Re: May need to update avr-as [Was: [Solved] GAS: Register equates ?]

[Jens Bauer <jens at plustv dot dk>]

Hi Erik.

Are you sure this works ?

Try using the register...


Love
Jens

On Sat, 18 May 2013 20:50:10 +1000, Erik Christiansen wrote:
> Hi Jens,
> 
> Well, I tried:
> 
> On 18.05.13 11:16, Jens Bauer wrote:
>> Unfortunately I have to do without info. I also have to do without
>> apt-get; I have only PowerMacs (eg. no intel). ...But regarding
>> register equates...
>> 
>> On AVR, try... rColor=17 ...and you will see it does not work.
> 
> and maybe your avr-as is past its use-by date, since I have no errors
> with:
> 
>    rColor = 17
>    .global rColor
> 
> and it works:
> 
> $ nm obj/foo.elf | grep rC
> 00000011 A rColor
> 
> using:
> 
> $ avr-as --version
> GNU assembler (GNU Binutils) 2.20
> 
> ...
> 
>> In other words: *ANY* equate that starts with lowercase 'r' would not
>> work for me, when I wrote some assembly-code for AVR.
> 
> I'll admit to having encountered that in the past, and assume that I
> updated avr-as to cure it, since I don't recall having done anything
> else.
> 
>> I ended up using the preprocessor #define instead (but I prefer to
>> avoid the preprocessor now).
> 
> Yes, I did the same for many years, since there are then no mysterious
> gcc interventions to fear. Now that my AVR coding is just a hobby, I'm
> risking cpp, for the convenience of automatic tuning of the reams of SFR
> addresses and bit numbers to the -mmcu=atmega...
> 
> I'll send a copy of "info gas" which you can read and search with your
> favourite text editor. (And maybe we should move any more AVR stuff off
> to the avr-chat or avr-gcc ML, where there's doubtless more interest in
> the topic?)
> 
> møjn,
> 
> Erik
> 
> -- 
> "Walking on water and developing software from a specification are easy
> if both are frozen."                                 - Edward V. Berard
>