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Path: utzoo!mnetor!seismo!rutgers!princeton!allegra!ulysses!faline!thumper!sdh
From: sdh@thumper.UUCP
Newsgroups: comp.sys.mac
Subject: Re: ChipWits
Message-ID: <338@thumper.UUCP>
Date: Tue, 20-Jan-87 11:03:52 EST
Article-I.D.: thumper.338
Posted: Tue Jan 20 11:03:52 1987
Date-Received: Sat, 24-Jan-87 12:42:35 EST
References: <897@uwmacc.UUCP> <490@entropy.ms.washington.edu> <1141@Shasta.STANFORD.EDU>
Organization: Bell Communications Research Inc., Morristown, NJ
Lines: 44

> > > Here's another reason not to get a ROM upgrade:  ChipWits doesn't
> > > work with the new ROM.  Does anyone have a patch to make it work,
> > > or is it hopeless?
> > 
> > Registered owners of ChipWits may return their original disk to
> > Brain Power and receive a version that runs on the Mac+.  I did,
> > it works.
> 
>   I got a letter indicating that I could get a version of ChipWits which
> worked on the Mac+. Unfortunately the cost of doing so was $15 or so.
> Where are those patches on the net when we need them?

The question I have is, are you sure that it is just a case of new ROMs
or is it a case of entire machine.  One of the more common casues of
incompatability is that the program may have the locations of the screen
buffer and alternate screen buffer hard coded into it. This is bad, but not
too hard to repair.   The procedure should then be the same for pathcing
megaroids.  If the problem is not because of hard coded addresses but
"illegal" access to the ROMs, you're up sh*t creek, and will have to go the
'official' route.

In case you've forgotten, here are the patches for megaroids and that ilk:


in FEdit go to the resource fork of the program and do the following:

    Find all:       0007 fd00
    Change to:      000f fd00   ( this is the sound buffer )

    Find all:       0007 a700
    Change to:      000f a700   ( this is the main screen buffer )

    Find all:       0007 2700
    Change to:      000f 2700   ( this is the alternate screen buffer )

    Find:           0007 7c80
    Change to:      000f 7c80   ( used as a disk IO buffer! )


and don't forget to work on a copy of the application and not the original,
lest you goof, or it doesn't work.

Retief of the CDT
bellcore!sdh