Re: QPROCT and QPRODT

"MXD is the same as POS and HI" - Agreed, when you look at the generated
code within a program. I'm not disputing this.

I naively expected QPRCRTPG to enforce instruction-specific synonyms for the
indicator/branch forms in the IRP (e.g. POS on ADDN is OK, but MXD and HI
aren't).

Richard

-----Original Message-----
From: mi400-bounces-Zwy7GipZuJhWk0Htik3J/[email protected] [mailto:mi400-bounces-Zwy7GipZuJhWk0Htik3J/[email protected]] On
Behalf Of James H. H. Lampert
Sent: 30 April 2010 19:17
To: MI Programming on the AS400 / iSeries
Subject: Re: [MI400] QPROCT and QPRODT

Richard Thomas wrote:

> My question is: Given that QPRCRTPG is responsible for converting "the
> symbolic representation of a machine interface (MI) program into an OPM
> program object." - (i.e. from the IRP) - then surely its IRP
syntax-checker
> should flag /MXD as an invalid indicator/branch form for the ADDN op-code?


But "MXD" is the same as "POS" and "HI."

They're just synonyms for the same configuration of the condition flags, 
provided purely for the sake of source code readability: surely you'd 
have trouble, without profuse comments, understanding that a ZC 
condition meant "greater than" on a comparison, "positive" on a numeric 
operation, and "mixed" on a TSTBUM. The synonyms allow us to use result 
mnemonics that match what we're conceptually testing for, rather than 
just matching the actual flags.

--
JHHL
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