(no commit message)

diff --git a/openpower/sv/16_bit_compressed.mdwn b/openpower/sv/16_bit_compressed.mdwn
index d4197e57e30b20781c61a2168870affac529c955..0731e0c997d2bee3342421257c387d296f38476b 100644 (file)
--- a/openpower/sv/16_bit_compressed.mdwn
+++ b/openpower/sv/16_bit_compressed.mdwn
@@ -530,6 +530,8 @@ Note here that elwidth overrides (SV Prefix) can be used to select FP16/32/64
     | 1101 | BA2 | | 001.1 | 0 BA | BB  | M | crorc
     | 1110 | BA2 | | 001.1 | 0 BA | BB  | M | cror
 
+TODO: note that whilst M=0 allows a return to v3.0B, no information exists which allows deciding whether it is more appropriate to enter v3.0B-then-back-to-16bit.  this requires statistical analysis.
+
 Notes
 
 10 bit mode:
@@ -570,6 +572,8 @@ space (when RA==0)
     | 1111 | 1 | | 001.1 | 0 01 |  RA  | M | mfctr
     | 1111 | 1 | | 001.1 | 0 11 |  RA  | M | mfcr
 
+TODO: note that whilst M=0 allows a return to v3.0B, no information exists which allows deciding whether it is more appropriate to enter v3.0B-then-back-to-16bit.  this requires statistical analysis.
+
 ### Unallocated
 
     | 0123 | 4 | | 567.8 | 9 ab | cde  | f |