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>From: Cameron Kaiser <ckaiser@floodgap.com>
>Reply-to: Cameron Kaiser <ckaiser@floodgap.com>
>X-Original-Posting-Date: 10 Aug 2003

This is Pasi's GunZip.c64, which can understand ZIP archives and .gz
files, and decompress them on your C64 natively.

This version supports standard I/O and has burst support for 64s
appropriately modified. If you want to try the 64 version that can
decompress .d64.gz to single disks and has a built-in 1541/1571
speeder, or to try the C128 and Plus/4 versions, go to the official
page at

http://www.cs.tut.fi/~albert/Dev/gunzip/

See this page for documentation as well. Here are basic instructions
for dissolving .zip and .gz files (see his site for D64 usage):

   First the program asks for an input drive. Press 8 or 9 for drives 8
   and 9, respectively. Use 0-7 for drives 10-17.
   
   Then give the input filename or an empty name to select a file from
   the directory listing.
   
   Output drive is asked next. 8-17 can be used.
   If the input drive is the same as the output drive, and a 1541 format
   disk is detected, you can next select whether you want to dissolve a 
   disk image or files. In disk image mode no other selections are       
   possible. [Here, we will select files.]
     
   Unless one-drive disk image mode was selected, several selections are 
   possible for each file in a packet.
     * Yes - decompress this file
     * No - skip this file
     * All - decompress this file and all following files
     * Edit - edit the destination filename
   
   If you want to create SEQ files, you can do this by editing the
   filename to include ",s,w", e.g. "file.doc,s,w". The same procedure
   can be used for USR files.
   
   The border is flashed when reading or writing data. The screen is     
   blanked during writes.

   The file size is displayed in hexadecimal after a successful
   decompression. If the final output size does not match with the size
   indicated in the packet, an error is displayed. Also, if the CRC32
   does not match, both the expected and the resulted CRC are displayed.

-- Cameron Kaiser