> Oh, and btw, my assembler, MacPIC, hasn't got the foggiest idea of what w > and f are until I define them. I have now done so, and substituted w and f > in the code so I won't look (or BE) quite as ignorant the next time. Microchip provides include files for all the processors. These define the register names and other symbols like W and F. Even if you don't use the Microchip assembler you should use the include files if your assembler is source compatible. ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu