GEOMETRY TRANSFORMATION PIPELINE ARCHITECTURE WITHOUT A STALL FOR 3-DIMENSION GRAPHICS, GEOMETRY TRANSFORMATION PROCESSOR AND REGISTER FILE ARCHITECTURE OF THE SAME

摘要

A geometry transformation pipeline architecture without stall for 3-D graphics, a geometry transformation processor, and a register file architecture thereof are provided to carry out geometry transformation and shading process by carrying out minimum steps for each pipeline and operate two peak data, thereby removing stall of the pipelines caused by dependency of data and reducing processing time delay. A geometry transformation pipeline architecture without stall for 3-D graphics includes an adding operation pipeline(ADDV) for adding two input values, a multiplying operation pipeline(MULV) for multiplying two input values, a comparison operation pipeline(CMPV) for comparing size of the two input values, a load operation pipeline for loading data from a memory, a storing operation pipeline(STRV) for storing data to the memory, a shift operation pipeline(MOVV) for shifting data between registers, a reciprocal number operation pipeline(CONV) for calculating reciprocal number for the input values, and a reciprocal square root operating pipeline(RSQ) for calculating reciprocal square roots for the input values. The reciprocal number operation pipeline and the reciprocal square root operating pipeline are respectively formed of four execution steps and the others are respectively formed of two execution steps.