View source for PicoJava

'''picoJava''' is a [[microprocessor]] specification dedicated to [[native code|native execution]] of [[Java bytecode]] without the need for an [[interpreter (computing)|interpreter]] or [[just-in-time compilation]]. The aim is to speed bytecode execution up by up to 20 times, compared to standard Intel [[Central processing unit|CPU]] with a [[Java virtual machine]].<ref name="webopedia"/> [[GNU Compiler Collection]] added picoJava support in 1999 as machine definition 'pj,'.<ref name="GCC-ML" /> The open-source version of picoJava has been implemented in an [[FPGA]].<ref name="pj2-in-FPGA" />

== See also ==
* [[Jazelle]]
* [[MAJC]]

== Notes ==
{{reflist|

<ref name="webopedia">
{{Cite web|url=http://www.webopedia.com/TERM/P/picoJava.html|title=What is picoJava? Webopedia Definition|website=www.webopedia.com|date=10 June 1999 |language=en|access-date=2017-06-04}}
</ref>

<ref name="GCC-ML">
{{cite mailing list |url=https://gcc.gnu.org/ml/gcc-patches/1999-10n/msg00599.html |title=Patch: Support for picoJava |date=22 Oct 1999 |mailing-list=gcc-patches }}
</ref>

<ref name="pj2-in-FPGA">
Puffitsch, W. and Schoeberl, M. 2007. picoJava-II in an FPGA. In Proceedings of the 5th international Workshop on Java Technologies For Real-Time and Embedded Systems (Vienna, Austria, September 26–28, 2007). JTRES '07, vol. 231. ACM, New York, NY, 213-221. http://doi.acm.org/10.1145/1288940.1288972
</ref>

}}

== References ==
{{refbegin}}
* McGhan, Harlan; O’Connor, Mike (October 1998). "PicoJava: A Direct Execution Engine For Java Bytecode". ''[[Computer (magazine)|Computer]]'', Volume 31, Issue 10: pp.&nbsp;22–30.
* O’Connor, J. Michael; [[Marc Tremblay|Tremblay, Marc]] (March/April 1997). "picoJava-I: The Java Virtual Machine in Hardware". ''[[IEEE Micro]]'', Volume 17, Issue 2: pp.&nbsp;45–53.
* Hangal, Sudheendra; O'Connor, J. Michael (May/June 1999). "Performance analysis and validation of the picoJava processor." ''[[IEEE Micro]]'', Volume 19, Issue 3.
{{refend}}

== External links ==
* [http://www.sun.com/software/communitysource/processors/picojava.xml picoJava] at Sun Community Source Licensing (SCSL)
* [http://pr.fujitsu.com/en/news/2000/04/5.html Release announcement (Fujitsu)]

{{Sun Microsystems}}

{{lowercase|picoJava}}

{{DEFAULTSORT:Picojava}}
[[Category:Java virtual machine]]
[[Category:Computer-related introductions in 1997]]


{{Compu-hardware-stub}}