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.
A disassembler and a simulator for the MSP430 CPU. Both programs only read TI-TXT files. Licensed under the Simple Public License (SimPL) 2.0. For full license information, please read license.txt. Compiled executables are available for Windows and Mac OS X. Linux users will have to compile their own binaries. Instructions for compilation are included in README.txt.
A Qt-based GUI is available for sim430. Binaries only for OS X, for now. Source files can be found in src/qt folder.