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  2. RPG400-L
  3. May 2004

Re: Large Return values (was Re: Variable Length Field Question)

On Thu, 20 May 2004 11:00:08 -0400
 Hans Boldt <boldt@xxxxxxxxxx> wrote:
> It's because you're dealing with stack storage. At any
> time after the procedure returns, that area of storage is
> subject to reuse, typically by calls to other procedures,
> but also (depending on CPU and O/S) by random machine
> interrupts. Simply, you just can't trust anything on the
> popped side of the stack pointer on any hardware. (For
> me, it's a lesson I learned the hard way while writing a
> LISP interpreter in PDP-11 assembler language way back in
> 1978.)

Ok, that's what I assumed.  Thanks for the info!

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