Patent ID: 6678804
Filing Date: 2004-01-13
Classification: G06T

Abstract:
A memory access control apparatus comprising:input for accepting assignment of a plurality of blocks set in a storing area of memory where data can be read and written and managing whether data writing has already occurred or not to each of the blocks; read access control means for accepting setup of initializing data written in the plurality of blocks at first and sending back the data written in any one of the plurality of blocks or the initializing data set to the block to an access source according to whether data writing has already occurred or not to the block when a read access occurs to the block; and write access control means for accepting setup of initializing data written in the plurality of blocks at first and writing the initializing data that has been set and data to be written with a write access in any one of the plurality of blocks, or the data to be written, in the block according to whether data writing has already occurred or not to the block when the write access occurs on the block.