Re: Re: MVT COBOL under MVS3.8j.

Pure guessing now, but I believe the trick depended on using "locate 
mode" processing rather than reading into a structure.
(and this was in 1968 thru 1970, so my memory is questionable, as is my 
terminology.)

/s/ Bill Turner, wb4alm



On 9/16/19 1:43 PM, Giuseppe Vitillaro giuseppe-yuD/ahkh7LvrZ44/[email protected] [H390-MVS] 
wrote:
>
> On Mon, 16 Sep 2019, 'Bill Turner, WB4ALM' [email protected] [H390-MVS] 
> wrote:
>
> > Joe, I vaguely remember see (and using) a "trick" that created a 
> negative
> > offset to the LLBB bytes in front of the buffer.
> >
> > I know that it was not a "supported" feature of COBOL, but that it 
> did work.
> >
> > It's been too many years, and I don't seem to have an old listing in 
> my files
> > that shows the way it was done.
> > Do you recall any "unsupported" features that actually worked?
> >
> > /s/ Bill Turner, wb4alm
> >
> If the "trick" works for both READ/WRITE, I would be
> really interested. It would be really a nice tool
> for managing variable length, possibly spanned, datasets
> from a cobol source.
>
> Peppe.
>
>