On Wed, 18 Jun 2025 at 23:21, Dan Greiner <dan_grei...@att.net> wrote:
> The z17 version of the IBM z/Architecture Principles of Operation > (SA22-7832-14), the IBM z/Architecture Reference Summary (SA22-7871-12), > and other z17-related architecture documentation can be found at the > following (thanks for the link Bruce): > > > https://www.ibm.com/docs/en/systems-hardware/zsystems/9175-ME1?topic=library-2 > > I've successfully downloaded both without any sort of logon or IBM ID > required. > Ah, the "Ineffective-nonconstrained-transaction facility". The time has come; TBEGIN on a z17 always fails. :-( Tony H.
