Hi All.
For those of you not familiar with the Salvo RTOS, it's an RTOS with an
especially small RAM footprint that is well-suited to the MSP430.
Pumpkin has certified the Archelon / Quadravox, IAR, ImageCraft and Rowley
Associates compilers for use with Salvo.
We've been asked to do an mspgcc port. One thing we would need (and I
couldn't find in the documentation) is a __monitor__ keyword (all 4 of the
abovenamed compilers support this). When applied to a function like this:
void MyFn (args) __monitor__
{
...
}
the net result is that the very first two instructions in the function are:
push SR
dint
and the very last instruction is
reti
i.e. the function saves the GIE status upon entry, and restores it upon exit.
Since this will affect a function's stack frame, this is something that
must be supported natively in the compiler, and cannot be done via in-line
assembly.
Are there any plans to support this keyword? If so, when would it be folded
into a new mspgcc release?
Thanks,
---------------------------------------------------------------
Andrew E. Kalman, Ph.D. a...@pumpkininc.com
Pumpkin, Inc.
home of Salvo, The RTOS that runs in tiny places.(TM)
http://www.pumpkininc.com
