Early retiring instruction mechanism, method for performing the same and pixel processing system thereof

Abstract

An early retiring instruction mechanism, a method for performing the early retiring instruction mechanism and a pixel processing system employing the early retiring instruction mechanism applied to a graphic processor unit (GPU) are described. The pixel processing system comprises an early retiring instruction mechanism and a pixel shader. The early retiring instruction mechanism selectively retires a plurality of instructions in a first program in order to generate at least one early retiring instruction in a second program. The pixel shader is connected to the early retiring instruction mechanism. The pixel shader fetches the second program and decodes at least one early retiring instruction to execute the second program therein for processing a plurality of pixels. Then, the pixel shader checks whether the pixels in the process of the early retiring instruction generated from early retiring instruction mechanism are directly issued to leave the pixel shader in advance. The early retiring instruction is an explicit retiring instruction, a retiring flow-control instruction or an instruction having a retire bit.

Description

technical field [0001] The present invention relates to an instruction retirement mechanism and its method, and a pixel processing system for implementing the retirement mechanism and the method, in particular to an instruction early retirement mechanism (Early RetiringInstruction Mechanism) and an instruction early retirement method, and a pixel processing system for executing the early retirement mechanism and the early retirement method. Background technique [0002] FIG. 1 is a block diagram of a pipeline architecture of a graphics processor of the technology. The graphics processor 10 mainly includes a triangle (triangle) setting unit 12, a pixel processing unit 14, and a depth processing unit 16. The pixel processing unit 14 includes a pixel shader 18 and a texture unit (texture unit) 21 and 21 connected to the pixel shader 18. Color interpolator (color interpolator)12. [0003] Divide the surface of a three-dimensional object into several triangles, which are arrang...

AI Technical Summary

Problems solved by technology

However, when the shader implements the SIMD branch processing architecture, all points must execute all instructions once, so not only is it the same as not using branches, but all points must execute complex special effects branches with a long number of instructions, and additionally The processing time of more branch instructions and the branch with a shorter number of instructions are far less efficient than directly executing complex special effects

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