Re: *PSSR subroutine and the call stack

Simon Coulter wrote:

> Hello Albert,
> <<< snip >>>
>  For instance, a
> divide by zero operation is an error.  If you code it as:
>         C               DIV     0       RESULT
> this is an unmonitored exception and the RPG error handler causes an inquiry 
>message to be
> sent.  If you code it as:
>         C               DIV     0       RESULT                  --99--
> you are using indicator 99 in the LO column to monitor for exceptions on the 
>DIV operation.
> You can of course use %ERROR in more recent dialects of RPG IV.  If you code 
>it as in the
> first example but also have a *PSSR in the program then you are performing a 
>global exception
> monitor (like MONMSG CPF0000 in CL).

  <<<<snip>>>

Simon, correct me if I am wrong (no machine or manual handy) but I think that 
the LO indicator on
a DIV operation will signify that the result of the divide is less then zero, 
not that an error
has occured. Where as some of the non-file operation codes can have an error 
indicator defined
(CALL, IN etc.), I think DIV is the exception. In ye oldie days of RPG, prior 
to structured
operation codes, the resulting indicators were used on arithmetic operations to 
signify that the
result was <, > or  = to zero.

Regards

Paul Tuohy.

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