Self-indexing register file pile device

Abstract

The invention discloses a self-indexing register file pile device. The self-indexing register file pile device comprises a register storage body and peripheral logic of the register storage body, wherein the register storage body is configured to have a self-indexing region and a common region; the size of the self-indexing region and a starting register number can be configured flexibly; and a literal register number way is adopted for indexing in the common region. The register file pile device when initiating a reading-writing startup signal calculates the currently necessary index number automatically, and the reading and writing operations are within the self-indexing region; and when the reading and writing operations reach to the border of the self-indexing region, the next operation is turned to the starting position of the self-indexing region automatically. The self-indexing register file pile device has programming convenience and can save power consumption of a processor.

Description

technical field [0001] The invention mainly relates to the technical field of integrated circuit design, in particular to the structure of a processor register file stack, which is closely related to ASIC (Application Specific Integrated Circuit) design and integrated circuit structure. Background technique [0002] Whether it is a CISC (Complex Instruction Set Computer) processor or a RISC (Reduced Instruction Set Computer) processor, designing general-purpose registers inside the processor core is a common method. High-speed registers can greatly accelerate the speed of data exchange. For small data operations, the intermediate result data does not need to be written into a relatively slow memory, and the data is directly exchanged inside the core through the register file to improve the operation speed. [0003] For application-specific processors (ASIPs), especially computing-intensive processors, how to improve data utilization in specific algorithms while using the pri...

AI Technical Summary

Problems solved by technology

For example, the Chinese invention patent publication with the application number 02126222.5 and the invention name "A Reconfigurable Register File and Its Design Method" proposes a reconfigurable register file design method that is compatible with multiple instructions. The hardware converts the target address and physical address of the accessed register number in the new instruction set, so as to achieve instruction-level reconstruction. This idea is relatively new, but for the processor determined by the instruction set, this part of the hardware logic is redundant.

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