hpcalc.org - HP 49/50 Archive

HP 49/50 Compression Programs

The first size listed is the downloaded file size and the second size listed is the size on the calculator.

There are 15 files totaling 159KB in this category.

BZ2 2010   (details) 49/50 48 ENG   35KB/1KB
This is the successor to BZ from Mika Heiskanen, compressing more and faster than its predecessor, while achieving 100% compatibility. BZ2 typically compresses 40-100% faster than BZ and decompresses ~50% faster, while at the same time seeing the same or better compression. It also uses less memory. Multiple versions are included, including one optimized for speed while achieving the same compression ratio as BZ, and another optimized for compression, while still performing better than BZ.
By Yann Collet. 2010/09/12

BZ49 1.2   (details) 49/50 ENG   9KB/2KB
ScreenshotThe best compression program for the HP 48, now available for the HP 49.
By Mika Heiskanen, Christoph Gießelink, and Wolfgang Rautenberg. 2000/09/09

BzComp49 1.1   (details) 49/50 ENG ESP   4KB/2KB
ScreenshotFront end for BZ49 which makes it easy to create self-extracting objects and auto-extracting strings. Based on Mika Heiskanen's HP 48 program, which was ported to the 49 by Christoph Giesselink and others.
By Mika Heiskanen, Alvaro A. Vanegas P (avp98), Christoph Gießelink and others. 2001/03/24

BZLIB 1.0   (details) 49/50 48 ENG   24KB/2KB
Library version of BZ compressor. Make it easier to use the best compressor for the HP 48/49.
By Ricardo Blasco Serrano and others. 2001/12/02

BZMAN 4.2004   (details) 49/50 ENG   20KB/2KB
A small but complete one-page BZ-manager. Enables you to hide BZ-strings in self-decompressing code objects. Allows compressing a whole directory with all its subdirectories, etc.
By Wolfgang Rautenberg. 2006/05/27

BZU   (details) 49/50 ENG   2KB/1KB
Front end for the 49's internal aBZU entry point for decompressing BZ49 strings that's under 100 bytes.
By Werner Huysegoms. 2000/01/12

Compress 2.0   (details) 49/50 ENG   5KB/2KB
Redundance Fighter compression utility.
By Lutz Vieweg and Laurent Mas (hpsam). 2000/01/05

Crypto-comp   (details) 49/50 ENG   5KB/3KB
ScreenshotEncryption and compression library, originally by Arthur Patrouchev, ported to the 49 series by Yoann Désir.
By Arthur Patrouchev and Yoann Désir. 2007/09/25

LZD 0.4c   (details) 49/50 48 ENG   21KB/1KB
ScreenshotLZD is a new compression program specifically developed to achieve very high compression and decompression speed. It's typically 3 times faster than BZ and uses less memory, while often providing slightly better compression. Although it is fast, LZD provides very good compression ratio, especially on small and complex objects (e.g. games). For even more speed, a compatible derivative named FastLZD is also provided.
By Yann Collet. 2009/11/01

ScanCompress 1.0   (details) 49/50 ENG ESP   3KB/2KB
ScreenshotThis program reviews the compressed archives of your system. Made in System RPL.
By Alvaro A. Vanegas P (avp98). 2002/06/30

Stacker4x 1.2   (details) 49/50 48 ENG   9KB/2KB
ScreenshotStacker4x compresses and decompresses on the fly all data handled by the user, so that the user can enjoy the benefits of compression without thinking about it. Everything is fully automated and once the library is installed, it will activate itself and intercept calls to STO and RCL. Compression is provided by FastLZD, and it is very fast (5x-10x faster than BZ), to the point of being hardly noticeable for most objects.
By Yann Collet and Bruno Wyttenbach (stfox). 2009/11/01

String Zip 2001 0.2   (details) 49/50 FRA   2KB/2KB
String compressor/decompressor averaging a 52% compression ratio.
By Gregory Thomas. 2001/08/19

TNT Tool 49 1.1   (details) 49/50 ESP   5KB/10KB
ScreenshotTool that when being combined with TNT, does compression of several archives, something efficient and fast.
By Michael Ruiz. 2002/12/29

TNT-Packer 1.11   (details) 49/50 ENG   9KB/4KB
ScreenshotEasy-to-use, but not completely stable, file compressor. This almost always achieves a better compression ratio than BZ, although it takes about 15% longer for compression and decompression. Also decompresses BZ files.
By Damien Harper. 2000/09/11

TNT2 Update1   (details) 49/50 48 ENG   6KB/1KB
TNT2 is a successor to TNT1, using BZ2 at its core. It compresses more and faster than TNT1, while using less memory. TNT2 is 100% compatible with TNT1.
By Yann Collet. 2009/04/25

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