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ZealOS/docs/Demo/MultiCore/Lock.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=cF2>/*lock{} is a compiler stmt</span><span class=cF0>
<a name="l2"></a></span><span class=cF2>which places asm LOCK instruction</span><span class=cF0>
<a name="l3"></a></span><span class=cF2>prefixes on code. Only use it on</span><span class=cF0>
<a name="l4"></a></span><span class=cF2>read-modify-write statements.</span><span class=cF0>
<a name="l5"></a></span><span class=cF2>It will generate invalid insts</span><span class=cF0>
<a name="l6"></a></span><span class=cF2>if you misuse it and it will crash.</span><span class=cF4>
<a name="l7"></a></span><a href="https://zeal-operating-system.github.io/ZealOS/Compiler/UAsm.CC.html#l770"><span class=cF4>U</span></a><span class=cF2>() to see what code was generated.</span><span class=cF0>
<a name="l8"></a></span><span class=cF2>*/</span><span class=cF0>
<a name="l9"></a>
<a name="l10"></a>#</span><span class=cF1>define</span><span class=cF0> COUNT </span><span class=cFE>0x1000000</span><span class=cF0>
<a name="l11"></a>
<a name="l12"></a></span><span class=cF9>I64</span><span class=cF0> global;
<a name="l13"></a>
<a name="l14"></a></span><span class=cF1>U0</span><span class=cF0> MPUnlockedInc(</span><span class=cF9>I64</span><span class=cF0>)
<a name="l15"></a>{
<a name="l16"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l17"></a>
<a name="l18"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; COUNT; i++)
<a name="l19"></a> global++;
<a name="l20"></a>}
<a name="l21"></a>
<a name="l22"></a></span><span class=cF1>U0</span><span class=cF0> UnlockedInc()
<a name="l23"></a>{
<a name="l24"></a> </span><span class=cF9>CJob</span><span class=cF0> *tmpm0, *tmpm1;
<a name="l25"></a>
<a name="l26"></a> global= </span><span class=cFE>0</span><span class=cF0>;
<a name="l27"></a> tmpm0 = </span><span class=cF5>JobQueue</span><span class=cF0>(&amp;MPUnlockedInc, </span><span class=cF3>NULL</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>);
<a name="l28"></a> tmpm1 = </span><span class=cF5>JobQueue</span><span class=cF0>(&amp;MPUnlockedInc, </span><span class=cF3>NULL</span><span class=cF0>, </span><span class=cFE>1</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>);
<a name="l29"></a> </span><span class=cF5>JobResGet</span><span class=cF0>(tmpm0);
<a name="l30"></a> </span><span class=cF5>JobResGet</span><span class=cF0>(tmpm1);
<a name="l31"></a> </span><span class=cF6>&quot;Correct Count:%X Actual Count:%X\n&quot;</span><span class=cF0>, COUNT * </span><span class=cFE>2</span><span class=cF0>, global;
<a name="l32"></a>}
<a name="l33"></a>
<a name="l34"></a></span><span class=cF1>U0</span><span class=cF0> MPLockedInc(</span><span class=cF9>I64</span><span class=cF0>)
<a name="l35"></a>{
<a name="l36"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l37"></a>
<a name="l38"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; COUNT; i++)
<a name="l39"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF2>/*Can be used without {} */</span><span class=cF0> global++;
<a name="l40"></a>}
<a name="l41"></a>
<a name="l42"></a></span><span class=cF1>U0</span><span class=cF0> LockedInc()
<a name="l43"></a>{
<a name="l44"></a> </span><span class=cF9>CJob</span><span class=cF0> *tmpm0, *tmpm1;
<a name="l45"></a>
<a name="l46"></a> global = </span><span class=cFE>0</span><span class=cF0>;
<a name="l47"></a> tmpm0 = </span><span class=cF5>JobQueue</span><span class=cF0>(&amp;MPLockedInc, </span><span class=cF3>NULL</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>);
<a name="l48"></a> tmpm1 = </span><span class=cF5>JobQueue</span><span class=cF0>(&amp;MPLockedInc, </span><span class=cF3>NULL</span><span class=cF0>, </span><span class=cFE>1</span><span class=cF0>, </span><span class=cFE>0</span><span class=cF0>);
<a name="l49"></a> </span><span class=cF5>JobResGet</span><span class=cF0>(tmpm0);
<a name="l50"></a> </span><span class=cF5>JobResGet</span><span class=cF0>(tmpm1);
<a name="l51"></a> </span><span class=cF6>&quot;Correct Count:%X Actual Count:%X\n&quot;</span><span class=cF0>, COUNT * </span><span class=cFE>2</span><span class=cF0>, global;
<a name="l52"></a>}
<a name="l53"></a>
<a name="l54"></a>UnlockedInc;
<a name="l55"></a>LockedInc;
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