Difference between revisions of "ARC"

Latest revision as of 14:42, 17 December 2015

This page documents the format of ARC.

Overview[edit]

ARC files are compressed files.

Found in manual files compressed with LZ-10

(more compression methods might be available).

@@ Line 4: / Line 4: @@
 == Overview ==
-ARC files are archives. Containers of files compressed with LZ-10 (more compression methods might be available).
+ARC files are compressed files.
-This is very similiar to NARC (the DS archives).
+Found in [[BCMA|manual files]] compressed with LZ-10
-== ARC header ==
+(more compression methods might be available).
-{| class="wikitable" border="1"
-!  Offset !!  Size !! Type !!  Description
-|-
-|  0x000 || 4 || char[4] || Magic Number 'darc'
-|-
-|  0x004 || 2 || uint16 || Endianess (=0xFFFE: Little)
-|-
-|  0x006 || 2 || uint16 || Header's length
-|-
-|  0x008 || 4 || uint32 || Unknown (= 0x01000000 ?)
-|-
-|  0x00C || 4 || uint32 || File's length
-|-
-|  0x010 || 4 || uint32 || [[ARC#File_table|File table]] offset (from the beginning of the file)
-|-
-|  0x014 || 4 || uint32 || [[ARC#File_table|File table]] length
-|-
-|  0x018 || 4 || uint32 || [[ARC#Files_data|Files data]] offset
-|}
-=== File table ===
-The file table starts at 0x01C.
-Each file struct consists of 3 uint32:
-{| class="wikitable" border="1"
-!  Offset !!  Size !! Type !!  Description
-|-
-|  0x00C || 4 || uint32 || Compressed file name offset (from the end of the table, padded to 0x10)
-if (MSB is high) then this is a folder (i.e. first two nodes 'null' & '.')
-|-
-|  0x004 || 4 || uint32 || Compressed file offset
-|-
-|  0x008 || 4 || uint32 || Compressed file length
-|}
-  * First two nodes in the file table are ‘null’ and ‘.’ both have compressed file length of 7.
-=== Files data ===
-  * Each file is compressed using LZ-10. (Starts with 0x10 and followed by uint24 of the uncompressed file size).
-  * Each file's end is padded to 0x10 besides the last one which ends with EOF.

Difference between revisions of "ARC"

Latest revision as of 14:42, 17 December 2015

Overview[edit]

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