add SVP rewrite plan

diff --git a/openpower/sv/svp_rewrite/svp64.mdwn b/openpower/sv/svp_rewrite/svp64.mdwn
index ec654f687058d62a628689f438c904596a009a04..2f6b28d9fdaea0a8ca90624c9ea6fed3dbd0ff61 100644 (file)
--- a/openpower/sv/svp_rewrite/svp64.mdwn
+++ b/openpower/sv/svp_rewrite/svp64.mdwn
@@ -1,3 +1,7 @@
 # Rewrite of SVP64 for OpenPower ISA v3.1
 
+The plan is to create an encoding for SVP64, then to create an encoding for
+SVP48, then to reorganize them both to improve field overlap, reducing the
+amount of decoder hardware necessary.
+
 TBD
\ No newline at end of file