<s>
The	O
eXtreme	O
Minimal	O
Kernel	B-Operating_System
(	O
XMK	B-Operating_System
)	O
is	O
a	O
real-time	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
(	O
RTOS	B-Operating_System
)	O
that	O
is	O
designed	O
for	O
minimal	O
RAM/ROM	O
use	O
.	O
</s>
<s>
It	O
achieves	O
this	O
goal	O
,	O
though	O
it	O
is	O
almost	O
entirely	O
written	O
in	O
the	O
C	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
As	O
a	O
consequence	O
it	O
can	O
be	O
easily	O
ported	O
to	O
any	O
8-	O
,	O
16-	O
,	O
or	O
32-bit	O
microcontroller	B-Architecture
.	O
</s>
<s>
XMK	B-Operating_System
comes	O
as	O
two	O
independent	O
packages	O
:	O
the	O
XMK	B-Operating_System
Scheduler	O
that	O
contains	O
the	O
core	O
kernel	B-Operating_System
,	O
everything	O
necessary	O
to	O
run	O
a	O
multithreaded	B-General_Concept
embedded	O
application	O
,	O
and	O
the	O
Application	O
Programming	O
Layer	O
(	O
APL	O
)	O
that	O
provides	O
higher	O
level	O
functions	O
atop	O
the	O
XMK	B-Operating_System
Scheduler	O
API	B-General_Concept
.	O
</s>
<s>
The	O
XMK	B-Operating_System
distribution	O
contains	O
no	O
standard	B-Library
libraries	I-Library
such	O
as	O
libc	B-Language
that	O
should	O
be	O
part	O
of	O
the	O
development	B-Application
tools	I-Application
for	O
target	O
systems	O
.	O
</s>
