wxMEdit, Cross-platform Text/Hex Editor, Improved Version of MadEdit
Schematic circuit editor for VLSI and Mixed mode circuit simulation.
A New Programming Language for FPGA Projects
Tools and libraries for use with systemc and verilog
Verilog Finite State Machine (FSM) Code Generator
A Toolkit for Designing Computers
A free cross-platform editor for the DRAKON visual language.
IPDBG are free tools to debug intellectual properties (IP cores).
3D .NET engine for Windows, Linux, Mac
Electronic design and programming tools suite like Eagle, MpLab
GHDL - a VHDL simulator
Powerfull pre-processor
Caneda (Circuits and Networks EDA) is an open source EDA software.
A graphical Finite State Machine (FSM) designer.
Library of Approximate Adders
Demo of Simulink to C++ C or HDL FGA for HFT potential