<s>
A	O
shift	B-General_Concept
register	I-General_Concept
lookup	I-General_Concept
table	I-General_Concept
,	O
also	O
shift	B-General_Concept
register	I-General_Concept
LUT	O
or	O
SRL	O
,	O
refers	O
to	O
a	O
component	O
in	O
digital	O
circuitry	O
.	O
</s>
<s>
It	O
is	O
essentially	O
a	O
shift	B-General_Concept
register	I-General_Concept
of	O
variable	O
length	O
.	O
</s>
<s>
The	O
SRL	O
component	O
is	O
used	O
in	O
FPGA	B-Architecture
devices	O
.	O
</s>
