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ZealOS/docs/Demo/RandDemo.CC.html
TomAwezome 1b75d91002 Fix Mount AHCI Port selection. 
Add arg to SATARep to specify drive types to show.
Add checks in AHCIPortInit to verify port signatures, add helper method to get signatures from port.
2021-08-02 16:40:05 -04:00

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<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF1>U0</span><span class=cF0> RandPts()
<a name="l2"></a>{
<a name="l3"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l4"></a> </span><span class=cF1>F64</span><span class=cF0> t0 = </span><span class=cF5>tS</span><span class=cF0>;
<a name="l5"></a>
<a name="l6"></a> </span><span class=cF1>do</span><span class=cF0>
<a name="l7"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l8"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; </span><span class=cFE>1024</span><span class=cF0>; i++)
<a name="l9"></a> {
<a name="l10"></a> </span><span class=cFB>gr</span><span class=cF0>.dc-&gt;color = </span><span class=cF5>RandU16</span><span class=cF0> &amp; </span><span class=cFE>15</span><span class=cF0>;
<a name="l11"></a> </span><span class=cF5>GrPlot</span><span class=cF0>(</span><span class=cFB>gr</span><span class=cF0>.dc, </span><span class=cF5>RandU32</span><span class=cF0> % </span><span class=cF3>GR_WIDTH</span><span class=cF0>, </span><span class=cF5>RandU32</span><span class=cF0> % </span><span class=cF3>GR_HEIGHT</span><span class=cF0>);
<a name="l12"></a> }
<a name="l13"></a> </span><span class=cF5>Yield</span><span class=cF0>;
<a name="l14"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l15"></a> </span><span class=cF1>while</span><span class=cF0> (</span><span class=cF5>tS</span><span class=cF0> - t0 &lt; </span><span class=cFE>1</span><span class=cF0>);
<a name="l16"></a>
<a name="l17"></a> </span><span class=cF5>DCFill</span><span class=cF0>;
<a name="l18"></a>}
<a name="l19"></a>
<a name="l20"></a></span><span class=cF1>U0</span><span class=cF0> RandDemo()
<a name="l21"></a>{
<a name="l22"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l23"></a>
<a name="l24"></a> </span><span class=cF6>&quot;Seed(0) will do timer XORed random numbers. &quot;</span><span class=cF0>
<a name="l25"></a> </span><span class=cF6>&quot;A task starts with </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KTask.CC.html#l259"><span class=cF4>Seed(0)</span></a><span class=cF6> by default.\n&quot;</span><span class=cF0>;
<a name="l26"></a> </span><span class=cF5>PressAKey</span><span class=cF0>;
<a name="l27"></a> </span><span class=cF5>Seed</span><span class=cF0>;
<a name="l28"></a> RandPts;
<a name="l29"></a> </span><span class=cF5>DCFill</span><span class=cF0>;
<a name="l30"></a>
<a name="l31"></a> </span><span class=cF6>&quot;\nSeed(num) will do deterministic, non-timer random numbers starting at &quot;</span><span class=cF0>
<a name="l32"></a> </span><span class=cF6>&quot;a specific seed. You can run a specific video game over and over &quot;</span><span class=cF0>
<a name="l33"></a> </span><span class=cF6>&quot;by typing Seed(num) at the cmd line before the game.\n&quot;</span><span class=cF0>;
<a name="l34"></a> </span><span class=cF5>PressAKey</span><span class=cF0>;
<a name="l35"></a> </span><span class=cF5>Seed</span><span class=cF0>(</span><span class=cFE>1</span><span class=cF0>);
<a name="l36"></a> RandPts;
<a name="l37"></a> </span><span class=cF5>DCFill</span><span class=cF0>;
<a name="l38"></a>
<a name="l39"></a> </span><span class=cF6>&quot;\n\n\nWatch when we specify specific seeds:&quot;</span><span class=cF0>;
<a name="l40"></a>
<a name="l41"></a> </span><span class=cF6>&quot;\n\nSeed(1);\n&quot;</span><span class=cF0>;
<a name="l42"></a> </span><span class=cF5>Seed</span><span class=cF0>(</span><span class=cFE>1</span><span class=cF0>);
<a name="l43"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; </span><span class=cFE>5</span><span class=cF0>; i++)
<a name="l44"></a> </span><span class=cF6>&quot;%d: %d\n&quot;</span><span class=cF0>, i, </span><span class=cF5>RandI16</span><span class=cF0>;
<a name="l45"></a>
<a name="l46"></a> </span><span class=cF6>&quot;\nSeed(2); Different, right?\n&quot;</span><span class=cF0>;
<a name="l47"></a> </span><span class=cF5>Seed</span><span class=cF0>(</span><span class=cFE>2</span><span class=cF0>);
<a name="l48"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; </span><span class=cFE>5</span><span class=cF0>; i++)
<a name="l49"></a> </span><span class=cF6>&quot;%d: %d\n&quot;</span><span class=cF0>, i, </span><span class=cF5>RandI16</span><span class=cF0>;
<a name="l50"></a>
<a name="l51"></a> </span><span class=cF6>&quot;\nSeed(1); Repeats earlier values.\n&quot;</span><span class=cF0>;
<a name="l52"></a> </span><span class=cF5>Seed</span><span class=cF0>(</span><span class=cFE>1</span><span class=cF0>);
<a name="l53"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; </span><span class=cFE>5</span><span class=cF0>; i++)
<a name="l54"></a> </span><span class=cF6>&quot;%d: %d\n&quot;</span><span class=cF0>, i, </span><span class=cF5>RandI16</span><span class=cF0>;
<a name="l55"></a>
<a name="l56"></a> </span><span class=cF6>&quot;\nSeed(0); Zero is special.\n&quot;</span><span class=cF0>;
<a name="l57"></a> </span><span class=cF5>Seed</span><span class=cF0>(</span><span class=cFE>0</span><span class=cF0>);
<a name="l58"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; </span><span class=cFE>5</span><span class=cF0>; i++)
<a name="l59"></a> </span><span class=cF6>&quot;%d: %d\n&quot;</span><span class=cF0>, i, </span><span class=cF5>RandI16</span><span class=cF0>;
<a name="l60"></a>
<a name="l61"></a> </span><span class=cF6>&quot;\nSeed(0); Non-repeating.\n&quot;</span><span class=cF0>;
<a name="l62"></a> </span><span class=cF5>Seed</span><span class=cF0>(</span><span class=cFE>0</span><span class=cF0>);
<a name="l63"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; </span><span class=cFE>5</span><span class=cF0>; i++)
<a name="l64"></a> </span><span class=cF6>&quot;%d: %d\n&quot;</span><span class=cF0>, i, </span><span class=cF5>RandI16</span><span class=cF0>;
<a name="l65"></a>
<a name="l66"></a> </span><span class=cF5>Seed</span><span class=cF0>; </span><span class=cF2>//Default should be kept to zero.</span><span class=cF0>
<a name="l67"></a>}
<a name="l68"></a>
<a name="l69"></a>RandDemo;
</span></pre></body>
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