Harry H. Arends wrote: > Could someone explain this construction to me. > I looked in the MPASM help file but cant find a description. > > xorlw (0x05 ^ 0x20) ; CV545 The "^" is documented in the manual, so I guess you're asking why someone would do this? To answer that, we need to see a few more lines around this one. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist