Hardware accelerator for an object-oriented programming language

• US 9,098,297 B2
• Filed: 06/14/2005
• Issued: 08/04/2015
• Est. Priority Date: 05/08/1997
• Status: Active Grant

• Current Assignee: NVIDIA Corporation
• Original Assignee: NVIDIA Corporation
• Inventors: Poff, Thomas C., Minami, John Shigeto, Koyama, Ryo
• Primary Examiner(s): Huisman, David J
• Application Number:
  US11/152,544
• Publication Number:
  US 20060031818A1
• Time in Patent Office: 3,703 Days
• Field of Search: 712/34, 712/35, 712/36, 717/116, 717/118
• US Class Current: 1/1
• CPC Class Codes: G06F 9/3879 for non-native instruction execution, e.g. executing a command; for Java instruction set
• CPC Class Codes: G06F 9/4488 Object-oriented
• CPC Class Codes: G06F 9/45504 Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
• CPC Class Codes: G06F 9/45529 Embedded in an application, e.g. JavaScript in a Web browser
• CPC Class Codes: G06F 9/544 Buffers; Shared memory; Pipes
• CPC Class Codes: G06F 9/545 where tasks reside in different layers, e.g. user- and kernel-space
• CPC Class Codes: G09G 2340/02 Handling of images in compressed format, e.g. JPEG, MPEG
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• CPC Class Codes: G09G 5/363 Graphics controllers

Abstract

An apparatus and method are provided including a hardware accelerator capable of being interfaced with a processor for accelerating the execution of an application written utilizing an object-oriented programming language. Such object-oriented programming language may include Java and/or C++.

Claims

1. An apparatus, comprising:

a hardware accelerator capable of being interfaced with a processor for accelerating the execution of an application written utilizing an object-oriented programming language by offloading the execution of the application from the processor to the hardware accelerator; and

a software stub that controls interfacing of the hardware accelerator with the processor;

wherein the object-oriented programming language includes at least one of a Java programming language and C++;

wherein the apparatus is operable such that object requests made by a thread running on the processor are offloaded to the hardware accelerator for allowing the processor to process instructions.

2. The apparatus of claim 1, wherein the object-oriented programming language is C++.

3. The apparatus of claim 1, wherein the object oriented programming language is the Java programming language.

4. The apparatus of claim 1, wherein the acceleration occurs at a hardware gate level.

5. The apparatus of claim 1, wherein the hardware accelerator is formed as a part of an application specific integrated circuit.

6. The apparatus of claim 1, wherein the hardware accelerator is further comprised of a Java.Net framework circuit.

7. The apparatus of claim 1, wherein the hardware accelerator is a component of a system including a bus via which the hardware accelerator communicates with a processor.

8. The apparatus of claim 7, wherein the system includes a display.

9. The apparatus of claim 8, wherein the system includes memory.

10. The apparatus of claim 7, wherein the system includes a personal data assistant.

11. The apparatus of claim 7, wherein the system includes an Internet-capable telephone.

12. The apparatus of claim 1, wherein instances and methods of application framework classes are offloaded to the hardware accelerator.

13. The apparatus of claim 1, wherein the hardware accelerator comprises an Input/Output request queue interacting with the processor for receiving and sequentially storing the instructions pending execution of each instruction;

a task processor for processing the instructions from the Input/Output request queue; and

an active object list for tracking the number of reference counts to an instance and for deallocating an instance that is not in use based upon a result of the task processor processing the instructions.

14. The apparatus of claim 1, wherein the hardware accelerator implements at least one Java programming language application framework, wherein the at least one Java programming language application framework comprises a set of classes that embodies an abstract design for solutions to a number of related problems.

15. The apparatus of claim 1, wherein a part of the hardware accelerator'"'"'s memory is predesignated to hold object descriptors and parameters, where at a start of each object descriptor there is a status byte indicating whether a particular object space is in use.

16. The apparatus of claim 1, wherein the apparatus is operable such that the object requests made by the thread running on the processor are offloaded through the software stub to the hardware accelerator.

17. The apparatus of claim 1, wherein the apparatus is operable such that the object requests are offloaded to an Input/Output request queue of the hardware accelerator and an object request is removed from the Input/Output request queue when a task processor allocates memory for the requested object.

18. A method, comprising:

accelerating the execution of an application written utilizing an object-oriented programming language, using a hardware accelerator by offloading the execution of the application from a processor to the hardware accelerator; and

controlling an interface between the hardware accelerator and the processor with a software stub;

wherein the object-oriented programming language includes at least one of a Java programming language and C++;

wherein object requests made by a thread running on the processor are offloaded to the hardware accelerator for allowing the processor to process instructions.

19. The method of claim 18, wherein the object-oriented programming language is C++.

20. The method of claim 18, wherein the object oriented programming language is the Java programming language.

21. The method of claim 18, wherein the acceleration occurs at a hardware gate level.

22. The method of claim 18, wherein the hardware accelerator is formed as a part of an application specific integrated circuit.

23. The method of claim 18, wherein the hardware accelerator is further comprised of a Java.Net framework circuit.

24. A computer program product embodied on a non-transitory computer readable medium, comprising:

computer code for accelerating the execution of an application written utilizing an object-oriented programming language, using a hardware accelerator interfaced with a processor by offloading the execution of the application from the processor to the hardware accelerator; and

computer code for controlling an interface between the hardware accelerator and the processor with a software stub;

wherein the object-oriented programming language includes at least one of a Java programming language and C++;

wherein the computer program product is operable such that object requests made by a thread running on the processor are offloaded to the hardware accelerator for allowing the processor to process instructions.