Archiver - Revision history

Stefan Haubenthal at 13:36, 28 May 2016

2016-05-28T13:36:24Z

← Older revision		Revision as of 13:36, 28 May 2016
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	Barry Boone's utility '''ARCHIVER''' is the common tool to package files on the TI-99 and Geneve systems. Tim Tesch modified it for use with hard disks, in particular by changing the way the source directory is specified (you can provide a complete pathname).		[[Barry Boone]]'s utility '''ARCHIVER''' is the common tool to package files on the TI-99 and Geneve systems. Tim Tesch modified it for use with hard disks, in particular by changing the way the source directory is specified (you can provide a complete pathname).

	Bob's last version was 3.03, a complete rewrite of Version 2. Files are compatible between versions and compressed/uncompressed files are handled transparently.		Bob's last version was 3.03, a complete rewrite of Version 2. Files are compatible between versions and compressed/uncompressed files are handled transparently.

HackMac: add this article to an other category

2016-04-10T08:37:07Z

add this article to an other category

← Older revision		Revision as of 08:37, 10 April 2016
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	The Load FW command is a loader for the [[Funnelweb]] program, and the Filename it looks for is UTIL1		The Load FW command is a loader for the [[Funnelweb]] program, and the Filename it looks for is UTIL1

	[[Category:Software]]		[[Category:Software]] [[Category:File Format]]

Stefan Haubenthal: Category

2015-06-10T14:51:29Z

Stephen Shaw: Major extension to article

2015-01-02T14:41:33Z

Major extension to article

← Older revision		Revision as of 14:41, 2 January 2015
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	Barry Boone's utility '''ARCHIVER''' is the common tool to package files on the TI-99 and Geneve systems. Tim Tesch modified it for use with hard disks, in particular by changing the way the source directory is specified (you can provide a complete pathname).		Barry Boone's utility '''ARCHIVER''' is the common tool to package files on the TI-99 and Geneve systems. Tim Tesch modified it for use with hard disks, in particular by changing the way the source directory is specified (you can provide a complete pathname).

			Bob's last version was 3.03, a complete rewrite of Version 2. Files are compatible between versions and compressed/uncompressed files are handled transparently.

			There is a View Text option.

			Both variants - compressed and uncompressed - share the same data structures. The compressed variant is simply an LZW compression applied to the uncompressed archive file.

			Introduced in Vn 3.03, Archiver now accepts drives 1-Z, for Ramdisk users.

	== Uncompressed archive ==		== Uncompressed archive ==

	Uncompressed archives contain the contents and metadata of a set of files in a single archive file. Uncompressed archives are stored in '''Dis/Fix 128''' format.		Uncompressed archives contain the contents and metadata of a set of files in a single archive file. Uncompressed archives are stored in '''Dis/Fix 128''' format.

			When Uncompressed Archives are created, they are automatically write protected, since most Terminal Programs (modem programs) require that D/F 128 files be write protected either to work, or to transfer at an acceptable speed.

	== Compressed archive ==		== Compressed archive ==
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	Compressed archives are stored in '''Int/Fix 128''' format.		Compressed archives are stored in '''Int/Fix 128''' format.

	Both ~~variants -~~ compressed ~~and uncompressed - share~~ the same ~~data structures. The compressed variant is simply an LZW~~ compression ~~applied~~ to the ~~uncompressed archive~~ file.		There are a very few kinds of files which cannot be compressed (attempting to compress them can actually make them LARGER! Known offenders are GIF pictures and Infocom games. Both of these kind of files are already compressed, in fact, GIF pictures use the same compression technique Archiver III uses! Which brings me to the next point: don't bother trying to compress a file twice... it'll just get larger the second time.

			==Geneve compatability==
			Version 3.0 or 3.01, are very unreliable on [[Geneve]], 3.02 has been "fixed" to be compatible with MDOS.

			==Utilities==
			The Load FW command is a loader for the [[Funnelweb]] program, and the Filename it looks for is UTIL1

Stephen Shaw: moved Archiver format to Archiver: Most likely search term. Article to be added to later. Will create a redirect from the narrow prior article title.

2015-01-02T14:20:31Z

moved Archiver format to Archiver: Most likely search term. Article to be added to later. Will create a redirect from the narrow prior article title.

← Older revision	Revision as of 14:20, 2 January 2015
(No difference)

Mizapf: /* Compressed archive */

2012-12-28T19:42:31Z

Compressed archive

← Older revision		Revision as of 19:42, 28 December 2012
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	The archive file may be compressed to save space on the storage medium. The compression used in ARCHIVER is [http://en.wikipedia.org/wiki/Lempel-Ziv-Welch Lempel-Ziv-Welch], also known as LZW. The implementation uses a variable bit count, starting with 9 bits, then increasing up to 12 bits. When all entries are used up, it restarts with 9 bits.		The archive file may be compressed to save space on the storage medium. The compression used in ARCHIVER is [http://en.wikipedia.org/wiki/Lempel-Ziv-Welch Lempel-Ziv-Welch], also known as LZW. The implementation uses a variable bit count, starting with 9 bits, then increasing up to 12 bits. When all entries are used up, it restarts with 9 bits.

			Compressed archives are stored in '''Int/Fix 128''' format.

			Both variants - compressed and uncompressed - share the same data structures. The compressed variant is simply an LZW compression applied to the uncompressed archive file.

Mizapf: /* Uncompressed archive */

2012-12-28T19:39:48Z

Uncompressed archive

← Older revision		Revision as of 19:39, 28 December 2012
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	== Uncompressed archive ==		== Uncompressed archive ==

	Uncompressed archives contain the contents and metadata of a set of files in a single archive file. Uncompressed archives are stored in '''~~Int~~/Fix 128''' format.		Uncompressed archives contain the contents and metadata of a set of files in a single archive file. Uncompressed archives are stored in '''Dis/Fix 128''' format.

	== Compressed archive ==		== Compressed archive ==

	The archive file may be compressed to save space on the storage medium. The compression used in ARCHIVER is [http://en.wikipedia.org/wiki/Lempel-Ziv-Welch Lempel-Ziv-Welch], also known as LZW. The implementation uses a variable bit count, starting with 9 bits, then increasing up to 12 bits. When all entries are used up, it restarts with 9 bits.		The archive file may be compressed to save space on the storage medium. The compression used in ARCHIVER is [http://en.wikipedia.org/wiki/Lempel-Ziv-Welch Lempel-Ziv-Welch], also known as LZW. The implementation uses a variable bit count, starting with 9 bits, then increasing up to 12 bits. When all entries are used up, it restarts with 9 bits.

Mizapf: Created page with "Barry Boone's utility '''ARCHIVER''' is the common tool to package files on the TI-99 and Geneve systems. Tim Tesch modified it for use with hard disks, in particular by changing..."

2012-12-28T19:37:47Z

Created page with "Barry Boone's utility '''ARCHIVER''' is the common tool to package files on the TI-99 and Geneve systems. Tim Tesch modified it for use with hard disks, in particular by changing..."

New page

Barry Boone's utility '''ARCHIVER''' is the common tool to package files on the TI-99 and Geneve systems. Tim Tesch modified it for use with hard disks, in particular by changing the way the source directory is specified (you can provide a complete pathname).

== Uncompressed archive ==

Uncompressed archives contain the contents and metadata of a set of files in a single archive file. Uncompressed archives are stored in '''Int/Fix 128''' format.

== Compressed archive ==

The archive file may be compressed to save space on the storage medium. The compression used in ARCHIVER is [http://en.wikipedia.org/wiki/Lempel-Ziv-Welch Lempel-Ziv-Welch], also known as LZW. The implementation uses a variable bit count, starting with 9 bits, then increasing up to 12 bits. When all entries are used up, it restarts with 9 bits.

← Older revision		Revision as of 14:51, 10 June 2015
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	==Utilities==		==Utilities==
	The Load FW command is a loader for the [[Funnelweb]] program, and the Filename it looks for is UTIL1		The Load FW command is a loader for the [[Funnelweb]] program, and the Filename it looks for is UTIL1

			[[Category:Software]]