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authoraliaspider2014-10-29 05:36:07 +0100
committeraliaspider2014-10-29 05:36:07 +0100
commita6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a (patch)
tree6f82417b0ab41f3887dd025ee3b85254e28143da /source/cheats.cpp
parent1d98e1c317fa19687ae6bc3cb8e550ef7531bf02 (diff)
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start moving everything to C
Diffstat (limited to 'source/cheats.cpp')
-rw-r--r--source/cheats.cpp442
1 files changed, 0 insertions, 442 deletions
diff --git a/source/cheats.cpp b/source/cheats.cpp
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-/*******************************************************************************
- Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
-
- (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
- Jerremy Koot (jkoot@snes9x.com)
-
- (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
-
- (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
- funkyass (funkyass@spam.shaw.ca),
- Joel Yliluoma (http://iki.fi/bisqwit/)
- Kris Bleakley (codeviolation@hotmail.com),
- Matthew Kendora,
- Nach (n-a-c-h@users.sourceforge.net),
- Peter Bortas (peter@bortas.org) and
- zones (kasumitokoduck@yahoo.com)
-
- C4 x86 assembler and some C emulation code
- (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
- _Demo_ (_demo_@zsnes.com), and Nach
-
- C4 C++ code
- (c) Copyright 2003 Brad Jorsch
-
- DSP-1 emulator code
- (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
- John Weidman, neviksti (neviksti@hotmail.com),
- Kris Bleakley, Andreas Naive
-
- DSP-2 emulator code
- (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
- Lord Nightmare (lord_nightmare@users.sourceforge.net
-
- OBC1 emulator code
- (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
- Kris Bleakley
- Ported from x86 assembler to C by sanmaiwashi
-
- SPC7110 and RTC C++ emulator code
- (c) Copyright 2002 Matthew Kendora with research by
- zsKnight, John Weidman, and Dark Force
-
- S-DD1 C emulator code
- (c) Copyright 2003 Brad Jorsch with research by
- Andreas Naive and John Weidman
-
- S-RTC C emulator code
- (c) Copyright 2001 John Weidman
-
- ST010 C++ emulator code
- (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
-
- Super FX x86 assembler emulator code
- (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
-
- Super FX C emulator code
- (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
-
-
- SH assembler code partly based on x86 assembler code
- (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
-
-
- Specific ports contains the works of other authors. See headers in
- individual files.
-
- Snes9x homepage: http://www.snes9x.com
-
- Permission to use, copy, modify and distribute Snes9x in both binary and
- source form, for non-commercial purposes, is hereby granted without fee,
- providing that this license information and copyright notice appear with
- all copies and any derived work.
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event shall the authors be held liable for any damages
- arising from the use of this software.
-
- Snes9x is freeware for PERSONAL USE only. Commercial users should
- seek permission of the copyright holders first. Commercial use includes
- charging money for Snes9x or software derived from Snes9x.
-
- The copyright holders request that bug fixes and improvements to the code
- should be forwarded to them so everyone can benefit from the modifications
- in future versions.
-
- Super NES and Super Nintendo Entertainment System are trademarks of
- Nintendo Co., Limited and its subsidiary companies.
-*******************************************************************************/
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include "snes9x.h"
-#include "cheats.h"
-#include "memmap.h"
-
-static bool8 S9xAllHex (const char *code, int len)
-{
- for (int i = 0; i < len; i++)
- if ((code [i] < '0' || code [i] > '9') &&
- (code [i] < 'a' || code [i] > 'f') &&
- (code [i] < 'A' || code [i] > 'F'))
- return (FALSE);
-
- return (TRUE);
-}
-
-const char *S9xProActionReplayToRaw (const char *code, uint32 *address, uint8 *byte)
-{
- uint32 data = 0;
- if (strlen (code) != 8 || !S9xAllHex (code, 8) ||
- sscanf (code, "%x", &data) != 1)
- return ("Invalid Pro Action Replay code - should be 8 hex digits in length.");
-
- *address = data >> 8;
- *byte = (uint8) data;
- return (NULL);
-}
-
-const char *S9xGoldFingerToRaw (const char *code, uint32 *address, bool8 *sram,
- uint8 *num_bytes, uint8 bytes[3])
-{
- char tmp [15];
- if (strlen (code) != 14)
- return ("Invalid Gold Finger code should be 14 hex digits in length.");
-
- strncpy (tmp, code, 5);
- tmp [5] = 0;
- if (sscanf (tmp, "%x", address) != 1)
- return ("Invalid Gold Finger code.");
-
- int i;
- for (i = 0; i < 3; i++)
- {
- strncpy (tmp, code + 5 + i * 2, 2);
- tmp [2] = 0;
- int byte;
- if (sscanf (tmp, "%x", &byte) != 1)
- break;
- bytes [i] = (uint8) byte;
- }
- *num_bytes = i;
- *sram = code [13] == '1';
- return (NULL);
-}
-
-const char *S9xGameGenieToRaw (const char *code, uint32 *address, uint8 *byte)
-{
- char new_code [12];
-
- if (strlen (code) != 9 || *(code + 4) != '-' || !S9xAllHex (code, 4) ||
- !S9xAllHex (code + 5, 4))
- return ("Invalid Game Genie(tm) code - should be 'xxxx-xxxx'.");
-
- strcpy (new_code, "0x");
- strncpy (new_code + 2, code, 4);
- strcpy (new_code + 6, code + 5);
-
- static char *real_hex = "0123456789ABCDEF";
- static char *genie_hex = "DF4709156BC8A23E";
-
- for (int i = 2; i < 10; i++)
- {
- if (islower (new_code [i]))
- new_code [i] = toupper (new_code [i]);
- int j;
- for (j = 0; j < 16; j++)
- {
- if (new_code [i] == genie_hex [j])
- {
- new_code [i] = real_hex [j];
- break;
- }
- }
- if (j == 16)
- return ("Invalid hex-character in Game Genie(tm) code");
- }
- uint32 data = 0;
- sscanf (new_code, "%x", &data);
- *byte = (uint8)(data >> 24);
- *address = ((data & 0x003c00) << 10) +
- ((data & 0x00003c) << 14) +
- ((data & 0xf00000) >> 8) +
- ((data & 0x000003) << 10) +
- ((data & 0x00c000) >> 6) +
- ((data & 0x0f0000) >> 12) +
- ((data & 0x0003c0) >> 6);
-
- return (NULL);
-}
-
-void S9xStartCheatSearch (SCheatData *d)
-{
- // memmove may be required: Source is usually a different malloc, but could be pointed to d->CWRAM [Neb]
- memmove (d->CWRAM, d->RAM, 0x20000);
- // memmove may be required: Source is usually a different malloc, but could be pointed to d->CSRAM [Neb]
- memmove (d->CSRAM, d->SRAM, 0x10000);
- // memmove may be required: Source is usually a different malloc, but could be pointed to d->CIRAM [Neb]
- memmove (d->CIRAM, &d->FillRAM [0x3000], 0x2000);
- memset ((char *) d->WRAM_BITS, 0xff, 0x20000 >> 3);
- memset ((char *) d->SRAM_BITS, 0xff, 0x10000 >> 3);
- memset ((char *) d->IRAM_BITS, 0xff, 0x2000 >> 3);
-}
-
-#define BIT_CLEAR(a,v) \
-(a)[(v) >> 5] &= ~(1 << ((v) & 31))
-
-#define BIT_SET(a,v) \
-(a)[(v) >> 5] |= 1 << ((v) & 31)
-
-#define TEST_BIT(a,v) \
-((a)[(v) >> 5] & (1 << ((v) & 31)))
-
-#define _C(c,a,b) \
-((c) == S9X_LESS_THAN ? (a) < (b) : \
- (c) == S9X_GREATER_THAN ? (a) > (b) : \
- (c) == S9X_LESS_THAN_OR_EQUAL ? (a) <= (b) : \
- (c) == S9X_GREATER_THAN_OR_EQUAL ? (a) >= (b) : \
- (c) == S9X_EQUAL ? (a) == (b) : \
- (a) != (b))
-
-#define _D(s,m,o) \
-((s) == S9X_8_BITS ? (uint8) (*((m) + (o))) : \
- (s) == S9X_16_BITS ? ((uint16) (*((m) + (o)) + (*((m) + (o) + 1) << 8))) : \
- (s) == S9X_24_BITS ? ((uint32) (*((m) + (o)) + (*((m) + (o) + 1) << 8) + (*((m) + (o) + 2) << 16))) : \
-((uint32) (*((m) + (o)) + (*((m) + (o) + 1) << 8) + (*((m) + (o) + 2) << 16) + (*((m) + (o) + 3) << 24))))
-
-#define _DS(s,m,o) \
-((s) == S9X_8_BITS ? ((int8) *((m) + (o))) : \
- (s) == S9X_16_BITS ? ((int16) (*((m) + (o)) + (*((m) + (o) + 1) << 8))) : \
- (s) == S9X_24_BITS ? (((int32) ((*((m) + (o)) + (*((m) + (o) + 1) << 8) + (*((m) + (o) + 2) << 16)) << 8)) >> 8): \
- ((int32) (*((m) + (o)) + (*((m) + (o) + 1) << 8) + (*((m) + (o) + 2) << 16) + (*((m) + (o) + 3) << 24))))
-
-void S9xSearchForChange (SCheatData *d, S9xCheatComparisonType cmp,
- S9xCheatDataSize size, bool8 is_signed, bool8 update)
-{
- int l;
-
- switch (size)
- {
- case S9X_8_BITS: l = 0; break;
- case S9X_16_BITS: l = 1; break;
- case S9X_24_BITS: l = 2; break;
- default:
- case S9X_32_BITS: l = 3; break;
- }
-
- int i;
- if (is_signed)
- {
- for (i = 0; i < 0x20000 - l; i++)
- {
- if (TEST_BIT (d->WRAM_BITS, i) &&
- _C(cmp, _DS(size, d->RAM, i), _DS(size, d->CWRAM, i)))
- {
- if (update)
- d->CWRAM [i] = d->RAM [i];
- }
- else
- BIT_CLEAR (d->WRAM_BITS, i);
- }
-
- for (i = 0; i < 0x10000 - l; i++)
- {
- if (TEST_BIT (d->SRAM_BITS, i) &&
- _C(cmp, _DS(size, d->SRAM, i), _DS(size, d->CSRAM, i)))
- {
- if (update)
- d->CSRAM [i] = d->SRAM [i];
- }
- else
- BIT_CLEAR (d->SRAM_BITS, i);
- }
-
- for (i = 0; i < 0x2000 - l; i++)
- {
- if (TEST_BIT (d->IRAM_BITS, i) &&
- _C(cmp, _DS(size, d->FillRAM + 0x3000, i), _DS(size, d->CIRAM, i)))
- {
- if (update)
- d->CIRAM [i] = d->FillRAM [i + 0x3000];
- }
- else
- BIT_CLEAR (d->IRAM_BITS, i);
- }
- }
- else
- {
- for (i = 0; i < 0x20000 - l; i++)
- {
- if (TEST_BIT (d->WRAM_BITS, i) &&
- _C(cmp, _D(size, d->RAM, i), _D(size, d->CWRAM, i)))
- {
- if (update)
- d->CWRAM [i] = d->RAM [i];
- }
- else
- BIT_CLEAR (d->WRAM_BITS, i);
- }
-
- for (i = 0; i < 0x10000 - l; i++)
- {
- if (TEST_BIT (d->SRAM_BITS, i) &&
- _C(cmp, _D(size, d->SRAM, i), _D(size, d->CSRAM, i)))
- {
- if (update)
- d->CSRAM [i] = d->SRAM [i];
- }
- else
- BIT_CLEAR (d->SRAM_BITS, i);
- }
-
- for (i = 0; i < 0x2000 - l; i++)
- {
- if (TEST_BIT (d->IRAM_BITS, i) &&
- _C(cmp, _D(size, d->FillRAM + 0x3000, i), _D(size, d->CIRAM, i)))
- {
- if (update)
- d->CIRAM [i] = d->FillRAM [i + 0x3000];
- }
- else
- BIT_CLEAR (d->IRAM_BITS, i);
- }
- }
-}
-
-void S9xSearchForValue (SCheatData *d, S9xCheatComparisonType cmp,
- S9xCheatDataSize size, uint32 value,
- bool8 is_signed, bool8 update)
-{
- int l;
-
- switch (size)
- {
- case S9X_8_BITS: l = 0; break;
- case S9X_16_BITS: l = 1; break;
- case S9X_24_BITS: l = 2; break;
- default:
- case S9X_32_BITS: l = 3; break;
- }
-
- int i;
-
- if (is_signed)
- {
- for (i = 0; i < 0x20000 - l; i++)
- {
- if (TEST_BIT (d->WRAM_BITS, i) &&
- _C(cmp, _DS(size, d->RAM, i), (int32) value))
- {
- if (update)
- d->CWRAM [i] = d->RAM [i];
- }
- else
- BIT_CLEAR (d->WRAM_BITS, i);
- }
-
- for (i = 0; i < 0x10000 - l; i++)
- {
- if (TEST_BIT (d->SRAM_BITS, i) &&
- _C(cmp, _DS(size, d->SRAM, i), (int32) value))
- {
- if (update)
- d->CSRAM [i] = d->SRAM [i];
- }
- else
- BIT_CLEAR (d->SRAM_BITS, i);
- }
-
- for (i = 0; i < 0x2000 - l; i++)
- {
- if (TEST_BIT (d->IRAM_BITS, i) &&
- _C(cmp, _DS(size, d->FillRAM + 0x3000, i), (int32) value))
- {
- if (update)
- d->CIRAM [i] = d->FillRAM [i + 0x3000];
- }
- else
- BIT_CLEAR (d->IRAM_BITS, i);
- }
- }
- else
- {
- for (i = 0; i < 0x20000 - l; i++)
- {
- if (TEST_BIT (d->WRAM_BITS, i) &&
- _C(cmp, _D(size, d->RAM, i), value))
- {
- if (update)
- d->CWRAM [i] = d->RAM [i];
- }
- else
- BIT_CLEAR (d->WRAM_BITS, i);
- }
-
- for (i = 0; i < 0x10000 - l; i++)
- {
- if (TEST_BIT (d->SRAM_BITS, i) &&
- _C(cmp, _D(size, d->SRAM, i), value))
- {
- if (update)
- d->CSRAM [i] = d->SRAM [i];
- }
- else
- BIT_CLEAR (d->SRAM_BITS, i);
- }
-
- for (i = 0; i < 0x2000 - l; i++)
- {
- if (TEST_BIT (d->IRAM_BITS, i) &&
- _C(cmp, _D(size, d->FillRAM + 0x3000, i), value))
- {
- if (update)
- d->CIRAM [i] = d->FillRAM [i + 0x3000];
- }
- else
- BIT_CLEAR (d->IRAM_BITS, i);
- }
- }
-}
-
-void S9xOutputCheatSearchResults (SCheatData *d)
-{
- int i;
- for (i = 0; i < 0x20000; i++)
- {
- if (TEST_BIT (d->WRAM_BITS, i))
- printf ("WRAM: %05x: %02x\n", i, d->RAM [i]);
- }
-
- for (i = 0; i < 0x10000; i++)
- {
- if (TEST_BIT (d->SRAM_BITS, i))
- printf ("SRAM: %04x: %02x\n", i, d->SRAM [i]);
- }
-
- for (i = 0; i < 0x2000; i++)
- {
- if (TEST_BIT (d->IRAM_BITS, i))
- printf ("IRAM: %05x: %02x\n", i, d->FillRAM [i + 0x3000]);
- }
-}
-