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                               FixMfmDevice 1.1
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                          Copyright © 1996 Dave Jones
                              All rights reserved
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                   GiftWare - Please send me **-Anything!-**
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Distribution:
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It is forbidden to include this on a magazine coverdisk without first
writing to me to make sure you include the latest version, and also,
I want a copy of the magazine featuring FixMFMDevice.
No other limitations are implied on this distribution.


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Requirements
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Any Amiga, with CrossDOS.
XfdMaster [Optional]
Reqtools  [Only necessary if XFD is used]


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BackGround:
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Every version of CrossDOS I've seen has a bug in the LibOpen() routine.
It uses the d3 register, but doesn't save/restore it before/after using it.
This program will edit the mfm.device to fix this bug. It changes just two
bytes.

Although this bug is not fatal, it can cause problems, as I found out when I
recently wrote a program which used PC disks, after reading a file, d3 was
trashed, and I couldn't figure why, till I disassembled mfm.device.


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Usage:
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Just run the patch from a shell, and it will rename your old DEVS:mfm.device as
DEVS:mfm.device.old, and create a new debugged file called DEVS:mfm.device
If the file is packed, then it will be depacked if you have the xfd package
installed (Available on Aminet)


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History:
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v1.0: Release date 20-Sep-96
 First version.

v1.1: Release date 03-Nov-96
 BugFix - Removed enforcer hit.

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Future:
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I'm unaware of any other bugs in mfm.device, if I find any I'd fix them!
Maybe I'll add some speed-patches one day.. but I don't think I'd be able
to speed it up much without considerably rewriting it.

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Programmer:
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 Dave Jones
 40,Heol Edward Lewis
 Gelligaer
 Hengoed
 Mid Glam
 Cf82 8ej
 South Wales.

 Email: DJones@CardiffCyberCafe.Co.Uk

I'm a 22 year old hobby programmer, interested in anything Amiga, currently
working as a Data Entry Clerk (Which sucks) Job offers welcome ;^)