mirror of
https://github.com/libretro/snes9x.git
synced 2024-11-30 12:00:35 +00:00
948 lines
22 KiB
C++
948 lines
22 KiB
C++
/***********************************************************************************
|
|
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
|
|
|
|
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
|
|
Jerremy Koot (jkoot@snes9x.com)
|
|
|
|
(c) Copyright 2002 - 2004 Matthew Kendora
|
|
|
|
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
|
|
|
|
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
|
|
|
|
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
|
|
|
|
(c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca),
|
|
Kris Bleakley (codeviolation@hotmail.com)
|
|
|
|
(c) Copyright 2002 - 2010 Brad Jorsch (anomie@users.sourceforge.net),
|
|
Nach (n-a-c-h@users.sourceforge.net),
|
|
|
|
(c) Copyright 2002 - 2011 zones (kasumitokoduck@yahoo.com)
|
|
|
|
(c) Copyright 2006 - 2007 nitsuja
|
|
|
|
(c) Copyright 2009 - 2017 BearOso,
|
|
OV2
|
|
|
|
(c) Copyright 2017 qwertymodo
|
|
|
|
(c) Copyright 2011 - 2017 Hans-Kristian Arntzen,
|
|
Daniel De Matteis
|
|
(Under no circumstances will commercial rights be given)
|
|
|
|
|
|
BS-X C emulator code
|
|
(c) Copyright 2005 - 2006 Dreamer Nom,
|
|
zones
|
|
|
|
C4 x86 assembler and some C emulation code
|
|
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
|
|
Nach,
|
|
zsKnight (zsknight@zsnes.com)
|
|
|
|
C4 C++ code
|
|
(c) Copyright 2003 - 2006 Brad Jorsch,
|
|
Nach
|
|
|
|
DSP-1 emulator code
|
|
(c) Copyright 1998 - 2006 _Demo_,
|
|
Andreas Naive (andreasnaive@gmail.com),
|
|
Gary Henderson,
|
|
Ivar (ivar@snes9x.com),
|
|
John Weidman,
|
|
Kris Bleakley,
|
|
Matthew Kendora,
|
|
Nach,
|
|
neviksti (neviksti@hotmail.com)
|
|
|
|
DSP-2 emulator code
|
|
(c) Copyright 2003 John Weidman,
|
|
Kris Bleakley,
|
|
Lord Nightmare (lord_nightmare@users.sourceforge.net),
|
|
Matthew Kendora,
|
|
neviksti
|
|
|
|
DSP-3 emulator code
|
|
(c) Copyright 2003 - 2006 John Weidman,
|
|
Kris Bleakley,
|
|
Lancer,
|
|
z80 gaiden
|
|
|
|
DSP-4 emulator code
|
|
(c) Copyright 2004 - 2006 Dreamer Nom,
|
|
John Weidman,
|
|
Kris Bleakley,
|
|
Nach,
|
|
z80 gaiden
|
|
|
|
OBC1 emulator code
|
|
(c) Copyright 2001 - 2004 zsKnight,
|
|
pagefault (pagefault@zsnes.com),
|
|
Kris Bleakley
|
|
Ported from x86 assembler to C by sanmaiwashi
|
|
|
|
SPC7110 and RTC C++ emulator code used in 1.39-1.51
|
|
(c) Copyright 2002 Matthew Kendora with research by
|
|
zsKnight,
|
|
John Weidman,
|
|
Dark Force
|
|
|
|
SPC7110 and RTC C++ emulator code used in 1.52+
|
|
(c) Copyright 2009 byuu,
|
|
neviksti
|
|
|
|
S-DD1 C emulator code
|
|
(c) Copyright 2003 Brad Jorsch with research by
|
|
Andreas Naive,
|
|
John Weidman
|
|
|
|
S-RTC C emulator code
|
|
(c) Copyright 2001 - 2006 byuu,
|
|
John Weidman
|
|
|
|
ST010 C++ emulator code
|
|
(c) Copyright 2003 Feather,
|
|
John Weidman,
|
|
Kris Bleakley,
|
|
Matthew Kendora
|
|
|
|
Super FX x86 assembler emulator code
|
|
(c) Copyright 1998 - 2003 _Demo_,
|
|
pagefault,
|
|
zsKnight
|
|
|
|
Super FX C emulator code
|
|
(c) Copyright 1997 - 1999 Ivar,
|
|
Gary Henderson,
|
|
John Weidman
|
|
|
|
Sound emulator code used in 1.5-1.51
|
|
(c) Copyright 1998 - 2003 Brad Martin
|
|
(c) Copyright 1998 - 2006 Charles Bilyue'
|
|
|
|
Sound emulator code used in 1.52+
|
|
(c) Copyright 2004 - 2007 Shay Green (gblargg@gmail.com)
|
|
|
|
S-SMP emulator code used in 1.54+
|
|
(c) Copyright 2016 byuu
|
|
|
|
SH assembler code partly based on x86 assembler code
|
|
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
|
|
|
|
2xSaI filter
|
|
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
|
|
|
|
HQ2x, HQ3x, HQ4x filters
|
|
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
|
|
|
|
NTSC filter
|
|
(c) Copyright 2006 - 2007 Shay Green
|
|
|
|
GTK+ GUI code
|
|
(c) Copyright 2004 - 2017 BearOso
|
|
|
|
Win32 GUI code
|
|
(c) Copyright 2003 - 2006 blip,
|
|
funkyass,
|
|
Matthew Kendora,
|
|
Nach,
|
|
nitsuja
|
|
(c) Copyright 2009 - 2017 OV2
|
|
|
|
Mac OS GUI code
|
|
(c) Copyright 1998 - 2001 John Stiles
|
|
(c) Copyright 2001 - 2011 zones
|
|
|
|
Libretro port
|
|
(c) Copyright 2011 - 2017 Hans-Kristian Arntzen,
|
|
Daniel De Matteis
|
|
(Under no circumstances will commercial rights be given)
|
|
|
|
|
|
Specific ports contains the works of other authors. See headers in
|
|
individual files.
|
|
|
|
|
|
Snes9x homepage: http://www.snes9x.com/
|
|
|
|
Permission to use, copy, modify and/or distribute Snes9x in both binary
|
|
and source form, for non-commercial purposes, is hereby granted without
|
|
fee, providing that this license information and copyright notice appear
|
|
with all copies and any derived work.
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event shall the authors be held liable for any damages
|
|
arising from the use of this software or it's derivatives.
|
|
|
|
Snes9x is freeware for PERSONAL USE only. Commercial users should
|
|
seek permission of the copyright holders first. Commercial use includes,
|
|
but is not limited to, charging money for Snes9x or software derived from
|
|
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
|
|
using Snes9x as a promotion for your commercial product.
|
|
|
|
The copyright holders request that bug fixes and improvements to the code
|
|
should be forwarded to them so everyone can benefit from the modifications
|
|
in future versions.
|
|
|
|
Super NES and Super Nintendo Entertainment System are trademarks of
|
|
Nintendo Co., Limited and its subsidiary companies.
|
|
***********************************************************************************/
|
|
|
|
#include "snes9x.h"
|
|
#include "memmap.h"
|
|
#include "cheats.h"
|
|
#include "bml.h"
|
|
|
|
static inline uint8 S9xGetByteFree (uint32 Address)
|
|
{
|
|
int block = (Address & 0xffffff) >> MEMMAP_SHIFT;
|
|
uint8 *GetAddress = Memory.Map[block];
|
|
uint8 byte;
|
|
|
|
if (GetAddress >= (uint8 *) CMemory::MAP_LAST)
|
|
{
|
|
byte = *(GetAddress + (Address & 0xffff));
|
|
return (byte);
|
|
}
|
|
|
|
switch ((pint) GetAddress)
|
|
{
|
|
case CMemory::MAP_CPU:
|
|
byte = S9xGetCPU(Address & 0xffff);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_PPU:
|
|
if (CPU.InDMAorHDMA && (Address & 0xff00) == 0x2100)
|
|
return (OpenBus);
|
|
|
|
byte = S9xGetPPU(Address & 0xffff);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_LOROM_SRAM:
|
|
case CMemory::MAP_SA1RAM:
|
|
// Address & 0x7fff : offset into bank
|
|
// Address & 0xff0000 : bank
|
|
// bank >> 1 | offset : SRAM address, unbound
|
|
// unbound & SRAMMask : SRAM offset
|
|
byte = *(Memory.SRAM + ((((Address & 0xff0000) >> 1) | (Address & 0x7fff)) & Memory.SRAMMask));
|
|
return (byte);
|
|
|
|
case CMemory::MAP_LOROM_SRAM_B:
|
|
byte = *(Multi.sramB + ((((Address & 0xff0000) >> 1) | (Address & 0x7fff)) & Multi.sramMaskB));
|
|
return (byte);
|
|
|
|
case CMemory::MAP_HIROM_SRAM:
|
|
case CMemory::MAP_RONLY_SRAM:
|
|
byte = *(Memory.SRAM + (((Address & 0x7fff) - 0x6000 + ((Address & 0xf0000) >> 3)) & Memory.SRAMMask));
|
|
return (byte);
|
|
|
|
case CMemory::MAP_BWRAM:
|
|
byte = *(Memory.BWRAM + ((Address & 0x7fff) - 0x6000));
|
|
return (byte);
|
|
|
|
case CMemory::MAP_DSP:
|
|
byte = S9xGetDSP(Address & 0xffff);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_SPC7110_ROM:
|
|
byte = S9xGetSPC7110Byte(Address);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_SPC7110_DRAM:
|
|
byte = S9xGetSPC7110(0x4800);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_C4:
|
|
byte = S9xGetC4(Address & 0xffff);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_OBC_RAM:
|
|
byte = S9xGetOBC1(Address & 0xffff);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_SETA_DSP:
|
|
byte = S9xGetSetaDSP(Address);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_SETA_RISC:
|
|
byte = S9xGetST018(Address);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_BSX:
|
|
byte = S9xGetBSX(Address);
|
|
return (byte);
|
|
|
|
case CMemory::MAP_NONE:
|
|
default:
|
|
byte = OpenBus;
|
|
return (byte);
|
|
}
|
|
}
|
|
|
|
static inline void S9xSetByteFree (uint8 Byte, uint32 Address)
|
|
{
|
|
int block = (Address & 0xffffff) >> MEMMAP_SHIFT;
|
|
uint8 *SetAddress = Memory.Map[block];
|
|
|
|
if (SetAddress >= (uint8 *) CMemory::MAP_LAST)
|
|
{
|
|
*(SetAddress + (Address & 0xffff)) = Byte;
|
|
return;
|
|
}
|
|
|
|
switch ((pint) SetAddress)
|
|
{
|
|
case CMemory::MAP_CPU:
|
|
S9xSetCPU(Byte, Address & 0xffff);
|
|
return;
|
|
|
|
case CMemory::MAP_PPU:
|
|
if (CPU.InDMAorHDMA && (Address & 0xff00) == 0x2100)
|
|
return;
|
|
|
|
S9xSetPPU(Byte, Address & 0xffff);
|
|
return;
|
|
|
|
case CMemory::MAP_LOROM_SRAM:
|
|
if (Memory.SRAMMask)
|
|
{
|
|
*(Memory.SRAM + ((((Address & 0xff0000) >> 1) | (Address & 0x7fff)) & Memory.SRAMMask)) = Byte;
|
|
CPU.SRAMModified = TRUE;
|
|
}
|
|
|
|
return;
|
|
|
|
case CMemory::MAP_LOROM_SRAM_B:
|
|
if (Multi.sramMaskB)
|
|
{
|
|
*(Multi.sramB + ((((Address & 0xff0000) >> 1) | (Address & 0x7fff)) & Multi.sramMaskB)) = Byte;
|
|
CPU.SRAMModified = TRUE;
|
|
}
|
|
|
|
return;
|
|
|
|
case CMemory::MAP_HIROM_SRAM:
|
|
if (Memory.SRAMMask)
|
|
{
|
|
*(Memory.SRAM + (((Address & 0x7fff) - 0x6000 + ((Address & 0xf0000) >> 3)) & Memory.SRAMMask)) = Byte;
|
|
CPU.SRAMModified = TRUE;
|
|
}
|
|
return;
|
|
|
|
case CMemory::MAP_BWRAM:
|
|
*(Memory.BWRAM + ((Address & 0x7fff) - 0x6000)) = Byte;
|
|
CPU.SRAMModified = TRUE;
|
|
return;
|
|
|
|
case CMemory::MAP_SA1RAM:
|
|
*(Memory.SRAM + (Address & 0xffff)) = Byte;
|
|
return;
|
|
|
|
case CMemory::MAP_DSP:
|
|
S9xSetDSP(Byte, Address & 0xffff);
|
|
return;
|
|
|
|
case CMemory::MAP_C4:
|
|
S9xSetC4(Byte, Address & 0xffff);
|
|
return;
|
|
|
|
case CMemory::MAP_OBC_RAM:
|
|
S9xSetOBC1(Byte, Address & 0xffff);
|
|
return;
|
|
|
|
case CMemory::MAP_SETA_DSP:
|
|
S9xSetSetaDSP(Byte, Address);
|
|
return;
|
|
|
|
case CMemory::MAP_SETA_RISC:
|
|
S9xSetST018(Byte, Address);
|
|
return;
|
|
|
|
case CMemory::MAP_BSX:
|
|
S9xSetBSX(Byte, Address);
|
|
return;
|
|
|
|
case CMemory::MAP_NONE:
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
void S9xInitWatchedAddress (void)
|
|
{
|
|
for (unsigned int i = 0; i < sizeof(watches) / sizeof(watches[0]); i++)
|
|
watches[i].on = false;
|
|
}
|
|
|
|
void S9xInitCheatData (void)
|
|
{
|
|
Cheat.RAM = Memory.RAM;
|
|
Cheat.SRAM = Memory.SRAM;
|
|
Cheat.FillRAM = Memory.FillRAM;
|
|
}
|
|
|
|
|
|
void S9xUpdateCheatInMemory (SCheat *c)
|
|
{
|
|
uint8 byte;
|
|
|
|
if (!c->enabled)
|
|
return;
|
|
|
|
byte = S9xGetByteFree (c->address);
|
|
|
|
if (byte != c->byte)
|
|
{
|
|
/* The game wrote a different byte to the address, update saved_byte */
|
|
c->saved_byte = byte;
|
|
|
|
if (c->conditional)
|
|
{
|
|
if (c->saved_byte != c->cond_byte && c->cond_true)
|
|
{
|
|
/* Condition is now false, let the byte stand */
|
|
c->cond_true = false;
|
|
}
|
|
else if (c->saved_byte == c->cond_byte && !c->cond_true)
|
|
{
|
|
c->cond_true = true;
|
|
S9xSetByteFree (c->byte, c->address);
|
|
}
|
|
}
|
|
else
|
|
S9xSetByteFree (c->byte, c->address);
|
|
}
|
|
else if (c->conditional)
|
|
{
|
|
if (byte == c->cond_byte)
|
|
{
|
|
c->cond_true = true;
|
|
c->saved_byte = byte;
|
|
S9xSetByteFree (c->byte, c->address);
|
|
}
|
|
}
|
|
}
|
|
|
|
void S9xDisableCheat (SCheat *c)
|
|
{
|
|
if (!c->enabled)
|
|
return;
|
|
|
|
if (!Cheat.enabled)
|
|
{
|
|
c->enabled = false;
|
|
return;
|
|
}
|
|
|
|
/* Make sure we restore the up-to-date written byte */
|
|
S9xUpdateCheatInMemory (c);
|
|
c->enabled = false;
|
|
|
|
if (c->conditional && !c->cond_true)
|
|
return;
|
|
|
|
S9xSetByteFree (c->saved_byte, c->address);
|
|
c->cond_true = false;
|
|
}
|
|
|
|
void S9xDeleteCheatGroup (uint32 g)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (g >= Cheat.g.size ())
|
|
return;
|
|
|
|
for (i = 0; i < Cheat.g[g].c.size (); i++)
|
|
{
|
|
S9xDisableCheat (&Cheat.g[g].c[i]);
|
|
}
|
|
|
|
delete[] Cheat.g[g].name;
|
|
|
|
Cheat.g.erase (Cheat.g.begin () + g);
|
|
}
|
|
|
|
void S9xDeleteCheats (void)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < Cheat.g.size (); i++)
|
|
{
|
|
S9xDisableCheatGroup (i);
|
|
|
|
delete[] Cheat.g[i].name;
|
|
}
|
|
|
|
Cheat.g.clear ();
|
|
}
|
|
|
|
void S9xEnableCheat (SCheat *c)
|
|
{
|
|
uint8 byte;
|
|
|
|
if (c->enabled)
|
|
return;
|
|
|
|
c->enabled = true;
|
|
|
|
if (!Cheat.enabled)
|
|
return;
|
|
|
|
byte = S9xGetByteFree(c->address);
|
|
|
|
if (c->conditional)
|
|
{
|
|
if (byte != c->cond_byte)
|
|
return;
|
|
|
|
c->cond_true = true;
|
|
}
|
|
|
|
c->saved_byte = byte;
|
|
S9xSetByteFree (c->byte, c->address);
|
|
}
|
|
|
|
void S9xEnableCheatGroup (uint32 num)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < Cheat.g[num].c.size (); i++)
|
|
{
|
|
S9xEnableCheat (&Cheat.g[num].c[i]);
|
|
}
|
|
|
|
Cheat.g[num].enabled = true;
|
|
}
|
|
|
|
void S9xDisableCheatGroup (uint32 num)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < Cheat.g[num].c.size (); i++)
|
|
{
|
|
S9xDisableCheat (&Cheat.g[num].c[i]);
|
|
}
|
|
|
|
Cheat.g[num].enabled = false;
|
|
}
|
|
|
|
SCheat S9xTextToCheat (char *text)
|
|
{
|
|
SCheat c;
|
|
unsigned int byte = 0;
|
|
unsigned int cond_byte = 0;
|
|
|
|
c.enabled = false;
|
|
c.conditional = false;
|
|
|
|
if (!S9xGameGenieToRaw (text, c.address, c.byte))
|
|
{
|
|
byte = c.byte;
|
|
}
|
|
|
|
else if (!S9xProActionReplayToRaw (text, c.address, c.byte))
|
|
{
|
|
byte = c.byte;
|
|
}
|
|
|
|
else if (sscanf (text, "%x=%x?%x", &c.address, &cond_byte, &byte) == 3)
|
|
{
|
|
c.conditional = true;
|
|
}
|
|
|
|
else if (sscanf (text, "%x=%x", &c.address, &byte) == 2)
|
|
{
|
|
}
|
|
|
|
else if (sscanf (text, "%x/%x/%x", &c.address, &cond_byte, &byte) == 3)
|
|
{
|
|
c.conditional = true;
|
|
}
|
|
|
|
else if (sscanf (text, "%x/%x", &c.address, &byte) == 2)
|
|
{
|
|
}
|
|
|
|
else
|
|
{
|
|
c.address = 0;
|
|
byte = 0;
|
|
}
|
|
|
|
c.byte = byte;
|
|
c.cond_byte = cond_byte;
|
|
|
|
return c;
|
|
}
|
|
|
|
SCheatGroup S9xCreateCheatGroup (const char *name, const char *cheat)
|
|
{
|
|
SCheatGroup g;
|
|
char *code;
|
|
char *code_string = strdup (cheat);
|
|
|
|
g.name = strdup (name);
|
|
g.enabled = false;
|
|
|
|
for (code = strtok (code_string, "+"); code; code = strtok (NULL, "+"))
|
|
{
|
|
if (code)
|
|
{
|
|
SCheat c = S9xTextToCheat (code);
|
|
if (c.address)
|
|
g.c.push_back (c);
|
|
}
|
|
}
|
|
|
|
delete[] code_string;
|
|
|
|
return g;
|
|
}
|
|
|
|
int S9xAddCheatGroup (const char *name, const char *cheat)
|
|
{
|
|
SCheatGroup g = S9xCreateCheatGroup (name, cheat);
|
|
if (g.c.size () == 0)
|
|
return -1;
|
|
|
|
Cheat.g.push_back (S9xCreateCheatGroup (name, cheat));
|
|
|
|
return Cheat.g.size () - 1;
|
|
}
|
|
|
|
int S9xModifyCheatGroup (uint32 num, const char *name, const char *cheat)
|
|
{
|
|
if (num >= Cheat.g.size())
|
|
return -1;
|
|
|
|
S9xDisableCheatGroup (num);
|
|
delete[] Cheat.g[num].name;
|
|
|
|
Cheat.g[num] = S9xCreateCheatGroup (name, cheat);
|
|
|
|
return num;
|
|
}
|
|
|
|
char *S9xCheatToText (SCheat *c)
|
|
{
|
|
int size = 10; /* 6 address, 1 =, 2 byte, 1 NUL */
|
|
char *text;
|
|
|
|
if (c->conditional)
|
|
size += 3; /* additional 2 byte, 1 ? */
|
|
|
|
text = new char[size];
|
|
|
|
if (c->conditional)
|
|
snprintf (text, size, "%x=%x?%x", c->address, c->cond_byte, c->byte);
|
|
else
|
|
snprintf (text, size, "%x=%x", c->address, c->byte);
|
|
|
|
return text;
|
|
}
|
|
|
|
char *S9xCheatGroupToText (SCheatGroup *g)
|
|
{
|
|
std::string text = "";
|
|
unsigned int i;
|
|
|
|
if (g->c.size () == 0)
|
|
return NULL;
|
|
|
|
for (i = 0; i < g->c.size (); i++)
|
|
{
|
|
char *tmp = S9xCheatToText (&g->c[i]);
|
|
if (i != 0)
|
|
text += '+';
|
|
text += tmp;
|
|
delete[] tmp;
|
|
}
|
|
|
|
return strdup (text.c_str ());
|
|
}
|
|
|
|
char *S9xCheatValidate (char *code_string)
|
|
{
|
|
SCheatGroup g = S9xCreateCheatGroup ("temp", code_string);
|
|
|
|
delete[] g.name;
|
|
|
|
if (g.c.size() > 0)
|
|
{
|
|
return S9xCheatGroupToText (&g);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
char *S9xCheatGroupToText (uint32 num)
|
|
{
|
|
if (num >= Cheat.g.size ())
|
|
return NULL;
|
|
|
|
return S9xCheatGroupToText (&Cheat.g[num]);
|
|
}
|
|
|
|
void S9xUpdateCheatsInMemory (void)
|
|
{
|
|
unsigned int i;
|
|
unsigned int j;
|
|
|
|
if (!Cheat.enabled)
|
|
return;
|
|
|
|
for (i = 0; i < Cheat.g.size (); i++)
|
|
{
|
|
for (j = 0; j < Cheat.g[i].c.size (); j++)
|
|
{
|
|
S9xUpdateCheatInMemory (&Cheat.g[i].c[j]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int S9xCheatIsDuplicate (char *name, char *code)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < Cheat.g.size(); i++)
|
|
{
|
|
if (!strcmp (name, Cheat.g[i].name))
|
|
{
|
|
char *code_string = S9xCheatGroupToText (i);
|
|
char *validated = S9xCheatValidate (code);
|
|
|
|
if (validated && !strcmp (code_string, validated))
|
|
{
|
|
free (code_string);
|
|
free (validated);
|
|
return TRUE;
|
|
}
|
|
|
|
free (code_string);
|
|
free (validated);
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void S9xLoadCheatsFromBMLNode (bml_node *n)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < n->child.size (); i++)
|
|
{
|
|
if (!strcasecmp (n->child[i]->name, "cheat"))
|
|
{
|
|
char *desc = NULL;
|
|
char *code = NULL;
|
|
bool8 enabled = false;
|
|
|
|
bml_node *c = n->child[i];
|
|
bml_node *tmp = NULL;
|
|
|
|
tmp = bml_find_sub(c, "description");
|
|
desc = tmp->data;
|
|
if (!desc)
|
|
desc = (char *) "";
|
|
|
|
tmp = bml_find_sub(c, "code");
|
|
code = tmp->data;
|
|
|
|
if (bml_find_sub(c, "enabled"))
|
|
enabled = true;
|
|
|
|
if (code && !S9xCheatIsDuplicate (desc, code))
|
|
{
|
|
int index = S9xAddCheatGroup (desc, code);
|
|
|
|
if (enabled)
|
|
S9xEnableCheatGroup (index);
|
|
}
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
bool8 S9xLoadCheatFileClassic (const char *filename)
|
|
{
|
|
FILE *fs;
|
|
uint8 data[28];
|
|
|
|
fs = fopen(filename, "rb");
|
|
if (!fs)
|
|
return (FALSE);
|
|
|
|
while (fread ((void *) data, 1, 28, fs) == 28)
|
|
{
|
|
SCheat c;
|
|
char name[21];
|
|
char cheat[10];
|
|
c.enabled = (data[0] & 4) == 0;
|
|
c.byte = data[1];
|
|
c.address = data[2] | (data[3] << 8) | (data[4] << 16);
|
|
memcpy (name, &data[8], 20);
|
|
name[20] = 0;
|
|
|
|
snprintf (cheat, 21, "%x=%x", c.address, c.byte);
|
|
S9xAddCheatGroup (name, cheat);
|
|
|
|
if (c.enabled)
|
|
S9xEnableCheatGroup (Cheat.g.size () - 1);
|
|
}
|
|
|
|
fclose(fs);
|
|
|
|
return (TRUE);
|
|
}
|
|
|
|
bool8 S9xLoadCheatFile (const char *filename)
|
|
{
|
|
bml_node *bml = NULL;
|
|
bml_node *n = NULL;
|
|
|
|
bml = bml_parse_file (filename);
|
|
if (!bml)
|
|
{
|
|
return S9xLoadCheatFileClassic (filename);
|
|
}
|
|
|
|
n = bml_find_sub (bml, "cartridge");
|
|
if (n)
|
|
{
|
|
S9xLoadCheatsFromBMLNode (n);
|
|
}
|
|
|
|
bml_free_node (bml);
|
|
|
|
if (!n)
|
|
{
|
|
return S9xLoadCheatFileClassic (filename);
|
|
}
|
|
|
|
return (TRUE);
|
|
}
|
|
|
|
bool8 S9xSaveCheatFile (const char *filename)
|
|
{
|
|
unsigned int i;
|
|
FILE *file = NULL;
|
|
|
|
if (Cheat.g.size () == 0)
|
|
{
|
|
remove (filename);
|
|
return TRUE;
|
|
}
|
|
|
|
file = fopen (filename, "w");
|
|
|
|
if (!file)
|
|
return FALSE;
|
|
|
|
fprintf (file, "cartridge sha256=");
|
|
for (i = 0; i < 32; i++)
|
|
fprintf (file, "%02x", Memory.ROMSHA256[i]);
|
|
fprintf (file, "\n");
|
|
|
|
for (i = 0; i < Cheat.g.size (); i++)
|
|
{
|
|
char *txt = S9xCheatGroupToText (i);
|
|
|
|
fprintf (file,
|
|
" cheat%s\n"
|
|
" description: %s\n"
|
|
" code: %s\n",
|
|
(Cheat.g[i].enabled ? " enabled" : ""),
|
|
(Cheat.g[i].name ? Cheat.g[i].name : ""),
|
|
txt);
|
|
|
|
delete[] txt;
|
|
}
|
|
|
|
fclose (file);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void S9xCheatsDisable (void)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (!Cheat.enabled)
|
|
return;
|
|
|
|
for (i = 0; i < Cheat.g.size (); i++)
|
|
{
|
|
if (Cheat.g[i].enabled)
|
|
{
|
|
S9xDisableCheatGroup (i);
|
|
Cheat.g[i].enabled = TRUE;
|
|
}
|
|
}
|
|
|
|
Cheat.enabled = FALSE;
|
|
}
|
|
|
|
void S9xCheatsEnable (void)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (Cheat.enabled)
|
|
return;
|
|
|
|
Cheat.enabled = TRUE;
|
|
|
|
for (i = 0; i < Cheat.g.size (); i++)
|
|
{
|
|
if (Cheat.g[i].enabled)
|
|
{
|
|
Cheat.g[i].enabled = FALSE;
|
|
S9xEnableCheatGroup (i);
|
|
}
|
|
}
|
|
}
|
|
|
|
int S9xImportCheatsFromDatabase (const char *filename)
|
|
{
|
|
bml_node *bml;
|
|
char sha256_txt[65];
|
|
char hextable[] = "0123456789abcdef";
|
|
unsigned int i;
|
|
|
|
bml = bml_parse_file (filename);
|
|
|
|
if (!bml)
|
|
return -1; /* No file */
|
|
|
|
for (i = 0; i < 32; i++)
|
|
{
|
|
sha256_txt[i * 2] = hextable[Memory.ROMSHA256[i] >> 4];
|
|
sha256_txt[i * 2 + 1] = hextable[Memory.ROMSHA256[i] & 0xf];
|
|
}
|
|
sha256_txt[64] = '\0';
|
|
|
|
for (i = 0; i < bml->child.size (); i++)
|
|
{
|
|
if (!strcasecmp (bml->child[i]->name, "cartridge"))
|
|
{
|
|
bml_node *n;
|
|
|
|
if ((n = bml_find_sub (bml->child[i], "sha256")))
|
|
{
|
|
if (!strcasecmp (n->data, sha256_txt))
|
|
{
|
|
S9xLoadCheatsFromBMLNode (bml->child[i]);
|
|
bml_free_node (bml);
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bml_free_node (bml);
|
|
|
|
return -2; /* No codes */
|
|
}
|