3d_gpu/arch_comparison.mdwn

   1 # Architectural Comparisons
   2
   3 This table compares important factors for a decision in which ISA to use
   4 and support
   5
   6 [[!table  data="""
   7 Feature/Need   | RISC-V | MIPS    | OpenPOWER | OpenRISC |
   8 Open           | NO (1) | NO (2)  | NO (3)    | Yes      |
   9 Libre-friendly | NO (1) | unknown | Yes       | Yes      |
  10 Trademarked    | Yes    | Yes     | Yes       | No       |
  11 Extensible     | NO (4) | unknown | (5)       | Yes      |
  12 gcc            | Yes    | Yes     | Yes       | Yes      |
  13 llvm           | Yes    | Yes     | Yes       | Yes      |
  14 distros (deb)  | Yes    | Yes     | Yes       | No       |
  15 buildroot      | Yes    | Yes     | Yes       | Yes      |
  16 linux kernel   | Yes    | Yes     | Yes       | Yes      |
  17 """]]
  18
  19 * (1) too numerous reasons to count, for well over 4 years.
  20 * (2) efforts to be "open" have stalled, website non-functional
  21 * (3) OpenPower Foundation making a huge effort, really appreciated
  22 * (4) repeated in-good-faith requests for participation and inclusion in
  23   extending RISC-V have met with stone-cold silence for over 18 months,
  24   in direct violation of Trademark Law's clear-cut responsibilities.
  25 * (5) provisionally and in principle: yes.  however as of 2019jan21 this is
  26   yet to be tested and an agreement reached.