On Sat, 2 Jul 2016 16:06:49 -0700, Ed Jaffe wrote:
>
>> ... If an address
>>> contains 7FFFFBAD then you know it's an intentionally "bad" address.
>>>
>> Hmmm. If you branch to it, do you get an addressing exception or a
>> specification exception. I'd guess the latter, but it might be model
>> dependent.
>
>It's not model dependent. You never get a specification exception on a
>branch.
>
??? From:
CICS Transaction Server
CICS Transaction Server 5.2.0
Troubleshooting and support
Dealing with the problem
Dealing with transaction abend codes
What type of program check occurred?
...
6
Specification exception - incorrect format of an instruction or invalid
registers.
Possible causes are as follows:
Overlaid program
Incorrect field lengths used in packed decimal multiply and divide
instructions
Branch to an odd-numbered address, caused by an overlaid register save
area
-- gil
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