RE: [MI400] MI Newbie with XLATE instruction problem

["Bob Cozzi" <cozzi@xxxxxxxxx>]

Yes, way back when (in RPGIII days) the original XLATE and CAT opcode
created temp variables each time they were used in code and data was xlated
or cat'd into those work variables and then copied back to the Result field.
Fortunately that huge amount of overhead was quickly removed shortly after
the compiler shipped to customers.
-Bob


-----Original Message-----
From: mi400-bounces@xxxxxxxxxxxx [mailto:mi400-bounces@xxxxxxxxxxxx] On
Behalf Of Keith Carpenter
Sent: Tuesday, August 31, 2004 2:53 PM
To: MI Programming on the AS400 / iSeries
Subject: Re: [MI400] MI Newbie with XLATE instruction problem

Out of curiosity,  I checked what RPG does with...
C           'X':'O'   XLATEDATA      DATA

IRP...
XLATE DATA ,DATA ,.XL20001 , .XL30001 




----- Original Message ----- 
From: "Winchester Terry" <terry.winchester@xxxxxxxxxxxxxxx>
To: "'MI Programming on the AS400 / iSeries'" <mi400@xxxxxxxxxxxx>
Sent: Tuesday, August 31, 2004 10:30 AM
Subject: RE: [MI400] MI Newbie with XLATE instruction problem


> Right at the moment...not very lucky :(
> 
> Hmmmm...maybe it's time to learn about labels and jumps ;-)
> 
> > -----Original Message-----
> > From: mi400-bounces@xxxxxxxxxxxx 
> > [mailto:mi400-bounces@xxxxxxxxxxxx] On Behalf Of Dave McKenzie
> > Sent: Tuesday, August 31, 2004 12:41 PM
> > To: 'MI Programming on the AS400 / iSeries'
> > Subject: RE: [MI400] MI Newbie with XLATE instruction problem
> > 
> > 
> > Just to interject a cautionary note.  In the MI reference at
> > 
> > http://publib.boulder.ibm.com/iseries/v5r1/ic2924/tstudio/tech
> > _ref/mi/XLATE.htm
> > 
> > it says:
> > 
> > "If overlapped operands share all of the same bytes, the results are
> > predictable when direct addressing is used. If indirect addressing is
> > used (that is, based operands, parameters, strings with variable
> > lengths, and arrays with variable subscripts), the results are not
> > always predictable."
> > 
> > How lucky do you feel? :-)
> > 
> > --Dave
> > 
> > On Tue, 2004-08-31 at 08:39, Winchester Terry wrote: 
> > > <grin> 
> > >
> > > <snip>
> > > 
> > > Now to figure out which chapter covers varying
> > > length parameter strings...
> > > 
> > > Thanks again for the help Keith!
> > > 
> > > Terry
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