<s>
FCEUX	B-Application
is	O
an	O
open-source	B-Application
Nintendo	O
Entertainment	O
System	O
and	O
Family	B-Device
Computer	I-Device
Disk	I-Device
System	I-Device
emulator	B-Application
.	O
</s>
<s>
It	O
is	O
a	O
merger	O
of	O
various	O
forks	B-Application
of	O
FCE	B-Application
Ultra	I-Application
.	O
</s>
<s>
The	O
Win32	O
and	O
SDL	B-Operating_System
versions	O
of	O
FCEUX	B-Application
do	O
not	O
currently	O
support	O
TCP/IP	O
network	O
play	O
functionality	O
,	O
as	O
they	O
do	O
not	O
support	O
controllers	O
.	O
</s>
<s>
An	O
integrated	O
GTK2	B-Application
GUI	O
was	O
added	O
to	O
the	O
SDL	B-Operating_System
port	O
of	O
FCEUX	B-Application
in	O
version	O
2.1.3	O
.	O
</s>
<s>
This	O
GTK	B-Application
GUI	O
deprecated	O
the	O
previous	O
python	O
frontend	O
,	O
gfceux	O
.	O
</s>
<s>
As	O
of	O
version	O
2.3.0	O
,	O
the	O
SDL	B-Operating_System
port	O
migrated	O
from	O
GTK2	B-Application
to	O
a	O
cross	B-Operating_System
platform	I-Operating_System
Qt5	O
GUI	O
front	O
end	O
.	O
</s>
<s>
The	O
2.4.0	O
version	O
was	O
the	O
first	O
release	O
in	O
which	O
the	O
SDL	B-Operating_System
port	O
is	O
runnable	O
on	O
Windows	B-Application
,	O
Linux	B-Application
,	O
and	O
macOS	B-Application
operating	O
systems	O
.	O
</s>
<s>
It	O
has	O
been	O
ported	O
to	O
DOS	B-Device
,	O
Linux	B-Application
(	O
with	O
either	O
SVGAlib	B-Application
or	O
X	B-Operating_System
)	O
,	O
macOS	B-Application
(	O
its	O
SDL	B-Operating_System
port	O
should	O
also	O
work	O
on	O
other	O
Unix-like	B-Operating_System
platforms	O
such	O
as	O
FreeBSD	B-Operating_System
,	O
Solaris	B-Application
and	O
IRIX	B-Operating_System
)	O
,	O
Windows	B-Application
,	O
GP2X	B-Device
,	O
PlayStation	B-Operating_System
Portable	I-Operating_System
,	O
the	O
Nintendo	B-Application
GameCube	I-Application
,	O
Wii	B-Operating_System
,	O
PlayStation	B-Device
2	I-Device
and	O
Pepper	B-Device
Pad	I-Device
.	O
</s>
<s>
FCE	B-Application
Ultra	I-Application
was	O
forked	O
from	O
FCE	O
(	O
Family	O
Computer	B-Application
Emulator	I-Application
)	O
.	O
</s>
<s>
After	O
that	O
,	O
development	O
appeared	O
to	O
stop	O
and	O
the	O
homepage	O
and	O
forums	O
for	O
the	O
emulator	B-Application
were	O
taken	O
down	O
.	O
</s>
<s>
In	O
the	O
absence	O
of	O
official	O
development	O
,	O
many	O
forks	B-Application
of	O
FCE	B-Application
Ultra	I-Application
were	O
created	O
.	O
</s>
<s>
Most	O
notable	O
are	O
FCEU-MM	O
,	O
which	O
supports	O
many	O
new	O
and	O
unusual	O
mappers	B-General_Concept
,	O
FCEU	B-Application
Rerecording	O
,	O
which	O
incorporates	O
many	O
useful	O
features	O
for	O
tool-assisted	O
speedruns	O
,	O
and	O
FCEUXD	O
SP	O
,	O
which	O
adds	O
a	O
number	O
of	O
debugging	O
utilities	O
.	O
</s>
<s>
In	O
March	O
2006	O
it	O
was	O
reactivated	O
and	O
shortly	O
thereafter	O
a	O
project	O
was	O
initiated	O
to	O
combine	O
all	O
the	O
forks	B-Application
into	O
one	O
new	O
application	O
called	O
FCEUX	B-Application
,	O
which	O
attracted	O
collaboration	O
from	O
many	O
authors	O
of	O
the	O
various	O
forks	B-Application
of	O
FCE	B-Application
Ultra	I-Application
.	O
</s>
<s>
FCEUX	B-Application
was	O
first	O
publicly	O
released	O
on	O
August	O
2	O
,	O
2008	O
.	O
</s>
<s>
This	O
fork	B-Application
of	O
the	O
emulator	B-Application
has	O
continued	O
steady	O
development	O
since	O
then	O
,	O
allowing	O
the	O
other	O
forks	B-Application
to	O
become	O
deprecated	O
,	O
and	O
now	O
has	O
features	O
the	O
original	O
FCE	B-Application
Ultra	I-Application
does	O
not	O
,	O
such	O
as	O
native	O
movie	O
recording	O
support	O
and	O
the	O
ability	O
to	O
extend	O
,	O
enhance	O
,	O
or	O
alter	O
gameplay	O
with	O
Lua	B-Language
scripts	I-Language
.	O
</s>
<s>
FCE	B-Application
Ultra	I-Application
was	O
written	O
by	O
Xodnizel	O
.	O
</s>
<s>
The	O
FCEUX	B-Application
project	O
was	O
initiated	O
by	O
Zeromus	O
and	O
Sebastian	O
Porst	O
.	O
</s>
<s>
Brandon	O
Widdler	O
of	O
Digital	O
Trends	O
considers	O
FCEUX	B-Application
the	O
go	O
to	O
emulator	B-Application
for	O
the	O
NES	O
because	O
of	O
its	O
multiple	O
advanced	O
features	O
including	O
debugging	O
,	O
ROM	O
hacking	O
,	O
and	O
video	O
recording	O
.	O
</s>
