RE: Bitwise and and or

["Wilt, Charles" <CWilt@xxxxxxxxxxxx>]

Joe,

Off the top of my head, I doubt there is a C function to do this as it is an 
op-code integral to C.

However, you could roll your own C procedure and call that from RPG.

HTH,

Charles Wilt
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
 

> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx]On Behalf Of Joe Pluta
> Sent: Tuesday, March 22, 2005 10:11 AM
> To: 'RPG programming on the AS400 / iSeries'
> Subject: Bitwise and and or
> 
> 
> I'm currently trying to do some bitwise arithmetic at V5R1.  Something
> along these lines:
> 
> ALIGN_MASK       c                 x'C000'
> ALIGN_LEFT       c                 x'8000'
> ALIGN_RIGHT      c                 x'4000'
> ALIGN_CENTER     c                 x'C000'
> 
> Now, I want to check a variable called "flags".  In Java, it's pretty
> easy:
> 
>   if ((flags & ALIGN_MASK) == ALIGN_LEFT)
> 
> And in later versions of RPG, I can use the %BITAND BIF.  For 
> V5R1, what
> do you all suggest?  I can do something close using BITOFF, but for
> anything more than one byte (8 bits) it's a lot of work.
> 
> Is there perhaps a C function that ANDs two values?  I'm just fishing
> here so I don't have to write my own test routines.
> 
> Joe
> 
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