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RISC processor device and data processing method thereof

A data processing and processor technology, applied in machine execution devices, electrical digital data processing, computing, etc., can solve the problems of performance impact and no hardware implementation, and achieve the effects of improving performance, preventing overflow, and expanding optimization space

Active Publication Date: 2008-07-16
LOONGSON TECH CORP
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Problems solved by technology

[0015] In the prior art, the contents of the first part of the flag register, i.e. the status flag (Status Flags) and the MIPS to X86 heterogeneous implementation of the floating-point flag register, have no hardware implementation, and the heterogeneous implementation of the virtual machine at the software level will produce a lot of problems. Large overhead, has a big impact on performance

Method used

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  • RISC processor device and data processing method thereof
  • RISC processor device and data processing method thereof
  • RISC processor device and data processing method thereof

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Embodiment Construction

[0050]In order to make the object, technical solution and advantages of the present invention clearer, a RISC processor device and its data processing method of the present invention will be further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] In the embodiment of the present invention, the MIPS64 instruction set of the reduced instruction set computer (RISC) is taken as an example, and the data processing method of the reduced instruction set computer (RISC) processor device of the present invention is described, but it should be noted that this Not limiting the present invention, the present invention is also applicable to other RISC situations.

[0052] Provide a kind of reduced instruction set computer (RISC) processor device in order to realize the present invention, as shown...

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Abstract

The present invention discloses a reduced instruction set computer (RISC) processor device and the data processing method thereof. The device comprises a decoder, a physical register file and an operational unit, as well as a data path connected among the decoder, the physical register file and the operational unit, wherein, each physical register in the physical register file is extended to 72 bits, and the whole data path is uniformly expanded to 72 bits; the operational unit comprises an extended operational module which is used in instruction operation to modify the flag bit of the 72-bit register in the physical register file and to carry out new instruction operation according to the modified flag bit. The present invention expands the optimization space of virtual machines and achieves the objective of improving the performance of virtual machines.

Description

technical field [0001] The invention relates to the technical field of computer processors, in particular to a reduced instruction set computer (RISC) processor device and a data processing method thereof. Background technique [0002] The virtual machine is a concept proposed by IBM in the 1960s and put into practice. At that time, the mainstream computer was a mainframe. By dividing the mainframe into multiple virtual machines and using the virtual machine monitor (Virtual Machine Monitor, VMM) to separate, a variety of different applications or multiple users can share this scarce resource. [0003] However, with the reduction of hardware costs and the enhancement of computing power, as well as the appearance of multitasking operating systems (OS), virtual machine monitors have gradually withdrawn from the stage of history, and microcomputers and personal computers (PCs) have become popular. [0004] However, since the power and success of virtual machines lies in the fa...

Claims

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Application Information

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IPC IPC(8): G06F9/38G06F9/318G06F9/30
Inventor 蔡嵩松李晓钰
Owner LOONGSON TECH CORP
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