GameShark - move snes game genie decoding logic to its own class
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adelikat
parent
6ea0b711cf
commit
206ca8bf3e
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@ -0,0 +1,108 @@
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using System.Collections.Generic;
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namespace BizHawk.Client.Common.cheats
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{
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public class SnesGameGenieDecoder
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{
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private readonly string _code;
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// including transposition
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// Code: D F 4 7 0 9 1 5 6 B C 8 A 2 3 E
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// Hex: 0 1 2 3 4 5 6 7 8 9 A B C D E F
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// This only applies to the SNES
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private readonly Dictionary<char, int> _snesGameGenieTable = new Dictionary<char, int>
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{
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['D'] = 0, // 0000
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['F'] = 1, // 0001
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['4'] = 2, // 0010
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['7'] = 3, // 0011
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['0'] = 4, // 0100
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['9'] = 5, // 0101
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['1'] = 6, // 0110
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['5'] = 7, // 0111
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['6'] = 8, // 1000
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['B'] = 9, // 1001
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['C'] = 10, // 1010
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['8'] = 11, // 1011
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['A'] = 12, // 1100
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['2'] = 13, // 1101
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['3'] = 14, // 1110
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['E'] = 15 // 1111
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};
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public SnesGameGenieDecoder(string code)
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{
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_code = code?.Replace("-", "") ?? "";
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Decode();
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}
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public int Address { get; private set; }
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public int Value { get; private set; }
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public void Decode()
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{
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// Code: D F 4 7 0 9 1 5 6 B C 8 A 2 3 E
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// Hex: 0 1 2 3 4 5 6 7 8 9 A B C D E F
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// XXYY-YYYY, where XX is the value, and YY-YYYY is the address.
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// Char # | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
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// 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|
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// 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|
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// 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|
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int x;
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// Getting Value
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if (_code.Length > 0)
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{
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_snesGameGenieTable.TryGetValue(_code[0], out x);
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Value = x << 4;
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}
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if (_code.Length > 1)
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{
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_snesGameGenieTable.TryGetValue(_code[1], out x);
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Value |= x;
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}
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// Address
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if (_code.Length > 2)
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{
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_snesGameGenieTable.TryGetValue(_code[2], out x);
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Address = x << 12;
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}
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if (_code.Length > 3)
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{
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_snesGameGenieTable.TryGetValue(_code[3], out x);
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Address |= x << 4;
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}
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if (_code.Length > 4)
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{
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_snesGameGenieTable.TryGetValue(_code[4], out x);
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Address |= (x & 0xC) << 6;
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Address |= (x & 0x3) << 22;
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}
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if (_code.Length > 5)
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{
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_snesGameGenieTable.TryGetValue(_code[5], out x);
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Address |= (x & 0xC) << 18;
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Address |= (x & 0x3) << 2;
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}
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if (_code.Length > 6)
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{
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_snesGameGenieTable.TryGetValue(_code[6], out x);
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Address |= (x & 0xC) >> 2;
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Address |= (x & 0x3) << 18;
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}
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if (_code.Length > 7)
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{
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_snesGameGenieTable.TryGetValue(_code[7], out x);
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Address |= (x & 0xC) << 14;
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Address |= (x & 0x3) << 10;
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}
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}
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}
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}
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@ -1,5 +1,4 @@
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Windows.Forms;
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using BizHawk.Emulation.Common;
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@ -21,34 +20,6 @@ namespace BizHawk.Client.EmuHawk
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[Tool(true, new[] { "GB", "GBA", "GEN", "N64", "NES", "PSX", "SAT", "SMS", "SNES" }, new[] { "Snes9x" })]
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public partial class GameShark : Form, IToolForm, IToolFormAutoConfig
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{
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#region Game Genie Dictionary
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// including transposition
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// Code: D F 4 7 0 9 1 5 6 B C 8 A 2 3 E
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// Hex: 0 1 2 3 4 5 6 7 8 9 A B C D E F
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// This only applies to the SNES
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private readonly Dictionary<char, int> _snesGameGenieTable = new Dictionary<char, int>
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{
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['D'] = 0, // 0000
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['F'] = 1, // 0001
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['4'] = 2, // 0010
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['7'] = 3, // 0011
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['0'] = 4, // 0100
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['9'] = 5, // 0101
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['1'] = 6, // 0110
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['5'] = 7, // 0111
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['6'] = 8, // 1000
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['B'] = 9, // 1001
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['C'] = 10, // 1010
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['8'] = 11, // 1011
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['A'] = 12, // 1100
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['2'] = 13, // 1101
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['3'] = 14, // 1110
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['E'] = 15 // 1111
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};
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#endregion
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[RequiredService]
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// ReSharper disable once UnusedAutoPropertyAccessor.Local
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private IMemoryDomains MemoryDomains { get; set; }
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@ -2693,91 +2664,14 @@ namespace BizHawk.Client.EmuHawk
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}
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}
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private void SnesGGDecode(string code, ref int val, ref int add)
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{
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// Code: D F 4 7 0 9 1 5 6 B C 8 A 2 3 E
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// Hex: 0 1 2 3 4 5 6 7 8 9 A B C D E F
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// XXYY-YYYY, where XX is the value, and YY-YYYY is the address.
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// Char # | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
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// 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|
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// 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|
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// 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|
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int x;
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// Getting Value
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if (code.Length > 0)
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{
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_snesGameGenieTable.TryGetValue(code[0], out x);
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val = x << 4;
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}
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if (code.Length > 1)
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{
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_snesGameGenieTable.TryGetValue(code[1], out x);
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val |= x;
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}
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// Address
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if (code.Length > 2)
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{
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_snesGameGenieTable.TryGetValue(code[2], out x);
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add = x << 12;
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}
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if (code.Length > 3)
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{
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_snesGameGenieTable.TryGetValue(code[3], out x);
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add |= x << 4;
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}
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if (code.Length > 4)
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{
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_snesGameGenieTable.TryGetValue(code[4], out x);
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add |= (x & 0xC) << 6;
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add |= (x & 0x3) << 22;
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}
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if (code.Length > 5)
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{
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_snesGameGenieTable.TryGetValue(code[5], out x);
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add |= (x & 0xC) << 18;
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add |= (x & 0x3) << 2;
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}
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if (code.Length > 6)
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{
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_snesGameGenieTable.TryGetValue(code[6], out x);
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add |= (x & 0xC) >> 2;
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add |= (x & 0x3) << 18;
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}
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if (code.Length > 7)
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{
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_snesGameGenieTable.TryGetValue(code[7], out x);
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add |= (x & 0xC) << 14;
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add |= (x & 0x3) << 10;
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}
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}
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private void Snes()
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{
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bool gameGenie = false;
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if (_singleCheat.Contains("-") && _singleCheat.Length == 9)
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{
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int val = 0, add = 0;
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// We have to remove the - since it will cause issues later on.
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var input = _singleCheat.Replace("-", "");
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SnesGGDecode(input, ref val, ref add);
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_ramAddress = $"{add:X6}";
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_ramValue = $"{val:X2}";
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// We trim the first value here to make it work.
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_ramAddress = _ramAddress.Remove(0, 1);
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// Note, it's not actually a byte, but a Word. However, we are using this to keep from repeating code.
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_byteSize = 8;
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gameGenie = true;
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MessageBox.Show("Game genie codes are not currently supported for SNES", "SNES Game Genie not supported", MessageBoxButtons.OK, MessageBoxIcon.Error);
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////var decoder = new SnesGameGenieDecoder(_singleCheat);
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////var watch = Watch.GenerateWatch(MemoryDomains["CARTROM"], decoder.Address, WatchSize.Byte, Common.DisplayType.Hex, false, txtDescription.Text);
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////Global.CheatList.Add(new Cheat(watch, decoder.Value));
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}
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// This ONLY applies to Action Replay.
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@ -2817,18 +2711,8 @@ namespace BizHawk.Client.EmuHawk
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}
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else if (_byteSize == 8)
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{
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// Is this correct?
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if (gameGenie)
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{
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MessageBox.Show("Game genie codes are not currently supported for SNES", "SNES Game Genie not supported", MessageBoxButtons.OK, MessageBoxIcon.Error);
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////var watch = Watch.GenerateWatch(MemoryDomains["CARTROM"], long.Parse(RAMAddress, NumberStyles.HexNumber), WatchSize.Byte, Common.DisplayType.Hex, false, txtDescription.Text);
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////Global.CheatList.Add(new Cheat(watch, int.Parse(RAMValue, NumberStyles.HexNumber)));
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}
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else
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{
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var watch = Watch.GenerateWatch(MemoryDomains["System Bus"], long.Parse(_ramAddress, NumberStyles.HexNumber), WatchSize.Byte, Common.DisplayType.Hex, false, txtDescription.Text);
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Global.CheatList.Add(new Cheat(watch, int.Parse(_ramValue, NumberStyles.HexNumber)));
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}
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var watch = Watch.GenerateWatch(MemoryDomains["System Bus"], long.Parse(_ramAddress, NumberStyles.HexNumber), WatchSize.Byte, Common.DisplayType.Hex, false, txtDescription.Text);
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Global.CheatList.Add(new Cheat(watch, int.Parse(_ramValue, NumberStyles.HexNumber)));
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}
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}
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catch (Exception ex)
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