[[!table data="""
Feature/Need | RISC-V | MIPS | OpenPOWER | OpenRISC |
-Open | NO (1) | NO (2) | maybe (3) | Yes |
+Open | NO (1) | NO (2) | WIP (3) | Yes |
Libre-friendly | NO (1) | unknown | Yes | Yes |
Trademarked | Yes | Yes | Yes | No |
-Extensible | NO (4) | unknown | (5) | Yes |
+Extensible | NO (4) | unknown | Potentially (5) | Yes |
gcc | Yes | Yes | Yes | Yes |
llvm | Yes | Yes | Yes | Yes |
llvm upstream | Yes | Yes | Yes | No |
V8 node.js/chromium | no JIT | Yes | Yes | No |
PyPy | No | No | Yes | No |
Mono (.net) | No? | 32-bit | Yes | No |
+Spidermonkey (Firefox JS) | no JIT | Yes (JIT Unsupported) | no JIT | No |
"""]]
* (1) too numerous reasons to count, for well over 4 years.