Thanks for the response. We're looking into it.

Jean

----- Original Message -----
From: "Olav Kappert" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, March 22, 2001 3:58 PM
Subject: Re: [HP3000-L] What could cause a STACK UNDERFLOW in
S.P.L.?????????


> HI:
>
> This can happen if you are using an array and the index pointer points to
an
> location in stack that is less than absolute stack location of zero.
>
> Example:
> a, b and c are defined as 1 word each, and d is defined as one word with 5
> elements.
> d index 5 is the last element of d;
> d index - 5 points to a location before stack definition.
>
> Hope this helps.
>
> Olav.
>
> "TRAPP,RICH (Non-A-Loveland,ex1)" wrote:
>
> > Jean,
> >   This can happen when the program code tries to pop too many words off
of
> > the stack.  If you're doing anything with control-y traps, the trap
handler
> > may be trashing the stack and or jumping into the wrong place in the
code
> > and doing a pop when it shouldn't be.
> >
> > RAT
> >
> >
> >
> > Rich Trapp <mailto:[log in to unmask]>
> >
> >
> > Consulting for Agilent Technologies, Loveland, Colorado.
> >
> > Managed Business Solutions <http://www.mbsnav.com/>
> > 200 South College Avenue
> > Fort Collins, Colorado 80524-2811
> > 970.679.2221 (voice)
> > 970.669.3071 (fax)
> >
> > -----Original Message-----
> > From: LES BUREAUX DE CRÉDIT DU NORD INC [mailto:[log in to unmask]]
> > Sent: Thursday, March 22, 2001 1:04 PM
> > To: [log in to unmask]
> > Subject: What could cause a STACK UNDERFLOW in S.P.L.?????????
> >
> > I've heard of stack overflow, but not underflow.  I found very little
> > information on the newsgroup library.  After removing several segments
of
> > SPL programs causing a BOUND VIOLATION, the computer is still not happy
and
> > responds with a STACK UNDERFLOW.
> >
> > Jean Huot
> > Northern Credit Bureaus Inc.
>