Title:
CLEARING METHOD FOR GRAPHIC MEMORY
Document Type and Number:
Japanese Patent JPH04328386
Kind Code:
A
Abstract:
PURPOSE: To clear the contents of a graphic memory in a short time.
CONSTITUTION: A clearing data of by one row is inputted to a SAM port 11 by a clearing circuit (buffer) 7. Thereafter, a write transferring cycle is executed by a clear mode controller 8, by writing the clearing data to a RAM port 12, the data of the RAM port 12 is possible to clear by a row unit and the time required to clear is shortened.
Inventors:
URATA KENJI
Application Number:
JP12447391A
Publication Date:
November 17, 1992
Filing Date:
April 30, 1991
Export Citation:
Assignee:
FUJI FACOM CORP
FUJI ELECTRIC CO LTD
FUJI ELECTRIC CO LTD
International Classes:
G06F12/00; G06T1/60; G09G5/00; G09G5/36; G11C11/401; (IPC1-7): G06F12/00; G06F15/64; G09G5/00; G09G5/36; G11C11/401
Attorney, Agent or Firm:
Kiyoshi Matsuzaki