kravnus wolf wrote : > ...but there are holes(General purpose registers) > in SFR that we can use to place variables. I have never seen that. Do you have an example device where there are "holes" in the SFR area that can be used to "place variables" ? Or maybe I'm missunderstanding what you're saying, quite possible... :-) Regards, Jan-Erik. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist