In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote: Jon, I have seen code where _PARAMCNT is used upon entry of a subroutine. What if the isr interrupts when main code has just entered such a subroutine, and the isr code itself does a gosub to some subroutine that may take a variable number of arguments? That would affect _PARAMCNT I think. regards peter ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=3&m=157842#m176289 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)