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<title> EgretRom </title>
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<i> <a href="https://www.gryphel.com/index.html">www.gryphel.com</a>/c/<a href="../../index.html">minivmac</a>/<a href="../index.html">extras</a>/egretrom
- <a href="https://www.gryphel.com/c/feedback.html">feedback</a> </i>
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<h2 align=center>
EgretRom
</h2>
<hr>
<p> Download </p>
<blockquote>
<p>
<a href="https://www.gryphel.com/d/minivmac/extras/egretrom/egretrom-1.0.1.zip">egretrom-1.0.1.zip</a>
(60K) a zipped hfs disk image and checksum file.
The disk image can be mounted with Mini vMac.
Includes source code.
<br>
<a href="https://www.gryphel.com/d/minivmac/extras/egretrom/egretrom-1.0.1.sit.zip">egretrom-1.0.1.sit.zip</a>
(48K) The same contents, repackaged as zipped Stuffit archive.
</p>
</blockquote>
<p> EgretRom is a utility to write out to an image file a
copy of the ROM of the Egret microcontroller used to
manage power in some Macintosh models. It was made at the request of
<a href="http://rbelmont.mameworld.info/">Arbee</a>
(AKA <a href="http://retroblast.arcadecontrols.com/articles/belmont.html">R. Belmont</a>),
to assist the <a href="http://www.mess.org/">MESS</a> emulator project. </p>
<p> It was made from Arbee's specification, and he reports that the
"second version works fine and has been used to dump
Egret/Cuda/Caboose ROMs on everything from '030s to G3s".
(I don't have the hardware to test it myself.) </p>
<p> The MESS
"<a href="http://mess.redump.net/mess:driver_info:mac_technical_notes#what_chips_are_in_what_macs">Mac Technical Notes</a>"
document some Macintosh models that contain Egret and Cuda. </p>
<p> To use, just launch the EgretRom application. It
should write out a file named "Egret.ROM" (to the folder containing
the application) and then immediately quit. </p>
<p> On a machine without an Egret microcontroller, EgretRom
may or may not detect that, and give an error message.
(If it doesn't, a crash is likely.) </p>
<p> EgretRom 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 EgretRom set to be the startup
application (in System 6 or earlier, not System 7),
and replacing the finder with the
"<a href="../autoquit/index.html">AutoQuit</a>"
application. Make sure there is
enough free disk space for the ROM image file. </p>
<p> The ROM image files that EgretRom saves are
copyright Apple Computer, and may not be
redistributed. </p>
<p>
Here is the md5 checksum for the download, signed with
<a href="https://www.gryphel.com/c/keys/k5.html">Gryphel Key 5</a>:
</p>
<blockquote>
<pre>
--------- GRY SIGNED TEXT ---------
598aaa555e2be473947fb4afe4526aea egretrom-1.0.1.zip
6def3b825f960ad2da4d465daf1d8f80 egretrom-1.0.1.sit.zip
------- BEGIN GRY SIGNATURE -------
Gry/4Xa8CFcUzxdN/PbWD+HnJGO1gB2h4R4zKWwjnrmzl49GwYoX4rEeRR4LsadK
ddzHDGzGDwzREeHalgjQdtkdwxR4qdRA/0Jzfh0Mh9AT/JOdaj3jcRPvIHdCje9X
5YsZAaGc0eYe0umJl+5++nTvA7Gg4FMA7d24ya+8E8HAjhU1BnmxOZbDqPchCZze
-------- END GRY SIGNATURE --------
</pre>
</blockquote>
<p> <b>new alpha</b> </p>
<blockquote>
<p>
<a href="https://www.gryphel.com/d/minivmac/extras/egretrom/egretrom-1.0.3.zip">egretrom-1.0.3.zip</a>
(60K) a zipped hfs disk image and checksum file.
The disk image can be mounted with Mini vMac.
Includes source code.
<br>
<a href="https://www.gryphel.com/d/minivmac/extras/egretrom/egretrom-1.0.3.sit.zip">egretrom-1.0.3.sit.zip</a>
(48K) The same contents, repackaged as zipped Stuffit archive.
</p>
<pre>
--------- GRY SIGNED TEXT ---------
f92391d72c073fc7f6f45dce1addbe11 egretrom-1.0.3.zip
a80766ed0038e20bcb39d6a016721d61 egretrom-1.0.3.sit.zip
------- BEGIN GRY SIGNATURE -------
Gry/4Xa8CFcUzxdN/FOSqELyZdXcDx5ZJUB6BquRv5/lUklbo5GrzouOsvf/37P/
0MepqiWaS67JBWhHUrEzdOg98d42iZGbxRl1GSnCIUaJUzVCvbBH02yU5rxGsWAj
tIMhMhNQwTBfC4QMsztO4o/gVU
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