SMS Plus is a Sega Master System and Sega Game Gear emulator for the Macintosh. It will run on both 68K and PowerPC Macs, provided they have the Appearance Manager Extension (v1.0.1 or later) installed. The PowerPC version in addition requires MacOS 8.5 or later.
SMS Plus is free software. The source code to the original version (DOS/PSX) is available to all under the terms of the GNU General Public License. My agreement with the original author allows me to keep the Macintosh sources to myself at this time. However, all changes I make to the core code have been (and will continue to be) submitted back into the publically available source code.
Usage
Using this program should be mostly self-explanatory.
You must have original Sega Master System or Sega Game Gear ROMs on your computer to use this Emulator. Do not ask me to send you ROM files. Simply select your chosen ROM with the application and it should run automatically.
The program attempts to auto-detect between Master System and Game Gear ROMs. In the event it gets it wrong, simply rename the ROM with a ".sms" or ".gg" extension and then open it again. The file type and creator will be set accordingly so you can remove the extension afterwards.
The emulator supports working save state support as of v0.9.3 so you can save your game at any point.
SMS/GG ROM Info Support
This program contains automatic screenshot code for use with SMS/GG ROM Info v1.5b3 or later. To use, simply place a folder named "ROMs" in the same folder as SMS Plus and run it, while holding down the option key. It will generate a folder named "Screenshots" which can be copied into the SMS/GG ROM Info folder. (Note that this code is preliminary - and that the screenshot process can take some time).
For more information on SMS/GG ROM Info, take a look at http://www.bannister.org/software/.
Version History
v0.9.3 - 7th July 2000
- In sync with the latest DOS version; notable changes include Stereo sound for Game Gear emulation (PowerPC version only), working saved state support, and sound logging. Note that no tool exists for playing back the sound logs at this time; hopefully I'll get a chance to release something soon.
v0.9.2 - 10th June 2000
- In sync with the latest version on the DOS side. Notable change is YM2413 sound emulation. The games that use this are Wonderboy in Monster Land, Afterburner, Kenseiden, Spell Caster, Thunder Blade, and Captain Silver. This can be turned off in the preferences if you prefer the normal SMS sound.
- Preliminary save state support has been added. NOTE THAT THIS DOES NOT WORK CORRECTLY IN ALL CASES YET. It should be fixed up in the next release.
- Preliminary automatic screenshot code for SMS/GG ROM Info v1.5b3 or later.
v0.9.1 - 29th May 2000
- Fixes a stupid bug which caused SRAM not to be saved when the emulator was quit. (In fact it was saved, but the emulator didn't load it again properly when you restarted it. Oops!)
v0.9 - 25th May 2000
- Initial release. Please let me know if you find any problems with this build.
Contacts
Original version:
Charles MacDonald
E-mail: cgfm2@hooked.net
WWW: http://www.emucamp.com/cgfm2/
Macintosh port:
Richard Bannister
E-mail: richard@bannister.org
WWW: http://www.bannister.org/
Thanks
The Z80 CPU emulator and SN76489 sound chip emulation are taken from the MAME project, and terms of their use are covered under the MAME license. (http://www.mame.net/).
This program uses the AsgardESS library by Aaron Giles for sound generation.
Finally, thanks to PB1400c for the icon set. Much appreciated!
