Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!wuarchive!udel!rochester!uhura.cc.rochester.edu!ee.rochester.edu!seah From: seah@ee.rochester.edu (David Seah) Newsgroups: comp.sys.apple2 Subject: Re: Some observations Message-ID: <1990Nov16.160414.10965@ee.rochester.edu> Date: 16 Nov 90 16:04:14 GMT References: <2652@ttardis.UUCP> Reply-To: seah@ee.rochester.edu (David Seah) Organization: University of Rochester Department of Electrical Engineering Lines: 17 In article <2652@ttardis.UUCP> rlw@ttardis.UUCP (Ron Wilson) writes: >For the IIgs, however, there is disk based copy of the core routines of the >IIgs ROMs - only the Toolbox routines. Therefore a would be clone maker >would have to either license the ROMs, leave it to the customer to aquire >a set of the ROMs, or implement enough of the ROMs from scratch to satisisfy >GS/OS's needs (one of those needs is to match several dozen checksums GS/OS >computes over various areas of the ROM - a very nearly impossible requirement) Just a simple question about the checksums...is this an anti-clone precaution or the way that GS/OS determines what revision ROM you have? Neither? Both my rationalizations seem unlikely. -- Dave Seah | Omnidyne Systems-M | INET: seah@ee.rochester.edu | | "User-Friendly Killing Machines" | America Online: AFC DaveS | ^..^ +-----------------------------------------------------------------+