<s>
OpenSPARC	B-Device
is	O
an	O
open-source	O
hardware	O
project	O
started	O
in	O
December	O
2005	O
.	O
</s>
<s>
The	O
initial	O
contribution	O
to	O
the	O
project	O
was	O
Sun	O
Microsystems	O
 '	O
register-transfer	O
level	O
(	O
RTL	O
)	O
Verilog	B-Language
code	O
for	O
a	O
full	O
64-bit	B-Device
,	O
32-thread	O
microprocessor	B-Architecture
,	O
the	O
UltraSPARC	B-General_Concept
T1	I-General_Concept
processor	O
.	O
</s>
<s>
On	O
March	O
21	O
,	O
2006	O
,	O
Sun	O
released	O
the	O
source	O
code	O
to	O
the	O
T1	O
IP	B-Architecture
core	I-Architecture
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
v2	O
.	O
</s>
<s>
The	O
full	O
OpenSPARC	B-Device
T1	O
system	O
consists	O
of	O
8	O
cores	O
,	O
each	O
one	O
capable	O
of	O
executing	O
four	O
threads	B-Operating_System
concurrently	O
,	O
for	O
a	O
total	O
of	O
32	O
threads	B-Operating_System
.	O
</s>
<s>
On	O
December	O
11	O
,	O
2007	O
,	O
Sun	O
also	O
made	O
the	O
UltraSPARC	B-Device
T2	I-Device
processor	O
's	O
RTL	O
available	O
via	O
the	O
OpenSPARC	B-Device
project	O
.	O
</s>
<s>
It	O
was	O
also	O
released	O
under	O
the	O
GNU	B-License
General	I-License
public	I-License
license	I-License
v2	O
.	O
</s>
<s>
OpenSPARC	B-Device
T2	O
is	O
8	O
cores	O
,	O
16	O
pipelines	O
with	O
64	O
threads	B-Operating_System
.	O
</s>
