Company Filing History:
Years Active: 2003
Title: Biyu Pan: Innovator in Processor Design
Introduction
Biyu Pan is a notable inventor based in Cupertino, CA. He has made significant contributions to the field of processor design, particularly in the area of load instruction handling. His innovative approach has led to advancements in how processors manage out-of-order and speculative load instructions.
Latest Patents
Biyu Pan holds a patent for a method that involves sending both a load instruction and retrieved data from a load buffer to an annex prior to forwarding the load data to the register file. This patent describes a processor that performs precise trap handling for out-of-order and speculative load instructions. It keeps track of the age of load instructions in a shared scheme that includes a load buffer and a load annex. All precise exceptions are detected in a T phase of a load pipeline. Data and control information concerning load operations that hit in the data cache are staged in a load annex during the A, A, A, and T pipeline stages until all exceptions in the same or earlier instruction packet are detected. Data and control information from all other load instructions is staged in the load annex after the load data is retrieved. Before the load data is retrieved, the load instruction is kept in a load buffer. If an exception occurs, any load in the same instruction packet as the instruction causing the exception is canceled. Any load instructions that are “younger” than the instruction that caused the exception are also canceled. The age of load instructions is determined by tracking the pipe stages of the instruction. When a trap occurs, any load instruction with a non-zero age indicator is canceled.
Career Highlights
Biyu Pan is currently employed at Sun Microsystems, Inc., where he continues to innovate in the field of processor technology. His work has been instrumental in enhancing the efficiency and reliability of modern computing systems.
Collaborations
Throughout his career, Biyu Pan has collaborated with notable colleagues, including Marc R Tremblay and Jeffrey Meng Wah Chan. These collaborations have further enriched his contributions to the field.
Conclusion
Biyu Pan's innovative work in processor design has made a lasting impact on the technology industry. His patent reflects a deep understanding of load instruction handling, showcasing his expertise and commitment to advancing computing technology.