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the Gryphel Project

The goal of the Gryphel Project is to help preserve software made for early Macintosh computers, the computers that Apple sold from 1984 to 1996 based upon Motorola’s 680x0 microprocessors.

Mini vMac

The center of this project - a family of free and open source emulators that allow such software to be used on modern computers


The rest of this project - software for the early Macintosh, links to alternatives to Mini vMac, links to related forums, lists of books, and more.

Latest News :

January 14, 2021 - permanent link

The ua608d command line tool is now also compiled for Apple Silicon.

January 12, 2021 - permanent link

PCalc has been added to the software hosted by the Gryphel Project. (As part of testing the Mini vMac 37.02 beta.)

December 20, 2020 - permanent link

Today’s Mini vMac 37.02 beta should fix sound not working on Apple Silicon, as reported by Patrick. Some of the deprecation warnings by the compiler should have been looked at more closely. A patch by Dominik Reichardt to the library SDL could be adapted to Mini vMac.

Also for this beta, I obtained a new Apple signing certificate. They expire after a while, so I think it best to get a new one for each new branch of Mini vMac. But not change the signing certificate for the previous branch of Mini vMac, since the idea is that the Variations Service will always give the exact same results given the same options. Compiling with different signing certificates for Mini vMac 36 and 37 turned out to be tricky, Apple signing tools are very finicky.

December 13, 2020 - permanent link

Today’s Mini vMac 37.01 is the first beta of the 37.xx branch. The Changes page lists differences from current stable 36.04 version. (The main change in the source code from the last Development snapshot is just the version number. The other change is suppressing some deprecation warning messages when compiling the Apple Silicon version. I need to replace usage of OpenGL sometime, but not now.)

Moving to beta means no further changes except bug fixes in this branch. It is happening now so as to have a stable version supporting Apple Silicon as soon as possible.

Previous news - News Archive


Thanks to Donald Shepherd, Chris Hanson, Stephen Barbieri, Benjamin Yackley, Samuel Davidoff, Chad Stanke, Colin Ng, Andrew Macfarlane, John Miller, Mark Smith, Todd Katz, Steve Torello, Byron Formwalt, Katherine Palacios, Dallin Pincock, David Goodson, Jay Petersen, James Weiner, Roger Clark, Keith Palmer, Andy McConn, Felix Orsini, Elliot Nunn, Herbert Wetli, Pacific Alarms, Olivier SIGG, Sylvain Pellet, Yvan BARTHELEMY, Tim Johnson, Richard McConnell, Dimitri Boone, Andrew Richards, Steven Hirsch, Ton van der Liet, Vincent Penichou, Reinhard Zielinski, Pierre Beck, Klaus Ritter, Christopher Courtney, Robert Hoppe, Jerome Acks, Martin Nobel, Nathan Lee, Jose Manuel Mendez Magan, Marie Friis, Jason Galarneau, Cedric Tremblay, Deborah Carne, Michael Sprague, Andrew Y., Attila Fehervari, Jesse Cochran, Manu Heikkila, Parinya Tantasin, Kamil Korolczuk, Jan Baumgartner, Shearwood Frames, Carl Lewis, Richard Cini, Chris Hanson, Michael Dennis, Jim Dickison, Glenn Petrie, Nicolas Geissler, Padawer, Chris Hanson, Anthony Easa, John Schilling, Holger Burmester, Michael Grundmann, Conscious Shell, Guillermo Grana Gomez, Luke Anderson, Matthew McFarlane, Chris Hanson, Jason Buss, Toby Ord, Jadan Sloan, Codey Vargas, Wesley Wilkinson, Peter Krstanovski, Xiangtian Wei, James Licata, Ian Murray, David Templeton, Benjamin Watson, Galen Tackett, Michael Longval, Jeff Halter, Mark Brethen, Mohamed El-Rouby, Deniz Ersu, Tam Chi Hang Keith, Jonathan Badger, Casey Mulvihill, Galen Hunt, Cloud Propeller, Inc., Carly Marshiano, Chris Rutter, Ryan Fialcowitz, Anonymous, Dean Brissinger, Anonymous, Chaled Schmidt, twocargar Multimedia, R D Bridges, Berend Vosmer, 0xroy, keith struan, Steve Crutchfield, Mario Cavigli, Tak Chung Lung, Ben Lacara, Ignacio Arango Valderrama, robert lloyd, James Adams, Thomas Teixeira, David Steedman, Alessandro Bruno, Brian Martin, Jeremy Landry, Jacob Ochs, Gianluca Abbiati, Brielle Harrison, G2K Argentina S.A., Piotr Jaczewski, david frydman, Maxim Prochshenko, Mason Shell, and Josh Young for sponsoring 184 days of health insurance.

Thanks to Yu Tsz Lui, Edzard Ceadda Stanislaus III, Arnaud Abbati, Scrutinize My System, and John Leake for sponsoring 15 months of web hosting for the Gryphel project.

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