Boots – shoes – and leggings
Patent
1993-03-31
1995-05-23
Heckler, Thomas M.
Boots, shoes, and leggings
395162, 364DIG1, 3642373, 364247, G06F 3153
Patent
active
054189624
ABSTRACT:
A video display adapter control system is provided for utilization in a data processing system which includes a processor, data storage, a video display device and one of multiple selected video display adapter cards. A text data file is generated, utilizing either a utility program, or manufacturer provided information, which specifies video adapter information for a specific video adapter card including: an identification of the particular video adapter; port addresses and indices; commands necessary to lock and unlock extended video registers; data which describes video mode resolutions and colors; and the necessary commands and data to enable selected video modes to be set and stored. A video display device driver is then provided which is capable of accessing and parsing the text data files and which creates multiple command structures in response thereto. Each time a video state is required as a result of a session being initiated, terminated or transferred to background or foreground status, the appropriate command structure is utilized to determine and set a particular group of registers, store the status of the current registers and/or return the video adapter to a known stable state. The command structures are implemented utilizing an inverted linked list of commands which may be traversed in a direct or inverted manner to efficiently set or retrieve the state of the video adapter.
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IBM Technical Disc. Bulletin vol. 31, No. 3, Aug. 1988 "Use of EGA SR Register for Improved Performance and Appearance of AP Character Displaying for Selected Color Combinations" pp. 364-366.
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INSPEC Abstracts.
Bodin William K.
Whitfield Dale R.
Dillon Andrew J.
Heckler Thomas M.
International Business Machines - Corporation
Jobse Bruce D.
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