Panasonic Corporation

Tetsu Hosoki

Masaitsu Nakajima

A processing device included on a single chip includes processors capable of executing tasks in parallel and a cache memory shared by the processors, wherein the cache memory includes single-port memories and read data selection units, each of the single-port memories have one data output port, and each of the read data selection units is in a one-to-one association with each of the processors and selects a single-port memory which stores data to be read to a associated processor, from among the single-port memories.

Processing device, computer system, and mobile apparatus

A processor includes: an instruction buffer which holds a group of instructions that can be executed in parallel; an instruction decoding unit which decodes part or all of the group of instructions; and an instruction issuance control unit which detects whether or not a factor obstructing simultaneous execution of the group of instructions exists in the group of instructions and supplies the group of instructions to the instruction decoding unit by controlling the instruction buffer so that the instructions of the group of instructions are sequentially supplied when the factor exists and all the instructions of the group of instructions are simultaneously supplied when the factor does not exist.

Growing community of inventors

Osaka, Japan

Tetsu Hosoki