88 lines
5.0 KiB
HTML
88 lines
5.0 KiB
HTML
<!DOCTYPE html>
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<title>Mu - apps/ex13.mu</title>
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<a href='https://github.com/akkartik/mu/blob/main/apps/ex13.mu'>https://github.com/akkartik/mu/blob/main/apps/ex13.mu</a>
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<pre id='vimCodeElement'>
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<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Load an image from disk and display it on screen.</span>
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<span id="L2" class="LineNr"> 2 </span><span class="muComment">#</span>
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<span id="L3" class="LineNr"> 3 </span><span class="muComment"># Build the code disk:</span>
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<span id="L4" class="LineNr"> 4 </span><span class="muComment"># $ ./translate apps/ex13.mu # generates code.img</span>
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<span id="L5" class="LineNr"> 5 </span><span class="muComment"># Load a pbm, pgm or ppm image (no more than 255 levels) in the data disk</span>
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<span id="L6" class="LineNr"> 6 </span><span class="muComment"># $ dd if=/dev/zero of=data.img count=20160</span>
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<span id="L7" class="LineNr"> 7 </span><span class="muComment"># $ dd if=___ of=data.img conv=notrunc</span>
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<span id="L8" class="LineNr"> 8 </span><span class="muComment"># Run:</span>
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<span id="L9" class="LineNr"> 9 </span><span class="muComment"># $ qemu-system-i386 -hda code.img -hdb data.img</span>
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<span id="L10" class="LineNr">10 </span>
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<span id="L11" class="LineNr">11 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex13.mu.html#L11'>main</a></span> <a href='../500fake-screen.mu.html#L16'>screen</a>: (addr <a href='../500fake-screen.mu.html#L16'>screen</a>), keyboard: (addr keyboard), data-disk: (addr disk) <span class="Delimiter">{</span>
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<span id="L12" class="LineNr">12 </span> <span class="PreProc">var</span> img-storage: <a href='../511image.mu.html#L6'>image</a>
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<span id="L13" class="LineNr">13 </span> <span class="PreProc">var</span> img/<span class="muRegEsi">esi</span>: (addr <a href='../511image.mu.html#L6'>image</a>) <span class="Special"><-</span> address img-storage
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<span id="L14" class="LineNr">14 </span> <a href='ex13.mu.html#L18'>load-image</a> img, data-disk
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<span id="L15" class="LineNr">15 </span> <a href='../511image.mu.html#L55'>render-image</a> <a href='../500fake-screen.mu.html#L16'>screen</a>, img, <span class="Constant">0</span>/x, <span class="Constant">0</span>/y, <span class="Constant">0x300</span>/width, <span class="Constant">0x300</span>/height
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<span id="L16" class="LineNr">16 </span><span class="Delimiter">}</span>
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<span id="L17" class="LineNr">17 </span>
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<span id="L18" class="LineNr">18 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex13.mu.html#L18'>load-image</a></span> self: (addr <a href='../511image.mu.html#L6'>image</a>), data-disk: (addr disk) <span class="Delimiter">{</span>
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<span id="L19" class="LineNr">19 </span> <span class="PreProc">var</span> s-storage: (stream byte <span class="Constant">0x200000</span>) <span class="muComment"># 512 * 0x1000 sectors</span>
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<span id="L20" class="LineNr">20 </span> <span class="PreProc">var</span> s/<span class="muRegEbx">ebx</span>: (addr stream byte) <span class="Special"><-</span> address s-storage
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<span id="L21" class="LineNr">21 </span> <a href='../510disk.mu.html#L1'>load-sectors</a> data-disk, <span class="Constant">0</span>/lba, <span class="Constant">0x1000</span>/sectors, s
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<span id="L22" class="LineNr">22 </span> <a href='../511image.mu.html#L17'>initialize-image</a> self, s
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<span id="L23" class="LineNr">23 </span><span class="Delimiter">}</span>
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</pre>
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</body>
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</html>
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