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https://github.com/Zeal-Operating-System/ZealOS.git
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1b75d91002
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.
65 lines
4.6 KiB
HTML
Executable file
65 lines
4.6 KiB
HTML
Executable file
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<pre style="font-family:monospace;font-size:12pt">
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<a name="l1"></a><span class=cF2>/*Allows you to time insts.</span><span class=cF0>
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<a name="l2"></a></span><span class=cF2>Results vary because the CPU does</span><span class=cF0>
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<a name="l3"></a></span><span class=cF2>parallel and out-of-order execution.</span><span class=cF0>
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<a name="l4"></a></span><span class=cF2>*/</span><span class=cF0>
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<a name="l5"></a>
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<a name="l6"></a>#</span><span class=cF1>define</span><span class=cF0> SAMPLE_SIZE </span><span class=cFE>10000000</span><span class=cF0>
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<a name="l7"></a>
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<a name="l8"></a></span><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>TimeIns</span><span class=cF0>()
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<a name="l9"></a>{
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<a name="l10"></a> </span><span class=cF9>I64</span><span class=cF0> i, </span><span class=cF1>start</span><span class=cF0>, </span><span class=cF1>end</span><span class=cF0>, overhead_time, test_time;
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<a name="l11"></a> </span><span class=cF1>F64</span><span class=cF0> d = </span><span class=cFE>5</span><span class=cF0>.</span><span class=cFE>0</span><span class=cF0>;
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<a name="l12"></a>
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<a name="l13"></a> </span><span class=cF2>//Measure Loop Overhead</span><span class=cF0>
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<a name="l14"></a> </span><span class=cF1>start</span><span class=cF0> = </span><span class=cF5>TSCGet</span><span class=cF0>;
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<a name="l15"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i < SAMPLE_SIZE; i++);
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<a name="l16"></a> </span><span class=cF1>end</span><span class=cF0> = </span><span class=cF5>TSCGet</span><span class=cF0>;
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<a name="l17"></a> overhead_time = </span><span class=cF1>end</span><span class=cF0> - </span><span class=cF1>start</span><span class=cF0>;
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<a name="l18"></a> </span><span class=cF6>"\nOverhead Cycles:%12.6f\n"</span><span class=cF0>, </span><span class=cF5>ToF64</span><span class=cF0>(overhead_time) / SAMPLE_SIZE;
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<a name="l19"></a>
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<a name="l20"></a> </span><span class=cF1>start</span><span class=cF0> = </span><span class=cF5>TSCGet</span><span class=cF0>;
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<a name="l21"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i < SAMPLE_SIZE; i++)
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<a name="l22"></a> </span><span class=cF7>{</span><span class=cF0>
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<a name="l23"></a> #</span><span class=cF1>exe</span><span class=cF0> {</span><span class=cF5>PassTrace</span><span class=cF0>(</span><span class=cFE>0b10000000000</span><span class=cF0>);};
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<a name="l24"></a></span><span class=cF2>//Time these insts</span><span class=cF0>
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<a name="l25"></a> d *= </span><span class=cFE>1</span><span class=cF0>.</span><span class=cFE>00001</span><span class=cF0>;
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<a name="l26"></a> #</span><span class=cF1>exe</span><span class=cF0> {</span><span class=cF5>PassTrace</span><span class=cF0>(</span><span class=cFE>0</span><span class=cF0>);};
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<a name="l27"></a> </span><span class=cF7>}</span><span class=cF0>
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<a name="l28"></a> </span><span class=cF1>end</span><span class=cF0> = </span><span class=cF5>TSCGet</span><span class=cF0>;
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<a name="l29"></a> test_time = </span><span class=cF1>end</span><span class=cF0> - </span><span class=cF1>start</span><span class=cF0>;
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<a name="l30"></a>
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<a name="l31"></a> </span><span class=cF6>"Measured Cycles:%12.6f\n"</span><span class=cF0>, </span><span class=cF5>ToF64</span><span class=cF0>(test_time - overhead_time) / SAMPLE_SIZE;
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<a name="l32"></a>}
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<a name="l33"></a>
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<a name="l34"></a></span><span class=cF5>TimeIns</span><span class=cF0>;
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<a name="l35"></a></span><span class=cF5>TimeIns</span><span class=cF0>;
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<a name="l36"></a></span><span class=cF5>TimeIns</span><span class=cF0>;
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</span></pre></body>
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