an undocumented SID function
----------------------------

    "Pass points" are like "break points" in SID except that they
/don't/ all get removed after each break.  What a concept.  Also, the
break occurs /after/ the pass address.

    P		display all pass points and counts
    Paddr	set a pass point
    Paddr n	set a pass point, don't break until count passes

   -P		remove all pass points
   -Paddr	remove a pass point

    This info was found in a message on Compuserve, 6/87.


a SID nasty
-----------------------------

    The command to display/change a memory location (byte, word or
longword) is

    Saddr, or SWaddr, or SLaddr

But beware of typing

    SBaddr

The 'B' is taken as the leading digit (hex) of the address.  Usually
this makes the address exceed physical memory.  A bus error message
appears and SID crashes, losing your position.