On Tue, Jun 26, 2012 at 5:05 PM, Simeon Felis <simeon.fe...@hs-regensburg.de
> wrote:
> Am 26.06.2012 13:12, schrieb Peter Bigot:
> >> According to
> >> http://mspgcc.sourceforge.net/manual/x1028.html
> >> READ_SR() should return the content of status register r2, however. When
> >> used, msp430-gcc will returns
> >>
> >> error: called object '__read_status_register()' is not a function
> >
> > While I agree this is probably a bad choice, turns out it's the manual
> > that's wrong. READ_SR and READ_SP have been defined as macros that
> > are not function-like since their introduction in 2001. It would not
> > be appropriate to change that now.
> >
> > Peter
> >
>
> Did I understand you right: The manual is wrong and should quote READ_SR
> instead of READ_SR()?
>
> I wasn't used to errors in system headers, and was digging manuals,
> google and my code for hours,
When something is well maintained, that is a reasonable approach.
However, when something isn't
(whether commercial or open-source doesn't really matter, its still the
same), confusion is pretty rampant.
> until I decided to look into the system
> headers.
That is why RTFS > RTFM.
> It wasn't obvious to find there, too. That wasn't fun at all
> and messed up my day. I thought this one-liner could save a lot of
> stress for other beginners like me. But: lessen learned ;)
>
I use... in the case of READ_SR...
top toolchain directories...
/opt/msp430-z1 (3.2.3 derivative, old mspgcc toolchain)
/usr/ (current 4.5.3 installed here)
/opt/msp430-45 (new 4.5.3 install home)
/opt/msp430-46 (4.6.3, will be new default for tinyos 2.1.2)
/opt/msp430-47 (experimental 4.7 with 20 bit support)
cd <one of the above>/msp430/include
grep -nHiR read_sr .
and see what it says.
yeah it can be a pain.....
>
> Bests
>
> Simeon
>
>
> --
> M.Eng. Simeon Felis
> Fakultät Elektro- und Informationstechnik
> Laboratory for Safe and Secure Systems, LaS3 - a software engineering
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>
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