Legible Assembler

jbytecode is a Java bytecode disassembler/assembler written in Python. Dissasembly code is aligned with Java bytecodes in the class file so modification and re-assembly is always possible, even when class is obfuscated. Platforms: Windows, Mac, Linux

This project aims to implement an LC2/LC3 assembler and simulator for the Linux and Windows platforms. Platforms: Windows, Mac, Linux

Luxor is a new system programming language, designed to use instead of assembler, C/C++, or other system programming languages. Platforms: Windows, Mac, Linux

Newster is a binary news retrieval tool written in java. Platforms: Windows, Mac, Linux

A complete Parallax Propeller debugger/simulator for development of assembler code, with built-in editor and compiler. In runs under Java v1.5 or better. Platforms: Windows, Mac, Linux

pyz80 is a z80 cross-assembler written entirely in Python. It accepts text files with the syntax of the Sam Coupe's popular COMET assembler, and outputs a disk image suitable for loading in SimCoupe or transferring to floppy disk for use with a real Sam. Platforms: Windows, Mac, Linux

An open source PowerPC CPU simulator and assembler, with associated documentation and tutorials, to facilitate the teaching of modern RISC assembly language programming. Written in java for portability. Platforms: Windows, Mac, Linux

Tori assim is an assembler for the educational Txori assembly language and simulator for the bird processor. It's being developed as an open source clone for the closed source and windows only BIRD. Platforms: Windows, Mac, Linux

VCAKE is a genetic sequence assembler capable of assembling millions of small nucleotide reads even in the presence of sequencing error. This software is currently geared towards de novo assembly of Illumina's Solexa Sequencing data. Platforms: Windows, Mac, Linux

VTD-XML is the next generation XML parser/indexer/editor/slicer/assembler/xpath-engine that goes beyond DOM, SAX and PULL in performance, memory usage, and ease of use. Platforms: Windows, Mac, Linux

A set of tools for working with the ZIL interactive fiction language, including a compiler, assembler, disassembler, and game library. Platforms: Windows, Mac, Linux

The MATLAB compiler toolbox builds native libraries (MEX-functions) and executables (applications) for different platforms. The compiler scripts "mex" and "mcc" offer a user-friendly interface for compiling and linking M, C, C++, Fortran and assembler files. This package adds automatic file... Platforms: Matlab

smali/baksmali is an assembler/disassembler for the dex format used by dalvik, Android's Java VM implementation. The syntax is loosely based on Jasmin's/dedexer's syntax, and supports the full functionality of the dex format (annotations, debug info, line info, etc.) The names "smali" and... Platforms: Mac

AsmLib is a general purpose library for console or terminal programs. Everything is written in assembler and is intended for assembler programmers. Function groups include display handlers, keyboard, mouse, file, shell, sort, process control, etc. Platforms: *nix

JWasm is a free MASM-compatible assembler with these features: native support for output formats Intel OMF, MS Coff (32- and 64-bit), Elf (32-and 64-bit), Bin and DOS MZ. precompiled JWasm binaries are available for DOS, Windows and Linux. For OS/2 and FreeBSD, makefiles are supplied.... Platforms: *nix

AsmXml is a very fast XML parser and decoder for x86 platforms (Windows, Linux, BSD and Mac OS X). It achieves high speed by using the following features: Written in pure assembler Optimized memory access More than a parser: parsing and decoding at the same time (decoding means that... Platforms: *nix

PPDD is a device driver for Linux. PPDD allows you to create a device which looks like a disc partition. You can then create an ext2, ext3 or reiserfs filesystem or even a swap partition on this device. The data is in reality written to and read from a real disc - either a partition or a file on... Platforms: *nix

Cybiko(tm) (http://www.cybiko.com/) is a hand-held computer capable of wireless, high frequency, digital connections to other Cybiko computers. The Cybiko SDK (http://www.cybiko.com/devsarea/) features an extensive set of tools, ranging from the high-performance C compiler to the easy to use...

Ultimate code to HTML converter. Support both 7 languages: VB, C++, C#, Assembler, SQL, Java, Delphi. Platforms: Windows

Advanced hexadecimal editor. Few important programs features: 6 color schemes to interpret bytes visually. Every of them tryies to fit some functionality (for example text analyzing) and user preferences Unlimited undo Access to logical disks under Windows NT/2000/XP Disassembler Import and... Platforms: Windows