<s>
The	O
BT	O
x86	B-Language
assembly	I-Language
language	I-Language
instruction	O
stands	O
for	O
Bit	B-Device
Test	I-Device
and	O
was	O
added	O
to	O
the	O
x86	B-Device
instruction	I-Device
set	I-Device
with	O
the	O
80386	B-General_Concept
processor	O
.	O
</s>
<s>
BT	O
copies	O
a	O
bit	O
from	O
a	O
given	O
register	B-General_Concept
to	O
the	O
carry	B-Algorithm
flag	I-Algorithm
.	O
</s>
<s>
BTS	O
(	O
Bit	B-Device
Test	I-Device
and	O
Set	O
)	O
operates	O
the	O
same	O
,	O
but	O
also	O
sets	O
the	O
bit	O
in	O
the	O
register	B-General_Concept
,	O
while	O
BTR	O
(	O
Bit	B-Device
Test	I-Device
and	O
Reset	O
)	O
resets	O
it	O
,	O
and	O
BTC	O
(	O
Bit	B-Device
Test	I-Device
and	O
Complement	O
)	O
flips	O
it	O
.	O
</s>
