RE: Trying to display subfile

[Buck Calabro <mcalabro@xxxxxxxxxxxx>]

I believe the hardware limit was just that: hardware.  I'm reaching back a
long way here, but I think that the original S/38 5250 workstation
controller had a small internal workstation buffer, as did the 5294 remote
controller and the 5251-12.  I have not had a problem displaying more than
128 I/O fields in 5250 emulation since the 400 came out.  Some of the
original 5250 emulations were exact hardware emulations, including the small
buffer.  With a small hardware buffer, there were only enough entries to map
128 input capable fields.

Buck Calabro

> -----Original Message-----
> From: leif@ibm.net 
> Sent: Thursday, June 17, 1999 7:07 AM
> To:   MIDRANGE-L@midrange.com
> Subject:      Re: Trying to display subfile
> 
> I don't know. Does anybody on the list?
> 
> > So does that rule apply in 5250 emulation?
> > 
> > The original 5250 hardware had a limit of 128 fields.
> > I don't think that has changed.
> > 
> > > There is a limit to the number of fields one can put on a display. The
> > DDS
> > > manual says that there is a limit of 4095 displayable fields.  The
> > > Application Display Programming manual says that the maximum number of
> > input
> > > capable fields is 256, but can be reduced depending on several
> > uncommon
> > > factors.  The manual also says that you'll get a CPF5192 when the
> > limit is
> > > exceeded.
> 
> 
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