I think if Mark had said: ("movfw FILE" is a MPASM macro .....) it would have pointed the person to the MPASM manual instead of the data sheet. A constant #$$%@#$ on the list is that people don't RTFM. In this case, adding that it was a MPASM macro might have been enough clarification as to where additional info could be found. Anyone seen a PIC programmer's reference card with the macros on it? I think mine just has the instructions straight out of the data sheet. (I guess since most coders now wear t-shirts there's not a place to put pocket protectors and reference cards) -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist