mirror of
https://github.com/fadden/6502bench.git
synced 2024-09-10 13:54:52 +00:00
Fairly straightfoward in Python. Also, fixed the sidenav references, which should be using the file in the sgtutorial subdirectory. Also, tweaked index.html a bit.
192 lines
7.5 KiB
HTML
192 lines
7.5 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="utf-8"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
|
|
|
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"
|
|
integrity="sha384-vtXRMe3mGCbOeY7l30aIg8H9p3GdeSe4IFlP6G8JMa7o7lXvnz3GFKzPxzJdPfGK" crossorigin="anonymous"></script>
|
|
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"/>
|
|
<link rel="stylesheet" href="/main.css"/>
|
|
|
|
<title>Extension Scripts - SourceGen Tutorial</title>
|
|
</head>
|
|
|
|
<body>
|
|
|
|
<div id="masthead">
|
|
<!-- START: /masthead-incl.html -->
|
|
<script>$("#masthead").load("/masthead-incl.html");</script>
|
|
<!-- END: /masthead-incl.html -->
|
|
</div>
|
|
|
|
<div id="topnav">
|
|
<!-- START: /topnav-incl.html active:#topnav-sgtutorial -->
|
|
<script>
|
|
// Load global topnav content, and mark current page active.
|
|
$("#topnav").load("/topnav-incl.html", function() {
|
|
$("#topnav-sgtutorial").addClass("active");
|
|
});
|
|
</script>
|
|
<!-- END: /topnav-incl.html -->
|
|
</div>
|
|
|
|
<div id="sidenav">
|
|
<!-- START: sidenav-incl.html active:#sidenav-extension-scripts -->
|
|
<script>
|
|
// Load local sidenav content, and mark current page active.
|
|
$("#sidenav").load("sidenav-incl.html", function() {
|
|
$("#sidenav-extension-scripts").addClass("active");
|
|
});
|
|
</script>
|
|
<!-- END: sidenav-incl.html -->
|
|
</div>
|
|
|
|
<div id="main">
|
|
|
|
<h2>Extension Scripts</h2>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-text">
|
|
<p>Some repetitive formatting tasks can be handled with automatic scripts.
|
|
This is especially useful for inline data, which can confuse the code
|
|
analyzer.</p>
|
|
<p>An earlier tutorial demonstrated how to manually mark bytes as
|
|
inline data. We're going to do it a faster way. For this tutorial,
|
|
start a new project with the <samp>Generic 6502</samp> profile, and
|
|
in the SourceGen Examples/Tutorial directory select "Tutorial4".</p>
|
|
<p>We'll need to load scripts from the project directory, so we have to
|
|
save the project. <samp>File > Save</samp>,
|
|
use the default name ("Tutorial4.dis65").</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-image">
|
|
<img src="images/t4-add-inlinel1.png" alt="t4-add-inlinel1"/>
|
|
</div>
|
|
<div class="grid-item-text">
|
|
<p>Take a look at the disassembly listing. The file starts with a
|
|
<code>JSR</code> followed by a string that begins with a small number.
|
|
This appears to be a string with a leading length byte. We want to load
|
|
a script that can handle that, so use
|
|
<samp>Edit > Project Properties</samp>, select the
|
|
<samp>Extension Scripts</samp> tab, and click
|
|
<samp>Add Scripts from Project</samp>. The file
|
|
browser opens in the project directory. Select the file
|
|
"InlineL1String.cs", click <samp>Open</samp>, then <samp>OK</samp>.</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-image">
|
|
<img src="images/t4-inlinel1-src.png" alt="t4-inlinel1-src"/>
|
|
</div>
|
|
<div class="grid-item-text">
|
|
<p>Nothing happened. If you look at the script with an editor (and you
|
|
know some C#), you'll see that it's looking for a <code>JSR</code> to a
|
|
function called <code>PrintInlineL1String</code>. So let's give it one.</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-text">
|
|
<p>Double-click the <code>JSR</code> opcode on line $1000
|
|
to jump to address $1026. The only thing there is an <code>RTS</code>.
|
|
It's supposed to be a routine that prints a string with a leading length
|
|
byte, but for the sake of keeping the example code short it's just a
|
|
place-holder. Use the curly toolbar arrow
|
|
(or <kbd class="key">Alt+LeftArrow</kbd>) to jump back to $1026.</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-image">
|
|
<img src="images/t4-inlinel1-edit.png" alt="t4-inlinel1-edit"/>
|
|
</div>
|
|
<div class="grid-item-text">
|
|
<p>This time, double-click the <code>JSR</code> <i>operand</i>
|
|
("<samp>L1026</samp>") to edit the operand.
|
|
Click <samp>Create Label</samp>, and enter <kbd>PrintInlineL1String</kbd>.
|
|
Remember that labels are case-sensitive;
|
|
you must enter it exactly as shown. Hit <samp>OK</samp> to accept the label,
|
|
and <samp>OK</samp> to close the operand editor.</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-image">
|
|
<img src="images/t4-inlinel1-done.png" alt="t4-inlinel1-done"/>
|
|
</div>
|
|
<div class="grid-item-text">
|
|
<p>If all went well, address $1003
|
|
should now be an L1 string "<code>How long?</code>", and address $100D
|
|
should be another <code>JSR</code>.</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-text">
|
|
<p>The next <code>JSR</code> appears to be followed by a null-terminated string, so
|
|
we'll need something that handles that.</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-image">
|
|
<img src="images/t4-inlinenull-src.png" alt="t4-inlinenull-src"/>
|
|
</div>
|
|
<div class="grid-item-text">
|
|
<p>Go back into Project Properties
|
|
and add the script called "InlineNullTermString.cs" from the project directory.
|
|
This script is slightly different, in that it handles any <code>JSR</code> to a label
|
|
that starts with <code>PrintInlineNullString</code>. So let's give it a couple of
|
|
those.</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-image">
|
|
<img src="images/t4-inlinenull-done.png" alt="t4-inlinenull-done"/>
|
|
</div>
|
|
<div class="grid-item-text">
|
|
<p>Double-click the operand on line $100D ("<code>L1027</code>"),
|
|
click <samp>Create Label</samp>,
|
|
and set the label to "<kbd>PrintInlineNullStringOne</kbd>".
|
|
Hit <samp>OK</samp> twice. That formatted the first one and got us
|
|
to the next <code>JSR</code>. Repeat the process on line $1019
|
|
("<code>L1028</code>"), setting the label to "<kbd>PrintInlineNullStringTwo</kbd>".</p>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="grid-container">
|
|
<div class="grid-item-text">
|
|
<p>The entire project is now nicely formatted. In a real project the
|
|
"Print Inline" locations would be actual print functions, not just <code>RTS</code>
|
|
instructions. There would likely be multiple <code>JSR</code>s to the print function,
|
|
so labeling a single function entry point could format dozens of inline
|
|
strings and clean up the disassembly automatically. The reason for
|
|
allowing wildcard names is that some functions may have multiple
|
|
entry points or chain through different locations.</p>
|
|
|
|
<p>Extension scripts can make your life much easier, but they do require
|
|
some programming experience. See the SourceGen manual for more details.</p>
|
|
</div>
|
|
</div>
|
|
|
|
</div> <!-- #main -->
|
|
|
|
<div id="prevnext">
|
|
<a href="#" class="btn-previous">« Previous</a>
|
|
<a href="#" class="btn-next">Next »</a>
|
|
</div>
|
|
|
|
<div id="footer">
|
|
<!-- START: /footer-incl.html -->
|
|
<script>$("#footer").load("/footer-incl.html");</script>
|
|
<!-- END: /footer-incl.html -->
|
|
</div>
|
|
|
|
</body>
|
|
</html>
|