2023-11-25
Release of 3.1.1 source code and win32 binaries.
+ Change to pure zlib license for all files not contributed by others.
+ The logic in the sfx decruncher should also check if the setup copy area
  accesses RAM below ROM when deciding ram_during. Bug reported by Comos.
+ The desfx sub command should only consider mem areas created after setup for
  detection of the decrunched data. Bug reported by Gi-Joe.
+ Make c65 sfx target disable IRQ:s on exit in more situations.
+ Fix Atari 8bit sfx zero page addr collision.
+ Improve zp-usage and fix sfx basic for target PET 4032.

2021-05-22
Release of 3.1.1 source code and win32 binaries.
+ Added c65 as a new experimental target as -t65, suggested by Detlef Hastik.
+ Improve help messages for available targets. Patch by Dirk Jagdmann.
+ Added -y to add assembly fragment at the end of the sys line for the purpose
  of adding a short text using the .BYTE() and/or .TEXT() assembler directive.
  (This fragment will not be run as code).
+ Added a .TEXT("string") assembler directive to the sfx assembler. No encoding
  mapping is done. The byte values from the command line will be used directly.

2020-12-22
Release of 3.1.0 source code and Win32 binaries.
+ Fixed bug in the sfxdecr.s affecting c128 reported by Fredrik Ramsberg.
+ Implemented split encoding support  (-E) in the 6502 decruncher.
+ Updated raw decrunchers for Zilog Z80 contributed by Antonio Villena.
+ Added raw decrunchers for Intel 8080 contributed by Ivan Gorodetsky.
+ Added raw decrunchers for ARM 32bit thumb2 contributed by ALeX Kazik.
+ Implement optional forward decrunching properly in exodecrunch.s and as a
  consequence of this also remove krilldecr.s
+ Implement sequence read pointer blacklist to be able to avoid reading from
  specified memory areas like hardware registers (Experimental feature),
  Requested by Oziphantom.
+ update dasm and add acme exodecrunch sources
+ Improve compression by previous offset reuse, -P-32 to disable
+ Extended -e and -E to be able to reuse/calculate shared header/table info
  for multiple crunched files. (Experimental feature, no direct support in
  exodecrunch.s yet), Requested by Lazycow

2019-01-05
Release of 3.0.2 source code and Win32 binaries.
+ Add documentation about level, mem and raw outfile structure.
+ Fix raw -d -r combination to reverse the inbuffer before decrunch.
+ Fix -P0 literal sequences bug in exodec.c, Bug reported by Nino Porcino.
+ improved cruncher tuning for slightly improved compression on average.
+ Added sfx support for a new target, BBC Micro B (-t 0xbbcb).
+ Added -P+16 awareness to exodecrunch.s
+ Fix bucket optimization to be -T+4 aware in search.c, Bug reported by
  Ciccioriccio.
+ Fix absolute offset overflow bug in sfxdecr.s. Bug reported by Comos.

2018-08-10
Release of 3.0.1 source code and Win32 binaries.
+ Add missing clc to the new 6502 decrunchers. Bug reported by Soci.

2018-05-16
Release of 3.0.0 source code and Win32 binaries.
+ Up to almost 50% faster 6502 decruncher (sfx and stand-alone). However the
  bitstream format has changed in an incompatible way. See exo30info.txt for
  more info.

2018-03-08
Release of 2.0.11 source code and Win32 binaries.
+ No change from preview 3
2018-03-06
Release of 2.0.11 preview 3
+ Improved desfx c64 IO banking handling and automatic decrunched area
  detection.
+ sfx: Detected in-file type exported making target auto detection possible for
  some sfx bin and sfx <addr> (not sfx basic or sfx sys).
+ sfx: Applesingle file write now writes the header descriptors in in ascending
  order, suggested by Oliver Schmidt.

2018-02-20
Release of 2.0.11 preview 2
+ Fix compression improvement loop crashing bug exposed by the thread safety
  changes for library compilation, reported by Lasse Öörni.
+ Support the AppleSingle format instead of the 4 byte cc65 header, suggested
  by Oliver Schmidt.

2018-02-11
Release of 2.0.11 preview 1
+ Add i_raw assembler directive for sfx to generate header less output.
+ Make sfx 0xa2 fall back to 4 byte Apple II cc65 headers for in-files instead
  of prg-headers.
+ Add sfx bin directive as a shortcut for creating sfx files with as little
  impact on memory outside of the decrunched area as possible. Perfect for
  crunching Apple II binary files.

2017-12-25
Release of 2.0.10 source code and Win32 binaries.
+ Fix broken things in rawdecrs folder since 2.0.9
+ Add PET 4032 as sfx target from the nanoflite github fork.

2017-12-16
Release of 2.0.10 preview 3
+ Fix core dump when using max_passes=1 caused by static var removal.
+ Change zp-usage of the sfx-decr for plus4/c16 to avoid overwriting current
  device number address.

2017-12-09
Release of 2.0.10 preview 2
+ Add used encoding to the crunch_info struct returned by core crunch func.
+ Rework core compression core to not use local static vars to simplify use
  when compiled into a library.
+ rework -C into a generic favor speed flag and make it disable the crunch
  result changes too.
+ Improve crunch result slightly by also consider same length sequences at
  larger offsets too (but by doing this also slowing it down).

20170708
Release of 2.0.10 preview 1
+ Add a brief output mode enabled with -B, suggested by both Daniel Hotorp and
  Bacchus independently.
+ Display progress indication only on ttys and not when output is redirected,
  inspired by input from  Daniel Hotorp.
+ Make it possible to add offset and length to plain and prg file loading.
+ Improve sfx memory layout dump, suggested by Steffen Görzig.
+ sfx -Di_decr_table=2 should disable i_irq_during, reported by Steffen Görzig.
+ Updated z80 decrunchers, now with License information.
+ More portable by not using negative exit codes.
+ Add new keyword systrim to the sfx command. It behaves like the sys keyword
  but will also remove the sysline from the loaded infile.
+ Exit with an error if the parsing of the sfxdecr.s fails. This might happen
  with user provided assembly given by the options -x -X -s -f, reported by
  Stefan A. Haubenthal.
+ Change -mtune flag to make exomizer build on more platforms "out of the box".

2015-09-21
Release of 2.0.9 source code, Win32 and DOS binaries.
+ Fix gcc-compiler warnings.
+ sfx decr src comments echoed to stdout, reported by iAN CooG, fix by soci.
+ NULL pointer dereference crash, reported by Flavio, fix by soci.

2015-09-20
Release of 2.0.8 source code, Win32 and DOS binaries.
+ Fix bug reported and analyzed by Adrien Destugues. The ECHO token in asm.y
  collides with the flex ECHO macro. The cause is that Bison 2.3a and newer
  stopped to generate defines for the declared tokens. To resolve this the ECHO
  token has been renamed to ECHO1.
+ Add -E flag to not write the encoding to the outfile.
+ Remove max nr of chunks limit from the chunkpool allocator.
+ Enforce match max_len everwhere, bug reported by Zik / Futurs.

2013-04-14
Release of 2.0.7 source code, Win32 and DOS binaries.
+ Bugfixed commodore sfx targets to automatically disable irq when decrunching
  over system areas. This together with moving the table to zero-page,
  -Di_table_addr=0x2, allows decrunching $0200-<end of mem> without corruption
  for all commodore targets except for the vic20-configs without a 3kB memory
  expansion since they have a memory hole at $0400-$1000.
+ Bugfixed z80 decrunchers from Metalbrain.
+ Bugfixed sfx c16/plus4 target where the default irq could corrupt memory
  while decrunching data that covers $07f6-$0800, reported by Luca/FIRE.
+ Bugfixed sfx c16/plus4 target where the default decrunch effect could corrupt
  memory while decrunching data that covers $0be7, reported by Luca/FIRE.
+ Added feature to sfx-mode that complains if the data it too big to fit in the
  available memory of the selected target, suggested by Luca/FIRE.
+ Added c16 target, -t 4, like -t4 but with smaller memory, suggested by
  Luca/FIRE.

2013-01-27
Release of 2.0.6 source code, Win32 and DOS binaries.
+ New improvements to the z80 decrunchers, again smaller and faster.

2013-01-12
Release of 2.0.5 source code, Win32 and DOS binaries.
+ Add -C and -M <length> flags that trades crunch result for speed. It is now
  possible to really speed up crunching, even for "worst case"-type files.
+ Now skips the DAG traversing of the final pass if the encoding hasn't changed
  since the previous pass.

2012-08-16
Release of 2.0.4 source code, Win32 and DOS binaries.
+ Bug in z80 decrunchers fixed by Metalbrain. Thanks goes to Hervé Monchatre
  and Tim Riemann (Octoate) for reporting.
+ Implement sfx basic for the Apple II target.
+ Improve documentation slightly for the sfx and level commands.

2012-03-25
Release of 2.0.3 source code, Win32 and DOS binaries.
+ z80 decrunchers improved by Antonio Villena, now smaller and faster.

2011-08-19
Release of 2.0.2 source code, Win32 and DOS binaries.
+ Added 6809-decruncher contributed by Edouard Forler.
+ Fix language errors in the documentation. Thanks to Csabo/LOD.
+ Remove bogus printout about the default decrunch effect when using a custom
  decrunch effect. Bug reported by Csabo/LOD.
+ Fix bug that prevented the correct error message from showing when trying to
  combine a basic start and a non rom config for the sfx command.  Bug reported
  by iAN CooG.

2011-02-06
Release of 2.0.1 source code, Win32 and DOS binaries.
+ Fix bug in log.c that caused the desfx command to loop if the log level was
  lower than debug. Bug report by iAN CooG.
2011-01-22
Release of 2.0 source code, Win32 and DOS binaries.
+ Fix bug in sfx decruncher setup where data was copied unnecessary. Triggered
  by using -Di_load_addr, reported by nbla000
+ Add i_line_number symbol to be able to change the default line number of the
  basic line of the sfx decruncher. Feature suggested by Chicken
+ 6502 emulator core now features memory read/write callbacks
+ Add desfx -e flag to override the automatic entry point detection, feature
  suggestion with patch by iAN CooG/HokutoForce. (Patch reworked somewhat,
  error handling added)
+ Fix desfx handling of files that decrunch to and including 0xffff, Bug report
  with patch by iAN CooG/HokutoForce. (Patch reworked somewhat, end addresses
  are exclusive everywhere else)
+ Fix argument handling of desfx, Bug report + patch by iAN CooG/HokutoForce.

2008-09-08
Release of 2.0beta7 source code, Win32 and DOS binaries.
+ Refactored some functions from exo_main.c and exo_helper.c into a new file,
  exo_util.c so the testprogram could use them too.
+ Fixed a bug in exo_main where the sys/call basic token was mixed up with
  the basic_txt_start. This confused thes sfx sys sub-command.
+ Fixed a bug in krilldecr.s. The handling of literal sequences longer than
  256 bytes was broken.
+ Added a testprogram to test that the decrunchers in the exodecrs folder
  works. This feature uses the 6502 emulation core to run test programs. It
  tests literal sequences longer than 256 bytes and run lengths longer than 256
  bytes for all four decruncher variants, backward, forward, streaming and
  chunk streaming.
+ Added a z80 decruncher contributed by Metalbrain.
+ Added an experimental desfx command that should be able to decrunch sfx
  crunched files. Uses the 6502 emulation core to run the sfx-decrunchers.
+ Added a 6502 emulator core.
+ Fix rare situation when sfxdecr.s failed to assemble.
+ Improve the help text when no sub-command is given.
+ Improve the handling of ROM/RAM-banking and NMIs for the atari target in the
  sfx decruncher.
+ Fix broken op definition ldy abs,x in the sfx assembler, bug reported by
   Stefano Tognon.

2007-05-13
Prerelease of 2.0beta7 source code, Win32 and DOS binaries.
+ Add loading of Oric tap files to the sfx command.
+ Add support for microcontroller RAM to Oric sfx target.
+ Add flags to customize enter and exit code for the sfx sub-command.
+ The level and mem sub-commands now output more info about the generated file.

2007-01-28
Release of 2.0beta6 source code, Win32 and DOS binaries.
+ Fix c128 target bugs in the sfx command
+ Add an experimental Oric 1 target to the sfx command.

2006-10-08
Release of 2.0beta5 source code, Win32 and DOS binaries.
+ Add a decruncher able to decrunch forwards, exodepack.s, contributed by
  Krill/Plush.
+ Add support for forward crunching to the mem and level sub commands.
+ Remove broken usage of membuf_append that breaks on big-endian targets. Bug
  reported by MagerValp.
+ Add a dasm version of the exodecruncher source.

2006-07-08
Release of 2.0beta4 source code, Win32 and DOS binaries.
+ Change my email address (again).
+ Added option to the Apple target to disconnect the loaded DOS.
+ Fix length field error in generated Apple II file header.
+ Don't use setjmp/longjmp due to obscure bug when building for mingw with -O3
  -fomit-frame-pointer. Bug reported by iAN CooG/HokutoForce.
+ Add multipass functionality to the assembler in order to be able to do more
  complex things in the decruncher source.
+ fix the sfx decruncher to work for a wider range of i_load_addr values.
  Bug reported by iAN CooG/HokutoForce.
+ Add optional offset,len for raw command file reading.

2005-11-14
Release of 2.0beta3 source code, win32 and dos binaries.
+ i_ram_exit bug for the C64 target found by iAN CooG/HokutoForce fixed.
+ Effect shorthands -n for no effect, -x1 for Accumulator based border flash,
  -x2 for X-register based border flash and -x3 for Y-register based border
  flash. -x<fast effect assembler fragment> -X<slow effect assembler fragment>
+ removed the i_fast_effect symbol. Now border effects are fast and blinking
  char is slow.
+ Added flag -x<effect assembler fragment> to the sfx command.
+ Improved docs about the mem command and assembler symbols.
+ fixed spelling bug in i_effect=2 mode. Bug found by iAN CooG/HokutoForce.

2005-11-02
Release of 2.0beta2 win32 and dos binaries.
+ added results for canterbury and calgary corpae.
+ beginning a documentation section in exo20info.txt
+ changed the exoraw binary into a sub command of exomizer.
+ renamed symbols i_(ram|irq)_on_(entering|exit) to i_(ram|irq)_(enter|exit)
+ renamed symboli_config_effect to i_effect
+ added symbols i_(ram|irq)_during.
+ added new sfx target -t 168 ($a8), The Atari 400/800 XL/XE computer family.
  The sfx file is written as a xex-file.
+ added ability to autodetect and read Atari Xex-files.
+ cmpression results should be exact as 1.1.5 now (if the -c flag is used).

2005-04-10
replaced 2.0beta1
+ tuned the cruncher for better compression, should be on pair with 1.1.5 now.
+ modified the usage of the symbol i_ram_on_exit
+ documented symbol i_table_addr
+ added symbol i_irq_on_exit

2005-04-06
replaced 2.0beta1
+ fixed +4 bank optmization in sfx decruncher
+ fixed bug in non-literal-sequence sfx decruncher that caused
  the decrunched data to be offset in memory.

2005-04-03
replaced 2.0beta1
+ fixed -Di_config_effect

2005-04-02
initial release of 2.0beta1 no source.
