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Move Controller for Refresh Matrix Buffer of CRT Display

IP.com Disclosure Number: IPCOM000052010D
Original Publication Date: 1981-Apr-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Ringle, TW Van Dyke, MS [+details]

Abstract

Two move controllers are provided for a refresh matrix buffer of a CRT display, the first to effect columnar movement and the second to effect row movement, the use of the controllers thereby effecting a scroll right/left or a scroll up/down motion. The move controller is also utilized to move characters from a special font table to the buffer, thereby freeing the host processor from this chore.