Added English Language description for stbx instruction

diff --git a/openpower/isa/fixedstore.mdwn b/openpower/isa/fixedstore.mdwn
index f65edd0e54945492e0b3e83b31912cecdbe0582b..44d4d14741505c2e24896917bc3137c7d52cb5b9 100644 (file)
--- a/openpower/isa/fixedstore.mdwn
+++ b/openpower/isa/fixedstore.mdwn
@@ -48,6 +48,12 @@ Pseudo-code:
     EA <- b + (RB)
     MEM(EA, 1) <- (RS)[XLEN-8:XLEN-1]
 
+Description:
+
+Let the effective address (EA) be the sum
+(RA|0)+ (RB). RS [56:63] are stored into the byte in stor-
+age addressed by EA.
+
 Special Registers Altered:
 
     None