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- How to backup Infocom's ZORK III game:
-
- *Insert DOS disk in drive A
-
- A>DISKCOPY A: B: <-- Ignore the errors on tracks 1-3!
- *Place your ZORK III disk in drive A and a blank disk in drive B.
-
- A>
- *Now take out your ZORK III disk and insert your DOS disk in A.
-
- A>DEBUG
- -R CS
- xxxx
- :0000 <-- you enter this
- -R DS
- xxxx
- :0040
- -R IP
- xxxx
- :7C00
- -R ES
- xxxx
- :0000
- -L 0:7C00 0 0 1
- -G =0:7C00 0:7C2A
- -R AX
- xxxx
- :0800
- -G 0:7C63
- -E 800:14E5 B8 08 02
- -E 800:211A 02 08
- -W 800:0000 1 8 18
- -L 0:7C00 0 0 8
- -E 0:7C7C 02 08
- -E 0:7C41 B8 08 02
- -W 0:7C00 1 0 8
- -Q
-
- *Take out your new disk in drive B and write-protect it.
- It is now DISKCOPY-able.
- *Reboot your system - press ALT-CTRL-DEL.
-
-