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AR mode z/OS TSO/E Programming Services SA32-0973-00 |
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Access register (AR) mode is the address space control (ASC) mode in which a general register and the corresponding access register (AR) are used together to locate an address in an address/data space. Specifically, the general register is used as a base register for data reference and the corresponding AR contains a value that identifies the address/data space that contains the data. |
Copyright IBM Corporation 1990, 2014
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