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32-bit media digital signal processor

A digital signal and processor technology, applied in the field of 32-bit media digital signal processors, can solve the problems of waste of resources, inconvenient programming, complex system, etc., and achieve the effect of improving performance

Inactive Publication Date: 2007-01-31
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, complex data exchange makes the whole system very complex
Moreover, the whole system is just a simple patchwork of two cores, which requires double the resources, so there is a waste of resources
There is also a big inconvenience in programming

Method used

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  • 32-bit media digital signal processor
  • 32-bit media digital signal processor
  • 32-bit media digital signal processor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The system structure diagram of the specific embodiment of the present invention is as figure 1 shown. Including integer execution unit (MDF), signal execution unit (MDD), media execution unit (MDS) three instruction systems.

[0026] The pipeline of instructions see figure 2 , including instruction fetch, decode, address, memory access, execution, and write-back six-stage pipeline.

[0027] Instruction fetch: Get the instruction data from the instruction storage unit, look up the TLB and Tag entries, and convert the instruction virtual address into a physical address

[0028] Decoding: Decode the instruction, give the decoding control signal and data signal, BPU and PCU use it to control part of the state; access the register file; give information about whether the instruction cache is hit or not.

[0029] Address: Use two address calculation units that can work in parallel to calculate the operand address, and support multiple instruction addressing modes.

[00...

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PUM

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Abstract

The invention discloses a microprocessor and computer system, aims to provide a 32 bits media digital signal processor. The processor includes plastic processor core, flow control unit, command taking unit, commands, operation number reading, data, command high speed buffer, data high speed buffer, on-chip memory, universal register file, media register file, bus interface unit, system bus, integer executing unit, signal executing unit, media executing unit, arithmetic logic unit, barrel shifter, integer multiplier and adder, and by-pass unit and system control coprocessor. The media digital signal processor command structure in the invention can be divided into register-register command facing memory operation, and register-memory command facing to memory operation. It is good at executing system program, and executing digital signal processing program, it ha characters of RISC processor and DSP processor, it is an integral of the RISC and DSP system structures.

Description

technical field [0001] The present invention relates to microprocessor and computer system, more specifically, the present invention relates to a kind of 32 media digital signal processors, it supports register-oriented RISC instruction, memory-oriented DSP instruction and the media instruction of SIMD class split mode operation , which constitutes the rich addressing mode and instruction operation structure system of the media digital signal processor. Background technique [0002] Traditional RISC (Reduced Instruction Set Computer) instructions and Digital Signal Processor DSP (Digital Signal Processor) instructions are typical representatives of register-register and register-memory instructions, respectively. RISC has always adhered to the fundamental principle of "simplification", adopting a register-oriented addressing mode, with instructions of equal length, and a simple format. RISC instructions can only perform one operation in one clock cycle, and an instruction c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/38
Inventor 刘鹏姚庆栋李东晓王维东史册陈晓毅周莉蔡钟吴皓郑伟赖莉雅琚小明
Owner ZHEJIANG UNIV