On Thu, 13 Aug 2009 11:05:39 -0400, Donald Johnson wrote:

>I just ran into something tryng to assemble...I have a program that I am
>assembling, and in my SYSLIB I have PDS-1 that uses a blocksize of 3120 and
>PDS-2 that uses 32720 (I didn't create this!).
>
>When I run with PDS-1 ahead of PDS-2, I get error messages ASMA057E
>Undefined operation code...
>
>When I run with PDS-2 ahead of PDS-1, it works fine.
>
>If this is no longer an issue, shouldn't IBM's own code work correctly?
>
Since you didn't get I/O errors, this appears not to be a BLKSIZE
problem.

o Read the Macro and Copy Summary and verify that the same macros
  were read from the same data sets in both cases.

o Add an overriding BLKSIZE=32720 do PDS-1 and see if the results
  differ.

-- gil

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