On Wed, May 25, 2011 at 7:04 PM, Jeff Stevens wrote: > [...] that seem so trivial in assembler but have no obvious solution in > C18. > You probably already know this, but you can do inline assembler for those parts. I don't understand what you mean by "specific" to C18. I assume you know C well, and PIC18 assembler well, so everything should transfer over. Port names are the same (if I can remember correctly), and all other register names are the same. The compiler specifics (optimizations, etc), are listed in the hep manual. What specifically are you looking for? --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .