NewBasic -- An x86 Assembler/Disassembler for DOS

• 19-Feb-2021
  Fixed a few bugs with memory operands which were making the 64-bit version crash.
  
  
• 07-Jan-2020
  Thanks to a fellow DOS enthusiast, I have updated my READOBJ utility to include more output, detailing a TurboC feature and a few other missing records.
  
  
• 12-June-2019
  I have added a 64-bit Windows executable in case you have a 64-bit only machine. Please note, this does not mean I have added 64-bit support to the assembler. This only means that the executable (NBASM64.EXE) is 64-bit machine capable. Very little testing was done on the 64-bit executable, though with all the tests I did perform, it functioned as expected. Please let me know if you find anything wrong with it. Thanks.
  
  
• 31-May-2017
  Fixed a bug that created a unique label even if inside a null .if statement. For example:

  .if FALSE
  @@:   xor  ax,ax
  .else
  @@:   xor  bx,bx
  .endif

  would create two unique labels, making all succeeding unique labels off-by-one.
  
  I also changed a few macro names:

  %VER   to _VER
  %LINE  to _LINE
  %YEAR  to _YEAR
  %MONTH to _MONTH
  %DAY   to _DAY

  Please update your .asm source files accordingly.
  
  
• 21-Sept-2016
  Due to the fact that I needed the FPU instructions, I have now added most all of them to this assembler. However, please note that I have not tested them much, so please verify that they actually assemble correctly.
  
  
• 10-Aug-2016
  Not much has been done on this assembler, compiler, or IDE. That could mean a good thing though. That could mean that I haven't found any bugs, right? Anyway, make sure and have a look at the "differences" page for the compiler, especially the farX keywords. If you have any questions on this tool kit, using it, how to write code with it, or help on your own code, be sure to at FYS [at] FYSNET [DOT] NET
  
  
• 13-Aug-2015
  I have now included NBC, the Newbasic C Compiler. It is heavily based on Alex's Smaller C found at https://github.com/alexfru/SmallerC. Source is included so that Alex and others that are interested may see the modifications I have made. Alex has done a much better job with his compiler than mine. His creates DOS executables where mine is only for my OS Development purposes, but I am including it here for your interest. Please see the included NBC.DOC file and the differences page for more information.
  
  
• 24-May-2013
  It seems that NBASM and NBASMIDE work okay on Windows 8 too. However, I can't stand Windows 8, so I am not going to check it very many times. I don't have a Windows 7 machine, so I don't know for sure on it.
  
  
• 13-May-2013
  A few more updates. Also made drastic improvements on the color formatting in the IDE. It still needs a little work, but it works a lot faster and better. There are a few slight modifications to the registry settings too. However, all you have to do is go to the Options menu and modify them yourself. Please let me know if you find any major errors.
  
  
• 3-May-2013
  Updated NBASMIDE a little. Now allows moving blocks to the left or right using the TAB and SHIFT+TAB keys. Also added that when you press ENTER, it moves down but stays in the same column. Added a few other things and fixed a few bugs.
  
  
• If you are new to NBASM, welcome, and please read this file for modifications and additions that may not be in the documentation.
  
  
• To subscribe to the announcement list, send an empty email to nbasm-subscribe@yahoogroups.com.
  
  
• I would like to thank all the people who have sent in a comment about NBASM. If you are using NBASM and haven't commented on it, please send me a comment about it. Whether you like it, dislike it, hate it, love it, etc. This way, I can see how many people are using NBASM and spend more time on finishing it. Thank you.