Le mardi 27 avril 2010 à 17:07 -0700, Kip Warner a écrit : > You're right, that can indeed be done with a few lines of code. e.g. > cpuid instruction. The problem is that you then have to perform a branch > every time you could potentially use hardware acceleration: a condition > for when, say, SSE2 is available, and another for a generic > implementation. > > It isn't ideal performance wise.
The simplest solution is to put the routines in a shared library and to build two versions of the library. Put the i486 one in /usr/lib and the SSE2 one in /usr/lib/i686/sse2. -- .''`. Josselin Mouette : :' : `. `' “A handshake with whitnesses is the same `- as a signed contact.” -- Jörg Schilling -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1272449593.27381.6.ca...@meh
