lilpM32 is a MIPS-like processor designed in Logisim, assembler program and documentation for them.
Complete assembler and fully functional instruction set with I/O and subroutines features allow to write full-blown complicated programs.
Numerikus is an attempt to build a set of numerical libraries written in C/C++, Fortran, Java and C# for single processor and multi-core processors. It wil have from basic functions to Linear Algebra solvers and ODE's and PDE's methods.