Information processing system, information compression device, information decompression device, information processing method, and program

An information processing system, comprising:

• an information compression device, including
• an information compressor which inputs and compresses configuration information containing at least one pair of address and data as compressed configuration information, and a compression control device which controls operations of the information compressor, and
• an information restoring device including an information decompressor which inputs and decompresses the compressed configuration information in which at least one pair of compressed address information and compressed data information is integrated, and a restoring control device which controls the operations of the information decompressor,
• wherein:
• the information compressor includes
• a first input buffer which functions to temporarily store and separate the configuration information into a separated address information corresponding to the address and a separated data information corresponding to the data,
• an address differentiator which inputs the separated address information separated by the input buffer, calculates a difference between a currently processed first address and a previously processed second address processed right before said first address, and outputs said difference as a calculated difference address,
• a data divider which inputs the separated data information separated by the input buffer, divides the separated data information by having sixteen bits as a unit such that the separated data information is to be setting information of a reconfigurable device having a repeated configuration, and outputs divided data,
• an address compressor which functions to compress the calculated difference address differentiated by the address differentiator as compressed data information,
• a data compressor which functions to compress the divided data divided by the data divider for output as compressed data information, and
• a first output buffer which integrates the compressed data information compressed by the address compressor and the compressed data information compressed by the data compressor for output as the compressed configuration information;
• and
• the decompressor includes
• a second input buffer which reads out the compressed configuration information from a compressed configuration information memory which stores the received compressed configuration information and re-separates the compressed configuration information into a separated compressed address and separated compressed data,
• an address decompressor which executes decompression processing on the separated compressed address separated by the second input buffer to output difference address information,
• a data decompressor which executes decompression processing on the separated compressed data separated by the second input buffer to output divided data,
• an address adder which adds a current first difference information acquired from the address information decompressor and a previously acquired second difference information of acquired right before said first difference information to output a restored original address corresponding to the address of said configuration information prior to being compressed,
• a data coupler which couples a plurality of said divided data acquired from the data decompressor to output restored undivided data corresponding to the data of said configuration information prior to being compressed, and
• an output buffer which integrates the restored original address and the restored undivided data for output as a restored configuration information corresponding to said configuration information prior to being compressed by the information compressor.

An information processing method, comprising:

• for executing compression and decompression with an information processing system that includes i) an information compression device including an information compressor, which inputs and compresses configuration information containing one or more pairs of address and data, ii) a compression control device which controls operations of the information compressor, iii) an information restoring device including an information decompressor which inputs and decompresses compressed configuration information in which at least one pair of compressed address information and compressed data information is integrated, and iv) a restoring control device which controls operations of the information decompressor, wherein execution of the compression and decompression includes the sub-steps of:
• in the information compressor,
• temporarily storing and separating each of the one or more pairs of address and data of the inputted configuration information into one or more separated addresses and one or more separated data by way of an input buffer of the information compressor,
• for each of the one or more separated addresses, executing differential processing by an address differentiator of the information compressor to produce a differentiated address and, at the same time for each of the one or more separated data, executing dividing processing by a data divider of the information compressor to produce divided data by having sixteen bits as a unit such that each of the data is to be setting information of a reconfigurable device having a repeated configuration,
• by way of an address compressor of the information compressor, executing first compression processing on each differentiated address and, by way of a data information compressor of the information compressor, executing second compression processing to produce, respectively, a compression-processed address and a compression-processed data, and
• at an output buffer of the information compressor, integrating the compression-processed address and the compression-processed data to generate the compressed configuration information;
• and
• in the information decompressor,
• reading out the compressed configuration information from a compressed configuration information memory which stores the received compressed configuration information and re-separating the compressed configuration information into one or more separated compressed addresses and one or more separated compressed data by way of an input buffer of the information decompressor,
• executing decompression processing on each separated compressed address and each separated compressed data by way of, respectively, an address decompressor of the information compressor and a data decompressor of the information compressor to respectively produce a current difference address and divided data, and
• adding, by way of an address adder of the information decompressor, a current difference address acquired from the address decompressor and a previously acquired difference address to output a restored original address corresponding to address information of said compressed configuration information prior to being compressed in the information compressor;
• coupling, by way of a data coupler of the information decompressor the plurality of divided data acquired from the data decompressor to output restored undivided data corresponding to data information of said compressed configuration information prior to being compressed in the information compressor;
• and
• integrating, via the output buffer of the information compressor, the restored original address and the restored undivided data as a restored configuration information corresponding to said configuration information prior to being compressed in the information compressor.

A data recording device that has recorded thereon an information compression program comprising executable code that upon execution by a computer device causes the computer device to function as i) an information compressor which inputs and compresses configuration information containing one or more pairs of address and data, and ii) a compression control device which controls operations of the information compressor,

• the information compression program upon execution by the computer device causes the computer device to execute:
• a function which temporarily stores and separates the addresses and the data of the configuration information into, respectively, one or more separated addresses and one or more separated data;
• a function which inputs the separated addresses and, for each separated address, calculates a difference between a currently-processed first separated address and a previously processed second separated address processed right before said first separated address, and outputs said difference as calculated difference information;
• a function which inputs the separated data, divides the data by having sixteen bits as a unit such that each of the data is to be setting information of a reconfigurable device having a repeated configuration, and outputs divided data;
• a function which compresses the calculated difference information for output as compressed address information;
• a function which compresses the divided data for output as compressed data information;
• and
• a function which integrates the compressed address information and compressed data information for output as the compressed configuration information.

An information processing method, comprising:

• executing compression using an information compression device that includes i) an information compressor which inputs and compresses configuration information containing at least one pair of address and data and ii) a compression control device which controls operations of the information compressor, wherein execution of the compression includes the sub-steps of:
• in an input buffer of the information compressor, for each of said at least one pair of address and data, temporarily storing and separating the address and the data into separated address information and separated data;
• inputting the separated address information, calculating a difference between a currently-processed first separated address and a previously processed second address processed right before said first address, and outputting said difference as a calculated difference address information;
• inputting the separated data, dividing the data by having sixteen bits as a unit such that each of the data is to be setting information of a reconfigurable device having a repeated configuration, and outputting the divided data;
• compressing the calculated difference address information for output as compression-processed address information;
• compressing the divided data for output as compression-processed data information;
• and
• at an output buffer of the information compressor, integrating the compression-processed address information and the compression-processed data information to generate the compressed configuration information, and storing said compressed configuration information to a compressed configuration information memory of the information compressor.