No, ten váš kód bude zrejme o čosi rýchlejší. DF je vo flags na desiatom bite takze or s 00000000010000000000 by zrejme pomohol.<br><br>Na Core 2 Duo mal kod<br>"time dd if=/dev/zero bs=500 count=2000 2>/dev/null | tr '\0' x > /dev/null"<br>
<br>real 0m0.009s<br>user 0m0.001s<br>sys 0m0.008s<br><br>U mňa doma nejakých 18 tisicin:)<br><br><div class="gmail_quote">2009/6/15 Matus UHLAR - fantomas <span dir="ltr"><<a href="mailto:uhlar@fantomas.sk">uhlar@fantomas.sk</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">> On 15.06.09 21:56, Matus UHLAR - fantomas wrote:<br>
> > stringove instrukcie uz v 32 a 64bit modoch nefunguju?<br>
<br>
</div><div class="im">On 15.06.09 22:07, Matus UHLAR - fantomas wrote:<br>
> a mohli by, takze cyklus vratane inicializatie by mohol vyzerat takto:<br>
><br>
> mov al, 0x78<br>
> mod ecx,1000000<br>
> mov edi, esp<br>
> mov es, ds<br>
> or flags, <df> ; toto by malo setnut flag DF neviem ako sa to pise<br>
> rep stosb<br>
<br>
</div>a pri tom poslednom treba este zabezpecit aby address-size atribut<br>
instrukcie bol 32bit, co uz vobec neviem ako sa robi ;-)<br>
<div class="im">--<br>
Matus UHLAR - fantomas, <a href="mailto:uhlar@fantomas.sk">uhlar@fantomas.sk</a> ; <a href="http://www.fantomas.sk/" target="_blank">http://www.fantomas.sk/</a><br>
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