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Hi A.,

I guess, it is S0CA, not S0C8, because S0C8 is for binary fixed point overflow.
S0CA is for decimal overflow.

This is the end of an old story. We had problems when we entered C routines with
the S0C8 mask bit in the PSW set, because the generated C code couldn't tolerate
this (there was some address arithmetic in some ANSI library functions which
used arithmetic left shifts that immediately led to S0C8 abends if this mask bit
was set ... so we had to switch off the S0C8 mask bit before entering these run
time functions). This was at a time when OS PL/1 V2.3 was still in use which did
a pretty good job on FIXEDOVERFLOW etc. with binary values, which we used all
the time; this is why we had the S0C8 active in our ASSEMBLER modules, too ...
but when moving to C, we had to get rid of this.

Then there was a period when S0C8 abends were captured by LE and neutralized
under the cover ... with massive performance impacts.

In the end, all LE languages including EP PL/1 (and C, of course) had to be run
with the S0C8 mask bit off.

Kind regards

Bernd



Am 22.03.2015 um 10:27 schrieb A.F.:
> Cited from
> http://www-01.ibm.com/support/knowledgecenter/SSQ2R2_7.6.1/com.ibm.ent.pl1.zos.doc/topics/ibmm2mst131.htm%23wq226:
> As documented elsewhere, under Enterprise PL/I, the
> FIXEDOVERFLOW/NOFIXEDOVERFLOW (or FOFL/NOFOFL) prefix applies only to
> FIXED DECIMAL operations.
>
>
> And, it is based on the Fixed-point overflow exception S0C8.
>
> A.
>
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