Processor

Abstract

There is provided a processor capable of performing operation with a high operation frequency by reducing the delay generated between a memory and a register file. The processor (100) includes a register file (110) having a plurality of registers and a tag value generation circuit (102) for generating a tag value indicating the data attribute. Each of the registers has a data filed (112) for holding data and a tag field (111) for holding a tag value. When executing a load instruction for loading data into the register of the register file (110) from the memory (14), the tag generation circuit (102) generates a tag value according to the load instruction and stores it in the tag field (111).

Description

technical field [0001] The present invention relates to a processor capable of operating at a high operating frequency, and more particularly to a processor capable of increasing the operating frequency. Background technique [0002] There is now a processor that, when executing a load instruction, stores the data output from the memory after performing data transformation such as configuration change, code extension, zero extension, etc., according to the attributes of the data determined by the load instruction. in the register file (for example, refer to Patent Document 1). [0003] FIG. 1 is a diagram showing the configuration of a conventional processor. [0004] As shown in the figure, the processor 10 includes an instruction decoding circuit 11 , a memory read control circuit 12 , a memory write control circuit 13 , a memory 14 , an arithmetic unit 15 , a data conversion circuit 20 and a register file 30 . In addition, the register file 30 includes a plurality of re...

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Problems solved by technology

[0027] However, in the prior art described above, there is a problem that when data is output from the memory 14 to the register file 30, it is necessary to pass through the data conversion circuit 20, so the delay generated between the memory 14 and the register file 30 increase, this delay becomes a disadvantage in the development of processors that operate at high operating frequencies

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