| 摘要 |
PURPOSE: To introduce a dynamic MIMD pipeline to a computer system by reading a succeeding instruction stream even when pipeline processing and execution of a 1st instruction stream are not finished in a pipeline circuit. CONSTITUTION: The processing unit includes receiving means 21, 22, 25 receiving an input instruction, plural pipeline processing means 26 executing an input instruction, and a dynamic activity recording table 27 to control the instruction execution of the processing means 26. Each of processing means 26a-26d stores and executes plural instructions and they are identified by definite identifiers (pipe numbers) 1-4 respectively. Since the instructions stored in each of the processing means 26a-26d are in various execution stages, a table 27 stores information relating to the instructions stored in each of the processing means 26a-26d. The information includes an identifier of the processing means to execute the instruction. Thus, the dynamic plural-instruction stream plural-data (MIMD) pipeline is used for the computer system to attain a high efficiency.
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