[Stackless] New 3 platforms for Stackless Python

Christian Tismer tismer at tismer.com
Wed Mar 6 10:20:05 CET 2002

Russ Cox wrote:

>>How can we save&restore registers fast?
> Why are you convinced that this isn't fast?
> You've got to do what you've got to do -- save
> the registers that setjmp does.

This is slightly overdone. Setjmp doesn't know what we
know. For instance, there is probably no need to save FPU

I've attached the ICON ppc_aix coexpression switch code.
They are dealing with regs 13-31, and FP conditionally.
Not sure whether this is the same CPU, but it looks

ciao- chris

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