An enhanced video driver for the IBM personal computer

Author

Imam, Ibrahim N. ; Nguyen, Dung Tien

Author_Institution

Dept. of Eng. Math. & Comput. Sci., Louisville Univ., KY, USA

fYear

1989

fDate

9-12 Apr 1989

Firstpage

1227

Abstract

The authors present the design and implementation of the enhanced video driver (EVD), a display handler to be used on IBM personal computers equipped with an IBM color graphics adapter (CGA). Once activated, this software resides permanently in memory and, effectively, becomes a part of the operating system. The EVD provides the user with a virtual video buffer which is more than three times larger than the video memory supplied by the CGA. It also contains the handler for a full set of functions that allows the users to access this buffer using interrupt calls in exactly the same way they access the video memory using the ROM-BIOS video services. A high-level language interface is also designed to enable the not-so-technical user to use this driver

Keywords

IBM computers; computer graphics; input-output programs; video equipment; CGA; EVD; IBM color graphics adapter; IBM personal computers; ROM-BIOS video services; display handler; enhanced video driver; handler; high-level language interface; interrupt calls; operating system; video memory; virtual video buffer; Buffer storage; Computer aided manufacturing; Computer displays; Computer graphics; High level languages; Image storage; Large screen displays; Microcomputers; Operating systems; Read-write memory;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '89. Proceedings. Energy and Information Technologies in the Southeast., IEEE

Conference_Location

Columbia, SC

Type

conf

DOI

10.1109/SECON.1989.132618

Filename

132618