(no commit message)

diff --git a/openpower/sv/po9_encoding.mdwn b/openpower/sv/po9_encoding.mdwn
index 21d310dcbe47f1d1d983efa7d88e603824d4f94d..f48474d8729251f934232d8d2ee29d7aed9547e4 100644 (file)
--- a/openpower/sv/po9_encoding.mdwn
+++ b/openpower/sv/po9_encoding.mdwn
@@ -60,13 +60,13 @@ the Post-Increment Mode of LD/ST-Update and Vectorised Branch-Conditional.*
 
 Encoding spaces and their potential are illustrated:
 
-| Encoding | Available bits | Scalar | Vectoriseable | SVP64Single  |
-|----------|----------------|--------|---------------|--------------|
-|EXT000-063| 32             | yes    | yes           |yes           |
-|EXT100-163| 64             | yes    | no            |no            |
-|RESERVED2 | 57             | N/A    |not applicable |not applicable|
-|EXT232-263| 32             | yes    | yes           |yes           |
-|RESERVED1 | 32             | N/A    | no            |no            |
+| Encoding |Available bits|Scalar|Vectoriseable | SVP64Single  | PO1-Prefixable |
+|----------|--------------|------|--------------|--------------|----------------|
+|EXT000-063| 32           | yes  | yes          |yes           |yes             |
+|EXT100-163| 64           | yes  | no           |no            |not twice       |
+|RESERVED2 | 57           | N/A  |not applicable|not applicable|not applicable  |
+|EXT232-263| 32           | yes  | yes          |yes           |no              |
+|RESERVED1 | 32           | N/A  | no           |no            |no              |
 
 Notes:
 
@@ -75,6 +75,8 @@ Notes:
   on top of an SVP64 prefix which is 32-bit on top of a Defined Word
   and the complexity at the Decoder becomes too great for High
   Performance Multi-Issue systems.
+* EXT100-163 instructions (PO1-Prefixed) are also prohibited from being
+  double-PO1-prefixed (not twice prefixed)
 * RESERVED2 presently remains unallocated as of yet and therefore its
   potential is not yet defined (Not Applicable).
 * RESERVED1 is also unallocated at present, but it is known in advance