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.
The moxie architecture reference and toolchain guide are both available through links on this site (see sidebar).
HDL source for the core is available on github.
The moxie architect and author of this blog is Anthony Green.