Two companies that allow you to download a lite version of their compiler are; www.crownhill.co.uk (Pic/Let Basic) or www.celestialhorizons.com.au The good thing about these two is that as you compile you can see the assembler equivalent produced and its pretty accurate. I have a Basic for Pic that I don't use any more (Prof Version) but we'd have to talk about a token consideration for me to email it to you Colin -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads