MESS v0.132u2 SVN r5095 is released.MESS is a free emulator which emulates a large variety of different systems.

MESS SVN Changelog:
r5090
Added TMS0980 cpu core.
Added skeleton for 'Stop the Thief'.
r5091
[BW12] Fixed system names.
r5092
Added default monochrome amber and green palettes.
r5093
[FM77AV] Fixed F-BASIC, added joystick ports (untested) and NMI mask register.
r5094
It's "Stop Thief", see
r5095
[FM77AV] Hooked up YM2203 more or less correctly, corrected joystick ports, got around VRAM access flag when VRAM is banked to the main CPU.

Download: MESS v0.132u2 SVN r5095
Source:Here