| Open source support for patent-free MIPS cores |
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Random_bits
- the patent-free patch
for GCC 3.3.3 inhibits generation of
patented MIPS instructions allowing the building of patent-free cross-compiler
toolchains.
- a proof-of-concept toolchain builder and binary toolchain (EB) based on
the above patch are available from the
download page.
- the
libpatfree
kernel patch/add-on
from the RTL8181 project enables
compilation of Linux kernels for patent-free
MIPS clones (only R3K-ish big endian clones for the current version)
by replacing patented instructions with slightly less optimal patent-free
assembly sequences.
The terms MIPS Clone and MIPS Core are used here to indicate a generic family of RISC cores fully or partly compliant with the Stanford MIPS specifications.
MIPS is a registered trademark of MIPS Technologies, Inc., who are not affiliated with this project or its authors.
"We demand rigidly defined areas of doubt and uncertainty" -DNA