84 lines
4.7 KiB
Plaintext
84 lines
4.7 KiB
Plaintext
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<pre id="content">
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<a name="l1"></a><span class=cF2>/*lock{} is a compiler stmt</span><span class=cF0>
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<a name="l2"></a></span><span class=cF2>which places asm LOCK inst</span><span class=cF0>
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<a name="l3"></a></span><span class=cF2>prefixes on code. Only use it on</span><span class=cF0>
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<a name="l4"></a></span><span class=cF2>read-modify-write stmts.</span><span class=cF0>
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<a name="l5"></a></span><span class=cF2>It will generate invalid insts</span><span class=cF0>
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<a name="l6"></a></span><span class=cF2>if you misuse it and it will crash.</span><span class=cF4>
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<a name="l7"></a></span><a href="/Wb/Compiler/UAsm.HC.HTML#l653"><span class=cF4>U</span></a><span class=cF2>() to see what code was generated.</span><span class=cF0>
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<a name="l8"></a></span><span class=cF2>*/</span><span class=cF0>
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<a name="l9"></a>
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<a name="l10"></a>#</span><span class=cF1>define</span><span class=cF0> CNT 0x1000000
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<a name="l11"></a>
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<a name="l12"></a></span><span class=cF9>I64</span><span class=cF0> glbl;
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<a name="l13"></a>
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<a name="l14"></a></span><span class=cF1>U0</span><span class=cF0> MPUnlockedInc(</span><span class=cF9>I64</span><span class=cF0>)
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<a name="l15"></a>{
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<a name="l16"></a> </span><span class=cF9>I64</span><span class=cF0> i;
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<a name="l17"></a> </span><span class=cF1>for</span><span class=cF0> (i=0;i<CNT;i++)
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<a name="l18"></a> glbl++;
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<a name="l19"></a>}
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<a name="l20"></a>
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<a name="l21"></a></span><span class=cF1>U0</span><span class=cF0> UnlockedInc()
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<a name="l22"></a>{
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<a name="l23"></a> </span><span class=cF9>CJob</span><span class=cF0> *tmpm0,*tmpm1;
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<a name="l24"></a> glbl=0;
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<a name="l25"></a> tmpm0=</span><span class=cF5>JobQue</span><span class=cF0>(&MPUnlockedInc,</span><span class=cF3>NULL</span><span class=cF0>,0,0);
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<a name="l26"></a> tmpm1=</span><span class=cF5>JobQue</span><span class=cF0>(&MPUnlockedInc,</span><span class=cF3>NULL</span><span class=cF0>,1,0);
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<a name="l27"></a> </span><span class=cF5>JobResGet</span><span class=cF0>(tmpm0);
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<a name="l28"></a> </span><span class=cF5>JobResGet</span><span class=cF0>(tmpm1);
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<a name="l29"></a> </span><span class=cF6>"Correct Cnt:%X Actual Cnt:%X\n"</span><span class=cF0>,CNT*2,glbl;
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<a name="l30"></a>}
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<a name="l31"></a>
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<a name="l32"></a></span><span class=cF1>U0</span><span class=cF0> MPLockedInc(</span><span class=cF9>I64</span><span class=cF0>)
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<a name="l33"></a>{
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<a name="l34"></a> </span><span class=cF9>I64</span><span class=cF0> i;
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<a name="l35"></a> </span><span class=cF1>for</span><span class=cF0> (i=0;i<CNT;i++)
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<a name="l36"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF2>//Can be used without {}</span><span class=cF0>
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<a name="l37"></a> glbl++;
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<a name="l38"></a>}
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<a name="l39"></a>
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<a name="l40"></a></span><span class=cF1>U0</span><span class=cF0> LockedInc()
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<a name="l41"></a>{
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<a name="l42"></a> </span><span class=cF9>CJob</span><span class=cF0> *tmpm0,*tmpm1;
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<a name="l43"></a> glbl=0;
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<a name="l44"></a> tmpm0=</span><span class=cF5>JobQue</span><span class=cF0>(&MPLockedInc,</span><span class=cF3>NULL</span><span class=cF0>,0,0);
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<a name="l45"></a> tmpm1=</span><span class=cF5>JobQue</span><span class=cF0>(&MPLockedInc,</span><span class=cF3>NULL</span><span class=cF0>,1,0);
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<a name="l46"></a> </span><span class=cF5>JobResGet</span><span class=cF0>(tmpm0);
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<a name="l47"></a> </span><span class=cF5>JobResGet</span><span class=cF0>(tmpm1);
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<a name="l48"></a> </span><span class=cF6>"Correct Cnt:%X Actual Cnt:%X\n"</span><span class=cF0>,CNT*2,glbl;
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<a name="l49"></a>}
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<a name="l50"></a>
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<a name="l51"></a>UnlockedInc;
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<a name="l52"></a>LockedInc;
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</span></pre></body>
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