<s>
Address-range	B-General_Concept
registers	I-General_Concept
(	O
ARR	O
)	O
are	O
control	B-Operating_System
registers	I-Operating_System
of	O
the	O
Cyrix	B-General_Concept
6x86	I-General_Concept
,	O
6x86MX	B-General_Concept
and	O
MII	O
processors	O
that	O
are	O
used	O
as	O
a	O
control	O
mechanism	O
which	O
provides	O
system	O
software	O
with	O
control	O
of	O
how	O
accesses	O
to	O
memory	O
ranges	O
by	O
the	O
CPU	O
are	O
cached	O
,	O
similar	O
to	O
what	O
memory	B-General_Concept
type	I-General_Concept
range	I-General_Concept
registers	I-General_Concept
(	O
MTRRs	O
)	O
provide	O
on	O
other	O
implementations	O
of	O
the	O
x86	B-Operating_System
architecture	I-Operating_System
.	O
</s>
