LArc - Revision history

Jsummers at 16:20, 24 November 2024

2024-11-24T16:20:25Z

Jsummers: /* Software */

2023-09-01T14:16:33Z

‎Software

Jsummers: /* Software */

2023-03-05T17:47:49Z

‎Software

Jsummers: /* Compression schemes */

2022-04-28T22:17:37Z

‎Compression schemes

Jsummers: /* Software */

2022-04-13T17:50:55Z

‎Software

Jsummers: /* Identification */

2021-12-01T18:29:44Z

‎Identification

Jsummers at 14:04, 17 August 2021

2021-08-17T14:04:44Z

Jsummers at 15:59, 29 April 2021

2021-04-29T15:59:33Z

Jsummers: Splitting this off from LHA

2021-04-25T14:46:44Z

Splitting this off from LHA

New page

{{FormatInfo
|subcat=Archiving
|extensions={{ext|lzs}}
|released=1988
}}
'''LArc''' is a compressed archiver program for DOS. It was developed by Kazuhiko Miki, with Haruhiko Okumura and Ken Masuyama. Its native file format is sometimes called '''LZS'''. It uses generalized [[LHA]] format, and was possibly the originator of it.

See [[LHA]] for more information relevant to LArc format.

== Compression schemes ==
{| class="wikitable"
! ID !! Description and remarks
|-
|<code>-lz2-</code> ||
|-
|<code>-lz3-</code> ||
|-
|<code>-lz4-</code> || Uncompressed
|-
|<code>-lz5-</code> || LZ77/[[LZSS]], 4k window. Almost identical to "SZDD" used in [[MS-DOS installation compression]].
|-
|<code>-lz7-</code> ||
|-
|<code>-lz8-</code> ||
|-
|<code>-lzs-</code> || LZ77/[[LZSS]], 2k window
|}

== Identification ==
One of the listed 5-character LArc compression scheme IDs appears at offset 2.

== Software ==
* [http://cd.textfiles.com/simtel/simtel20/MSDOS/ARCHIVRS/LARC333.EXE LArc v3.33] (1989-02-25)
* [https://github.com/fragglet/lhasa lhasa]
* [http://lha.osdn.jp/ LHa for Unix]

(Wanted: Other versions of LArc.)

@@ Line 35: / Line 35: @@
 == Software ==
 * {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/LARC333.EXE|LArc v3.33-English}} (1989-02-25)
-* LArc v3.33-Japanese: [https://archive.org/details/FMTownsFreeSoftwareCollection1 FM Towns Free Software Collection 1] → FREEWARE.{BIN,CUE} → ms_dos/larc/ (or {{DiscMasterLink|browse/3623/FREEWARE.BIN/ms_dos/larc|at DiscMaster}})
+* LArc v3.33-Japanese: [https://archive.org/details/FMTownsFreeSoftwareCollection1 FM Towns Free Software Collection 1] → FREEWARE.{BIN,CUE} → ms_dos/larc/
 * [https://github.com/fragglet/lhasa lhasa]
 * [http://lha.osdn.jp/ LHa for Unix]

@@ Line 4: / Line 4: @@
 |released=1988
 }}
-'''LArc''' (not to be confused with [[LHA|LHarc]]) is a compressed archiver program for DOS. It was developed by Kazuhiko Miki, with Haruhiko Okumura and Ken Masuyama. Its native file format is sometimes called '''LZS'''. It uses generalized [[LHA]] format, and was possibly the originator of it.
+'''LArc''' (not to be confused with [[LHA|LHarc]]) is a compressed archiver program for DOS. It was developed by Kazuhiko Miki, with Haruhiko Okumura and Ken Masuyama. Its native file format is sometimes called '''LZS'''. It uses generalized [[LHA]] format, and was possibly the originator of it. It was based in part on [[LZSS (Haruhiko Okumura)|Okumura's LZSS software]].
 See [[LHA]] for more information relevant to LArc format.

@@ Line 2: / Line 2: @@
 |subcat=Archiving
 |extensions={{ext|lzs}}
-|released=1988
+|released=≤1989
 }}
 '''LArc''' (not to be confused with [[LHA|LHarc]]) is a compressed archiver program for DOS. It was developed by Kazuhiko Miki, with Haruhiko Okumura and Ken Masuyama. Its native file format is sometimes called '''LZS'''. It uses generalized [[LHA]] format, and was possibly the originator of it. It was based in part on [[LZSS (Haruhiko Okumura)|Okumura's LZSS software]].

@@ Line 18: / Line 18: @@
 |<code>-lz4-</code> || Uncompressed
 |-
-|<code>-lz5-</code> || LZ77/[[LZSS]], 4k window. Almost identical to "SZDD" used in [[MS-DOS installation compression]].
+|<code>-lz5-</code> || LZ77/[[LZSS]], 4k window.
 |-
 |<code>-lz7-</code> ||

@@ Line 29: / Line 29: @@
 == Identification ==
 One of the listed 5-character LArc compression scheme IDs appears at offset 2.
 == Software ==