View source for Pu-crunch

{{FormatInfo
|formattype=electronic
|subcat=Compression
|subcat2=Executable compression
|released=1997
}}
'''Pu-crunch''' (also written '''Pucrunch''') is a compression utility that creates self-decompressing data objects for use on the Commodore 64. It was developed by Pasi Ojala.

The documentation is not very clear about what it does. It looks a lot like an [[executable compression]] utility (bearing in mind that the C64 doesn't have the clearest distinction between executable and non-executable files), though it may have other uses.

Only the decompressor runs on the C64. The compression utility runs on various other platforms, usually including DOS.

== Identification ==
Undetermined. It shouldn't be too hard to identify the compressed files, but there are different versions and options to account for, and there may be other similar formats that could be mistaken for it.

== Software ==
Pu-crunch:
* [{{SACFTPURL|pack|pucrunch.zip}} pucrunch.zip] - Pucrunch rev. 4.5.1997 (1997-05-04)
* {{DiscMasterLink|browse/12645/0_2014.05.arnold.c64.org.tar/arnold.c64.org/pub/utils/packers+crunchers/PU_Crunch.zip|PU_Crunch.zip}} -  Pucrunch 1.3 (1997-09-18)
* {{DiscMasterLink|browse/12646/2014.05.c64.rulez.org.tar/c64.rulez.org/pub/plus4/Tools/PC/Pucrunch_X86_Old.zip|Pucrunch_X86_Old.zip}} - Unknown version, DOS
* {{DiscMasterLink|browse/12646/2014.05.c64.rulez.org.tar/c64.rulez.org/pub/plus4/Tools/PC/Pucrunch_X86.zip|Pucrunch_X86.zip}} - Unknown version, Win32
* [{{DiscMasterURL|browse/19793/2015.02.ftp.barnyard.co.uk.tar/ftp.barnyard.co.uk/ftp.nvg.ntnu.no/pub/cpc/utils/cpc/pucrunch.zip}}] - Apparently an Amstrad CPC port

Other:
* {{DiscMasterLink|browse/12646/2014.05.c64.rulez.org.tar/c64.rulez.org/pub/c64/IDE64/Tools/OS/dload_src_20110325.zip/dload/demo/decrunch_pucrunch|decrunch_pucrunch}}
* {{DiscMasterLink|browse/12646/2014.05.c64.rulez.org.tar/c64.rulez.org/pub/c64/IDE64/Tools/OS/dload_src_20110325.zip/dload/demo/decrunch_pucrunch_link|decrunch_pucrunch_link}}

[[Category:Commodore computers]]
[[Category:Executable envelopes]]