NewBasic -- An x86 Assembler/Disassembler for DOS

The NewBasic Assembler, NBASM, is an x86 assembler and is near MASM 5.1x compatible.

Notes:

14-Mar-2024
A few more additions and fixes to NBASM. Please see what's new.
15-Feb-2024
A few more additions and fixes to NBASM. Please see what's new.
1-Jan-2024
Many additions and fixes to NBASM. It has been a while since I have used this assembler, but when a larger project included the use of this assembler, I found a few errors, bugs, missing syntax/instructions, and a few other changes. Please see what's new.
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.

If you have any comments, questions, suggestions, or bug reports, please let me know.

Visit here, for a list of other compilers and assemblers and/or links to other sites that list compilers and assembers.

Release of beta versions:
(If an item doesn't contain a link, then it is not ready for release yet)

Item	Name	Version	(Size) Notes
The Assembler:	NBASM	v00.27.14	(1.1M) Freeware x86 assembler (please read) (what's new)
The Disassembler:	NBDISASM	v00.10.41	Freeware x86 disassembler (Included in NBASM.ZIP)
IDE:	NBASMIDE	v00.24.35	(100k) The new and improved IDE for NBASM. Requires NBASMW.EXE from NBASM above.
The Compiler:	NBC	v00.20.27	The NewBasic C Compiler (with source, and included in NBASM.ZIP)
The Linker:	NBL	v00.16.10	(42k) Freeware Linker for NBASM above.
The Whole Package*	NEWBASIC	v00.98.27

NBASM FAQ list	NBASMFAQ.HTM	12Aug2007	* NBASM FAQ List *

Tiny Model Library:	NBASMC.LIB	v00.91.05	(2k) current version of the library
Small Model Library:	SMLIB.LIB	v00.55.00	for use with NBC and the small model
The Extended Lib:	NBCPP10	v00.90.00
The Mouse Lib:	MOUSE	v00.98.03
The Math Lib:	MATH	v00.90.00
The Helper:	NBHLP	v01.00.00
The Library Manager:	LibMan	v00.91.02	(7k) Allows you to create your own library (beta release)
Exe2Bin converter:	EXE2COM	v01.16.00	(2k) Converts an EXE file to a COM file
Shrink an Exe:	SHRNKEXE	v00.91.00	(1k) Shrinks an EXE file by up to 480 bytes
Exe header viewer:	EXEHDR	v01.00.00	(3k) View EXE headers
The Memory Viewer:	MEMORY	v01.02.00	(1k) View the MCBs
Dump OBJ file:	READOBJ	v01.10.50	(10k) View .OBJ files
Dump a file:	DUMP	v01.00.00	(16k) Dump a files contents

* The whole package includes libraries and utilities

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If you are reporting a bug, please state all info you possibly can pertaining to the problem. What DOS version you are using, a Windows session or not, what NBASM version, the error number returned, etc. If at all possible, please send your source code (or a part of) that returned the error/bug.