Free powerpc platform emulator software for linux

gnuboy project is a portable multi-platform GPLd GameBoy emulator.
gnuboy emulates the Color GameBoy handheld console in portable C, with interfaces for X11, Linux fbcon and svgalib, SDL, DOS, and Windows, with other ports planned in the future.
Compatibility with ROMs tested is around 99 percent, and all major hardware features except SGB extensions are supported.
With the optional optimized i386 assembly code, gnuboy can run at the full 60 FPS even on Pentium/75s and below.
No special libraries are required to compile, and gnuboy is known to build on many *nix variants.
Main features:
- Full GBZ80 instruction set.
- Scanline-based LCD engine.
- Ten sprites per scanline limit.
- Support for all CGB graphics extensions.
- Sprite DMA, HDMA, and GDMA.
- All four sound channels including digital samples.
- MBC1, MBC2, MBC3 (including clock), and MBC5 mappers.
- Wave pattern memory corruption when sound channel 3 is played.
- Pad, timer, divide counter, and other basic hardware registers.
- CGB double-speed CPU mode.

Jagacy 3270 Emulator is a feature-rich 3270 terminal emulator. It supports SSL, TN3270E, and over thirty languages. The project does not contain the screen-scraping library, and is a cost effective solution for a stand-alone Java 3270 terminal emulator.
The emulator can be configured to help create screen-scraping applications. Developers can also develop their own custom terminal emulators (with automated logon and logoff). Jagacy 3270 screen-scraping is faster, easier to use, and more intuitive than HLLAPI. It excels in creating applications reliably and quickly.
Main features:
- 100% pure Java.
- Feature rich 3270 terminal emulator.
- SSL support.
- Extended TN3270 (TN3270E) support.
- 17 different terminal types (including 132 columns).
- Internationalization support. Over 30 different languages supported.
- Configurable using properties, if desired. No changes necessary when host name or screens change.
- Easily create a custom 3270 terminal emulator.
- Small footprint (less than 150K). Runs efficiently within the Eclipse and NetBeans IDEs.
- Can display the 3270 session in a window while an application is running.
- Includes a full-featured 3270 terminal emulator tailored to developing and debugging applications.
Enhancements:
- Add features/limitations/changes here

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.

Untangle Gateway Platform is a Linux-based network gateway with pluggable modules for network applications like spam blocking, Web filtering, anti-virus, anti-spyware, intrusion prevention, VPN, SSL VPN, firewall, and more.
Enhancements:
- Bugfixes from 5.0.0-beta; this release is stable.

SIMD Cross-platform headers is a cross- platform, cross-compiler, cross CPU C/C++ header collection that aids the creation portable vectorized (SIMD) C/C++ code.
SIMD Cross-platform headerst supports (or partially supports) x86 (MMX/SSE/SSE2) GCC and MSVC, PPC Altivec GCC and CodeWarrior, ARM GCC, and software-emulated SIMD.
NOTE: Code must be 16-byte aligned. Align to 16 when allocating memory.
X86/XSCALE (Intel) vs. PowerPC/MIPS
While the PowerPC and MIPS SIMD instructions take 2 source vectors and a destination vector, the Intel platforms only take a source and destination. Example:
PPC/MIPS can do:
C = A + B
X86 can only do:
A = A + B (or A+=B)
Code written either way will work on the X86, and still be faster than 387 math, but preserving the registers takes significant overhead (Disassemble the test program for an example. The prints preserve, the disassembly test does not.) For the fastest code between systems, write your SIMD math as the X86 expects, manually preserving SIMD variables.
At least GCC for PPC doesnt seem to have any issues figuring out how to deal with a source and destination memory address being the same.
Enhancements:
- Created file with some i386, GCC dialect

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.

Untangle Gateway Platform is a Linux-based network gateway with pluggable modules for network applications like spam blocking, Web filtering, anti-virus, anti-spyware, intrusion prevention, VPN, SSL VPN, firewall, and more.
- Commercial-grade open source alternative to SonicWALL and WatchGuard
- 14 integrated apps - use one or all of them
- Runs on off-the-shelf hardware
Enhancements:
- A package of 5.0.1 as a VMware Virtual Appliance has been released.