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diff --git a/openpower/sv/SimpleV_rationale.mdwn b/openpower/sv/SimpleV_rationale.mdwn
index cf6851669b1aa983d39a68cc1c23cbfb55b815ea..735c6c4d019300ea7bf5b59da8ef09f9cc6b8e4f 100644 (file)
--- a/openpower/sv/SimpleV_rationale.mdwn
+++ b/openpower/sv/SimpleV_rationale.mdwn
@@ -114,4 +114,19 @@ candidates for further advancement are:
 * RISC-V, touted as "Open" but actually strictly controlled under
   Trademark License: too new to have adequate patent pool protection,
   as evidenced by multiple adopters having been hit by patent lawsuits.
-* 
+* MIPS, SPARC, ARC, and others, simply have no viable ecosystem.
+* Power ISA: protected by IBM's extensive patent portfolio for Members
+  of the OpenPOWER Foundation, covered by Trademarks, permitting
+  and encouraging contributions, and having software support for over
+  20 years.
+* ARM, not permitting Open Licensing, they survived in the early 90s
+  only by doing a deal with Samsung for a Royalty-free License in exchange
+  for GBP 3 million and legal protection under Samsung Research Division.
+  Several large Corporations (Apple most notably) have licensed the ISA
+  but not ARM designs, the barrier to entry is high and the ISA itself
+  protected from interference as a result.
+* x86, famous for a Court Ruling in 2004 where a Judge "banged heads
+  together" and ordered AMD and Intel to stop wasting his time,
+  make peace, and cross-license each other's patents, anyone wishing
+  to use the x86 ISA need only look at Transmeta, SiS, the Vortex x86,
+  and VIA EDEN processors, and see how they fared.