LEON-1 VHDL model - Functional SPARC compatible processor core integer unit. Runs on Altera, Mietec, Temic MG2, Xilinx. Developed for space missions. Implemented as a highly configurable, synthesisable GPL VHDL model.
E-Risc - Project to design and implement scaleable RISC microprocessor for embedded applications. All architecture and source code to be released under GNU General Public License, or a slightly modified version that includes hardware, not only software.
picoJava Core - A core is the central component of a microprocessor or controller chip. Chips using picoJava core are ideally suited for consumer electronic products running Java applications. By Sun Microsytems, Sun Community Source License.
CMOSexod.com - For advanced hobbyists: share free microprocessor and DSP IP cores written in Verilog or VHDL.
F-CPU Project - Freedom CPU Project for a free 64 bit CPU and related systems. Still in design mode, no HDL.
MMIXware: A RISC Computer for the Third Millennium - Knuth's new MMIX book, full text online at Springer Verlag, Inc.
MMIX, A RISC Computer for the New Millennium - Dr. Dobb's TechNetCast lecture by Donald Knuth: transcript, forum Q&A, audio and video downloads.
MMIX: a RISC computer for the third millennium - Donald E. Knuth's new 64-bit processor for the new volumes of his landmark series: 'The Art of Computer Programming'. But might MMIX become more than only a book example.
MMIX Page of Munich Professional School - Mixed German-English site at Munich University of Applied Sciences. MMIX extensions: MMIXAL LaTeX output, Win32 graphical output.
STM - 32-bit, 2-way superscalar RISC processor, designed in a HDL. Source downloads. This one is actually working.
TRON VLSI CPU - 32-bit microprocessor architecture developed to serve as the main hardware building block of the real-time TRON Hypernetwork (Highly Functional Distributed System: HFDS), which is the ultimate goal of the TRON Project.
Press: Sun Extends Community Source Licensing to Chip Architectures - Sun Microsystems announces: for research uses, it extends its new Community Source Licensing model to picoJava and SPARC architectures; the first time a company made major microprocessor intellectual property available via open licensing.
News: Deja.com: Free SPARC VHDL model available - Initial announcement of the GPLed LEON SPARC architecture.