Hi Clyde, its really interresting discussion about HiTech's compiler. I think it should be so hard to write an optimizing compiler for 18c. Because 1) you have experience with Pic C. 18c has instructions compatible with 16c. 2) you make compiler for 68HC05 and 68HC11, specialy HC11 has similar opcodes to 18C. The compiler/optimizer should then take the well optimized code from this two CPU's and combine it together. For example 8-bit integer math and branch optimizing from HC11, from Pic C indirect call to functions. Andrej _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu