Open Source C Assemblers

The "Open On-Chip Debugger" provides JTAG/SWD access from GDB (or directly with TCL scripts) to processors with ARM and MIPS based cores. See website for full list of supported targets.

Creates highly optimized Animated PNG files from PNG/TGA image sequences. CLI versions available for all major OSes. GUI versions for Windows and macOS. Also, APNG Disassembler can be found at http://sourceforge.net/projects/apngdis

64tass is cross assembler targeting the 65xx series of micro processors.

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.

Atmel AVR Assembler for all platforms. Compatible with Atmel's own assembler. Extra macro features, auto type conversion for macros, conditional assembly, creates .coff files for debugging, special 100% identical output compared to orig. Atmel Assem

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.

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

Udis86 is an easy-to-use minimalistic disassembler library for the x86 and x86-64 instruction set architectures. The primary intent of the design and development of udis86 is to aid software development projects that entail binary code analysis.

The ebe programming environment is a nice IDE designed for developing Assembly programs. It also handles C and C++ programs as well since there was not much extra effort. It used to support Fortran and this could return if people want Fortran. This project is an effort to recode ebe using C++ and QT. Originally ebe was coded using Python, Tkinter and Pmw, which worked out pretty well. The QT environment offers substantially better GUI controls. The most obvious difference is that Python ebe has a lot of separate windows, while the QT ebe will use 1 main window and a collection of dockable subwindows. This will make it easier to use.

BEYE (Binary EYE) is a free, portable, advanced file viewer with built-in editor for binary, hexadecimal and disassembler modes. It contains a highlight AVR/Java/i86-AMD64/ARM-XScale/PPC-64 and other disassembler, full preview of MZ,NE,PE,ELF and other.

Z80~Ex is the portable ZiLOG Z80 CPU emulator designed as a library. Goals include : precise opcode emulation (documented & undocumented), exact timings for each opcode (including I/O operations), multiple CPU contexts. disassembler is also included.

DiDasm is a small and fast disassembler, useful for Windows kernel developers. Advantages: - highly portable, has minimal runtime requirements (C runtime); - core libraries do not require any external components; - includes instructions emulator (diana_processor); - has stream oriented design; Supported platforms: i386, amd64 Supported instructions: x586/amd64/FPU/MMX/SSE/SSE2

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.

Java Decompiler, Disassembler and Bytecode debugger. Decompiler supports Java 5 (e.g. generics, for-each loops etc). Debugger allows user to step through each bytecode and view program state. Contains Swing GUI.

lib5600x is a library implementing Motorola DSP5600x disassembler. It's an ANSI C link library that should be useful for people writing debuggers, memory monitors etc for DSP5600x chips.

This is a general purpose machine code manipulation library for IA-32 and Intel 64 architectures. The library supports UNIX-like systems as well as Windows and is highly portable. The FCML library is free for commercial and non-commercial use as long as the terms of the LGPL license are met. Currently it supports such features as: - A one-line disassembler - A one-line assembler - An experimental multi-pass load-and-go assembler (Multi line!) - Support for the Intel and AT&T syntax - An instruction renderer - An instruction parser - Instructions represented as generic models - UNIX/GNU/Linux and Windows support - Portable - written entirely in C (no external dependencies) - C++ wrapper - Supported instruction sets: MMX, 3D-Now!, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AVX, AVX2, AES, TBM, BMI1, BMI2, HLE, ADX, CLMUL, RDRAND, RDSEED, FMA, FMA4, LWP, SVM, XOP, VMX, SMX, AVX-512 Source code moved to: https://github.com/swojtasiak/fcml-lib

Flasm is an assembler/disassembler for Flash actionscript bytecode. Using flasm, script authors may learn how actionscript compiler and Flash Player virtual machine work, and tweak the compiled bytecode in SWF files for performance.

Jennylab is a open project learning, examples and security material.

MEDDAC is the seeding point for designing a new approach to Operating System design itself. It is an Open Source project with roots in mainframe design and development the author began in 1979. Monitor Editor Disassembler Decompiler Assembler Compiler

Programming language designed to simplify the development of small and large-scale networked applications. PROSE includes an execution engine and language that compiles into platform-independent bytecode. Bytecode can also be assembled directly.

VirtuAL3101 provides a series of tools to develop effects using the AL3101 DSP from Alesis. It includes an assembler/disassembler, a simulator, an application generator with its graphical interface and various effects.

a6 (aka "asix") is a cross-platform 6502 (and other processor) table-based assembler, written in C++

asxa: Cross Assembler for NXP XA-51 Microcontrollers. Included is a monitor in XA assembly language with a disassembler a a debugger.

a powerful disassembler for x86