mandelbrot: streamline exposition

1 files changed, 104 insertions, 110 deletions

diff --git a/html/mandelbrot-fixed.mu.html b/html/mandelbrot-fixed.mu.html
index 6f87111e..3a09bf53 100644
--- a/html/mandelbrot-fixed.mu.html
+++ b/html/mandelbrot-fixed.mu.html
@@ -170,118 +170,112 @@ if ('onhashchange' in window) {
 <span id="L111" class="LineNr">111 </span>  width-f <span class="Special">&lt;-</span> shift-left <span class="Constant">0xb</span>/log2-font-width-and-fixed-precision  <span class="muComment"># 3 + 8 = 11</span>
 <span id="L112" class="LineNr">112 </span>  <span class="PreProc">var</span> height-f/<span class="Constant">edi</span>: int <span class="Special">&lt;-</span> copy b
 <span id="L113" class="LineNr">113 </span>  height-f <span class="Special">&lt;-</span> shift-left <span class="Constant">0xc</span>/log2-font-height-and-fixed-precision  <span class="muComment"># 4 + 8 = 12</span>
-<span id="L114" class="LineNr">114 </span>  <span class="muComment"># it might make sense to keep x and y as regular ints</span>
-<span id="L115" class="LineNr">115 </span>  <span class="muComment"># treating them as fixed-point for demonstration purposes</span>
-<span id="L116" class="LineNr">116 </span>  <span class="PreProc">var</span> y-f/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
-<span id="L117" class="LineNr">117 </span>  <span class="Delimiter">{</span>
-<span id="L118" class="LineNr">118 </span>    compare y-f, height-f
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-<span id="L120" class="LineNr">120 </span>    <span class="PreProc">var</span> imaginary-f/<span class="Constant">ebx</span>: int <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L217'>mandelbrot-min-y</a> y-f, width-f, height-f
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-<span id="L174" class="LineNr">174 </span>  <span class="muComment"># x*x + y*y &gt; 4</span>
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+<span id="L159" class="LineNr">159 </span>  <span class="Delimiter">}</span>
+<span id="L160" class="LineNr">160 </span>  <span class="PreProc">return</span> iterations
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+<span id="L164" class="LineNr">164 </span>  <span class="muComment"># x*x + y*y &gt; 4</span>
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+<span id="L170" class="LineNr">170 </span>  <span class="Delimiter">{</span>
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+<span id="L174" class="LineNr">174 </span>  <span class="PreProc">return</span> <span class="Constant">1</span>/true
+<span id="L175" class="LineNr">175 </span><span class="Delimiter">}</span>
+<span id="L176" class="LineNr">176 </span>
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-<span id="L196" class="LineNr">196 </span>
-<span id="L197" class="LineNr">197 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='mandelbrot-fixed.mu.html#L197'>mandelbrot-y</a></span> x-f: int, y-f: int, imaginary-f: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span>
-<span id="L198" class="LineNr">198 </span>  <span class="muComment"># 2*x*y + imaginary</span>
-<span id="L199" class="LineNr">199 </span>  <span class="PreProc">var</span> result-f/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy x-f
-<span id="L200" class="LineNr">200 </span>  result-f <span class="Special">&lt;-</span> shift-left <span class="Constant">1</span>/log2
-<span id="L201" class="LineNr">201 </span>  result-f <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L79'>multiply-fixed</a> result-f, y-f
-<span id="L202" class="LineNr">202 </span>  result-f <span class="Special">&lt;-</span> add imaginary-f
-<span id="L203" class="LineNr">203 </span>  <span class="PreProc">return</span> result-f
-<span id="L204" class="LineNr">204 </span><span class="Delimiter">}</span>
-<span id="L205" class="LineNr">205 </span>
-<span id="L206" class="LineNr">206 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='mandelbrot-fixed.mu.html#L206'>mandelbrot-min-x</a></span> x-f: int, width-f: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">edx</span>: int <span class="Delimiter">{</span>
-<span id="L207" class="LineNr">207 </span>  <span class="muComment"># (x - width/2)*4/width</span>
-<span id="L208" class="LineNr">208 </span>  <span class="PreProc">var</span> result-f/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy x-f
-<span id="L209" class="LineNr">209 </span>  <span class="PreProc">var</span> half-width-f/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy width-f
-<span id="L210" class="LineNr">210 </span>  half-width-f <span class="Special">&lt;-</span> shift-right-signed <span class="Constant">1</span>/log2
-<span id="L211" class="LineNr">211 </span>  result-f <span class="Special">&lt;-</span> subtract half-width-f
-<span id="L212" class="LineNr">212 </span>  result-f <span class="Special">&lt;-</span> shift-left <span class="Constant">2</span>/log4
-<span id="L213" class="LineNr">213 </span>  result-f <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L90'>divide-fixed</a> result-f, width-f
-<span id="L214" class="LineNr">214 </span>  <span class="PreProc">return</span> result-f
-<span id="L215" class="LineNr">215 </span><span class="Delimiter">}</span>
-<span id="L216" class="LineNr">216 </span>
-<span id="L217" class="LineNr">217 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='mandelbrot-fixed.mu.html#L217'>mandelbrot-min-y</a></span> y-f: int, width-f: int, height-f: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span>
-<span id="L218" class="LineNr">218 </span>  <span class="muComment"># (y - height/2)*4/width</span>
-<span id="L219" class="LineNr">219 </span>  <span class="PreProc">var</span> result-f/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy y-f
-<span id="L220" class="LineNr">220 </span>  shift-right-signed height-f, <span class="Constant">1</span>/log2
-<span id="L221" class="LineNr">221 </span>  result-f <span class="Special">&lt;-</span> subtract height-f
-<span id="L222" class="LineNr">222 </span>  result-f <span class="Special">&lt;-</span> shift-left <span class="Constant">2</span>/log4
-<span id="L223" class="LineNr">223 </span>  result-f <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L90'>divide-fixed</a> result-f, width-f
-<span id="L224" class="LineNr">224 </span>  <span class="PreProc">return</span> result-f
-<span id="L225" class="LineNr">225 </span><span class="Delimiter">}</span>
+<span id="L187" class="LineNr">187 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='mandelbrot-fixed.mu.html#L187'>mandelbrot-y</a></span> x-f: int, y-f: int, imaginary-f: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span>
+<span id="L188" class="LineNr">188 </span>  <span class="muComment"># 2*x*y + imaginary</span>
+<span id="L189" class="LineNr">189 </span>  <span class="PreProc">var</span> result-f/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy x-f
+<span id="L190" class="LineNr">190 </span>  result-f <span class="Special">&lt;-</span> shift-left <span class="Constant">1</span>/log2
+<span id="L191" class="LineNr">191 </span>  result-f <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L79'>multiply-fixed</a> result-f, y-f
+<span id="L192" class="LineNr">192 </span>  result-f <span class="Special">&lt;-</span> add imaginary-f
+<span id="L193" class="LineNr">193 </span>  <span class="PreProc">return</span> result-f
+<span id="L194" class="LineNr">194 </span><span class="Delimiter">}</span>
+<span id="L195" class="LineNr">195 </span>
+<span id="L196" class="LineNr">196 </span><span class="muComment"># Scale (x, y) pixel coordinates to a complex plane where the viewport width</span>
+<span id="L197" class="LineNr">197 </span><span class="muComment"># ranges from -2 to +2. Viewport height just follows the viewport's aspect</span>
+<span id="L198" class="LineNr">198 </span><span class="muComment"># ratio.</span>
+<span id="L199" class="LineNr">199 </span>
+<span id="L200" class="LineNr">200 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='mandelbrot-fixed.mu.html#L200'>viewport-to-real-f</a></span> x: int, width-f: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">edx</span>: int <span class="Delimiter">{</span>
+<span id="L201" class="LineNr">201 </span>  <span class="muComment"># (x - width/2)*4/width</span>
+<span id="L202" class="LineNr">202 </span>  <span class="PreProc">var</span> result-f/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L15'>int-to-fixed</a> x
+<span id="L203" class="LineNr">203 </span>  <span class="PreProc">var</span> half-width-f/<span class="Constant">ecx</span>: int <span class="Special">&lt;-</span> copy width-f
+<span id="L204" class="LineNr">204 </span>  half-width-f <span class="Special">&lt;-</span> shift-right-signed <span class="Constant">1</span>/log2
+<span id="L205" class="LineNr">205 </span>  result-f <span class="Special">&lt;-</span> subtract half-width-f
+<span id="L206" class="LineNr">206 </span>  result-f <span class="Special">&lt;-</span> shift-left <span class="Constant">2</span>/log4
+<span id="L207" class="LineNr">207 </span>  result-f <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L90'>divide-fixed</a> result-f, width-f
+<span id="L208" class="LineNr">208 </span>  <span class="PreProc">return</span> result-f
+<span id="L209" class="LineNr">209 </span><span class="Delimiter">}</span>
+<span id="L210" class="LineNr">210 </span>
+<span id="L211" class="LineNr">211 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='mandelbrot-fixed.mu.html#L211'>viewport-to-imaginary-f</a></span> y: int, width-f: int, height-f: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span>
+<span id="L212" class="LineNr">212 </span>  <span class="muComment"># (y - height/2)*4/width</span>
+<span id="L213" class="LineNr">213 </span>  <span class="PreProc">var</span> result-f/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L15'>int-to-fixed</a> y
+<span id="L214" class="LineNr">214 </span>  shift-right-signed height-f, <span class="Constant">1</span>/log2
+<span id="L215" class="LineNr">215 </span>  result-f <span class="Special">&lt;-</span> subtract height-f
+<span id="L216" class="LineNr">216 </span>  result-f <span class="Special">&lt;-</span> shift-left <span class="Constant">2</span>/log4
+<span id="L217" class="LineNr">217 </span>  result-f <span class="Special">&lt;-</span> <a href='mandelbrot-fixed.mu.html#L90'>divide-fixed</a> result-f, width-f
+<span id="L218" class="LineNr">218 </span>  <span class="PreProc">return</span> result-f
+<span id="L219" class="LineNr">219 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>