Free virtual machine software for linux

ARAnyM comes from Atari Running on Any Machine and is virtual machine software for running the Atari ST/TT/Falcon OS.
It is a virtual machine software for running the Atari ST/TT/Falcon operating systems (TOS, FreeMiNT, MagiC and others) and TOS/GEM applications on any kind of hardware - be it an IBM clone (read it as "PC", an Apple, an Unix server, a graphics workstation or even a portable computer.
We started this project to fill the demand of modern applications, games, demos and multimedia for higher CPU/graphics power. Quite frankly, you cant expect that 9-17 years old Atari hardware will replay fullscreen DivX movies, encode sound to Ogg Vorbis in real time or just compile a new FreeMiNT kernel or SDL game in a reasonable amount of time. Is that a reason to give up on Atari TOS/GEM altogether and switch to another platform/OS? No! ARAnyM is here to give you the much asked CPU speed, large amount of RAM, huge colourful graphics and anything else you need to keep running your favorite TOS/GEM applications.
We would like you to think about ARAnyM as about yet another TOS clone, similar to Medusa, Hades or Milan, but actually much cheaper and way more powerful. Our goal is to create a distribution installable from a floppy/CD that would turn any PC machine into full featured Atari power machine. If we were a hardware vendor we could even sell computers that would boot directly to TOS desktop! That could help all the remaining Atari users that wish to upgrade their aging machines.
Main features:
- MC68040 compatible CPU (including optional MMU!)
- MC68881 compatible FPU
- JIT Compiler for CPU and FPU (speeds up CPU+FPU up to 10x!)
- ST-RAM 14 MB
- Fast-RAM configurable 0-3824 MB
- Host accelerated fVDI graphics (large highcolor/truecolor resolutions)
- Access to Host OS filesystems using BetaDOS or MiNT native XFS driver
- Ethernet networking via host using MiNT-Net XIF driver
- TOS 4.x XBIOS compatible sound (16-bit 48 kHz stereo sound)
- Parallel port (bidirectional)
- MFP, IKBD, ACIA, VIDEL, BLITTER, FDC, IDE, DSP MC56001
Please note that most hardware emulation is there just to make TOS booting possible. It is not our goal to create an emulator of existing Atari machine. Dont expect that ill-designed applications will work as they would on original Atari machine. Still, our compatibility ratio is much much higher than any of the TOS clones achieved so far.
ARAnyM has been intended to run primarily on Linux/x86 but thanks to libSDL and effort of some ARAnyM team members it currently runs on the following platforms and operating systems:
- All 11 Debian GNU/Linux platforms
- MS Windows/x86 (Cygwin)
- NetBSD/x86
- OpenBSD/x86
- MacOS X/PPC
- Irix/SGI
- Solaris/Sun Sparc
- FreeMiNT/m68k (in progress)
- FreeBSD/x86 (in progress)
Please note that ARAnyM is tested and fully working on the Linux-ia32 only. Some of the other platforms/systems might not have all features enabled or might suffer from some bugs that are caused by limitations of the particular host operating system.
Enhancements:
- New release brings major speed up of the MMU version. FreeMiNT with MMU or Linux-m68k can be run on an average ARAnyM machine faster than on any real MC680x0 now. Mac OS X target has been improved and many smaller bugs have been fixed.

JEXN project is a simple, yet powerful java class that can be added to any Java 1.3 or later application.
In the unfortunate event that the application crashes the virtual machine redirects the System.err stream to a small JSX (Java Serialisation to XML) powered server application.
The server then forwards the exception stacktrace on to a user specified email address.
Enhancements:
- Added to field email validation.
- Enabled user specification of email subject and from fields and the name of the application JEXN monitors.

Jikes RVM is a compiler that translates JavaTM source files as defined in The Java Language Specification into the bytecoded instruction set and binary format defined in The Java Virtual Machine Specification.

You may wonder why the world needs another Java compiler, considering that Sun provides javac free with its SDK. Jikes has five advantages that make it a valuable contribution to the Java community: [OSI Certified Logo]

* Open source. Jikes is OSI Certified Open Source Software. OSI Certified is a certification mark of the Open Source Initiative.
* Strictly Java compatible. Jikes strives to adhere to both The Java Language Specification and The Java Virtual Machine Specification as tightly as possible, and does not support subsets, supersets, or other variations of the language. The FAQ describes some of the side effects of this strict language conformance.
* High performance. Jikes is a high performance compiler, making it ideal for use with larger projects.
* Dependency analysis. Jikes performs a dependency analysis on your code that provides two very useful features: Incremental builds and makefile generation.
* Constructive Assistance. Jikes strives to help the programmer write better code in two key ways. Jikes has always strived to provide clear error and warning text to assist the programmer in understanding problems, and now with release 1.19 Jikes helps point out common programming mistakes as documented in Effective Java.

Abridged from a FAQ entry which was adapted from some material by Lou Grinzo for an article he wrote.

The fact that Jikes is a high-performance, highly compatible Java compiler that can be used on almost any computing platform makes it an interesting program and worth investigating for almost any Java programmer. But Jikes is also notable because it lies at the center of two events: the adoption of open source philosophy and practice by large corporations, and the continued growth of Java for Linux.

Its worth pointing out that Jikes is not, and is not intended to be, a complete development environment -- it is simply a command line compiler. It should not be considered a replacement for more complete tools, such as Source Navigator or IBMs VisualAge for Java which provide sophisticated graphical IDEs (Integrated Development Environments).

The Jikes compiler was released in binary form in April 1997 on the IBM alphaWorks site. Jikes for Linux was released on 15 July 1998. The response was overwhelming -- Jikes had more downloads in the three months after the announcement than in the fifteen months before the announcement.

Around the end of March 2002, IBM opened a fledgling community hosting location attached to their developerWorks site with Jikes as a founding member. Approximately 3 years later this server was decommissioned and the most active projects migrated into SourceForge.net hosting options. During those three years Jikes was the #1 most popular project every month, often by a large margin. We approached nearly 250,000 downloads while residing at dw/oss, and had been consistently tallying triple digit daily downloads.

Release of Jikes for Linux was soon followed by requests to open up the source. Many notes and comments from users suggested this would be a good idea. The source was released under a liberal license in December 1998 to make a very visible demonstration of IBMs commitment to open standards and to Java Technology, to make Jikes more reliable and accessible, to encourage more widespread use of Java Technology, to encourage standardization of Java Technology, and to gain some experience actually running an open source project. This marked the start of one of IBMs first efforts in the open source arena.

The original alphaWorks version of Jikes was written by Philippe Charles and Dave Shields of the IBM T. J. Watson Research Center. For awhile after the release of the source they continued to work on the compiler as contributors; however, shortly after the project migrated to developerWorks Open Source Server they were officially moved off onto other projects within IBM. Today there are no IBMers who work on Jikes as part of their job description. Jikes survives today soley based on the free time contributions of members of the open source community.

The source code is available under IBMs Public License, which has been approved by the OSI (Open Source Initiative) as a fully certified open source license. The project provides access to the complete CVS development tree, which includes not only Jikes, but also the source for the Jacks Test Suite and the Jikes Parser Generator used to build Jikes. Jikes is included in many Open Source Operating Systems. The Jacks Test Suite is a replacement for the Jikestst package.