(no commit message)

diff --git a/openpower/sv/ldst.mdwn b/openpower/sv/ldst.mdwn
index a196961ea173e0a0ce2bff4d624ffbed46904931..5994fc46d2b849f6d0e1787ea0a19152dc006018 100644 (file)
--- a/openpower/sv/ldst.mdwn
+++ b/openpower/sv/ldst.mdwn
@@ -87,6 +87,14 @@ with the pseudocode below, the immediate can be used to give unit stride or elem
         if (RAupdate.isvec) u++;
         if (RT.isvec) j++;
 
+    # reverses the bitorder up to "width" bits
+    def bitrev(val, width):
+      result = 0
+      for _ in range(width):
+        result = (result << 1) | (val & 1)
+        val >>= 1
+      return result
+
 Indexed LD is:
  
     # format: ldop RT, RA, RB