65 lines
931 B
C++
65 lines
931 B
C++
/*
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lock{} is a compiler statement
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which places asm LOCK instruction
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prefixes on code. Only use it on
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read-modify-write statements.
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It will generate invalid instructions
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if you misuse it and it will crash.
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$LK,"U","MN:U"$() to see what code was generated.
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*/
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#define CNT 0x1000000
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I64 glbl;
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U0 MPUnlockedInc(I64)
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{
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I64 i;
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for (i=0;i<CNT;i++)
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glbl++;
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}
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U0 UnlockedInc()
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{
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I64 i;
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CMPCmd *tempm;
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glbl=0;
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tempm=MPJob(&MPUnlockedInc,NULL,1,0);
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for (i=0;i<CNT;i++)
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glbl++;
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MPJobResult(tempm);
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"Correct Cnt:%X Actual Cnt:%X\n",CNT*2,glbl;
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}
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U0 MPLockedInc(I64)
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{
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I64 i;
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for (i=0;i<CNT;i++)
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lock //Can be used without {}
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glbl++;
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}
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U0 LockedInc()
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{
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I64 i;
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CMPCmd *tempm;
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glbl=0;
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tempm=MPJob(&MPLockedInc,NULL,1,0);
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for (i=0;i<CNT;i++)
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lock {
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glbl++;
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}
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MPJobResult(tempm);
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"Correct Cnt:%X Actual Cnt:%X\n",CNT*2,glbl;
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}
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UnlockedInc;
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LockedInc;
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