294 lines
14 KiB
HTML
294 lines
14 KiB
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data-hnd-id="GameGenieEncoderDecoder"
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data-hnd-title="Game Genie Encoder/Decoder"
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<div class="btn-group btn-group" role="group"><a class="btn btn-default" href="Debug.html" title="Debug" role="button"><span class="glyphicon glyphicon-menu-up" aria-hidden="true"></span></a><a class="btn btn-default" href="CodeDataLogger.html" title="Code/Data Logger" role="button"><span class="glyphicon glyphicon-menu-left" aria-hidden="true"></span></a><a class="btn btn-default" href="InesHeaderEditor.html" title="iNES Header Editor" role="button"><span class="glyphicon glyphicon-menu-right" aria-hidden="true"></span></a></div>
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<h2>Game Genie Encoder/Decoder</h2>
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<div class="main-content">
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<p class="rvps2"><span class="rvts22">Game Genie Decoder/Encoder</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">This will take an NES address space PRG address ($8000-$FFFF), a comparison value (for 8-letter GG codes; refer to a Game Genie code FAQ for an explanation of what this does), and a Value that replaces the addressed byte.</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">Filling in the Address and Value fields will produce a 6-letter code; if you also fill out the Compare field, it will produce an 8-letter code. The code so produced will appear in the Game Genie Code box immediately; you can then click "Add to Cheat List" to activate it.</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">To decrypt a Game Genie code, enter it into the Game Genie Code box, and the Address and Value fields will be automatically filled in, as will the Compare field if it was an 8-letter code.</span></p>
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<p class="rvps2"><span class="rvts21"><br/></span></p>
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<p class="rvps2"><span class="rvts21">Adding Game Genie codes</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">In the Game Genie Code Decoder/Encoder window, type the code into the Game Genie Code box and click "Add to Cheat List", which will add it to the </span><a class="rvts93" href="CheatSearch.html">Cheat Search</a><span class="rvts6"> cheat list. You can then enable/disable them by double-clicking the code in the box (a * means the code is active).</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts21">Making Game Genie codes permanent</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">Using the Game Genie Code Decoder/Encoder, enter in your code in the "Game Genie Code" box, and under "Possible Affected ROM File Addresses", a list of possible matches (usually from 1 to 5) is displayed. Using the built-in Hex Editor, go to the first listed address in the ROM, and change its value to the value given in the "Value" box (of the GG code Decoder/Encoder window). If the desired effect isn't achieved, undo the change (Ctrl+Z) and try the next address. Repeat until the desired effect is achieved, and then save the ROM.</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts21">How do I make my own Game Genie codes?</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">First of all, you must:</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">* have a decent amount of ASM knowledge;</span></p>
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<p class="rvps2"><span class="rvts6">* know how to use the debugger;</span></p>
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<p class="rvps2"><span class="rvts6">* understand NES PRG-ROM bank switching.</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">Once you've found a part of PRG-ROM you want to change to create a code effect, snap the </span><a class="rvts93" href="Debugger.html">Debugger</a><span class="rvts6"> (if it's not so already) and find the code's location in the PRG-ROM's address space ($8000-$FFFF) (you'll want the debugger snapped so the game won't swap banks out from under you). Then, using the built-in </span><a class="rvts93" href="HexEditor.html">Hex Editor</a><span class="rvts6">, view the NES memory and go to the PRG-ROM address you wish to modify, then right-click the byte and choose "Create Game Genie Code at this Address". The Game Genie Code Decoder/Encoder will appear, with the Address and Compare boxes filled in (the Compare box represents the address's original value). Enter the new value into the "Value" box. </span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6">An alternative way to enter the code is to locate the desired address in the debugger, and then middle-click on it, which will summon the GG Code Decoder/Encoder. Then enter the code as described above.</span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6"><br/></span></p>
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<p class="rvps2"><span class="rvts6"></span><span class="rvts6"></span></p>
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<p class="rvps4" style="clear: both;"><span class="rvts18">Created with the Personal Edition of HelpNDoc: </span><a class="rvts19" href="https://www.helpndoc.com/feature-tour/create-ebooks-for-amazon-kindle">Full-featured Kindle eBooks generator</a></p>
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