# OpenPOWER
In the late 1980s [[!wikipedia IBM]] developed a POWER family of processors.
-This evolved to a specification known as the Power ISA. In 2019 IBM made the Power ISA [[!wikipedia Open_source]] to be looked after by the existing [[!wikipedia OpenPOWER_Foundation]]. Here is a longer history of [[!wikipedia IBM_POWER_microprocessors]].
+This evolved to a specification known as the OpenPOWER ISA. In 2019 IBM made the OpenPOWER ISA [[!wikipedia Open_source]], to be looked after by the existing [[!wikipedia OpenPOWER_Foundation]]. Here is a longer history of [[!wikipedia IBM_POWER_microprocessors]]. These IBM proprietary processors
+happen to implement what is now known as the OpenPOWER ISA. The names
+POWER8, POWER9, POWER10 etc. are product designations equivalent to Intel
+i5, i7, i9 etc. and are frequently conflated with versions of the OpenPOWER ISA (v2.08, v3.0, v3.1).
-Libre-SOC is basing its [[Simple-V Vectorisation|sv]] CPU extensions on OpenPOWER because it wants to be able to specify a machine that can be completely trusted, and because OpenPOWER is designed for high performance.
+Libre-SOC is basing its [[Simple-V Vectorisation|sv]] CPU extensions on OpenPOWER because it wants to be able to specify a machine that can be completely trusted, and because OpenPOWER, thanks to IBM's involvement,
+is designed for high performance.
+
+See wikipedia page
+https://en.m.wikipedia.org/wiki/Power_ISA
# Evaluation
EULA released! looks good.
+<https://openpowerfoundation.org/final-draft-of-the-power-isa-eula-released/>
-Links
+# Links
* OpenPOWER Membership
<https://openpowerfoundation.org/membership/how-to-join/membership-kit-9-27-16-4/>
* Opcode 4 Signal Processing (SPE)
* Opcode 4 Vectors or Opcode 60 VSX (600+ additional instructions)
* Avoidable legacy opcodes
+* SIMD. it's awful.
# SimpleV
projects / libreriscv.git / blobdiff