[LinuxBIOS] mmx problems on VIA EPIA-SP resolved

Eric W. Biederman ebiederman at lnxi.com
Tue Sep 6 22:35:04 CEST 2005

Doug Bell <dbell at nxtv.com> writes:

> We are working on VIA EPIA-SP with C3-2 processsor and have resolved
> problems related to the use of the mmx as seen in the
> auto.inc. The code was hanging unless we used -mno-mmx in Config.lb. 

Ok.  Likely an issue that romcc gets confused about which
instructions are part of the mmx,sse1, and sse2 extension.  As
the implementation filters by the registers used than by the

> We then modified /src/cpu/via/model_centaur_init.c cpu_table[] to
> include 
> {X86_VENDOR_CENTAUR, 0698},   // VIA C3 Nehemiah

Sounds reasonable.

> If anyone else is doing work on this board please let us know! Our code
> isn't far enough along to check in.

A branch might work.


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