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likely detect a checksum error when
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verifying or extracting the archive.
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ARC handles relative files. These
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babies are difficult enough just to
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copy let alone transfer them over the
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phone!
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ARC also supports a number of useful
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commands for viewing directories,
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moving files between drives, viewing
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the contents of files, renaming files,
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and editing simple text files. For more
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details, you'll have to read the
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documentation for ARC which is quite
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complete.
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First of all there are several ARCs.
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ARCXYZ.4 is for a standard C-64.
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ARCXYZ.8 is for a C-64 equipped with
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a BI-80 eighty column video
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adaptor.
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XYZ is the version number. The higher
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the number, the more up to date the
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program. Archives are downward
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compatible. This means that any ARC
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program will be able to handle any
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archive created by any other ARC
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program provided that its version
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number is equal to or higher than the
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one that created the archive.
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Note also that archives created on
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MS/PC-DOS machines are of a different
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format than Commodore archives. At
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present ARC can only view the directory
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of an MS-DOS archive but thats all. We
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should be able to expand on this in the
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future.
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When you first run ARC, all you get
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is a brief message and you're back at
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the READY prompt.
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ARC is written as a wedge. It adds a
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number of commands to the basic
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interpreter, one of which is ARC. We'll
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just briefly summarize some of the
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commands you will need to know to get
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started using ARC. For more details
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read the complete documentation
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provided elsewhere on this system.
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1) DOS WEDGE.
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This should be familiar. Syntax is
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the same as used in "DOS 5.1", SYSRES,
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or whatever other wedge you use.
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>$0 - view directory
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>i0 - initialize drive 0
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And so on and so forth...
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2) DISK DRIVES
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ARC refers to disk drives by letter,
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not number. It takes a bit of getting
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used to but its more accurate and
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convenient once you're used to it. Thus
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A: is unit 8 drive 0, B: is unit 8
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drive 1, C: is unit 9 drive 0 and so on
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up to H: which is unit 11 drive 1.
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Thus:
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LOAD"C:ARC220.4"
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Could be used in place of:
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LOAD"0:ARC220.4",9
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If you do not specify a drive
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letter in a filename, then ARC will
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assume you meant the default drive.
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(normally A:) You set the default drive
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simply by typing its letter followed by
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a colon.
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C: <return>
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Sets the default drive to unit 9
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drive 0. All wedge commands (>$ etc.)
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and filenames will default to this
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drive. If you just typed the above,
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then:
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