RE: what is unclear about 01 02 03 -Reply

[Neil Palmer <npalmer@xxxxxxxxxxx>]

Hey Simon !
I wrote a program back in the 70's that used all indicators 01-99 - and
I was DAMN proud of it at the time too !    :-), so then you move on to
KA-KY, U1-U8, OA, OF, OV, etc. etc. - then you start saving them in one
byte fields and restoring them for subroutines !
I think I ran into a problem when I could only AND together 7 lines in
the calcs ! 
It was my first RPG program, and I'd taught myself how to wrote it
reading the manuals on the night shift while I was an operator.


Neil Palmer                                AS/400~~~~~      
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> -----Original Message-----
> From: Simon Coulter [SMTP:shc@flybynight.com.au]
> Sent: Thursday, May 07, 1998 6:07 AM
> To:   MIDRANGE-L@midrange.com
> Subject:      Re: what is unclear about 01 02 03 -Reply
> 
> At the risk of boring the enlightened and irritating the benighted ...
> 
> Comments should illuminate not reiterate.  Tell me WHY you did
> something not what you did.  The what should be 
> obvious from the code (although some of the examples posted here give
> the lie to that).  The why is rarely 
> obvious.
> 
> Anyone still using the *INKx indicators needs their head read.  Maybe
> the geezers instantly know which key 
> *INKP is but there are more obvious ways;  Assigning *IN01 to *IN24 to
> the function key is more obvious due the 
> mnemonic relationship between the key and the indicator.  Better yet
> is to use the AID byte from the feedback 
> area and avoid the indicators entirely.  Besides you simply don't need
> to use all those indicators.
> 
> Named indicators are already available in RPGIV with pointer support.
> Simply code the following:
> 
> D @Indicator        S                  *       INZ(%ADDR(*IN))
> D Indicators        DS                         BASED(@Indicator)
> D  SflInz                                51  51  
> D  SflClr                                52  52
> D  SflDsp                                53  53
> D  SflDspCtl                             54  54
> D  SflEnd                                55  55
> D  SflNxtChg                             56  56
> 
> Then you can do things like:
> 
> C                     IF      SflRRN > *ZERO
> C                     EVAL    SflDsp = *ON
> C                     ENDIF
> C                     EVAL    SflDspCtl = *ON
> 
> Regards,
> Simon Coulter.
> 
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