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[libreriscv.git] / openpower / sv / bitmanip.mdwn

diff --git a/openpower/sv/bitmanip.mdwn b/openpower/sv/bitmanip.mdwn
index e2803b332287b585e2f86bcf40a97bbb15ddd9cf..269e9bff3bc28b5ef8bb603579068b4094f033fe 100644 (file)
--- a/openpower/sv/bitmanip.mdwn
+++ b/openpower/sv/bitmanip.mdwn
@@ -316,6 +316,12 @@ uint_xlen_t bmextrev(RA, RB, sh)
 | NN | RT | RA  | RB  | sh  | 0   111 |Rc| bmrevi |
 
 
+# grevlut
+
+    lut2(imm, a, b):
+        idx = b << 1 | a
+        return imm[idx] # idx by LSB0 order
+
 
 # grev