Mupen64Plus v1.99.1 is released. Mupen64Plus is a N64 emulator and plugins for Linux, Mac OSX, and FreeBSD. Mupen64Plus is a plugin-based N64 emulator for Linux which is capable of accurately playing many games. Included are four MIPS R4300 CPU emulators, with dynamic recompilers for 32-bit x86 and 64-bit amd64 systems, and necessary plugins for audio, graphical rendering (RDP), signal co-processor (RSP), and input. There are 3 OpenGL video plugins included: glN64, RiceVideoLinux, and Glide64.

New 2.0 architecture advantages:
Simplified emulator Core, making it much more portable
Removed all GUI code from plugins, making them simpler and more portable
User interface development is not tied to Core emulator releases
All messages from core/plugins can be filtered and shown in GUI instead of only on console
Video Extension allows Front-end to override some video functions, ie to support embedded render window
Startup in Fullscreen mode, instead of always starting in windowed mode and switching to FS after few seconds
video resolution can be given via command-line parameter
all configuration options for core and plugins are in a single config file, can be configured with a single GUI
dummy plugins are automatically used if plugin loading fails for any reason
core and plugins all use the same conventions for where to put data/config files

Mupen64Plus core:
New feature: cheat code support
New feature: Keyboard shortcuts for Core commands are now user-configurable
New feature: can load/save PJ64 state files
Major code cleanup, refactored build system to separate source and object files
Removed many dependencies to simplify porting to other platforms
Moved all of the SDL event-related stuff into a new source file eventloop.c
Use XDG directory convention for file locations on Unix
bugfix: frame advance feature should advance every frame, instead of every vertical interrupt (every field)
bugfix: allow diagonal hat movements for core joystick commands
bugfix: modified SDL event loop joystick code so that gameshark button press is captured, and joystick commands that are level-triggered instead of edge-triggered (such as fast foward) can be accommodated
bugfix: fixed the outstanding SDL event issues by re-writing the code which handles the joystick-event-driven core commands. Now the axis-based commands use hysteresis and there is a single global event function for determining if the gameshark button is pressed
bugfix: OSD crash after pause-stop-start-pause of emulator
bugfix: Set video width and status, aiDacrate during savestate load
bugfix: in pure interpreter, Dont allow to override r0 register
bugfix #52: PJ64 load state patch from olejl77
bugfix #268: use aligned malloc and mprotect to set executable status for dynarec emitted code
bugfix #51: Floating Point Register data was not correctly converted when switching between 32-bit (MIPS-I) mode and 64-bit (MIPS III). New code more closely emulates behavior of r4300 hardware. Fixes collision problems in Banjo-Tooie
bugfix #272: rounding mode for x86 FPU not being set correctly in interpreter and pure interpreter cores
bugfix: many games need different ScreenUpdateSetting to work properly with Rice Video

Mupen64Plus-audio-sdl v1.99.1 - December 14, 2009
Converted to new Mupen64Plus 2.0 API
Code cleanup to remove non-standard data types
Refactored build system to separate source and object files
bugfix #269: jttl_audio segfaults on exit due to incorrectly ordered shutdown code

Mupen64Plus-input-sdl v1.99.1 - December 14, 2009
New feature: Joystick/Keyboard auto-configuration
New feature: deadzone and peak analog joystick values are now configurable
Converted to new Mupen64Plus 2.0 API
Refactored build system to separate source and object files
Major code cleanup: mouse movement and analog axis code was terrible, removed non-standard data types
Improved debug messages
bugfix: mapping the X/Y analog sticks to keypresses didnt work
bugfix: LeftCtrl-LeftAlt key command when mouse is enabled to now toggles between grabbing and releasing the mouse pointer

Mupen64Plus-rsp-hle v1.99.1 - December 14, 2009
Converted to new Mupen64Plus 2.0 API
Refactored build system to separate source and object files
Refactored all code to remove win32-specific things, unnecessary functions, and clean up

Mupen64Plus-UI-Console Front-End v1.99.1 - December 14, 2009
Brand new Console-based front-end for Mupen64Plus 2.0
New feature: R4300 Core Comparison for debugging
New feature: Cheat code support from command-line

Mupen64Plus-Video-Rice v1.99.1 - December 14, 2009
Converted to new Mupen64Plus 2.0 API
Major code cleanup, removed all non-standard data types
Refactored build system to separate source and object files
added NO_ASM build option
removed some unused configuration parameters
bugfix: handle fullscreen video mode properly: start up in this mode instead of always starting in windowed and needing the core to switch to fullscreen
bugfix #209: setjmp/longjmp fixes in the BMP writer and PNG reader
bugfix: eliminated duplicate ´Found ROM ...´ messages

Download: Mupen 1.99.1 alpha for mac OS X 10.5+ intel
Download: 32-bit Linux binary bundle for Mupen64Plus v1.99.1
Download: 64-bit Linux binary bundle for Mupen64Plus v1.99.1
Source:Here