<s>
Mupen64Plus	B-Application
,	O
formerly	O
named	O
Mupen64-64bit	O
and	O
Mupen64-amd64	O
,	O
is	O
a	O
free	B-License
and	I-License
open-source	I-License
,	O
cross-platform	B-Operating_System
Nintendo	B-Operating_System
64	I-Operating_System
emulator	B-Application
,	O
written	O
in	O
the	O
programming	O
languages	O
C	B-Language
and	O
C++	B-Language
.	O
</s>
<s>
It	O
allows	O
users	O
to	O
play	O
Nintendo	B-Operating_System
64	I-Operating_System
games	O
on	O
a	O
computer	O
by	O
reading	O
ROM	B-General_Concept
images	I-General_Concept
,	O
either	O
dumped	O
from	O
the	O
read-only	O
memory	O
of	O
a	O
Nintendo	B-Operating_System
64	I-Operating_System
cartridge	O
or	O
created	O
directly	O
on	O
the	O
computer	O
as	O
homebrew	B-Application
.	O
</s>
<s>
Mupen64	B-Application
,	O
the	O
forerunner	O
to	O
Mupen64Plus	B-Application
,	O
was	O
released	O
December	O
10	O
,	O
2001	O
by	O
Hacktarux	O
.	O
</s>
<s>
Mupen64	B-Application
was	O
designed	O
to	O
be	O
cross-platform	B-Operating_System
,	O
the	O
first	O
release	O
running	O
on	O
both	O
Linux	B-Application
and	O
Windows	B-Application
operating	I-Application
systems	I-Application
.	O
</s>
<s>
As	O
the	O
emulator	B-Application
progressed	O
,	O
support	O
was	O
added	O
for	O
FreeBSD	B-Operating_System
,	O
AROS	B-Application
,	O
and	O
OS	B-Operating_System
X	I-Operating_System
,	O
but	O
these	O
ports	O
were	O
not	O
maintained	O
as	O
much	O
or	O
as	O
well	O
as	O
the	O
Linux	B-Application
and	O
Windows	B-Application
versions	O
.	O
</s>
<s>
On	O
August	O
26	O
,	O
2005	O
,	O
Mupen64	B-Application
version	O
0.5	O
was	O
released	O
.	O
</s>
<s>
It	O
was	O
the	O
last	O
version	O
of	O
Mupen64	B-Application
by	O
Hacktarux	O
,	O
although	O
several	O
branches	O
of	O
the	O
project	O
were	O
made	O
,	O
one	O
of	O
which	O
was	O
Mupen64Plus	B-Application
.	O
</s>
<s>
In	O
October	O
2007	O
,	O
Mupen64	B-Application
was	O
forked	O
by	O
Richard	O
Goedeken	O
(	O
richard42	O
)	O
.	O
</s>
<s>
His	O
work	O
went	O
through	O
several	O
releases	O
before	O
settling	O
on	O
the	O
name	O
Mupen64Plus	B-Application
.	O
</s>
<s>
Mupen64Plus	B-Application
originally	O
aimed	O
to	O
provide	O
a	O
64-bit	O
recompiler	B-Application
and	O
to	O
fix	O
bugs	O
present	O
in	O
Mupen64	B-Application
0.5	O
.	O
</s>
<s>
Over	O
time	O
,	O
the	O
emulator	B-Application
expanded	O
,	O
maintained	O
and	O
improved	O
extant	O
video	O
plug-ins	B-Application
,	O
and	O
provided	O
extra	O
features	O
beyond	O
the	O
project	O
's	O
original	O
scope	O
.	O
</s>
<s>
In	O
late	O
2009	O
,	O
the	O
Mupen64Plus	B-Application
project	O
undertook	O
a	O
major	O
re-design	O
of	O
the	O
emulator	B-Application
's	O
architecture	O
.	O
</s>
<s>
Like	O
many	O
N64	B-Operating_System
emulators	B-Application
(	O
including	O
Sixtyforce	O
,	O
1964	O
,	O
and	O
Project64	B-Language
)	O
,	O
Mupen64Plus	B-Application
uses	O
four	O
modular	O
plug-ins	B-Application
(	O
dynamic	O
libraries	O
)	O
which	O
adhere	O
to	O
a	O
specification	O
written	O
by	O
Project64	B-Language
developer	O
Zilmar	O
.	O
</s>
<s>
This	O
specification	O
was	O
originally	O
written	O
in	O
the	O
late	O
1990s	O
,	O
when	O
all	O
of	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
emulators	B-Application
ran	O
only	O
under	O
Windows	B-Application
.	O
</s>
<s>
The	O
plug-in	B-Application
architecture	O
used	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
specific	O
code	O
inside	O
of	O
each	O
plug-in	B-Application
,	O
which	O
presents	O
difficulties	O
for	O
programmers	O
wishing	O
to	O
support	O
many	O
different	O
operating	O
systems	O
.	O
</s>
<s>
For	O
this	O
reason	O
,	O
the	O
Mupen64Plus	B-Application
team	O
presented	O
a	O
design	O
proposal	O
to	O
modify	O
the	O
plugin	B-Application
application	B-Application
programming	I-Application
interface	I-Application
(	O
API	B-Application
)	O
to	O
place	O
all	O
of	O
the	O
user	O
interface	O
code	O
in	O
one	O
software	O
module	O
and	O
make	O
other	O
improvements	O
to	O
streamline	O
the	O
operation	O
of	O
a	O
cross-platform	B-Operating_System
N64	B-Operating_System
emulator	B-Application
.	O
</s>
<s>
December	O
14	O
,	O
2009	O
saw	O
the	O
first	O
beta	O
release	O
of	O
Mupen64Plus	B-Application
with	O
the	O
revised	O
API	B-Application
,	O
version	O
1.99.1	O
.	O
</s>
<s>
Mupen64Plus	B-Application
2.0	O
is	O
currently	O
being	O
developed	O
.	O
</s>
<s>
Brandon	O
Widdler	O
of	O
Digital	O
Trends	O
considers	O
the	O
emulator	B-Application
one	O
of	O
the	O
best	O
for	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
along	O
with	O
Project64	B-Language
,	O
citing	O
its	O
cheat	O
functions	O
,	O
dynamic	O
recompilers	B-Application
for	O
32-bit	O
and	O
64-bit	O
machines	O
,	O
and	O
speed	O
adjustment	O
feature	O
.	O
</s>
<s>
Actively	O
developed	O
RetroArch/Libretro	O
port	O
.	O
</s>
<s>
In	O
June	O
2012	O
,	O
a	O
fork	O
for	O
the	O
BlackBerry	B-Application
Playbook	I-Application
was	O
announced	O
named	O
Mupen64Plus-PB	O
.	O
</s>
<s>
In	O
early	O
2013	O
,	O
Ouya	B-Application
announced	O
the	O
release	O
of	O
its	O
console	O
based	O
on	O
open-source	O
Android	B-Application
technology	O
built	O
for	O
game	O
development	O
.	O
</s>
<s>
Ouya	B-Application
focuses	O
on	O
emulating	B-Application
and	O
the	O
first	O
showcase	O
session	O
presented	O
Super	B-Application
Mario	I-Application
64	I-Application
and	O
Street	B-Application
Fighter	I-Application
2	I-Application
emulated	B-Application
on	O
Mupen64Plus	B-Application
and	O
SuperGNES	O
,	O
respectively	O
.	O
</s>
