1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* 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).
*
* 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];
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";
int i;
for (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 & 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);
}
|
