Hi every one, May I take the opportunity here to ask some question about PCL. 1) Is PCL post increased by PIC after execution of instruction, or is it increased before execution of instruction? 2) Is the following set of codes have the same effect on program flow? A1 MOVLW 0x00 ADDWF PCL,f A2 GOTO A2 B1 MOVLW 0xFF .... ADDWF PCL,f B2 GOTO $-1 Tkanks & regards. WH Tan -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu