Hi Gilles On Friday 23 February 2007 20:01, Gilles Chanteperdrix wrote: > Philippe Gerum wrote: > > On Wed, 2007-01-31 at 01:58 +0100, Philippe Gerum wrote: > > > Ok, no more distant rumblings about x86_64: a Xenomai port to this > > > architecture has officially started. A preliminary version of the > > > I-pipe for x86_64 is now available, which I'm going to use to port the > > > Xenomai core. > > > > Here we are. The following revised I-pipe patch is stable enough to run > > the Xenomai trunk/ on a 4-way Opteron, and on qemu-x86_64 0.8.2 too: > > http://download.gna.org/adeos/patches/v2.6/x86_64/adeos-ipipe-2.6.19-x86 > >_64-1.0-02.patch > > > > The status of the Xenomai/x86_64 port is as follows: > > > > - real-time support in user-space is mostly ok, except the FPU > > management over the Xenomai domain which is broken beyond all > > recognition. Gilles, as already discussed, I won't resist to let you > > bang your head on this wall instead of mine, because 1) this will allow > > me to switch to the pending issues people have raised on the lists so > > far, 2) I'm fundamentally evil, 3) the fact that you once did dare > > rewriting the FPU support for Xenomai/x86 clearly shows that you do have > > some masochistic tendencies anyway. > > Ok, I will do it. Do you have an URL of a datasheet at hand (since the > x86 code does not work, there must be some difference) ?
http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_739_7044,00.html has links for assorted low level docs - Vol.5 should cover the area in question. > By the way, there is a change that I made to the i386 context switching > routine which I think you should make to the x86_64 one: mark all > register as output registers, this prevent the compiler from considering > that the value of a particular register survived the context > switch. Regards, Paul. _______________________________________________ Adeos-main mailing list [email protected] https://mail.gna.org/listinfo/adeos-main
