Browse free open source Assemblers and projects below. Use the toggles on the left to filter open source Assemblers by OS, license, language, programming language, and project status.

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  • 1
    Integrated Development Environment for some microcontrollers based on 8051(e.g. AT89S8253). Supported languages are Assembly and C. It has its own simulator, assembler, editor and many other tools. See the project web site for more details and the newest updates.
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    Downloads: 370 This Week
    Last Update:
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  • 2

    ACME Cross-Assembler

    multi-platform cross assembler for 6502/6510/65816 cpu

    ACME is a free cross assembler released under the GNU GPL. It can produce code for the following processors: 6502, 6510 (including illegal opcodes), 65c02 and 65816. ACME supports the standard assembler stuff like global/local/anonymous labels, offset assembly, conditional assembly and looping assembly. It can include other source files as well as binaries while assembling. Calculations can be done in integer or float mode. Oh, and it is fast.
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    Downloads: 130 This Week
    Last Update:
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  • 3
    JWasm is a Masm-compatible assembler. It supports 16-, 32- and 64-bit code, instructions up to AVX and various output formats. It's written in C.
    Downloads: 35 This Week
    Last Update:
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  • 4
    MinGW GCC For M68K

    MinGW GCC For M68K

    MinGW GCC cross development environment for M68K.

    This is a Windows command line based cross development environment for the M68K/ColdFire family of processors built from the latest stable release of GCC (currently 13.1.0). I recently incorrectly built 12.2.0 so have deleted it. Also included is Gnu make along with the necessary MinGW dlls to make it all work. I build this tool chain, from time to time, to use for testing Flash Insight, a device programmer that is available on my website. I want to make it available to the embedded development community since building gcc under MinGW isn't a trivial exercise and if you're like me you probably just want to work on your project and not fiddle with building tool chains. Unzip the archive to the location of your choice, include the top level "bin" directory in your path and start developing.
    Downloads: 39 This Week
    Last Update:
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  • 5
    MinGW GCC for Power PC

    MinGW GCC for Power PC

    MinGW GCC cross development environment for Power PC.

    This is a Windows command line based cross development environment for Power PC built from the latest stable release of GCC (currently 13.1.0). I built 12.2.0 incorrectly so I've deleted it. Also included is Gnu make along with the necessary MinGW dlls to make it all work. I build tool chains for other targets, from time to time, to use for testing Flash Insight, a device programmer that is available on my website. Flash Insight doesn't currently support PowerPC but once I have the tool chain building for one target it generally builds for all targets. I want to make this tool chain available to the embedded development community since building gcc under MinGW isn't a trivial exercise and if you're like me you probably just want to work on your project and not fiddle with building tool chains. Unzip the archive to the location of your choice, include the top level "bin" directory in your path and start developing.
    Downloads: 54 This Week
    Last Update:
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  • 6
    zDevStudio - Z80 Development Studio
    zDevStudio is an open source cross-platform IDE based on Pasmo compiler designed to help coders and retrocoders to develop software for Zilog Z80 8 bit CPU.
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    Downloads: 16 This Week
    Last Update:
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  • 7
    Z88 Development Kit

    Z88 Development Kit

    C compiler and dev kit for the z80 with assembly language libraries.

    Z88DK is a complete Z80 / Z180 development kit that includes C compiler, assembler, linker, a tool for generating executables in a number of formats, and miscellaneous other tools. Over 80 machines are directly supported out of the box including standalone Z80 and Z180 embedded systems. Z88DK's extensive assembly language libraries give it significant performance advantages over other Z80 C Compilers. Building software for standalone or generic Z80 systems: https://www.z88dk.org/wiki/doku.php?id=libnew:target_embedded Visit us at github for the current version with bugfixes and new features: https://github.com/z88dk/z88dk
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    Downloads: 22 This Week
    Last Update:
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  • 8
    crossdjgppv1

    crossdjgppv1

    Cross compiling environment to DJGPP v1

    Win32 hosted tools to cross compile to DJGPP v1 (go32) for MS-DOS. Now includes GCC 1.27 aka the first version available to support the i386 processor.
    Downloads: 38 This Week
    Last Update:
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  • 9
    A cross assembler for the ubiquitous Intel(tm) 8048 family of microcontrollers. Also supports compatible parts such as the 8035, 8039, 8049, etc. Binaries are available for Windows, Linux and Mac OSX.
    Downloads: 6 This Week
    Last Update:
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  • 10
    Dev65 is a macro assembler, linker and librarian suite for the 6501, 6502, 65C02, 65816 and 65832 family of microprocessors coded in Java for portability. The code is based on a framework that could support other system architectures.
    Downloads: 0 This Week
    Last Update:
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  • 11
    This is a port of several development tools for Freescale M68HC08/HCS08 embedded microcontrollers families. Currently work is focused on binutils (as,ld), gdb and sim port. GCC, newlib, etc. porting will start after finishing the main as/ld support.
    Downloads: 0 This Week
    Last Update:
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  • 12
    The ucsd-psystem-xc project provides a Pascal cross compiler for producing UCSD p-System code files on Posix hosts, such as linux. It also provides some other related tools, such as a disassembler.
    Downloads: 0 This Week
    Last Update:
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  • 13
    Yet Another GB-Z80/Z80/6502/65C02/6510/65816/HUC6280/SPC-700 Multi Platform Cross Assembler Package
    Downloads: 0 This Week
    Last Update:
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  • 14
    asxa: Cross Assembler for NXP XA-51 Microcontrollers. Included is a monitor in XA assembly language with a disassembler a a debugger.
    Downloads: 0 This Week
    Last Update:
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  • 15

    rundotso

    ARM linux run shared library rundotso dlopen dlsym Inline Assembler

    windows has rundll, rundotso is for linux load shared library(.so) and run the functions. rundotso.c you can load shared lib and run the function. It likes the rundll.exe in windows os. compiled and tested under the android ndk. you can use any arm compiler to try. adb push rundotso /data adb shell /data/rundotso /system/libc.so system "ls /data" adb shell /data/rundotso /system/libc.so printf "%d %c %s %d %c %s" 16 G HelloRundotsoTest 16 d end Have fun! Made by Biyong SUN Songjiang, Shanghai, China. Email: sunbiyong@163.com
    Downloads: 0 This Week
    Last Update:
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