#LEE CHUN YONG# wrote: > Currently I am having the "call function" problem in the assembly > program. When I call a particular subroutine it never jump to the > desire subroutine. What are the causes of this problem? You didn't give much information. The CALL instructions work correctly. You are probably on a 16 family PIC and don't have PCLATH set correctly. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics