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You can now download POP for z16 dated May 5, 2022 from here once you have register with IBM ID: https://www.ibm.com/support/pages/zarchitecture-principles-operation I found this link this morning using Google search "z/Architecture Principles of Operation". I plan to compare table of operations arranged by name for z16 and z15 to generate list of new operations with name, opcode, and reference page unless someone already has done this and can share it. Don Higgins d...@higgins.net <mailto:d...@higgins.net> www.don-higgins.net
