Free emulators and roms software for linux

Ultra NES Manager (UNM) is an application for managing "Nintendo Entertainment System" ROM files. It is also a frontend for "tuxnes" emulator.
It provides fast acces to your NES files, and helps you to set up "tuxnes" easily.
Usage:
UNM stores all your NES files in one directory ("~/.unm/roms" as default), and displays all of them on a main screen. It would be wise to copy some ROMs to that location.
To play some game you need to select it from the list of found ROMs on the main screen, and click on a "PLAY" button. A nes emulator will start the selected game. Options related to ROMs collection are located on "ROMs" tab, emulator options can be found on "Advanced tab". Have fun.
Enhancements:
- whole configuration is saved automatically after quitting the application
- recent played ROMs are now saved, so they appear even after program restart
- added tooltips for "Play!" tab
- added "Quit" button on "Play!" tab
- added confirmation dialog box at Esc keypress, so you wont quit your game accidentally (requires patching tuxnes)
- updated FAQ

Wide Area Link Emulator enables you to set and test various parameters of a WAN access link (also known as a bottleneck link) before testing on a fully-functional network.

Any ISP has a high bandwidth LAN (of the order of tens of Mbps, e.g. Ethernet) and a WAN access link with relatively low speeds (of the order of a few Kbps to a few Mbps). To be able to evaluate the ISPs performance, actual tests will have to be conducted on a live, fully functional network. This would imply enabling certain features in communication equipment which could be detrimental to the proper functioning of a commissioned network. To address such a problem of being able to characterize/quantify the network operation in terms of its performance with respect to various parameters, a test-bed emulating the ISPs connectivity to the Internet would be an ideal solution.

An important factor in setting up such a test-bed, is emulating the WAN Access Link. Using complex hardware is costly. Such a link can however be easily implemented by emulating the scenario on popular physical technology such as Ethernet. By changing the TCP/IP stack on a Personal Computer, the rate at which packets are injected into the network can be controlled and other necessary features can easily be added.

WALE was implemented in 2 phases and the first version can emulated bandwidths up to 8Mbps and uses FIFO queues with drop-tail.

WALE v2 can emulate bandwidths of up to 80Mbps(a 10-fold improvement over version 1) due to the stripped down version of Micro-second resolution timer being used in the Linux kernel. WALE also implements differentiated services are recommended by IETF. A hash-based packet classifier is used to classify packets into one of 3 queues (Expedited Forwarding, Assured Forwarding and Best Effort). A simple priority scheduling has been implemented between the queues.

Version 2 has been implemented in the Generic Device Layer of the Linux Kernel. The kernel version is 2.2.19. WALE2 kernel patch can be downloaded here. An ncurses based front end has been implemented for setting and viewing various parameters of the bottleneck link.

cereal is an emulation framework designed to allow easy emulation of interconnected modules. Its main component is an 8051 emulator module, so it can be used as an 8051 emulator.

The reason for writing cereal was an 8051 embedded controller which should control an engine using pulse-width modulation, read the resulting flow from a flowmeter, and regulate the output to keep flow at a given value.

In the real world, it takes about two seconds for the algorithm to stabilize, and emulating two seconds using conventional emulators (computing the engine input, the real flow, the feedback frequency) by hand is simply impossible to do.

Using cereal, it took about two hours to create a module emulating the engine/flowmeter combination, along with a window showing the current values. Then it is trivial to connect this module to the 8051 module and just sit back and watch the result.

Another, more trivial example is a multiplexed display/keyboard combination (in my case, selecting one of four 8-segment LCD displays). Instead of watching the port bits, why not create a module that shows the output graphically as four displays?

In addition to these possibilities, cereal offers breakpoints, watches, evaluate/modify dialog (which can solve 2 * x + 1 = 5). The KDE GUI also can be extended using KParts (8051 interface is provided as a KParts plugin).

Also included is a command interface usable for creating testsuites for your programs (or for cereal itself - cereal has over 400 tests in its testsuite), and a simple 8051 disassembler.

Unix Amiga Delitracker Emulator (UADE) plays most Amiga music file formats by simulating Amiga hardware and software.
Unix Amiga Delitracker Emulator plays over 180 Amiga music file formats and has three frontends for playing: a command line tool, an XMMS plugin, and a Beep Media Player frontend.
Enhancements:
- An improved version of the Special FX replayer was added.
- A new Special FX ST replayer was added.
- Bugs in song length database handling were fixed.
- Audacious 1.3 is supported.
- 15 instrument soundtracker module detection is supported.

Bristol is an emulator for diverse existing synthesisers and organs. Currently, ten are implemented and a mixer is under development.
Bristol Audio software consists of an audio engine and an associated photo realistic graphical user interface called Brighton.
You may also want to chown/chmod bin/bristolengine to suid root, to allow it to use low latency scheduling. This will reduce audio underruns. You can also consider increasing bufsize and preload to reduce this effect, but this will lead to increased latency. Also, if you are using an SB Live! card with ALSA drivers you may need to configure a bufsize of 2048 (ie. 512 samples), which can be compensated for by reducing preload to 2 or 1.
Bristol will currently run 16 voices on a P-II 450, and this is the default voicecount. You can run any number of simultaneous synths - they all connect to the same engine, they will all run with the same polyphony since the MIDI voice structures allow for dynamic assignment of sounds to voices. You can run with split keyboard (no interface at the moment), layering of multiple synths on a single midi channel, etc. Some of the synths max out my P-II 450 CPU when there is a lot of MIDI activity, notably the DX and Explorer at 16 voices.
You can start different synths with different voicecounts, so you could have a 16 voice hammond, a monophonic minimoog, and a 5 voice prophet running at the same time - the GUI will negotiate the voice allocation requirements with the engine. The first synth you start will create the voice count. Subequent synths can have less than the initial value. If you start a monophonic synth first, you will only have one voice available at any time for all synths. If you layer synths you will reduce your polyphony since the engine will allocate multiple voices per keyed note.
Pressing the single letter q in the GUI will send a quit signal and the app will exit gracefully(?). When the last synths quits the engine will also exit. If you press the single letter p then libbrighton will dump a screenshot to /tmp/ .xpm (in XPM format only).
There is a LOT of debugging sent to stdout. You may want to consider adding redirects to /dev/null in the bin/startBristol script to get rid of it. When the final rev-1 is uploaded most of this will be taken out.
Enhancements:
- The graphics were cleaned up, some bugs were fixed, and work on a pair of Oberheim emulators was started.

libutempter project provides a library interface for terminal emulators such as screen and xterm to record user sessions to utmp and wtmp files.
Enhancements:
- FreeBSD support has been fixed.

Stella is a multi-platform Atari 2600 VCS emulator.
Stella was originally developed for Linux by Bradford W. Mott, however, since its original release several people have joined the development team to port Stella to other operating systems such as AcornOS, AmigaOS, DOS, FreeBSD, IRIX, Linux, OS/2, MacOS, Unix, and Windows. The development team is working hard to perfect the emulator and we hope you enjoy our effort.
On this site youll find information about downloading, installing, using, and enhancing Stella. Youll also find useful information about the Atari 2600 and emulation.
Enhancements:
Added new video sub-system where fullscreen and windowed modes are treated
differently. Windowed modes now use -zoom_tia and -zoom_ui arguments,
while fullscreen modes can be specified by resolution using the new
-fullres argument.
- Widescreen video modes are now supported; Stella will simply center the
image with surrounding black borders.
- Many UI-related changes, including resizable ROM launcher and debugger
windows, and a new UI palette (the previous classic palette is still
available). This is still a work in progress.
- The locations of all major config files (statedir, palette file,
cheat file, properties file, etc) are now configurable from the
commandline and within the UI.
- Updates to TIA palette support. Added SECAM support, and removed the
built-in original palette. Standard, z26, and user are still
available.
- Various bugfixes to some debugger commands. The run command no
longer causes a crash, and several others have better error-checking.
- Added more complete cartridge auto-detection for Commavid (CV), 3E,
3F and Activision (FE) formats.
- Removed XStart and Width ROM properties, since the forthcoming TIA
rework wont be using them.
- Reworked internal storage of ROM properties to be faster and take up
less space.
- Added several different ways of stretching the OpenGL image to the
-gl_fsmax argument, for more flexibility.
- Removed OpenGL aspect ratio setting favour of the previously mentioned
video changes. Well see how this goes.
- Removed dirty-rect support from software rendering, since it was actually
sub-optimal in Windows and OSX and defaulted to off in previous versions.
- Added support for gzipped ROMs.
- Re-added pause support.
- Re-added support for Windows 98.
- Removed support for STELLA_BASEDIR environment variable, since each
config file can be now configured separately.
- Removed -fastscbios argument, since it must always be turned on.
- Removed PSP support, since it hasnt been updated in over a year, and
someone else is maintaining another port elsewhere.
- For the Unix/Linux port; fixed make install issues, and changed icon to
PNG format.

Uberyl is Ubuntu + Beryl, and many other programs that makes Linux easy for all, mainly for beginners, but that does not reduce power for the advanced users. He is able to run beryl in a live-CD with Intel, Nvidia & Ati.

The project installs Songbird, Automatix, Envy, Emulators, Xara xtreme, youtranslator, navigator Avant window, apton-CD, ndiskgtk (wireless drivers tools) and many more.