<s>
MCU	B-Application
8051	I-Application
IDE	I-Application
is	O
a	O
free	B-Application
software	I-Application
integrated	B-Application
development	I-Application
environment	I-Application
for	O
microcontrollers	B-Architecture
based	O
on	O
the	O
8051	B-Architecture
.	O
</s>
<s>
MCU	B-Application
8051	I-Application
IDE	I-Application
has	O
a	O
built-in	O
simulator	B-Application
not	O
only	O
for	O
the	O
MCU	B-Architecture
itself	O
,	O
but	O
also	O
LCD	O
displays	O
and	O
simple	O
LED	O
outputs	O
as	O
well	O
as	O
button	O
inputs	O
.	O
</s>
<s>
It	O
supports	O
two	O
programming	O
languages	O
:	O
C	B-Language
(	O
using	O
SDCC	B-Application
)	O
and	O
assembly	B-Language
and	O
runs	O
on	O
both	O
Windows	O
and	O
Unix-based	O
operating	O
systems	O
,	O
such	O
as	O
FreeBSD	B-Operating_System
and	O
Linux	B-Application
.	O
</s>
<s>
MCU	B-Architecture
simulator	B-Application
with	O
many	O
debugging	O
features	O
:	O
register	O
status	O
,	O
step	O
by	O
step	O
,	O
interrupt	O
viewer	O
,	O
external	O
memory	O
viewer	O
,	O
code	O
memory	O
viewer	O
,	O
etc	O
.	O
</s>
<s>
Simulator	B-Application
for	O
certain	O
electronic	O
peripherals	O
like	O
LEDs	O
,	O
LED	O
displays	O
,	O
LED	O
matrices	O
,	O
LCD	O
displays	O
,	O
etc	O
.	O
</s>
<s>
The	O
current	O
version	O
1.4	O
supports	O
many	O
microcontrollers	B-Architecture
including	O
:	O
</s>
