On 21.01.2015 19:36, Georg Icking-Konert wrote: > hello all, > > I am currently trying to port the STM8S Standard Peripheral Library to > SDCC > (http://www.st.com/web/en/catalog/tools/FM147/CL1794/SC1807/SS1754/PF258009). > If I succeed it would open up the whole range of examples and libs > available on the STM homepage. In addition, since the STM32 SPL is very > similar, it would provide an easy transition path from STM8/sdcc to > STM32/gcc and back. If/when it works I will make the code available as a > patch since the SPL license prohibits distributing the source code, > modified or not :-( > > Anyway, right now I got stuck at 2 points for which you can hopefully > help me: > > 1) how do I declare and implement the trap handler? According > to http://sourceforge.net/p/sdcc/patches/224/ the keyword "__trap“ is > available via patch (2014-02-22). Is this already part of 3.4.0 (#8981; > 2014-04-5) and, if yes, how do I use it? If not, is it planned for the > next release which is due when? > > 2) in the function declaration Cosmic, IAR and Resonance all have the > respective interrupt token before the function name. Therefore the SPL > does it as follows: > stm8s.h: #define INTERRUPT __interrupt > stm8s_it.h: INTERRUPT void AWU_IRQHandler(void); > Unfortunately SDCC expects the keyword „__interrupt“ after the function > name, e.g. "void TIM4_ISR(void) __interrupt(23);“. Is there any way to > modify macro INTERRUPT in stm8s.h so that the keyword is attached to a > line, even though it uses no brackets? If not, it won’t be 100% > compatible (i.e. without change) with the examples and other STM libs - > which is my target… > > I’m sure there will be more issues, but that’s it for today. For your > kind support thanks a lot in advance! > > Greetings, > Georg Icking-Konert
The patch has not been applied yet. It adds a new keyword, and I don't feel familiar enough with all the backends at the moment do decide on this. Maybe when looking at all the backends, there is a better way to do it instead. If this is an important feature to stm8 users, I can apply the patch (so it would be in the next release; if we come up with a better way later, we can still change the syntax then). Philipp
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