Method and apparatus for addressing video RAMS and refreshing a

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364518, 364900, 340747, 340750, G06F 3153, G06F 1562

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active

049126580

ABSTRACT:
A graphics controller having the capacity for translating X and Y logical addresses of words in a bit map into corresponding physical row and column addresses of words in a plurality of memory chips, for addressing selected bits within a word and for refreshing a video monitor with and without window segments beginning and ending with bits located inside word boundaries.

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