I have a vague recall that you couldn't do that in 3090-E but could in later machines.
But I might be confusing that with something else. Cheers, Martin From: IBM Mainframe Discussion List <[email protected]> on behalf of Mark Henderson <[email protected]> Date: Tuesday, 30 June 2026 at 17:47 To: [email protected] <[email protected]> Subject: [EXTERNAL] Zero-address-detection I stumbled upon this in Ch 4 of POPS in connection with some strange results I experienced when trying to do a MVCL from a dataspace whose origin was zero. The doc is far from clear and, frankly, looks incomplete so I'm wondering whether the subject is better described elsewhere. Note, I understand I can change the dataspace origin but that's not the essence of the question. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN Unless otherwise stated above: IBM United Kingdom Limited Registered in England and Wales with number 741598 Registered office: Building C, IBM Hursley Office, Hursley Park Road, Winchester, Hampshire SO21 2JN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
