Patent ID: 6026450
Filing Date: 2000-02-15
Classification: G06F

Abstract:
A data transfer control system comprising:a source memory on which source word data are stored;a transfer control table having a source memory designation field, a desired region designation field, a shifting amount designation field, and a destination memory designation field;a source selection circuit which causes source designation word data to be read from the source word data stored on the source memory according to source memory designation data contained in the source memory designation field and provides the source designation word data to a transfer data bit operation circuit;a transfer data bit operation circuit that receives the source designation word data, extracts from the source designation word data only word data required for transfer as valid word data according to desired region designation data contained in the desired region designation field, shifts the valid word data according to shifting amount designation data contained in the shifting amount designation field, and provides the shifted valid word data to a destination selection circuit;a destination selection circuit that receives the shifted valid word data, selects a destination region for storing the shifted valid word data according to destination memory designation data contained in the destination memory designation field, and provides the shifted valid word data to a destination memory; anda destination memory which receives and stores the shifted valid word data in the destination region.