nMicrocoder is an ncurses EDA tool to write microcode. Basically, it is a stripped down spreadsheet program that lets you fill a table with "0", "1", and "-", and gives you compile-ready verilog code in return. It was written as an alternative to full spreadsheet programs. It is known to run on Linux, IRIX, and Solaris, unless ncurses 5.3 is installed.
JTAGTest is an IEEE 1149.1 JTAG Boundary scan tester for embedded designers, production houses, and service companies. It provides a significant aid for PCB debugging, prototyping, testing, and repairing. Using an IEEE 1149.1 (JTAG) boundary-scan, the device pin signals or internal signals can be monitored in real-time without interfering with normal device operation, and you can change pin state manually. It runs under Wine on 32-bit Linux distributions using special Linux support libraries, which are included in the distribution.
TTA-based Co-design Environment (TCE) is a toolset that provides a complete co-design flow from C programs down to synthesizable VHDL and parallel program binaries. Processor customization points include the register files, function units, supported operations, and the interconnection network.