This blog is about the development of the moxie processor core, an open source soft-core processor, and related tooling.
Moxie is a general purpose bi-endian load-store processor, with sixteen 32-bit general purpose registers and a comprehensive ISA consisting of two-operand variable width instructions. There are moxie implementations that run on both Altera and Xilinx FPGA architectures, a number of simulator ports (including QEMU), and a complete GNU toolchain for C/C++ development.
HDL source for the core is available on github.
The moxie architect and author of this blog is Anthony Green.