Re: [AD] x color conversion again (w/ responsiveness patch) |
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> If SIGALRM is also asynchronous, then that means we'd definately have
> problems calling X routines from it. Also, the rest of the document
> leads me to believe that signals do indeed have the same stack trappings
> as a hardware interrupt.. ie. no FPU stack. I tried asking Bob in
> #allegro if MMX would have the same problems, but he's not around. It
> does make sense since I compiled Allegro with -mmmx which enables MMX
> usage in the produced asm, which includes the signal handlers.
MMX should be affected in the same way as the FPU, I think. It's been a
while since I looked at the details of the MMX instruction set, but this
is what I remember.
Evert