Method and apparatus for using video memory as system memory

Details Method and apparatus for using video memory as system memory Method and apparatus for using video memory as system memory

1997-09-22

2000-02-01

Chauhan, Ulka J.

Computer graphics processing and selective visual display system

Computer graphic processing system

Integrated circuit

345509, 345203, G06F 15167

Patent

active

060209038

ABSTRACT:
A method for using a video memory as a system memory in a computer having a system bios, the system memory, and a video graphic adapter (VGA), includes the steps of examining the system memory using the system bios when the computer switched is on, and determining the size thereof, determining whether to use a portion of a video memory reserved for the VGA as the system memory after referring to an initializing means and connecting the portion of the video memory to the system memory to be defined as an entire system memory when the portion of the video memory is used as the system memory, determining the mode for using the portion of the video memory as the system memory and the mode for using the remaining portion of the video memory as video graphic display, and related register values, initializing the VGA, and jumping to the step of initializing the VGA if the portion of the video memory is not to be used as the system memory.

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