[En-Nut-Discussion] Not fixed!!!: Re: confirmed!!! Re: NutOS 4.4.0 on ARM7: possibly bug in NutEnterCritical / NutExitCritical

[Ole Reinhardt]

Hi,

> > is there both a stack frame pointer AND a stack pointer?
> 
> Something similar popped up in my brain as well. May be there's another 
> register we can use.

That was my first thought too, but having portability in mind we should
not not design the critical sections too hardware specific.

Is there a real reason why passing a variable would hurt? Defining a
special (hardware specific) type like "crit_section_t" would help us to
be compatible with later inventions and ports too.

> I had to admit, that this LR used for ARM's call/ret confuses me every 
> time again. Anyone else here with a more ARM-compatible brain structure?

Sorry me either :(

Bye,

Ole

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