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64TASS V1.58.2974   [2023]

Released by :
Singular [web]

Release Date :
11 January 2023

Type :
Other Platform C64 Tool

6502/65C02/R65C02/W65C02/65CE02/65816/DTV/65EL02 Turbo Assembler

Website :

User rating:awaiting 8 votes (4 left)   See votestatistics

Credits :
Code .... Soci of Singular, The IDE64 project, VICE Team

Download :
https://csdb.dk/getinternalfile.php/240639/64tass-1.58.2974.zip (downloads: 110)
https://csdb.dk/getinternalfile.php/240640/64tass-1.58.2974-src.zip (downloads: 39)

Look for downloads on external sites:

Production Info
Submitted by soci on 11 January 2023
r2974 (2023-01-11)

This is a bugfix release due to the broken multi file output. There were
a bunch of encoding related work meanwhile so these are included as well.


* There was a mistake which could cause crashes (usually on Windows)
  when outputting sections to multiple files.
* Linking to older versions of MS C library could result in unexpected
  behaviour when Unicode characters were attempted to be output due to
  differences to ISO-C. Such functions are not used anymore. The
  precompiled binary used a recent enough toolchain and so was not
* Map file output not written to a file could still report a file open
  error if the standard output was redirected and that couldn't be written.
* In some cases ANSI colour sequences could end up in text output to files.
  This shouldn't happen now.
* Memory maps written to files were not added to makefile as outputs.
* The Notepad++ syntax file was incompatible with dark-mode as it set the
  text background to white instead of transparent.
* When running on DOS the code page was not detected with some versions
  of the OS.
* Attempting to use it on Windows versions without wide character
  support resulted in immediate exit. Now it can be used as normal.
* When trying to use options with non-ASCII characters the error message
  showed garbage.
* Coloured diagnostic messages only worked in console window but not in
  mintty (unless compiled for Cygwin). Now it should work with the
  native version as well.
* Depending on the C library memory map output could hang due to a
  mistake. (e.g. on Amiga)


* On Windows the file encoding for "ANSI" files were assumed to use the
  encoding from the current locale. However this can be different from
  the active code page what text editors are using. Now such files are
  assumed to use the active code page unless the locale is set differently
  in the environment. Regardless UTF-8 sources are best for portability.
* On Windows text output (e.g. listing) was UTF-8 or ASCII depending on
  the toolchain used. Now the default encoding is the active code page.
  This can be UTF-8 on recent systems but in any case it can be forced by
  setting an UTF-8 locale through the environment.
* Depending on C library version printable Unicode characters showed
  placeholders even if the encoding would allow for it (e.g. UTF-8).
  This is now determined internally to be consistent across platforms.
* The subset of Unicode characters usable in identifiers got more strict
* Updated to Unicode 13.
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CSDb (Commodore 64 Scene Database) is a website which goal is to gather as much information and material about the scene around the commodore 64 computer - the worlds most popular home computer throughout time. Here you can find almost anything which was ever made for the commodore 64, and more is being added every day. As this website is scene related, you can mostly find demos, music and graphics made by the people who made the scene (the sceners), but you can also find a lot of the old classic games here. Try out the search box in the top right corner, or check out the CSDb main page for the latest additions.
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