Added English Language description for stdup instruction

diff --git a/openpower/isa/pifixedstore.mdwn b/openpower/isa/pifixedstore.mdwn
index 2a3160da091b65d090bada2c7a05306ea9c952c3..c61f9bc1176769769d5756f859b4579fc74ed623 100644 (file)
--- a/openpower/isa/pifixedstore.mdwn
+++ b/openpower/isa/pifixedstore.mdwn
@@ -174,6 +174,16 @@ Pseudo-code:
     MEM(ea, 8) <- (RS)
     RA <- EA
 
+Description:
+
+    Let the effective address (EA) be the sum
+    (RA)+ (DS||0b00). (RS) is stored into the doubleword in
+    storage addressed by EA.
+
+    EA is placed into register RA.
+
+    If RA=0, the instruction form is invalid.
+
 Special Registers Altered:
 
     None