24.1  A86

This assembler is a very capable assembler for 80286 and earlier
processors.  Registration will get you a version capable of handling
80386 processor.  For more details, see the A86 section of this FAQ.
    http://www2.dgsys.com/~raymoon/faq/a86.html#3

If you want to go get them now:
    ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/a86v402.zip
    ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/d86v402.zip

24.2  CHASM, CHASM4.ZIP

This assembler was the first shareware assembler available.  CHASM was
written Mr. David Whitman.  The current version available is version 4
and dated in 1983.  This version supports only 8088 processor, and the
output only is:
    .COM file (.EXE is not supported)
    BLOADable - format for interpreted BASIC to load and execute
    External procedure for TurboPascal - TurboPascal version not given

The version available on the internet is annoyware and crippleware.  For
$40 registration fee, you will get the complete version without the
annoying banner page.  This version supports macros, conditional
assembly, include files, operand expressions and structures.

I do not recommend this assembler because of it limited capability and
it is very out of date.  Its URL is:
    ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/chasm4.zip

24.4  THE ARROWSOFT ASSEMBLER, VALARROW.ZIP

This assembler is the public domain version of the Professional
Arrowsoft Assembler by Arrowsoft Systems, Inc.  The version is 1.00d and
is dated in 1986.  This assembler is a MASM 3.0 compatible assembler and
supports up to 80286 processor.  Compared to the Professional version,
the public domain version has one major limitation.  The source file
size is limited to 64K bytes.

The file also includes a public domain linker, full screen editor and an
EXE2BIN clone program.

    ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/valarrow.zip

Rick Elbers maintains several web pages dedicated to this assembler.  If
you use this assembler, visit this site.

    http://www.geocities.com/SiliconValley/Heights/7052/valarr.html

24.5  WOLFWARE ASSEMBLER, WASM223.ZIP

This assembler was written by Mr. Eric Tauck.  The latest version is
2.23 and dates from 1991.  This assembler supports up to the 80286
processor.  It will assemble directly into a .COM file or .obj file.  It
supports a simplified syntax and program structure so programs written
for this assembler may not be compatible with other assemblers.  Several
source files for programs are included with the .zip file.

It is available from the author at:
    ftp://ftp.mc.net/pub/users/warp/wasm223.zip
    
24.6  MAGIC ASSEMBLER, ASM110.ZIP

The version is 1.10 and dates from March 1995.  This assembler was
written by Mr. Bert Greevenbosch.  The output is either a .COM file or a
boot sector program.  The assembly commands are standard except for the
jump and call commands.  Again, the source code will not be compatible
with other assemblers.  Beware of version 1.04.  That version had a bug
that when executed without the print command, the assembler terminated
with a runtime error.  This is corrected in subsequent versions.

    ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/asm110.zip

24.7  GEMA, GEMA.ZIP

This assembler revision is 2.6a with a date, 7 Jan 96.  It is different
from all other x86 assemblers I have seen.  This assembler is based upon
Motorola's 68k mnemonics and logical structure.  All instructions,
Pentium Pro and known undocumented are supported.  GEMA was designed
especially for 32-bit processing.  The assembler will take only one
source code file and will output a .COM or .EXE file.  No linker is
required.  DESA.EXE, a beta GEMA disassembler is available in the GEMA
package. ASM2GEMA.EXE, a TASM to GEMA translator is no longer available
as part of the GEMA package.  An interactive real and protected-mode
debugger is in progress.

This assembler is available from:
    ftp://ftp.nether.net/pub/gema/gema.zip  (ftp connections refused)
    http://prinz.hannover.sgh-net.de/~londberg/Gema.zip

24.8  NASM

The birth of this assembler started out of a thread that started on
comp.lang.asm.x86.  When you download this assembler, you get the source
code in ANSI C.  The web page devoted to this assembler is:

    http://www.cryogen.com/Nasm/
    http://www.web-sites.co.uk/nasm/

NASM is an 80x86 assembler designed for portability and modularity.  It
supports a range of object file formats including Linux a.out and ELF,
COFF, Microsoft 16-bit OBJ and Win32. It will also output plain binary
files. Its syntax is designed to be simple and easy to understand,
similar to Intel's but less complex. It supports Pentium, P6 and MMX
opcodes, and has macro capability. It includes a disassembler as well.

Major new features present in this release include:
    1.  The long-awaited listing file support!
    2.  Support for a search path for include files.
    3.  OS/2 object file support, although it's experimental as yet
        (could anyone with OS/2 _please_ give it a testing for me?).
    4.  This release, and all NASM releases from now on, include pre-
        built Win32 versions of NASM and NDISASM, as well as the 16-bit
        DOS versions.
    5.  Numerous bug fixes, including the repeatedly-reported bug about
        blank lines in macro definitions, and the one that prevented 32-
        bit OBJ files working with some linkers.

The assembler also is available from:

  ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/nasm097.zip  assembler
  ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/nasm097d.zip docs
  ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/nasm097s.zip source

24.9  GAS, GNU Assembler

This assembler with many object-file utilities will run on 386 systems
running the following operating systems: AIX 386BSD, NetBSD, BSDI/386,
Linux, SCO, Unixware, DOS/DJGPP.  The below file is a gzipped tar file.
You will need gzip and tar programs to uncompress and extract the files.
The assembler and utilities are part of the GNU binutils file.

    ftp://prep.ai.mit.edu/pub/gnu/binutils-2.8.tar.gz           5018 Kb
    ftp://prep.ai.mit.edu/pub/gnu/binutils-2.8-2.8.1-patch.gz     36 Kb

24.10  REAL TOOLS 1.0 (BETA), RTOOLS.ZIP

This assembler is dated in Dec 93 and is a beta test.  The nice thing
about this assembler is that it comes with its own DOS-windowing IDE.
This assembler was written by International Systems development.  The
instruction set supported is 486 including protected mode instructions,
but some holes do exist.  This assembler has a unique way of supporting
macros.  32-bit supported.  On line help and debugger are available with
registered product.

    ftp://ftp.simtel.net/pub/simtelnet/msdos/asmutl/rtools.zip

24.11  GENERAL ASSEMBLER, GASM01G.ZIP

This is a new assembler written by Jim Gage.  This version outputs .COM
files and can be used to write device drivers.  Another version
supporting up to the 486 instruction set and .obj output is in the
works.  This assembler is available:

    http://www.engr.uark.edu/~jrg/gasm/gasm01f.zip

24.12  CROSS FIRE ASSEMBLER

This assembler is an 80x86 assembler that uses 680x0 syntax.  If you are
coming from the 680x0 environment, you may want to try this as your
first assembler.  This assembler supports up to the pentium instruction
set, 16 and 32 bit segments, supports direct generation of .com, .exe,
.sys, and more file formats, and supports pmode programming.  This
package comes with its own pmode DOS extender by TRAN.  Currently, the
math coprocessor, MMX instructions and .obj output is not supported.

You can get this assembler:

    ftp://www.simtel.net/pub/simtelnet/msdos/asmutl/xfire510.zip

24.13  JAS Assembler (DJGPP ASM)

Nicola Gaggi has written an assembler for DJGPP that is based upon NASM.
Jas has a syntax much like TASM and is faster because it is a one pass
assembler.

Download it from:
    ftp://teeri.oulu.fi/pub/msdos/programming/djgpp2/jas12.zip

Version 1.3 should be available soon.

24.14  Rodrigo Augusto’s IASM V1.0

The Intel Architecture Assembler v1.0 is a platform independent
assembler developed for the Intel 80x86 family of microprocessors.  It
has a simple syntax.  The assembler was developed to get an easy to use
flat memory assembler.  A linker is not necessary as the assembler
outputs a .COM file, but this can be changed.  IASM supports
instructions from all the Intel family, from the 8086/8088 to the
Pentium II; MMX and floating point instructions also are supported.
IASM can generate both 16 and 32-bits code.

The assembler is available from Rodrigo Augusto’s home page:
    http://www.dcc.ufmg.br/~augusto/project/

24.15  The Visual Assembler

This assembler currently is under development, but it should be worth
watching.  It is an attempt to apply Rapid Application Development
techniques to assembly language programming.  The Visual Assembler is
being developed based that assembly language can be used quickly and
easily to program Win32 applications though the careful implementation
and use of reusable class modules rather than classes.

The Visual Assembler is being build around an IDE that will make
extensive use wizard modules that will guide the user through creating
Win32 applications, libraries, drivers and VxDs.  The IDE will have
integrated tools including a debugger, calculator, binary editor, and
disassembler.  The IDE will support assembling through linking to the
final program.

The home page of this effort is:
    http://www.fortunecity.com/skyscraper/lycos/403/

24.16  Gareth Owen's GASM

    http://www.athenenet.co.uk/homepages/gaz/gasm/
        Use syntax similar to NASM

Contributor:  Raymond Moon, raymoon@moonware.dgsys.com
Last changed: 23 Nov 98

Some parts © 2009 Advameg, Inc.