
default:
// unsupported code
cheatsAdd(code, desc, address, address, value, 256,
UNKNOWN_CODE);
break;
}
break;
case 6:
address <<= 1;
type = (value >> 24) & 0xFF;
if(type == 0x00) {
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value & 0xFFFF, 256,
GSA_16_BIT_ROM_PATCH);
break;
}
// unsupported code
cheatsAdd(code, desc, address, address, value, 256,
UNKNOWN_CODE);
break;
case 8:
switch((address >> 20) & 15) {
case 1:
cheatsAdd(code, desc, address, address & 0x0F0FFFFF, value, 256,
GSA_8_BIT_GS_WRITE);
break;
case 2:
cheatsAdd(code, desc, address, address & 0x0F0FFFFF, value, 256,
GSA_16_BIT_GS_WRITE);
break;
case 4:
// This code is buggy : the value is always set to 0 !
cheatsAdd(code, desc, address, address & 0x0F0FFFFF, 0, 256,
GSA_32_BIT_GS_WRITE);
break;
case 15:
cheatsAdd(code, desc, address, 0, value & 0xFFFF, 256, GSA_SLOWDOWN);
break;
default:
// unsupported code
cheatsAdd(code, desc, address, address, value, 256,
UNKNOWN_CODE);
break;
}
break;
case 0x0d:
if(address != 0xDEADFACE) {
switch((value >> 20) & 0xF) {
case 0:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value & 0xFFFF, 256,
CBA_IF_TRUE);
break;
case 1:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value & 0xFFFF, 256,
CBA_IF_FALSE);
break;
case 2:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value & 0xFFFF, 256,
GSA_16_BIT_IF_LOWER_OR_EQ_U);
break;
case 3:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value & 0xFFFF, 256,
GSA_16_BIT_IF_HIGHER_OR_EQ_U);
break;
default:
// unsupported code
cheatsAdd(code, desc, address, address, value, 256,
UNKNOWN_CODE);
break;
}
} else
cheatsAdd(code, desc, address, address, value, 256,
UNKNOWN_CODE);
break;
case 0x0e:
switch((value >> 28) & 0xF) {
case 0:
cheatsAdd(code, desc, address, value & 0x0FFFFFFF, address & 0xFFFF, 256,
GSA_16_BIT_MIF_TRUE);
break;
case 1:
cheatsAdd(code, desc, address, value & 0x0FFFFFFF, address & 0xFFFF, 256,
GSA_16_BIT_MIF_FALSE);
break;
case 2:
cheatsAdd(code, desc, address, value & 0x0FFFFFFF, address & 0xFFFF, 256,
GSA_16_BIT_MIF_LOWER_OR_EQ_U);
break;
case 3:
cheatsAdd(code, desc, address, value & 0x0FFFFFFF, address & 0xFFFF, 256,
GSA_16_BIT_MIF_HIGHER_OR_EQ_U);
break;
default:
// unsupported code
cheatsAdd(code, desc, address, address, value, 256,
UNKNOWN_CODE);
break;
}
break;
case 0x0f:
cheatsAdd(code, desc, address, (address & 0xFFFFFFF), value, 256, MASTER_CODE);
mastercode = (address & 0xFFFFFFF);
break;
default:
// unsupported code
cheatsAdd(code, desc, address, address, value, 256,
UNKNOWN_CODE);
break;
}
}
}
bool cheatsImportGSACodeFile(const char *name, int game, bool v3)
{
FILE *f = fopen(name, "rb");
if(!f)
return false;
int games = 0;
int len = 0;
fseek(f, 0x1e, SEEK_CUR);
fread(&games, 1, 4, f);
bool found = false;
int g = 0;
while(games > 0) {
if(g == game) {
found = true;
break;
}
fread(&len, 1, 4, f);
fseek(f,len,SEEK_CUR);
int codes = 0;
fread(&codes, 1, 4, f);
while(codes > 0) {
fread(&len, 1, 4, f);
fseek(f, len, SEEK_CUR);
fseek(f, 8, SEEK_CUR);
fread(&len, 1, 4, f);
fseek(f, len*12, SEEK_CUR);
codes--;
}
games--;
g++;
}
if(found) {
char desc[256];
char code[17];
fread(&len, 1, 4, f);
fseek(f, len, SEEK_CUR);
int codes = 0;
fread(&codes, 1, 4, f);
while(codes > 0) {
fread(&len, 1, 4, f);
fread(desc, 1, len, f);
desc[len] =0;
desc[31] = 0;
fread(&len, 1, 4, f);
fseek(f, len, SEEK_CUR);
fseek(f, 4, SEEK_CUR);
fread(&len, 1, 4, f);
while(len) {
fseek(f, 4, SEEK_CUR);
fread(code, 1, 8, f);
fseek(f, 4, SEEK_CUR);
fread(&code[8], 1, 8, f);
code[16] = 0;
cheatsAddGSACode(code, desc, v3);
len -= 2;
}
codes--;
}
}
fclose(f);
return false;
}
void cheatsCBAReverseArray(u8 *array, u8 *dest)
{
dest[0] = array[3];
dest[1] = array[2];
dest[2] = array[1];
dest[3] = array[0];
dest[4] = array[5];
dest[5] = array[4];
}
void chatsCBAScramble(u8 *array, int count, u8 b)
{
u8 *x = array + (count >> 3);
u8 *y = array + (b >> 3);
u32 z = *x & (1 << (count & 7));
u32 x0 = (*x & (~(1 << (count & 7))));
if (z != 0)
z = 1;
if ((*y & (1 << (b & 7))) != 0)
x0 |= (1 << (count & 7));
*x = x0;
u32 temp = *y & (~(1 << (b & 7)));
if (z != 0)
temp |= (1 << (b & 7));
*y = temp;
}
u32 cheatsCBAGetValue(u8 *array)
{
return array[0] | array[1]<<8 | array[2] << 16 | array[3]<<24;
}
u16 cheatsCBAGetData(u8 *array)
{
return array[4] | array[5]<<8;
}
void cheatsCBAArrayToValue(u8 *array, u8 *dest)
{
dest[0] = array[3];
dest[1] = array[2];
dest[2] = array[1];
dest[3] = array[0];
dest[4] = array[5];
dest[5] = array[4];
}
void cheatsCBAParseSeedCode(u32 address, u32 value, u32 *array)
{
array[0] = 1;
array[1] = value & 0xFF;
array[2] = (address >> 0x10) & 0xFF;
array[3] = (value >> 8) & 0xFF;
array[4] = (address >> 0x18) & 0x0F;
array[5] = address & 0xFFFF;
array[6] = address;
array[7] = value;
}
u32 cheatsCBAEncWorker()
{
u32 x = (cheatsCBATemporaryValue * 0x41c64e6d) + 0x3039;
u32 y = (x * 0x41c64e6d) + 0x3039;
u32 z = x >> 0x10;
x = ((y >> 0x10) & 0x7fff) << 0x0f;
z = (z << 0x1e) | x;
x = (y * 0x41c64e6d) + 0x3039;
cheatsCBATemporaryValue = x;
return z | ((x >> 0x10) & 0x7fff);
}
#define ROR(v, s) \
(((v) >> (s)) | (((v) & ((1 << (s))-1)) << (32 - (s))))
u32 cheatsCBACalcIndex(u32 x, u32 y)
{
if(y != 0) {
if(y == 1)
x = 0;
else if(x == y)
x = 0;
if(y < 1)
return x;
else if(x < y)
return x;
u32 x0 = 1;
while(y < 0x10000000) {
if(y < x) {
y = y << 4;
x0 = x0 << 4;
} else break;
}
while(y < 0x80000000) {
if(y < x) {
y = y << 1;
x0 = x0 << 1;
} else break;
}
loop:
u32 z = 0;
if(x >= y)
x -= y;
if(x >= (y >> 1)) {
x -= (y >> 1);
z |= ROR(x0, 1);
}
if(x >= (y >> 2)) {
x -= (y >> 2);
z |= ROR(x0, 2);
}
if(x >= (y >> 3)) {
x -= (y >> 3);
z |= ROR(x0, 3);
}
u32 temp = x0;
if(x != 0) {
x0 = x0 >> 4;
if(x0 != 0) {
y = y >> 4;
goto loop;
}
}
z = z & 0xe0000000;
if(z != 0) {
if((temp & 7) == 0)
return x;
} else
return x;
if((z & ROR(temp, 3)) != 0)
x += y >> 3;
if((z & ROR(temp, 2)) != 0)
x += y >> 2;
if((z & ROR(temp, 1)) != 0)
x += y >> 1;
return x;
} else {
}
// should not happen in the current code
return 0;
}
void cheatsCBAUpdateSeedBuffer(u32 a, u8 *buffer, int count)
{
int i;
for(i = 0; i < count; i++)
buffer[i] = i;
for(i = 0; (u32)i < a; i++) {
u32 a = cheatsCBACalcIndex(cheatsCBAEncWorker(), count);
u32 b = cheatsCBACalcIndex(cheatsCBAEncWorker(), count);
u32 t = buffer[a];
buffer[a] = buffer[b];
buffer[b] = t;
}
}
void cheatsCBAChangeEncryption(u32 *seed)
{
int i;
cheatsCBATemporaryValue = (seed[1] ^ 0x1111);
cheatsCBAUpdateSeedBuffer(0x50, cheatsCBASeedBuffer, 0x30);
cheatsCBATemporaryValue = 0x4efad1c3;
for(i = 0; (u32)i < seed[4]; i++) {
cheatsCBATemporaryValue = cheatsCBAEncWorker();
}
cheatsCBASeed[2] = cheatsCBAEncWorker();
cheatsCBASeed[3] = cheatsCBAEncWorker();
cheatsCBATemporaryValue = seed[3] ^ 0xf254;
for(i = 0; (u32)i < seed[3]; i++) {
cheatsCBATemporaryValue = cheatsCBAEncWorker();
}
cheatsCBASeed[0] = cheatsCBAEncWorker();
cheatsCBASeed[1] = cheatsCBAEncWorker();
*((u32 *)&cheatsCBACurrentSeed[0]) = seed[6];
*((u32 *)&cheatsCBACurrentSeed[4]) = seed[7];
*((u32 *)&cheatsCBACurrentSeed[8]) = 0;
}
u16 cheatsCBAGenValue(u32 x, u32 y, u32 z)
{
y <<= 0x10;
z <<= 0x10;
x <<= 0x18;
u32 x0 = (int)y >> 0x10;
z = (int)z >> 0x10;
x = (int)x >> 0x10;
for(int i = 0; i < 8; i++) {
u32 temp = z ^ x;
if ((int)temp >= 0) {
temp = z << 0x11;
}
else {
temp = z << 0x01;
temp ^= x0;
temp = temp << 0x10;
}
z = (int)temp >> 0x10;
temp = x << 0x11;
x = (int)temp >> 0x10;
}
return z & 0xffff;
}
void cheatsCBAGenTable() {
for (int i = 0; i < 0x100; i++) {
cheatsCBATable[i] = cheatsCBAGenValue(i, 0x1021, 0);
}
cheatsCBATableGenerated = true;
}
u16 cheatsCBACalcCRC(u8 *rom, int count)
{
u32 crc = 0xffffffff;
if (count & 3) {
// 0x08000EAE
} else {
count = (count >> 2) - 1;
if(count != -1) {
while(count != -1) {
crc = (((crc << 0x08) ^ cheatsCBATable[(((u32)crc << 0x10) >> 0x18)
^ *rom++]) << 0x10) >> 0x10;
crc = (((crc << 0x08) ^ cheatsCBATable[(((u32)crc << 0x10) >> 0x18)
^ *rom++]) << 0x10) >> 0x10;
crc = (((crc << 0x08) ^ cheatsCBATable[(((u32)crc << 0x10) >> 0x18)
^ *rom++]) << 0x10) >> 0x10;
crc = (((crc << 0x08) ^ cheatsCBATable[(((u32)crc << 0x10) >> 0x18)
^ *rom++]) << 0x10) >> 0x10;
count--;
}
}
}
return crc & 0xffff;
}
void cheatsCBADecrypt(u8 *decrypt)
{
u8 buffer[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
u8 *array = &buffer[1];
cheatsCBAReverseArray(decrypt, array);
for(int count = 0x2f; count >= 0; count--) {
chatsCBAScramble(array, count, cheatsCBASeedBuffer[count]);
}
cheatsCBAArrayToValue(array, decrypt);
*((u32 *)decrypt) = cheatsCBAGetValue(decrypt) ^
cheatsCBASeed[0];
*((u16 *)(decrypt+4)) = (cheatsCBAGetData(decrypt) ^
cheatsCBASeed[1]) & 0xffff;
cheatsCBAReverseArray(decrypt, array);
u32 cs = cheatsCBAGetValue(cheatsCBACurrentSeed);
for(int i = 0; i <= 4; i++) {
array[i] = ((cs >> 8) ^ array[i+1]) ^ array[i] ;
}
array[5] = (cs >> 8) ^ array[5];
for(int j = 5; j >=0; j--) {
array[j] = (cs ^ array[j-1]) ^ array[j];
}
cheatsCBAArrayToValue(array, decrypt);
*((u32 *)decrypt) = cheatsCBAGetValue(decrypt)
^ cheatsCBASeed[2];
*((u16 *)(decrypt+4)) = (cheatsCBAGetData(decrypt)
^ cheatsCBASeed[3]) & 0xffff;
}
int cheatsCBAGetCount()
{
int count = 0;
for(int i = 0; i < cheatsNumber; i++) {
if(cheatsList[i].code == 512)
count++;
}
return count;
}
bool cheatsCBAShouldDecrypt()
{
for(int i = 0; i < cheatsNumber; i++) {
if(cheatsList[i].code == 512) {
return (cheatsList[i].codestring[0] == '9');
}
}
return false;
}
void cheatsAddCBACode(const char *code, const char *desc)
{
if(strlen(code) != 13) {
// wrong cheat
systemMessage(MSG_INVALID_CBA_CODE,
N_("Invalid CBA code. Format is XXXXXXXX YYYY."));
return;
}
int i;
for(i = 0; i < 8; i++) {
if(!CHEAT_IS_HEX(code[i])) {
// wrong cheat
systemMessage(MSG_INVALID_CBA_CODE,
N_("Invalid CBA code. Format is XXXXXXXX YYYY."));
return;
}
}
if(code[8] != ' ') {
systemMessage(MSG_INVALID_CBA_CODE,
N_("Invalid CBA code. Format is XXXXXXXX YYYY."));
return;
}
for(i = 9; i < 13; i++) {
if(!CHEAT_IS_HEX(code[i])) {
// wrong cheat
systemMessage(MSG_INVALID_CBA_CODE,
N_("Invalid CBA code. Format is XXXXXXXX YYYY."));
return;
}
}
char buffer[10];
strncpy(buffer, code, 8);
buffer[8] = 0;
u32 address;
sscanf(buffer, "%x", &address);
strncpy(buffer, &code[9], 4);
buffer[4] = 0;
u32 value;
sscanf(buffer, "%x", &value);
u8 array[8] = {
address & 255,
(address >> 8) & 255,
(address >> 16) & 255,
(address >> 24) & 255,
(value & 255),
(value >> 8) & 255,
0,
0
};
if(cheatsCBAGetCount() == 0 &&
(address >> 28) == 9) {
u32 seed[8];
cheatsCBAParseSeedCode(address, value, seed);
cheatsCBAChangeEncryption(seed);
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value, 512, UNKNOWN_CODE);
} else {
if(cheatsCBAShouldDecrypt())
cheatsCBADecrypt(array);
address = READ32LE(((u32 *)array));
value = READ16LE(((u16 *)&array[4]));
int type = (address >> 28) & 15;
if(isMultilineWithData(cheatsNumber-1) || (super>0)) {
cheatsAdd(code, desc, address, address, value, 512, UNKNOWN_CODE);
if (super>0)
super-= 1;
return;
}
switch(type) {
case 0x00:
{
if(!cheatsCBATableGenerated)
cheatsCBAGenTable();
u32 crc = cheatsCBACalcCRC(rom, 0x10000);
if(crc != address) {
systemMessage(MSG_CBA_CODE_WARNING,
N_("Warning: Codes seem to be for a different game.\nCodes may not work correctly."));
}
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value, 512,
UNKNOWN_CODE);
}
break;
case 0x01:
cheatsAdd(code, desc, address, (address & 0x1FFFFFF) | 0x08000000, value, 512, MASTER_CODE);
mastercode = (address & 0x1FFFFFF) | 0x08000000;
break;
case 0x02:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
CBA_OR);
break;
case 0x03:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value, 512,
INT_8_BIT_WRITE);
break;
case 0x04:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
CBA_SLIDE_CODE);
break;
case 0x05:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
CBA_SUPER);
super = getCodeLength(cheatsNumber-1);
break;
case 0x06:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
CBA_AND);
break;
case 0x07:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
CBA_IF_TRUE);
break;
case 0x08:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
INT_16_BIT_WRITE);
break;
case 0x0a:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
CBA_IF_FALSE);
break;
case 0x0b:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
CBA_GT);
break;
case 0x0c:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
CBA_LT);
break;
case 0x0d:
if ((address & 0xF0)<0x30)
cheatsAdd(code, desc, address, address & 0xF0, value, 512,
CBA_IF_KEYS_PRESSED);
break;
case 0x0e:
cheatsAdd(code, desc, address, address & 0x0FFFFFFF, value & 0x8000 ? value | 0xFFFF0000 : value, 512,
CBA_ADD);
break;
case 0x0f:
cheatsAdd(code, desc, address, address & 0x0FFFFFFE, value, 512,
GSA_16_BIT_IF_AND);
break;
default:
// unsupported code
cheatsAdd(code, desc, address, address & 0xFFFFFFFF, value, 512,
UNKNOWN_CODE);
break;
}
}
}
void cheatsSaveGame(gzFile file)
{
utilWriteInt(file, cheatsNumber);
utilGzWrite(file, cheatsList, sizeof(cheatsList));
}
void cheatsReadGame(gzFile file, int version)
{
cheatsNumber = 0;
cheatsNumber = utilReadInt(file);
if (version > 8)
utilGzRead(file, cheatsList, sizeof(cheatsList));
bool firstCodeBreaker = true;
for(int i = 0; i < cheatsNumber; i++) {
if (version <9)
{
cheatsList[i].code = utilReadInt(file);
cheatsList[i].size = utilReadInt(file);
cheatsList[i].status = utilReadInt(file);
cheatsList[i].enabled = utilReadInt(file) ? true : false;
utilGzRead(file, &cheatsList[i].address, sizeof(u32));
cheatsList[i].rawaddress = cheatsList[i].address;
utilGzRead(file, &cheatsList[i].value, sizeof(u32));
utilGzRead(file, &cheatsList[i].oldValue, sizeof(u32));
utilGzRead(file, &cheatsList[i].codestring, 20*sizeof(char));
utilGzRead(file, &cheatsList[i].desc, 32*sizeof(char));
}
cheatsList[i].status = 0;
if(!cheatsList[i].codestring[0]) {
switch(cheatsList[i].size) {
case 0:
sprintf(cheatsList[i].codestring, "%08x:%02x", cheatsList[i].address,
cheatsList[i].value);
break;
case 1:
sprintf(cheatsList[i].codestring, "%08x:%04x", cheatsList[i].address,
cheatsList[i].value);
break;
case 2:
sprintf(cheatsList[i].codestring, "%08x:%08x", cheatsList[i].address,
cheatsList[i].value);
break;
}
}
if(cheatsList[i].enabled) {
cheatsEnable(i);
}
if(cheatsList[i].code == 512 && firstCodeBreaker) {
firstCodeBreaker = false;
char buffer[10];
strncpy(buffer, cheatsList[i].codestring, 8);
buffer[8] = 0;
u32 address;
sscanf(buffer, "%x", &address);
if((address >> 28) == 9) {
strncpy(buffer, &cheatsList[i].codestring[9], 4);
buffer[4] = 0;
u32 value;
sscanf(buffer, "%x", &value);
u32 seed[8];
cheatsCBAParseSeedCode(address, value, seed);
cheatsCBAChangeEncryption(seed);
}
}
}
}
void cheatsSaveCheatList(const char *file)
{
if(cheatsNumber == 0)
return;
FILE *f = fopen(file, "wb");
if(f == NULL)
return;
int version = 1;
fwrite(&version, 1, sizeof(version), f);
int type = 1;
fwrite(&type, 1, sizeof(type), f);
fwrite(&cheatsNumber, 1, sizeof(cheatsNumber), f);
fwrite(cheatsList, 1, sizeof(cheatsList), f);
fclose(f);
}
bool cheatsLoadCheatList(const char *file)
{
int count = 0;
FILE *f = fopen(file, "rb");
if(f == NULL)
return false;
int version = 0;
if(fread(&version, 1, sizeof(version), f) != sizeof(version)) {
fclose(f);
return false;
}
if(version != 1) {
systemMessage(MSG_UNSUPPORTED_CHEAT_LIST_VERSION,
N_("Unsupported cheat list version %d"), version);
fclose(f);
return false;
}
int type = 0;
if(fread(&type, 1, sizeof(type), f) != sizeof(type)) {
fclose(f);
return false;
}
if((type != 0) && (type != 1)) {
systemMessage(MSG_UNSUPPORTED_CHEAT_LIST_TYPE,
N_("Unsupported cheat list type %d"), type);
fclose(f);
return false;
}
if(fread(&count, 1, sizeof(count), f) != sizeof(count)) {
fclose(f);
return false;
}
if (type == 1)
{
if(fread(cheatsList, 1, sizeof(cheatsList), f) != sizeof(cheatsList)) {
fclose(f);
return false;
}
}
else if (type == 0)
{
for(int i = 0; i < count; i++) {
fread(&cheatsList[i].code, 1, sizeof(int),f);
fread(&cheatsList[i].size, 1, sizeof(int),f);
fread(&cheatsList[i].status, 1, sizeof(int),f);
fread(&cheatsList[i].enabled, 1, sizeof(int),f);
cheatsList[i].enabled = cheatsList[i].enabled ? true : false;
fread(&cheatsList[i].address, 1, sizeof(u32),f);
cheatsList[i].rawaddress = cheatsList[i].address;
fread(&cheatsList[i].value, 1, sizeof(u32),f);
fread(&cheatsList[i].oldValue, 1, sizeof(u32),f);
fread(&cheatsList[i].codestring, 1, 20*sizeof(char),f);
if(fread(&cheatsList[i].desc, 1, 32*sizeof(char),f) != 32*sizeof(char)) {
fclose(f);
return false;
}
}
}
bool firstCodeBreaker = true;
for(int i = 0; i < count; i++) {
cheatsList[i].status = 0; // remove old status as it is not used
if(!cheatsList[i].codestring[0]) {
switch(cheatsList[i].size) {
case 0:
sprintf(cheatsList[i].codestring, "%08x:%02x", cheatsList[i].address,
cheatsList[i].value);
break;
case 1:
sprintf(cheatsList[i].codestring, "%08x:%04x", cheatsList[i].address,
cheatsList[i].value);
break;
case 2:
sprintf(cheatsList[i].codestring, "%08x:%08x", cheatsList[i].address,
cheatsList[i].value);
break;
}
}
if(cheatsList[i].code == 512 && firstCodeBreaker) {
firstCodeBreaker = false;
char buffer[10];
strncpy(buffer, cheatsList[i].codestring, 8);
buffer[8] = 0;
u32 address;
sscanf(buffer, "%x", &address);
if((address >> 28) == 9) {
strncpy(buffer, &cheatsList[i].codestring[9], 4);
buffer[4] = 0;
u32 value;
sscanf(buffer, "%x", &value);
u32 seed[8];
cheatsCBAParseSeedCode(address, value, seed);
cheatsCBAChangeEncryption(seed);
}
}
}
cheatsNumber = count;
fclose(f);
return true;
}
extern int cpuNextEvent;
extern void debuggerBreakOnWrite(u32 , u32, u32, int, int);
#ifdef BKPT_SUPPORT
static u8 cheatsGetType(u32 address)
{
switch(address >> 24) {
case 2:
return freezeWorkRAM[address & 0x3FFFF];
case 3:
return freezeInternalRAM[address & 0x7FFF];
case 5:
return freezePRAM[address & 0x3FC];
case 6:
if (address > 0x06010000)
return freezeVRAM[address & 0x17FFF];
else
return freezeVRAM[address & 0x1FFFF];
case 7:
return freezeOAM[address & 0x3FC];
}
return 0;
}
#endif
void cheatsWriteMemory(u32 address, u32 value)
{
#ifdef BKPT_SUPPORT
#ifdef SDL
if(cheatsNumber == 0) {
int type = cheatsGetType(address);
u32 oldValue = debuggerReadMemory(address);
if(type == 1 || (type == 2 && oldValue != value)) {
debuggerBreakOnWrite(address, oldValue, value, 2, type);
cpuNextEvent = 0;
}
debuggerWriteMemory(address, value);
}
#endif
#endif
}
void cheatsWriteHalfWord(u32 address, u16 value)
{
#ifdef BKPT_SUPPORT
#ifdef SDL
if(cheatsNumber == 0) {
int type = cheatsGetType(address);
u16 oldValue = debuggerReadHalfWord(address);
if(type == 1 || (type == 2 && oldValue != value)) {
debuggerBreakOnWrite(address, oldValue, value, 1, type);
cpuNextEvent = 0;
}
debuggerWriteHalfWord(address, value);
}
#endif
#endif
}
#if defined BKPT_SUPPORT && defined SDL
void cheatsWriteByte(u32 address, u8 value)
#else
void cheatsWriteByte(u32, u8)
#endif
{
#ifdef BKPT_SUPPORT
#ifdef SDL
if(cheatsNumber == 0) {
int type = cheatsGetType(address);
u8 oldValue = debuggerReadByte(address);
if(type == 1 || (type == 2 && oldValue != value)) {
debuggerBreakOnWrite(address, oldValue, value, 0, type);
cpuNextEvent = 0;
}
debuggerWriteByte(address, value);
}
#endif
#endif
}
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