Re: RPG COMP HiLoEq

[Jon Paris <jon.paris@xxxxxxxxxxxxxx>]

Under the covers RPG400 uses the single CMPNV MI instruction to do the whole thing. The curious can take Brabara's code and compile with GENOPT(*LIST) then look for the relevant BRK statement.

The docs for CMPNV state that it will "Assign a value to each of the indicator operands (indicator form)." in other words all of the indicators receive a new value - but it might be the same value that was there before.  

I am SO happy we got rid of that horrible crap in RPG IV.  It will however remain a mystery to me as to why those programs still exist - let alone get maintained rather than converted!



> On May 18, 2020, at 11:22 AM, Vernon Hamberg <vhamberg@xxxxxxxxxxxxxxx> wrote:
>
> I see a different rule - could be all comparisons are run, then logical ORs used for those that specify the same indicator.
>
> Again, my attempts at reverse engineering usually end up off the beam by quite some measure!
>
> Cheers
> Vern
>
> On 5/18/2020 7:22 AM, dfreinkel wrote:
> > In the RDi help text  it says:
> >
> > You must specify at least one resulting indicator in positions 71 to 76. DO
> > not specify the same indicator for all 3 conditions. When specified, the
> > resulting indicators are set on or off to reflect the results of the
> > compare.
> >
> > Basically, it implies the last condition tested will turn on or off the
> > indicator. So an indicator could be turned on and then subsequently off.
> > Hence the guideline to use different indicators.
> >
> > The question is: what is the order of the testing by the system?
> >
> > Darryl Freinkel
> > A4G.
> > Tel: 770.321.8562 Ext 111 | Cell: 678.355.8562
>
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