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148 lines
6.4 KiB
HTML
148 lines
6.4 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<!-- START: /incl-head.html -->
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<!-- common head elements -->
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<meta charset="utf-8"/>
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<meta name="viewport" content="width=device-width, initial-scale=1"/>
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"
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integrity="sha384-vtXRMe3mGCbOeY7l30aIg8H9p3GdeSe4IFlP6G8JMa7o7lXvnz3GFKzPxzJdPfGK" crossorigin="anonymous"></script>
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<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"/>
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<link rel="stylesheet" href="../main.css"/>
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<!-- END: /incl-head.html -->
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<title>Suggestions - SourceGen Tutorial</title>
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</head>
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<body>
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<!-- START: /incl-masthead.html -->
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<div id="masthead">
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<!--<div class="masthead-title" style="background-image: url('images/screenshot-mainwin.png');">-->
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<div class="masthead-title">
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6502bench
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</div>
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</div>
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<!-- END: /incl-masthead.html -->
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<!-- START: /incl-topnav.html active:#topnav-sgtutorial -->
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<div id="topnav">
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<!-- top navigation bar contents -->
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<nav>
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<a id="topnav-home" href=".././">HOME</a>
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<a id="topnav-sgtutorial" class="active" href="../sgtutorial">SourceGen Tutorial</a>
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<a id="topnav-menuicon" href="javascript:void(0);" class="icon" onclick="toggleSidenav()">
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<i class="fa fa-bars"></i>
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</a>
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</nav>
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<script>
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// Sidenav toggle function.
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//
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// Use a jQuery function to toggle the sidenav bar. The initial state
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// is undefined / inherited, so it will pop in and out as the screen
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// resizes around the "large" breakpoint.
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function toggleSidenav() {
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$("#sidenav").toggle("fast");
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}
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</script>
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</div>
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<!-- END: /incl-topnav.html -->
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<!-- START: incl-sidenav.html active:#sidenav-suggestions -->
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<div id="sidenav">
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<!-- side navigation bar contents -->
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<ul>
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<li id="sidenav-index"><a href="./">Introduction</a></li>
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<li id="sidenav-about-disasm"><a href="about-disasm.html">About Disassembly</a></li>
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<li id="sidenav-using-sourcegen"><a href="using-sourcegen.html">Using SourceGen</a>
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<ul>
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<li id="sidenav-moving-around"><a href="moving-around.html">Moving Around</a></li>
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<li id="sidenav-simple-edits"><a href="simple-edits.html">Simple Edits</a></li>
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<li id="sidenav-labels-symbols"><a href="labels-symbols.html">Labels & Symbols</a></li>
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<li id="sidenav-editing-data"><a href="editing-data.html">Editing Data Operands</a></li>
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<li id="sidenav-generating-code"><a href="generating-code.html">Generating Code</a></li>
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</ul></li>
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<li id="sidenav-digging-deeper"><a href="digging-deeper.html">Digging Deeper</a>
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<ul>
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<li id="sidenav-string-formatting"><a href="string-formatting.html">String Formatting</a></li>
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<li id="sidenav-local-variables"><a href="local-variables.html">Local Variables</a></li>
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<li id="sidenav-inline-data"><a href="inline-data.html">Inline Data</a></li>
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<li id="sidenav-odds-ends"><a href="odds-ends.html">Odds & Ends</a></li>
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</ul></li>
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<li id="sidenav-advanced-topics"><a href="advanced-topics.html">Advanced Topics</a>
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<ul>
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<li id="sidenav-address-tables"><a href="address-tables.html">Address Tables</a></li>
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<li id="sidenav-extension-scripts"><a href="extension-scripts.html">Extension Scripts</a></li>
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<li id="sidenav-visualizations"><a href="visualizations.html">Visualizations</a></li>
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</ul></li>
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<li id="sidenav-suggestions" class="active"><a href="suggestions.html">Suggestions</a></li>
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</ul>
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</div>
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<!-- END: incl-sidenav.html -->
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<div id="main">
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<h2>A Few Suggestions</h2>
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<p>The hardest step in a journey is often the first. Here are a few
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suggestions to help you on your way.</p>
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<ul>
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<li>Start with a small project (< 1KB). If you haven't
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disassembled code before, this is the time to play with different
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conventions, like whether to use MixedCase or underscore_separated
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or SCREAMING_CAPS for labels.</li>
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<li>Use the program thoroughly. Understand all of what it does.</li>
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<li>Begin each project by separating code from data. Identify external
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entry points, format tables of addresses, and find JSRs that are
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followed by inline data. Write an extension script to handle the
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inlines so you won't keep tripping over them. If parts of the program
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are relocated to a different address, set the appropriate address
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overrides. Progress will be easier once you get code, data, and junk
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identified and arranged in memory.
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<ul>
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<li>Code start tags are rarely needed, and code end tags are almost never
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needed. You shouldn't have to spend a lot of time manually tagging things.
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If a piece of code isn't being found, it's usually best to figure out why
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the code that calls it isn't being found, instead of trying to tag it and
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forge ahead. It might be dead code that's never called, or it might be
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called from a table that you can format to add code entry tags for
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multiple addresses with a single operation.</li>
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</ul></li>
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<li>Start with easily identifiable pieces. If a chunk of code is reading
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from the keyboard, you can make reasonable guesses about the purpose of
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the code that interacts with it.
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The start of the program is often the hardest place to begin, because it
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usually just initializes a bunch of stuff you haven't identified.</li>
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<li>Expect to figure out little pieces. Use what you learn from these
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to figure out other little pieces. It's a jigsaw puzzle, not a book.</li>
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<li>Don't get discouraged if there's a ton of code that you can't make
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sense of. It won't at first. Keep chipping away.</li>
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<li>Read <a href="https://6502disassembly.com/on-disassembly.html">On Disassembly</a>
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for additional thoughts.</li>
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</ul>
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</div> <!-- #main -->
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<div id="prevnext">
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<a href="visualizations.html" class="btn-previous">« Previous</a>
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</div>
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<div id="footer">
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<hr/>
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<p>Copyright 2021 faddenSoft</p>
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