Rob Barris wrote: > >> As far as I can tell, by ignoring it, and making the assumption that > >> only low-level libraries will use the vector registers.
> This is not correct. OS's on P-III have to be updated to provide proper > context switch support for the SSE registers. I'm pretty sure Win98 has it > covered. It's really the same type of jump as AltiVec - use of SSE > features is not restricted to OS or driver code, apps use them too. I know that the OS has to support these registers. Latest development kernels *DO* support them. That is not the problem. The problem is with C++ exception sequences and setjmp being different for Altivec and non-Altivec code. How does Linux on ia32 handle linking between generic ia32 and Pentium-III user-space code? - Adrian Cox, AG Electronics
