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diff --git a/openpower/sv/bitmanip.mdwn b/openpower/sv/bitmanip.mdwn
index d5d75ef257cb1caed4453d6e0b53ea976ad00d21..ab84650132fe600e462f27c94c57a1b6061a3ead 100644 (file)
--- a/openpower/sv/bitmanip.mdwn
+++ b/openpower/sv/bitmanip.mdwn
@@ -207,8 +207,9 @@ a 4 operand variant which becomes more along the lines of an FPGA:
 | NN | RT | RA  | RB  | RC  | mode  01 |1 |
 
     for i in range(64):
-        idx = RT[i] << 2 | RA[i] << 1 | RB[i]
-        RT[i] = (RC & (1<<idx)) != 0
+        j = (i//8)*8 # 0,8,16,24,..,56
+        lookup = RC[j:j+8]
+        RT[i] = lut3(lookup, RT[i], RA[i], RB[i])
 
 mode (3 bit) may be used to do inversion of ordering, similar to carryless mul,
 3 modes.