Dynamic address translation with format control

Electrical computers and digital processing systems: memory – Address formation – Address mapping

Reexamination Certificate

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Reexamination Certificate

active

08037278

ABSTRACT:
What is provided is an enhanced dynamic address translation facility. In one embodiment, a virtual address to be translated and an initial origin address of a translation table of the hierarchy of translation tables are obtained. An index portion of the virtual address is used to reference an entry in the translation table. If the format control field is enabled, a frame address of a large block of data in main storage is obtained from the translation table entry. The large block of data is a block of at least 1M byte in size. The frame address is then combined with an offset portion of the virtual address to form the translated address of a desired block of data within the large block of data in main storage. The desired large block of data addressed by the translated address is then accessed.

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