Folks, I have posted code at 
http://code.midrange.com/6d4d39e9e7.html that
is intended to exercise the cvtch procedure (to convert hex characters to
the binary data they represent).
 
I have struggled with this instruction time and again over the years, and
always end up writing my own.  I was inspired and encouraged by Scott's
example here 
http://archive.midrange.com/rpg400-l/200205/msg00309.html - and
that does work great without changes on this system.  However, my code does
not, and I don't see gaping differences, aside from the length of the
buffers and so on.
(Note, there was much more to this program than what you see... but I have
stripped it down to this minimum-failing module in order to support the
debugging process.  
 
The error experienced when running this on a V5R3 system occurs when
executing the cvtch() function:
Message ID . . . . . . :   C2M3001       Severity . . . . . . . :   30      
Message type . . . . . :   Diagnostic                                       
Date sent  . . . . . . :   04/16/10      Time sent  . . . . . . :   05:18:22
                                                                            
Message . . . . :   A domain error in a math function occurred.             
Cause . . . . . :   An input argument is outside the domain for which the   
  mathematical function is defined.                                         
Recovery  . . . :   Supply input values that are consistent with the        
  mathematical definition of the function.                                  
 
Would someone please enlighten me as to why I struggle so with this one?
Stragely enough, I never have such issues with cvthc.  Go figure.
 
Dennis E. Lovelady
AIM/Skype: delovelady      MSN: fastcounter@xxxxxxxxxxxx
 <
http://www.linkedin.com/in/dennislovelady>
www.linkedin.com/in/dennislovelady --
If you lined up all the cars in the world end to end, someone would be
stupid enough to try to pass them, five or six at a time, on a hill, in the
fog. 
 
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