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2020-03-14 19:28:01 +00:00
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title> EgretRom </title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="canonical" href="index.html"> </head> <body> <div> <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> </div> <hr> <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