Segment descriptor present bit recycle and detect logic for a memory management unit

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United States of America Patent

PATENT NO 4827400
SERIAL NO

06848513

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Abstract

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A data processing system includes a logical address to a physical address translator in an extended memory management unit. A 128 word memory stores task segment descriptor words which include a base address. A 16 word memory stores corresponding present bits to indicate if the addressed task segment descriptor is present in its memory. This arrangement allows a 128 word memory to be cleared in 16 memory cycles.

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Patent Owner(s)

Patent OwnerAddress
HONEYWELL INFORMATION SYSTEMS INC A CORP OF DE200 SMITH ST WALTHAM MA 02154

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brown, Richard P Acton, MA 15 379
Curley, John L North Andover, MA 10 309
Dunwell, Llewelyn S Lynn, MA 2 25
Peters, Arthur Sudbury, MA 23 450

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