wxMEdit, Cross-platform Text/Hex Editor, Improved Version of MadEdit
Schematic circuit editor for VLSI and Mixed mode circuit simulation.
The allRound pocket sized CodeEditor.
Draw and Simulate Finite States Machines (FSM)
Tools and libraries for use with systemc and verilog
Verilog Finite State Machine (FSM) Code Generator
A Toolkit for Designing Computers
IPDBG are free tools to debug intellectual properties (IP cores).
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
An HDL alternative to PCB graphical schematic capture tools.