[XviD-devel] New Trellis Quant

Marco Al marco at simplex.nl
Mon May 12 02:49:06 CEST 2003


From: "James Bilotto" <jb13 at gomerbud.com>

> you are right there, but that is why i brought it up. bzero() is supose to
> use dedicated hardware on 586 and higher CPU's, but now it semes as if
> they just have memset() use what bzero() and bcopy() used if you have the
> right CPU. so you are right.

Well bzero vs memset(0,.. on a modern PC isnt really relevant anymore,
instruction count in the inner loop is hardly going to be the limiting
factor on a modern PC for such simple code (the only really important
improvement which would be helpfull in some instances would be to use non
temporal stores, but memset wouldnt know when exactly to use em).

Marco



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