Lpc2000

--- In lpc2000@yahoogroups.com, "Bill Knight" <BillK@t...> wrote:
> I have had problems with the code for interrupt functions generated 
by
> gcc for the ARM over many versions of the compiler.  The problems 
have
> shown up with registers being used for local variables not being 
saved
> and problems with returning to interrupted Thumb mode code.  A while
> back I created a set of MACROS for entering and leaving interrupt
> routines that I now use on a routine basis.  I do not know if gcc
> 3.4.1 generates fully functional interrupt code but the MACROS 
should
> work with it anyway.  The code is in the files section on Yahoo in
> UT040803A.zip.
> 
> Regards
> -Bill Knight
> www.theARMPatch.com

The best way around all these issues, IMHO, is to use an assember 
wrapper that calls C functions. The wrapper can then be tuned to meet 
all your needs (eg. supporting nested interrupts, thumb safety etc) 
in a far more predictable and controllable way than trying to do 
stuff in C.


-- Charles