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That old date routine was not only confusing for neophytes but also very
inefficient because it relied on truncation and therefore invoked (as I
understand it) exception-handling code beneath the covers on every
execution. AND it only worked for U.S. format (month-day-year) dates.

Trevor Briggs
Analyst/Programmer
Lincare, Inc.
(727) 431-1246
TBriggs2@xxxxxxxxxxx

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Vernon Hamberg
Sent: Monday, December 09, 2013 1:32 PM
To: RPG programming on the IBM i (AS/400 and iSeries)
Subject: Re: Alternatives to MOVEL - just curious

I agree that this works - but it's like the old multiplication technique

to shift date formats. It was a trick, and prone to strange looks until
we knew the trick.

As is the division technique. And there you may have to rely on
precision rules of the calculation.

Of course, as Trevor Briggs said - documentation - comments, right? :)

Vern

On 12/9/2013 12:20 PM, Booth Martin wrote:
Num4 = Num6 * .01;

On 12/9/2013 10:31 AM, Vernon Hamberg wrote:
Hi y'all

I'm looking at some code - the purpose is to put the 1st 4 digits of
a
6-digit variable into a 4-digit numeric variable.

It is being done with the MOVEL opcode now.

I'm wondering about efficient alternative methods. One I can think of
is
to use a data structure -

dcl-ds dsMoveL qualified;
num4 zoned(4);
num6 zoned(6) pos(1);
end-ds;

Anything simpler? Better performing?

I hope the syntax is right!! But you get the idea, right?

Vern


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