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/*
* Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
*
* (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and
* Jerremy Koot (jkoot@snes9x.com)
*
* Super FX C emulator code
* (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and
* Gary Henderson.
* Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
*
* DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
* C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
* C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).
*
* (c) Copyright 2014 - 2016 Daniel De Matteis. (UNDER NO CIRCUMSTANCE
* WILL COMMERCIAL RIGHTS EVER BE APPROPRIATED TO ANY PARTY)
*
* DOS port code 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)
{
int i;
for (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];
int i;
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.");
for (i = 0; i < 3; i++)
{
int byte;
strncpy(tmp, code + 5 + i * 2, 2);
tmp [2] = 0;
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)
{
uint32 data = 0;
char new_code [12];
static char* real_hex = "0123456789ABCDEF";
static char* genie_hex = "DF4709156BC8A23E";
int i;
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);
for (i = 2; i < 10; i++)
{
int j;
if (islower(new_code [i]))
new_code [i] = toupper(new_code [i]);
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");
}
sscanf(new_code, "%x", &data);
*byte = (uint8)(data >> 24);
*address = data & 0xffffff;
*address = ((*address & 0x003c00) << 10) +
((*address & 0x00003c) << 14) +
((*address & 0xf00000) >> 8) +
((*address & 0x000003) << 10) +
((*address & 0x00c000) >> 6) +
((*address & 0x0f0000) >> 12) +
((*address & 0x0003c0) >> 6);
return (NULL);
}
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