Here is it: The Model 2 Emulator
supporting some Model 2 and Model 2 A-CRX boards (Daytona anyone?
This version of the emulator includes a preliminary emulation of the Fujitsu MB86234 DSP
present in these boards.
Keep in mind that the emulation is still preliminary, as there is no documentation on this chip, and it has been done
by reverse engineering the binary programs and comparing with the model 2B and 2C programs and the MAME
HLE. I´d like to help Olivier Galibert and Ernesto Corvi for their help in making possible this DSP
Check the include README.TXT for instructions (especially how to set Daytona to Standalone machine as Multiplayer is
not implemented) and known emulation bugs in the games.
--- HISTORY ---
This version includes the (still preliminary) emulation of the Fujitsu MB86234 DSP
present in the original Model 2 and Model 2 A-CRX boards. This means that some of
the games running in these boards are playable now.
The emulation is still preliminary because it has been done by reverse engineering
the complete instruction set of the DSP
and there are still bugs. This has been
possible thanks to the help of Olivier Galibert (that helped me starting writting the
disassembler some years ago) and Ernesto Corvi (that analyzed my disassemblies and
compared against other games and the model1 HLE in mame
I´ll list now the known problems and gliches in the games:
Daytona USA games: when stopping the car, or starting a course from a stop (advanced and
expert) the screen says REVERSE.
Sega Rally: Automatic transmission doesn´t work, only manual.
Original Model 2 games have wrong colours in the 3D textures and wrong lighting.
To play Daytona USA, when the network check screen appears, press F2 to enter test mode
and in Game Settings set the game mode to Standalone.
This package includes the single threaded and the multithreaded version. Use the
multithreaded version in systems with more than a cpu, dual core, core duo, etc...
There are several fixes in the syncronization code that should reduce the crashes
in the emulator.