http://wiki.mcselec.com/bavr/index.php?action=history&feed=atom&title=CmdScreenSaver 2026-06-10T01:57:18Z Revision history for this page on the wiki MediaWiki 1.18.6 http://wiki.mcselec.com/bavr/index.php?title=CmdScreenSaver&diff=4827&oldid=prev 2014-12-12T17:49:56Z

<p>Created page with &quot;= &lt;span class=&quot;f_Header&quot;&gt;Action&lt;/span&gt; = Start an animated screensaver. &lt;span style=&quot;font-family: Arial;&quot;&gt; &lt;/span&gt; &lt;span style=&quot;font-family: Arial;&quot;&gt; &lt;/span&gt; = &lt;...&quot;</p> <p><b>New page</b></p><div>= &lt;span class=&quot;f_Header&quot;&gt;Action&lt;/span&gt; =<br /> <br /> Start an animated screensaver.<br /> <br /> &lt;span style=&quot;font-family: Arial;&quot;&gt;&amp;nbsp;&lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-family: Arial;&quot;&gt;&amp;nbsp;&lt;/span&gt;<br /> <br /> = &lt;span class=&quot;f_Header&quot;&gt;Syntax&lt;/span&gt; =<br /> <br /> &lt;span style=&quot;font-weight: bold; color: rgb(0, 0, 128);&quot;&gt;CmdScreenSaver&lt;/span&gt;<br /> <br /> &amp;nbsp;<br /> <br /> &amp;nbsp;<br /> <br /> &amp;nbsp;<br /> <br /> = &lt;span class=&quot;f_Header&quot;&gt;Remarks&lt;/span&gt; =<br /> <br /> After the screensaver command, the co-processor engine continuously updates&amp;nbsp;&lt;span style=&quot;color: rgb(128, 0, 128);&quot;&gt;REG_MACRO_0&lt;/span&gt;&amp;nbsp;with&amp;nbsp;&lt;span style=&quot;color: rgb(128, 0, 128);&quot;&gt;VERTEX2F&lt;/span&gt;&amp;nbsp;with varying (x,y) coordinates. With an appropriate display list, this causes a bitmap to move around the screen without any MCU work.<br /> <br /> Command&amp;nbsp;&lt;span style=&quot;color: rgb(128, 0, 128);&quot;&gt;CMD_STOP&lt;/span&gt;&amp;nbsp;stops the update process.<br /> <br /> Note that only one of&amp;nbsp;[[CmdSketch]],&amp;nbsp;CmdScreenSaver&amp;nbsp;or&amp;nbsp;[[CmdSpinner]]&amp;nbsp;can be active at one time.<br /> <br /> &amp;nbsp;<br /> <br /> &lt;span style=&quot;color: rgb(128, 0, 128);&quot;&gt;REG_MACRO_0&lt;/span&gt;&amp;nbsp;is updated with respect to frequency of frames displayed (depending on the display registers configuration).<br /> <br /> Typically for 480x272 display the frame rate is around 60 frame per second.<br /> <br /> &lt;span style=&quot;color: rgb(128, 0, 128);&quot;&gt;&amp;nbsp;&lt;/span&gt;<br /> <br /> &lt;span style=&quot;color: rgb(128, 0, 128);&quot;&gt;&amp;nbsp;&lt;/span&gt;<br /> <br /> &lt;span style=&quot;color: rgb(128, 0, 128);&quot;&gt;&amp;nbsp;&lt;/span&gt;<br /> <br /> = &lt;span class=&quot;f_Header&quot;&gt;Example&lt;/span&gt; =<br /> <br /> &lt;source lang=&quot;bascomavr&quot;&gt;<br /> ' see it working in FT800 Demo4.bas (Sub Screensaver)<br /> &lt;/source&gt;<br /> <br /> {{Languages}}<br /> <br /> [[Category:FT800 Commands]]</div>

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