MEKA v0.80 Alpha (2015/04/01) is released. MEKA is a multi-machine emulator for MS-DOS, MS-Windows and maybe GNU/Linux. The following machines are supported by MEKA:

* Sega Game 1000 (SG-1000)
* Sega Computer 3000 (SC-3000)
* Sega Super Control Station (SF-7000)
* Sega Mark III (+ FM Unit)
* Sega Master System (SMS)
* Sega Game Gear (GG)
* ColecoVision (COLECO)
* Othello Multivision (OMV)

MEKA v0.80 Alpha (2015/04/01) Changelog:
- Moved to github https://github.com/ocornut/meka
- Updated checksum and compatibility lists.
- Z80: Fixed emulation of R register (fixes 'Bubble Bobble', 'Hong Kil Dong' among others), fixed HALT timing, fixed CPDR [Calindro]
- VDP: Writing to palette sets the read buffer. Fixes test 10 of FluBBA's VDP Tester.
- VDP: Setting address via palette write preserve upper address bits. Fixes tests #4 and #15 of FluBBA VDP Tester.
- I/O: IO range 0x40..0x7F mirrors h-counter and v-count.
- Patch for BIOS 2.0..
- MSVC project cleanup, removed libpng binaries and unused files.

Download: MEKA v0.80 Alpha (2015/04/01)
Source:Here