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Newsgroups: comp.lang.ada
Date: Fri, 5 Jul 2019 05:19:46 -0700 (PDT)
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Subject: Re: Odd AVR-Ada code generation issue with constant record type
From: Per Jakobsen <pdj@knaldgas.dk>
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Xref: reader01.eternal-september.org comp.lang.ada:56820
Date: 2019-07-05T05:19:46-07:00
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> First of all you are using an old compiler... Maybe upgrading the compiler (if possible) would help.

It might, although I *am* using the newest avr-ada version I can find. If there is a newer I will certainly try!?


> I would (in the following order):
> 1) declare the registers as Atomic (or Atomic and Volatile but that doesn't matter as Atomic implies Volatile).

Declaring the registers Atomic certainly helped a lot - No more run-time "calculations", although all constants are put into SRAM (like Reg_C above), instead of pure "LDI" instructions (Reg_B).


> 2) define constants for the values you are assigning.

Does not help - Exactly the same behavior.


Thanks for the Atomic hint!

Anyone knows if there is a newer version of avr-ada out there? Or have instructions on how to create a new?