Editing Deflate (section)

== Decoder, decompressor ==
Inflate is the decoding process that takes a Deflate bitstream for decompression and correctly produces the original full-size data or file.

=== Inflate-only implementations ===
The normal intent with an alternative Inflate implementation is highly optimized decoding speed, or extremely predictable [[random-access memory]] (RAM) use for [[microcontroller]] [[embedded system]]s.

* [[Assembly language|Assembly]]
** [https://github.com/pfusik/zlib6502 6502 inflate], written by Piotr Fusik in [[MOS Technology 6502|6502]] assembly language.
** [http://sourceforge.net/projects/samflate/ SAMflate], written by Andrew Collier in [[Zilog Z80]] assembly language with optional memory paging support for the [[SAM Coupé]], and released under a combination of [[software license]]s: [[Berkeley Software Distribution]] ([[BSD licenses|BSD]]), [[GNU General Public License]] (GPL), [[GNU Lesser General Public License]] (LGPL), [[Debian Free Software Guidelines]] (DFSG).
** [https://web.archive.org/web/20160304053236/https://bitbucket.org/grauw/gunzip gunzip], written by Laurens Holst in [[Zilog Z80|Z80]] assembly language for the [[MSX]], licensed under [[BSD licenses|BSD]].
** [https://github.com/keirf/Amiga-Stuff inflate.asm], a fast and efficient implementation in [[Motorola 68000]] machine language, written by Keir Fraser and released into the [[public domain]].
<!-- ** <code>PCUNZP.ASM</code>, by Michael Mefford. written in [[x86]] [[assembly language]] and published in [[PCMag|PC Magazine]] 1992-03-31. need to check, might not have supported the newer ''Deflate'' method -->

* [[C (programming language)|C]], [[C++]]
** [https://web.archive.org/web/20070927122958/http://www.mikekohn.net/file_formats/kunzip.php kunzip] by Michael Kohn and unrelated to "KZIP". Comes with [[C (programming language)|C]] [[source code]] under the [[GNU Lesser General Public License]] (LGPL). Used in the GNU Image Manipulation Program ([[GIMP]]) installer.
** puff.c ([[zlib]]), a small, unencumbered, single-file reference implementation included in the /contrib/puff directory of the zlib distribution.
** [http://www.ibsensoftware.com/download.html tinf] written by Jørgen Ibsen in [[ANSI C]] and comes with zlib license. Adds about 2k code.
** [http://code.google.com/p/miniz/source/browse/trunk/tinfl.c tinfl.c] ([http://code.google.com/p/miniz/ miniz]), Public domain Inflate implementation contained entirely in a single C function.
* <code>PCDEZIP</code>, Bob Flanders and Michael Holmes, published in [[PCMag|PC Magazine]] 1994-01-11.
* [http://opensource.franz.com/deflate/ inflate.cl] by John Foderaro. Self-standing [[Common Lisp]] decoder distributed with a [[GNU Lesser General Public License]] (LGPL).
* [http://seed7.sourceforge.net/libraries/inflate.htm inflate.s7i]/[http://seed7.sourceforge.net/libraries/gzip.htm gzip.s7i], a pure-[[Seed7]] implementation of Deflate and gzip decompression, by Thomas Mertes; released under the [[GNU Lesser General Public License]] (LGPL).
* [http://www.paul.sladen.org/projects/pyflate/ pyflate], a pure-[[Python (programming language)|Python]] stand-alone Deflate ([[gzip]]) and [[bzip2]] decoder by Paul Sladen. Written for research/prototyping and released under a combination of [[software license]]s: [[Berkeley Software Distribution]] ([[BSD licenses|BSD]]), [[GNU General Public License]] (GPL), [[GNU Lesser General Public License]] (LGPL), [[Debian Free Software Guidelines]] (DFSG).
* [http://lua-users.org/wiki/ModuleCompressDeflateLua deflatelua], a pure-[[Lua (programming language)|Lua]] implementation of Deflate and [[gzip]]/zlib decompression, by David Manura.
* [https://github.com/chrisdickinson/inflate inflate] a pure-[[JavaScript]] implementation of Inflate by Chris Dickinson
* [https://github.com/nodeca/pako pako]: JavaScript speed-optimized port of zlib. Contains separate build with inflate only.

=== Hardware decoders ===
* [https://web.archive.org/web/20171010000403/http://www.bitsim.com/en/our-design-model/#Blocks Serial Inflate GPU] from BitSim. Hardware implementation of Inflate. Part of the Bitsim Accelerated Display Graphics Engine (BADGE) controller offering for embedded systems.
* [https://github.com/tomtor/HDL-deflate HDL-Deflate] GPL FPGA implementation.
* [https://www.cast-inc.com/compression/gzip-lossless-data-compression/zipaccel-d/ ZipAccel-D] from [https://www.cast-inc.com/ CAST Inc]. This is a Silicon IP core supporting decompression of Deflate, [[Zlib]] and [[Gzip]] files. The ZipAccel-D IP core that can be implemented in [[Application-specific integrated circuit|ASIC]] or [[Field-programmable gate array|FPGAs]]. The company offers compression/decompression accelerator board reference designs for Intel FPGA ([https://www.cast-inc.com/compression/gzip-lossless-data-compression/gzip-rd-int/ ZipAccel-RD-INT]) and Xilinx FPGAs ([https://www.cast-inc.com/compression/gzip-lossless-data-compression/gzip-rd-xil/ ZipAccel-RD-XIL]).
* [[IBM z15 (microprocessor)|IBM z15]] CPUs incorporate an improved version of the Nest Accelerator Unit (NXU) hardware acceleration from the zEDC Express [[input/output]] (I/O) expansion cards used in z14 systems for hardware Deflate compression and decompression as specified by RFC1951.<ref name="z15_announce"/><ref name="z15_techmanual"/>
* Starting with the [[POWER9]] architecture, IBM added hardware support for compressing and decompressing Deflate (as specified by RFC 1951) to the formerly crypto-centric Nest accelerator (NX) core introduced with [[POWER7]]+. This support is available to programs running with [[IBM AIX|AIX]] 7.2 Technology Level 4 Expansion Pack or AIX 7.2 Technology Level 5 Service Pack 2 through the zlibNX library.<ref name="zlibnx"/><ref name="power7_accel"/>