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SlotRom *Alpha*


slotrom-1.0.4.zip (66K) a zipped hfs disk image and checksum file. The disk image can be mounted with Mini vMac. Includes source code.
slotrom-1.0.4.sit.zip (53K) The same contents, repackaged as zipped Stuffit archive.

SlotRom is a utility to write out to an image file the declaration ROM of each Nubus Card in some Macintosh models. It was made at the request of Arbee (AKA R. Belmont), to assist the MESS emulator project, and debugged in collaboration with him.

It is still in development. This alpha version writes out debugging information to a file named "dbglog".

To use, just launch the SlotRom application. It should write out a file for each NuBus card named such as "Slot9.ROM" (to the folder containing the application) and then immediately quit.

SlotRom can be used even on a machine without a working keyboard, mouse, and/or screen. This can be done by preparing a floppy disk with SlotRom set to be the startup application (in System 6 or earlier, not System 7), and replacing the finder with the "AutoQuit" application. Make sure there is enough free disk space for the ROM image file.

The ROM image files that SlotRom saves are copyright Apple Computer, and may not be redistributed.

Here is the md5 checksum for the download:


85bd18946512c165c342842f7ed886e6 slotrom-1.0.4.zip
2427ecbc0a443cffcb86a01fc2c1def7 slotrom-1.0.4.sit.zip

Version: 2.6.3ia
Charset: noconv


See the Compiling page for instructions on compiling SlotRom from the source code.

You can redistribute SlotRom and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. See the included file COPYING.

SlotRom is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the license for more details.


April 30, 2015 version 1.0.4 - increase preferred memory allocation from 128K to 2M, due to a bug report.

December 1, 2011 version 1.0.0 - initial release.


If you find SlotRom useful, please consider helping the Gryphel Project, of which it is a part.

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www.gryphel.com/c/minivmac/extras/slotrom - feedback
copyright (c) 2011-2015 Paul C. Pratt - last update 4/30/2015