MESS Git (2015/01/27) is compiled. MESS(Multi Emulator Super System) is an open source emulator which emulates a large variety of different systems. MESS is a source-available project which documents the hardware for a wide variety of (mostly vintage) computers, video game consoles, and calculators through software emulation, as MAME does for arcade games. As a nice side effect to this documentation, MESS allows software and games for these hardware platforms to be run on modern PCs.

MESS Git Changelog:
* (MESS) gamegear.xml: Fixed some unknown publishers and years [Logan B]
out of whatsnew: also, marked as supported Ecco the Dolphin thanks to Enik's indications.
* (MESS) sms/gamegear: misc improvements [Enik Land]
- Renamed the gear2gear port to EXT port, after reading the references
in the official GG documents
- Invert Y1 pin signal bits: now high is 1 and low is 0;
- More complete Y1 behavior: goes low only for transparent pixels;
- Fix color of column 0 when it doesn't completely entered in the active display;
- Improve behavior of sprite overflow, to not be flagged when VINT is active.
out of whatsnew: the new Y1 pin behavior of the SMS VDP is based on Charles' findings and TMS9918 manual.

Download: MESS Git (2015/01/27) x86
Download: MESS Git (2015/01/27) x64
Source: Here