// Sample Input for Saturn:
// 160949FC 0090
// Address: 0949FC
// Value: 90
// Note, 3XXXXXXX are Big Endian
// Remove first two octets
public static IDecodeResult Decode(string code)
{
if (code == null)
{
throw new ArgumentNullException(nameof(code));
}
if (code.IndexOf(" ") != 8)
{
return(new InvalidCheatCode("All Saturn GameShark Codes need to contain a space after the eighth character."));
}
if (code.Length != 13)
{
return(new InvalidCheatCode("All Saturn GameShark Cheats need to be 13 characters in length."));
}
var result = new DecodeResult {
Size = WatchSize.Word
};
// Only the first character really matters? 16 or 36?
var test = code.Remove(2, 11).Remove(1, 1);
if (test == "3")
{
result.Size = WatchSize.Byte;
}
var s = code.Remove(0, 2);
result.Address = int.Parse(s.Remove(6, 5), NumberStyles.HexNumber);
result.Value = int.Parse(s.Remove(0, 7));
return(result);
}
// 30XXXXXX 00YY
public static IDecodeResult Decode(string code)
{
if (code == null)
{
throw new ArgumentNullException(nameof(code));
}
if (code.IndexOf(" ") != 8)
{
return(new InvalidCheatCode("All PSX GameShark Codes need to contain a space after the eighth character."));
}
if (code.Length != 13)
{
return(new InvalidCheatCode("All PSX GameShark Cheats need to be 13 characters in length."));
}
var result = new DecodeResult();
var type = code.Substring(0, 2);
result.Size = type switch
{
"10" => WatchSize.Word,
"11" => WatchSize.Word,
"20" => WatchSize.Byte,
"21" => WatchSize.Byte,
"30" => WatchSize.Byte,
"80" => WatchSize.Word,
"D0" => WatchSize.Word,
"D1" => WatchSize.Word,
"D2" => WatchSize.Word,
"D3" => WatchSize.Word,
"D4" => WatchSize.Word,
"D5" => WatchSize.Word,
"D6" => WatchSize.Word,
"E0" => WatchSize.Byte,
"E1" => WatchSize.Byte,
"E2" => WatchSize.Byte,
"E3" => WatchSize.Byte,
_ => WatchSize.Byte
};
var s = code.Remove(0, 2);
result.Address = int.Parse(s.Remove(6, 5), NumberStyles.HexNumber);
result.Value = int.Parse(s.Remove(0, 7), NumberStyles.HexNumber);
return(result);
}
}
public static Cheat ToCheat(this DecodeResult result, MemoryDomain domain, string description)
{
var watch = Watch.GenerateWatch(
domain,
result.Address,
result.Size,
DisplayType.Hex,
domain.EndianType == MemoryDomain.Endian.Big,
description);
return(result.Compare.HasValue
? new Cheat(watch, result.Value, result.Compare.Value, true, Cheat.CompareType.Equal)
: new Cheat(watch, result.Value));
}
// Sample Input for GB/GBC:
// 010FF6C1
// Becomes:
// Address C1F6
// Value 0F
public static IDecodeResult Decode(string code)
{
if (code == null)
{
throw new ArgumentNullException(nameof(code));
}
if (code.Length != 8 || code.Contains("-"))
{
return(new InvalidCheatCode("GameShark codes must be 8 characters with no dashes."));
}
var test = code.Substring(0, 2);
if (test != "00" && test != "01")
{
return(new InvalidCheatCode("All GameShark Codes for GameBoy need to start with 00 or 01"));
}
var result = new DecodeResult {
Size = WatchSize.Byte
};
code = code.Remove(0, 2);
var valueStr = code.Remove(2, 4);
code = code.Remove(0, 2);
var addrStr = code.Remove(0, 2);
addrStr += code.Remove(2, 2);
result.Value = int.Parse(valueStr, NumberStyles.HexNumber);
result.Address = int.Parse(addrStr, NumberStyles.HexNumber);
return(result);
}
public static IDecodeResult Decode(string code)
{
if (code == null)
{
throw new ArgumentNullException(nameof(code));
}
if (code.IndexOf("-") != 3 && code.Length != 9)
{
return(new InvalidCheatCode("Action Replay Codes must be 9 characters with a dash after the third character"));
}
var result = new DecodeResult {
Size = WatchSize.Byte
};
var s = code.Remove(0, 2);
var ramAddress = s.Remove(4, 2).Replace("-", "");
var ramValue = s.Remove(0, 5);
result.Address = int.Parse(ramAddress, NumberStyles.HexNumber);
result.Value = int.Parse(ramValue, NumberStyles.HexNumber);
return(result);
}
public static IDecodeResult Decode(string code)
{
if (code == null)
{
throw new ArgumentNullException(nameof(code));
}
if (!code.Contains("-") && code.Length != 9)
{
return new InvalidCheatCode("Game genie codes must be 9 characters with a format of xxyy-yyyy");
}
// Code: D F 4 7 0 9 1 5 6 B C 8 A 2 3 E
// Hex: 0 1 2 3 4 5 6 7 8 9 A B C D E F
// XXYY-YYYY, where XX is the value, and YY-YYYY is the address.
// Char # | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
// Bit # |3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|
// maps to| Value |i|j|k|l|q|r|s|t|o|p|a|b|c|d|u|v|w|x|e|f|g|h|m|n|
// order | Value |a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|
var result = new DecodeResult { Size = WatchSize.Byte };
int x;
// Value
if (code.Length > 0)
{
SNESGameGenieTable.TryGetValue(code[0], out x);
result.Value = x << 4;
}
if (code.Length > 1)
{
SNESGameGenieTable.TryGetValue(code[1], out x);
result.Value |= x;
}
// Address
if (code.Length > 2)
{
SNESGameGenieTable.TryGetValue(code[2], out x);
result.Address = x << 12;
}
if (code.Length > 3)
{
SNESGameGenieTable.TryGetValue(code[3], out x);
result.Address |= x << 4;
}
if (code.Length > 4)
{
SNESGameGenieTable.TryGetValue(code[4], out x);
result.Address |= (x & 0xC) << 6;
result.Address |= (x & 0x3) << 22;
}
if (code.Length > 5)
{
SNESGameGenieTable.TryGetValue(code[5], out x);
result.Address |= (x & 0xC) << 18;
result.Address |= (x & 0x3) << 2;
}
if (code.Length > 6)
{
SNESGameGenieTable.TryGetValue(code[6], out x);
result.Address |= (x & 0xC) >> 2;
result.Address |= (x & 0x3) << 18;
}
if (code.Length > 7)
{
SNESGameGenieTable.TryGetValue(code[7], out x);
result.Address |= (x & 0xC) << 14;
result.Address |= (x & 0x3) << 10;
}
return result;
}
public static bool IsValid(this IDecodeResult result, out DecodeResult valid)
{
valid = result as DecodeResult;
return(result is DecodeResult);
}
public static IDecodeResult Decode(string code)
{
if (code == null)
{
throw new ArgumentNullException(nameof(code));
}
if (code.Length != 6 && code.Length != 8)
{
return(new InvalidCheatCode("Game Genie codes need to be six or eight characters in length."));
}
var result = new DecodeResult {
Size = WatchSize.Byte
};
// char 3 bit 3 denotes the code length.
if (code.Length == 6)
{
// Char # | 1 | 2 | 3 | 4 | 5 | 6 |
// Bit # |3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|
// maps to|1|6|7|8|H|2|3|4|-|I|J|K|L|A|B|C|D|M|N|O|5|E|F|G|
result.Value = 0;
result.Address = 0x8000;
GameGenieTable.TryGetValue(code[0], out var x);
result.Value |= x & 0x07;
result.Value |= (x & 0x08) << 4;
GameGenieTable.TryGetValue(code[1], out x);
result.Value |= (x & 0x07) << 4;
result.Address |= (x & 0x08) << 4;
GameGenieTable.TryGetValue(code[2], out x);
result.Address |= (x & 0x07) << 4;
GameGenieTable.TryGetValue(code[3], out x);
result.Address |= (x & 0x07) << 12;
result.Address |= x & 0x08;
GameGenieTable.TryGetValue(code[4], out x);
result.Address |= x & 0x07;
result.Address |= (x & 0x08) << 8;
GameGenieTable.TryGetValue(code[5], out x);
result.Address |= (x & 0x07) << 8;
result.Value |= x & 0x08;
}
else
{
// Char # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
// Bit # |3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|
// maps to|1|6|7|8|H|2|3|4|-|I|J|K|L|A|B|C|D|M|N|O|%|E|F|G|!|^|&|*|5|@|#|$|
result.Value = 0;
result.Address = 0x8000;
result.Compare = 0;
GameGenieTable.TryGetValue(code[0], out var x);
result.Value |= x & 0x07;
result.Value |= (x & 0x08) << 4;
GameGenieTable.TryGetValue(code[1], out x);
result.Value |= (x & 0x07) << 4;
result.Address |= (x & 0x08) << 4;
GameGenieTable.TryGetValue(code[2], out x);
result.Address |= (x & 0x07) << 4;
GameGenieTable.TryGetValue(code[3], out x);
result.Address |= (x & 0x07) << 12;
result.Address |= x & 0x08;
GameGenieTable.TryGetValue(code[4], out x);
result.Address |= x & 0x07;
result.Address |= (x & 0x08) << 8;
GameGenieTable.TryGetValue(code[5], out x);
result.Address |= (x & 0x07) << 8;
result.Compare |= x & 0x08;
GameGenieTable.TryGetValue(code[6], out x);
result.Compare |= x & 0x07;
result.Compare |= (x & 0x08) << 4;
GameGenieTable.TryGetValue(code[7], out x);
result.Compare |= (x & 0x07) << 4;
result.Value |= x & 0x08;
}
return(result);
}
public static IDecodeResult Decode(string _code)
{
if (_code == null)
{
throw new ArgumentNullException(nameof(_code));
}
if (_code.LastIndexOf("-") != 7 || _code.IndexOf("-") != 3)
{
return(new InvalidCheatCode("All Master System Game Genie Codes need to have a dash after the third character and seventh character."));
}
// No cypher on value
// Char # | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
// Bit # |3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|3|2|1|0|
// maps to| Value |A|B|C|D|E|F|G|H|I|J|K|L|XOR 0xF|a|b|c|c|NotUsed|e|f|g|h|
// proper | Value |XOR 0xF|A|B|C|D|E|F|G|H|I|J|K|L|g|h|a|b|Nothing|c|d|e|f|
var result = new DecodeResult {
Size = WatchSize.Byte
};
int x;
// Getting Value
if (_code.Length > 0)
{
_gbGgGameGenieTable.TryGetValue(_code[0], out x);
result.Value = x << 4;
}
if (_code.Length > 1)
{
_gbGgGameGenieTable.TryGetValue(_code[1], out x);
result.Value |= x;
}
// Address
if (_code.Length > 2)
{
_gbGgGameGenieTable.TryGetValue(_code[2], out x);
result.Value = x << 8;
}
else
{
result.Value = -1;
}
if (_code.Length > 3)
{
_gbGgGameGenieTable.TryGetValue(_code[3], out x);
result.Address |= x << 4;
}
if (_code.Length > 4)
{
_gbGgGameGenieTable.TryGetValue(_code[4], out x);
result.Address |= x;
}
if (_code.Length > 5)
{
_gbGgGameGenieTable.TryGetValue(_code[5], out x);
result.Address |= (x ^ 0xF) << 12;
}
// compare need to be full
if (_code.Length > 8)
{
_gbGgGameGenieTable.TryGetValue(_code[6], out x);
var comp = x << 2;
// 8th character ignored
_gbGgGameGenieTable.TryGetValue(_code[8], out x);
comp |= (x & 0xC) >> 2;
comp |= (x & 0x3) << 6;
result.Compare = comp ^ 0xBA;
}
return(result);
}
