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<ol class="chapter"><li><a href="../00-introduction/00-index.html"><strong aria-hidden="true">1.</strong> Introduction</a></li><li><ol class="section"><li><a href="../00-introduction/01-requirements.html"><strong aria-hidden="true">1.1.</strong> Reader Requirements</a></li><li><a href="../00-introduction/02-goals_and_style.html"><strong aria-hidden="true">1.2.</strong> Book Goals and Style</a></li><li><a href="../00-introduction/03-development-setup.html"><strong aria-hidden="true">1.3.</strong> Development Setup</a></li><li><a href="../00-introduction/04-hello-magic.html"><strong aria-hidden="true">1.4.</strong> Hello, Magic</a></li><li><a href="../00-introduction/05-help_and_resources.html" class="active"><strong aria-hidden="true">1.5.</strong> Help and Resources</a></li></ol></li><li><a href="../01-quirks/00-index.html"><strong aria-hidden="true">2.</strong> Quirks</a></li><li><ol class="section"><li><a href="../01-quirks/01-no_std.html"><strong aria-hidden="true">2.1.</strong> No Std</a></li><li><a href="../01-quirks/02-fixed_only.html"><strong aria-hidden="true">2.2.</strong> Fixed Only</a></li><li><a href="../01-quirks/03-volatile_destination.html"><strong aria-hidden="true">2.3.</strong> Volatile Destination</a></li><li><a href="../01-quirks/04-newtype.html"><strong aria-hidden="true">2.4.</strong> Newtype</a></li></ol></li><li><a href="../02-concepts/00-index.html"><strong aria-hidden="true">3.</strong> Concepts</a></li><li><ol class="section"><li><a href="../02-concepts/01-cpu.html"><strong aria-hidden="true">3.1.</strong> CPU</a></li><li><a href="../02-concepts/02-bios.html"><strong aria-hidden="true">3.2.</strong> BIOS</a></li><li><a href="../02-concepts/03-wram.html"><strong aria-hidden="true">3.3.</strong> Work RAM</a></li><li><a href="../02-concepts/04-io-registers.html"><strong aria-hidden="true">3.4.</strong> IO Registers</a></li><li><a href="../02-concepts/05-palram.html"><strong aria-hidden="true">3.5.</strong> Palette RAM</a></li><li><a href="../02-concepts/06-vram.html"><strong aria-hidden="true">3.6.</strong> Video RAM</a></li><li><a href="../02-concepts/07-oam.html"><strong aria-hidden="true">3.7.</strong> Object Attribute Memory</a></li><li><a href="../02-concepts/08-rom.html"><strong aria-hidden="true">3.8.</strong> Game Pak ROM / Flash ROM</a></li><li><a href="../02-concepts/09-sram.html"><strong aria-hidden="true">3.9.</strong> Save RAM</a></li></ol></li><li><a href="../03-video/00-index.html"><strong aria-hidden="true">4.</strong> Video</a></li><li><ol class="section"><li><a href="../03-video/01-rgb15.html"><strong aria-hidden="true">4.1.</strong> RBG15 Color</a></li><li><a href="../03-video/TODO.html"><strong aria-hidden="true">4.2.</strong> TODO</a></li></ol></li><li><a href="../04-non-video/00-index.html"><strong aria-hidden="true">5.</strong> Non-Video</a></li><li><ol class="section"><li><a href="../04-non-video/01-buttons.html"><strong aria-hidden="true">5.1.</strong> Buttons</a></li><li><a href="../04-non-video/02-timers.html"><strong aria-hidden="true">5.2.</strong> Timers</a></li><li><a href="../04-non-video/03-dma.html"><strong aria-hidden="true">5.3.</strong> Direct Memory Access</a></li><li><a href="../04-non-video/04-sound.html"><strong aria-hidden="true">5.4.</strong> Sound</a></li><li><a href="../04-non-video/05-interrupts.html"><strong aria-hidden="true">5.5.</strong> Interrupts</a></li><li><a href="../04-non-video/06-network.html"><strong aria-hidden="true">5.6.</strong> Network</a></li><li><a href="../04-non-video/07-game_pak.html"><strong aria-hidden="true">5.7.</strong> Game Pak</a></li></ol></li><li><a href="../05-examples/00-index.html"><strong aria-hidden="true">6.</strong> Examples</a></li><li><ol class="section"><li><a href="../05-examples/01-hello_magic.html"><strong aria-hidden="true">6.1.</strong> hello_magic</a></li><li><a href="../05-examples/02-hello_world.html"><strong aria-hidden="true">6.2.</strong> hello_world</a></li><li><a href="../05-examples/03-light_cycle.html"><strong aria-hidden="true">6.3.</strong> light_cycle</a></li><li><a href="../05-examples/04-bg_demo.html"><strong aria-hidden="true">6.4.</strong> bg_demo</a></li></ol></li></ol>
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<main>
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<a class="header" href="#help-and-resources" id="help-and-resources"><h1>Help and Resources</h1></a>
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<a class="header" href="#help" id="help"><h2>Help</h2></a>
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<p>So you're stuck on a problem and the book doesn't say what to do. Where can you
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find out more?</p>
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<p>The first place I would suggest is the <a href="https://discordapp.com/invite/aVESxV8">Rust Community
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Discord</a>. If it's a general Rust question
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then you can ask anyone in any channel you feel is appropriate. If it's GBA
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specific then you can try asking me (<code>Lokathor</code>) or <code>Ketsuban</code> in the <code>#gamedev</code>
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channel.</p>
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<a class="header" href="#emulators" id="emulators"><h2>Emulators</h2></a>
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<p>You certainly might want to eventually write a game that you can put on a flash
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cart and play on real hardware, but for most of your development you'll probably
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want to be using an emulator for testing, because you don't have to fiddle with
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cables and all that.</p>
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<p>In terms of emulators, you want to be using
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<a href="https://github.com/mgba-emu/mgba">mGBA</a>, and you want to be using the <a href="https://github.com/mgba-emu/mgba/releases/tag/0.7-b1">0.7 Beta
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1</a> or later. This update
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lets you run raw ELF files, which means that you can have full debug symbols
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available while you're debugging problems.</p>
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<a class="header" href="#information-resources" id="information-resources"><h2>Information Resources</h2></a>
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<p>Ketsuban and I didn't magically learn this all from nowhere, we read various
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technical manuals and guides ourselves and then distilled the knowledge (usually
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oriented towards C and C++) into this book for Rust.</p>
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<p>We have personally used some or all of the following:</p>
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<ul>
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<li><a href="http://problemkaputt.de/gbatek.htm">GBATEK</a>: This is <em>the</em> resource. It
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covers not only the GBA, but also the DS and DSi, and also a run down of ARM
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assembly (32-bit and 16-bit opcodes). The link there is to the 2.9b version on
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<code>problemkaputt.de</code> (the official home of the document), but if you just google
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for gbatek the top result is for the 2.5 version on <code>akkit.org</code>, so make sure
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you're looking at the newest version. Sometimes <code>problemkaputt.de</code> is a little
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sluggish so I've also <a href="https://lokathor.com/gbatek.html">mirrored</a> the 2.9b
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version on my own site as well. GBATEK is rather large, over 2mb of text, so
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if you're on a phone or similar you might want to save an offline copy to go
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easy on your data usage.</li>
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<li><a href="https://www.coranac.com/tonc/text/">TONC</a>: While GBATEK is basically just a
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huge tech specification, TONC is an actual <em>guide</em> on how to make sense of the
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GBA's abilities and organize it into a game. It's written for C of course, but
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as a Rust programmer you should always be practicing your ability to read C
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code anyway. It's the programming equivalent of learning Latin because all the
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old academic books are written in Latin.</li>
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<li><a href="https://www.cs.rit.edu/%7Etjh8300/CowBite/CowBiteSpec.htm">CowBite</a>: This is
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more like GBATEK, and it's less complete, but it mixes in a little more
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friendly explanation of things in between the hardware spec parts.</li>
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</ul>
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<p>And I haven't had time to look at it myself, <a href="http://belogic.com/gba/">The Audio
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Advance</a> seems to be very good. It explains in depth
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how you can get audio working on the GBA. Note that the table of contents for
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each page goes along the top instead of down the side.</p>
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<a class="header" href="#non-rust-gba-community" id="non-rust-gba-community"><h2>Non-Rust GBA Community</h2></a>
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<p>There's also the <a href="http://www.gbadev.org/">GBADev.org</a> site, which has a forum
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and everything. They're coding in C and C++, but you can probably overcome that
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difference with a little work on your part.</p>
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<p>I also found a place called
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<a href="https://gbatemp.net/categories/nintendo-gba-discussions.32/">GBATemp</a>, which
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seems to have a more active forum but less of a focus on actual coding.</p>
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