Powerpc IRQ handling breaks strict EABI compliance

Valette Eric eric.valette at free.fr
Tue Feb 11 09:37:44 UTC 2003

Sergei Organov wrote:

> What I want to tell is that using of SYSV ABI/EABI indeed makes code smaller
> and faster, so it'd be fine if PPC port of RTEMS starts to support it again
> (the old RTEMS 3.x code did support it, BTW).

This was the reason of my latest post : changing IRQ code not to scratch 
R2 is indeed mandatory but have you any evidence of "faster and 
smaller". I can understand smaller but not sure faster as you freeze one 
machine registers. Can you point out part of asm and benchmark to see if 
modifications are really worth?

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