<s>
CrossBridge	B-Language
is	O
an	O
open-source	O
toolset	O
developed	O
by	O
Adobe	O
Systems	O
,	O
that	O
cross-compiles	B-Application
C	B-Language
and	O
C++	B-Language
code	I-Language
to	O
run	O
in	O
Adobe	B-Operating_System
Flash	I-Operating_System
Player	I-Operating_System
or	O
Adobe	B-Operating_System
AIR	I-Operating_System
.	O
</s>
<s>
Projects	O
compiled	O
with	O
CrossBridge	B-Language
run	O
up	O
to	O
10	O
times	O
faster	O
than	O
ActionScript	O
3	O
projects	O
.	O
</s>
<s>
CrossBridge	B-Language
was	O
also	O
known	O
as	O
"	O
Alchemy	B-Language
"	O
and	O
the	O
"	O
Flash	O
Runtime	O
C++	B-Language
Compiler	O
"	O
,	O
or	O
"	O
FlasCC	B-Language
"	O
.	O
</s>
<s>
CrossBridge	B-Language
uses	O
high-performance	O
memory-access	B-General_Concept
opcodes	B-Language
in	O
the	O
Flash	B-Operating_System
Player	I-Operating_System
(	O
known	O
as	O
"	O
Domain	O
Memory	O
"	O
)	O
to	O
work	O
with	O
in-memory	O
data	O
quickly	O
.	O
</s>
<s>
CrossBridge	B-Language
uses	O
the	O
LLVM	B-Application
and	O
GCC	B-Application
as	O
compiler	O
backends	O
,	O
in	O
order	O
to	O
compile	O
C++	B-Language
code	I-Language
,	O
optimize	O
it	O
,	O
and	O
transform	O
it	O
to	O
run	O
within	O
AVM2	B-Language
(	O
ActionScript	B-Language
Virtual	I-Language
Machine	I-Language
2	I-Language
)	O
.	O
</s>
<s>
Programs	O
built	O
with	O
CrossBridge	B-Language
are	O
up	O
to	O
10	O
times	O
faster	O
than	O
normal	O
ActionScript	O
code	O
,	O
but	O
up	O
to	O
2×	O
to	O
10×	O
slower	O
than	O
native	O
C++	B-Language
code	I-Language
.	O
</s>
<s>
CrossBridge	B-Language
can	O
generate	O
Flash	B-Operating_System
Player	I-Operating_System
movies	O
(	O
.swf	O
files	O
)	O
,	O
or	O
Flash	O
Libraries	O
(	O
.swc	B-Operating_System
files	O
)	O
,	O
which	O
can	O
then	O
be	O
used	O
by	O
larger	O
projects	O
written	O
in	O
ActionScript	O
3	O
and	O
compiled	O
using	O
the	O
free	O
Apache	B-Operating_System
Flex	I-Operating_System
SDK	O
(	O
formerly	O
the	O
Adobe	B-Operating_System
Flex	I-Operating_System
SDK	O
)	O
.	O
</s>
<s>
CrossBridge	B-Language
also	O
uses	O
the	O
GPU-based	O
3D	O
rendering	O
acceleration	O
present	O
in	O
Flash	B-Operating_System
Player	I-Operating_System
11	O
(	O
known	O
as	O
Stage3D	B-Operating_System
)	O
.	O
</s>
<s>
Using	O
CrossBridge	B-Language
,	O
Adobe	O
ported	O
OpenGL	B-Application
for	O
use	O
within	O
Flash	B-Operating_System
Player	I-Operating_System
Stage3D	B-Operating_System
and	O
released	O
it	O
as	O
an	O
open-source	O
project	O
in	O
2012	O
.	O
</s>
<s>
The	O
Lua	B-Language
programming	I-Language
language	I-Language
(	O
version	O
5.1	O
)	O
was	O
also	O
ported	O
to	O
run	O
in	O
Flash	B-Operating_System
Player	I-Operating_System
using	O
CrossBridge	B-Language
,	O
and	O
released	O
on	O
Google	O
Code	O
.	O
</s>
<s>
CrossBridge-compiled	O
projects	O
also	O
enabled	O
running	O
client-side	O
digital	B-General_Concept
signal	I-General_Concept
processing	I-General_Concept
in	O
real-time	O
,	O
including	O
fast	O
Fourier	O
transform	O
and	O
Mexican	O
hat	O
wavelet	B-Algorithm
transform	I-Algorithm
.	O
</s>
<s>
In	O
2008	O
,	O
CrossBridge	B-Language
was	O
released	O
by	O
Adobe	O
as	O
"	O
Project	O
Alchemy	B-Language
"	O
,	O
on	O
the	O
Adobe	O
Labs	O
website	O
.	O
</s>
<s>
It	O
enabled	O
compilation	O
of	O
specially	O
modified	O
C++	B-Language
projects	O
to	O
SWF	O
,	O
using	O
the	O
LLVM	B-Application
and	O
GCC	B-Application
compilers	I-Application
.	O
</s>
<s>
In	O
2012	O
,	O
in	O
an	O
attempt	O
to	O
monetize	O
Flash	B-Operating_System
Player	I-Operating_System
,	O
Adobe	O
restricted	O
use	O
of	O
the	O
Stage3D	B-Operating_System
and	O
Domain	O
Memory	O
features	O
of	O
Flash	B-Operating_System
Player	I-Operating_System
under	O
the	O
"	O
Premium	O
Features	O
"	O
brand	O
.	O
</s>
<s>
Project	O
Alchemy	B-Language
was	O
commercially	O
released	O
as	O
the	O
Flash	O
Runtime	O
C++	B-Language
Compiler	O
.	O
</s>
<s>
In	O
2013	O
,	O
Adobe	O
open-sourced	O
the	O
Flash	O
Runtime	O
C++	B-Language
Compiler	O
as	O
CrossBridge	B-Language
,	O
and	O
released	O
it	O
on	O
the	O
GitHub	B-Application
code	O
hosting	O
website	O
.	O
</s>
