Simple but more CPU is the testauth macro with keys keyword.

Sent from my iPhone

On Dec 28, 2013, at 9:12 AM, "Peter Relson" <[email protected]> wrote:

>> Is there a simpler way to see whether we 
>> were called in key 8
> 
> I think that the odds are high that you should not be testing for "key 8". 
> Rather you should be testing for "non-system key" i.e., key 8-15.
> 
> Note also that if you were entered by PC that might have changed key, you 
> need to get the PSW via the ESTA instruction (you can use this also if you 
> saved info on the linkage stack). Nevertheless, if you are running still 
> in user key so can use EPSW, 
> 
> EPSW  R14,R0
> TMLH  R14,X'0080'    Key 8-15?
> JO    It_Is_UserKey  Yes, branch
> 
> Peter Relson
> z/OS Core Technology Design
> 
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