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.
This is a port of the ebe programming environment to QT.
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.
SIMD macro assembler unified for ARM, MIPS, PPC and x86
UniSIMD assembler is a high-level C/C++ macro assembler framework unified across
ARM, MIPS, POWER and x86 architectures. It establishes a subset of both BASE and
SIMD instruction sets with clearly defined common API, so that application logic
can be written and maintained in one place without code replication.
The assembler itself isn't a separate tool, but rather a collection of C/C++
header files, which applications need to include directly in order to use.
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