I have recently discovered the PIC16C84 - it is indeed a wonderous chip!
 However, I struck a problem with my
first large-ish program.

All went well until I added another small bit of code and it crashed.  I
 backtracked and started to de-bug it.
After a number of frustrating hours and much fiddling, I discovered that the
 problem occured only when the
program reached 256 bytes. Originally, the last operation was a RETLW.  When I
 moved this up the program, the
problem disappeared!  Further investigation showed that a RETURN or RETLW on the
 100H boundary would not work -
it seems to lose the return address.  Any comments?  I am using MPASM 1.40

Richard Jackson
Adelaide S. Australia