![]() ![]() Thereis code in the ROM to do this when the Macintosh Plus boots,but since Mini vMac patches the ROM to replace the disk driver,it also patches the ROM to disable the checksum verification.So Mini vMac does the check itself, before patching the ROM,and gives a warning message if the checksum is incorrect. Mini vMac will verify the checksum of the ROM on launch. In OS X itchecks in "/Users//Library/Preferences/Gryphel/mnvm_rom/",and then also in "/Library/Application Support/Gryphel/mnvm_rom/".In Windows 7 and Vista, "C:\Users\\AppData\Roaming\Gryphel\mnvm_rom\".In Windows XP, "C:\Documents and Settings\\Application Data\Gryphel\mnvm_rom\".In Windows 98, "C:\WINDOWS\Application Data\Gryphel\mnvm_rom\".In the X Versions, "~/.gryphel/mnvm_rom".And in Macintosh Classic "System Folder:Preferences:Gryphel:mnvm_rom".The "mnvm_rom" folder may be an aliasto where ever you keep your ROM collection. If Mini vMac doesn't find theROM image in the locations described above, it willalso look in a specific central location. Or, if there is an argument ofthe form “-d ”, MinivMac looks for the ROM image in. In the X version, if the folder containing the application can not bedetermined, Mini vMac looks for the ROM image file in the current directory.For example, finding the application directory is not implementedin OpenBSD and Minix.Īlso in the X version, if an argument of the form“-r ” is used on the command line,that is used instead of the application directoryor current directory. Actually, the file is really named“” internally, but what you see is “vMac.ROM”.)And in the X versions you use a symlink, or "symbolic link".Īn exception to the above is that in the Mac OS X version,if you create a folder called “mnvm_dat”inside the “Contents” folder within the application bundle(control click on the application and choose “Show Package Contents”),then Mini vMac will look for the “vMac.ROM” file, and the disk1.dsk, disk2.dsk, etc files,within the “mnvm_dat” folder.This allows you to make a self contained Mac OS X application thatruns an application for the Mac Plus (especially when used with the“ AutoQuit”software.) (It must be “vMac.ROM”,not “Shortcut to vMac.ROM”. The ROM image file may also be placed elsewhere, with an alias(named “vMac.ROM”) to it placed in Mini vMac’s folder."Alias" is the term used for Macintosh. Once you have told Mini vMacwhere the ROM image is, booting will resume.īefore giving up and asking you where the ROM image file is,the first location Mini vMac will look for it is in the foldercontaining the MinivMac application, with the name “vMac.ROM”. Or, in the Macintosh or Windowsversions, you can choose the “Open Disk Image.” commandfrom the “File” menu,or the ‘O’ command from the Control Mode to bringup the bring up the standard dialog. You can drag the icon of the file ontoto the Mini vMac window. If it does not find the ROM image, it will waitfor you to tell it where it is. When Mini vMac launches, it will look for a ROM image file in a numberof possible locations. If you don’t have a Macintosh Plus,you could check the“ Where to buy an old Macintosh”page. So to legally use Mini vMac, you need toown a real Macintosh Plus. Note thatthe ROM image file is copyright Apple Computer, and may notbe redistributed. A program such as“ CopyRoms”,when run on a real Macintosh Plus, will savethis information to a file, which can then be transferredto the computer on which you want to run Mini vMac. If you find Mini vMac useful, please consider helping the Gryphel Project,of which it is a part.The ROM (“Read Only Memory”) contains information needed forthe Macintosh Plus to function, and the emulation of theMacintosh Plus also needs this information. I provide versions of Mini vMac compiled for various platforms.There are also ports by other peopleto additional platforms. Or, the Variations Service can compile it for you in seconds: You can compile variations yourself, followinginstructions in the Building Mini vMacpage, using the source: There are many other possible variations, emulating other Macintoshmodels, other screen sizes, using other languages for the userinterface, and much more. ![]() Download Macintosh 128K VariationsĮmulate the original Macintosh, using the “-m 128K” build option. The most popular nonstandard variation, using the “-m II” build option. Download Standard Variationsįor emulating a Macintosh Plus, with an English user interface, for various platforms. Downloads may also be available for alpha,beta, and old branches of Mini vMac.
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