70% Savings on Blackfin Processor Development Tools
For a limited time, you can purchase a Blackfin development tools bundle at a 70% savings. The bundle includes VisualDSP++ Development Software for Blackfin and the High Performance USB-based Emulator. Click here for purchasing details.

Telelogic Modeling Community: Whitepapers - UML, C/C++, OO Programming

freeware    

GNUSH - GNU Tool for Renesas Targets
The KPIT Cummins GNU tools are packaged in ready to use Windows & Linux Installers along with Release Notes, Tutorials and FAQs. Windows users can use the tools with Renesas' High-performance Embedded Workshop (HEW) IDE and other Renesas tools (such as the HDI Debugging Interface).
preview: http://www.kpitgnutools.com  

demo    

IAR Development Kits
IAR Systems provides completely integrated kits for development of embedded applications based on ARM, 8051, MSP430 and R8C/M16C/M32C: ARM kits 8051 kits MSP430 kits R8C/M16C/M32C kits Each kit contains a development board, software development tools with sample projects and a hardware debug probe or emulator.
preview: http://www.iar.com  

freeware    

The Macroassembler AS
AS is a portable macro cross assembler for a variety of microprocessors and -controllers. Though it is mainly targeted at embedded processors and single-board computers, you also find CPU families in the target list that are used in workstations and PCs.
preview: http://john.ccac.rwth-aachen.de:8000