try:
setlvar cntr 0

while cntr<100 do
  *whatever*
  setlvar cntr cntr+1
endwhile

or, if you're using expression programming, include the same in your
while/begin/end construct.

i think (don't quote me, ok?) that the logical expression evaluated as the
*while* is looking for a variable to test directly, rather than another
calculation construct.  The parsing logic evidently doesn't allow for
another verb... but it's easily remedied, anyway

* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *