<s>
The	O
Kent	O
Retargetable	O
occam	B-Language
Compiler	B-Language
(	O
KRoC	B-Application
)	O
,	O
is	O
computer	O
software	O
,	O
an	O
implementation	O
of	O
the	O
programming	O
language	O
occam	B-Language
,	O
that	O
is	O
based	O
on	O
the	O
Inmos	O
occam	B-Language
2.1	I-Language
compiler	B-Language
as	O
a	O
front-end	O
and	O
a	O
retargetable	O
back-end	O
to	O
produce	O
machine	B-Language
code	I-Language
for	O
various	O
microprocessors	B-Architecture
.	O
</s>
<s>
Ports	O
of	O
the	O
compiler	B-Language
have	O
been	O
made	O
for	O
PowerPC	B-Architecture
,	O
SPARC	B-Architecture
,	O
x86	B-Operating_System
,	O
and	O
Alpha	B-Device
processors	I-Device
.	O
</s>
<s>
Along	O
with	O
the	O
translation	O
to	O
different	O
processors	O
,	O
the	O
KRoC	B-Application
team	O
have	O
modified	O
the	O
compiler	B-Language
significantly	O
,	O
creating	O
a	O
compiler	B-Language
for	O
what	O
has	O
become	O
termed	O
occam	B-Language
v2.5	O
,	O
and	O
now	O
as	O
occam-π	B-Language
,	O
pronounced	O
occam-pi	B-Language
.	O
</s>
<s>
Originally	O
the	O
translation	O
from	O
the	O
occam	B-Language
compiler	B-Language
front-end	O
was	O
by	O
interpretation	O
of	O
the	O
American	B-Protocol
Standard	I-Protocol
Code	I-Protocol
for	I-Protocol
Information	I-Protocol
Interchange	I-Protocol
(	O
ASCII	B-Protocol
)	O
file	O
in	O
assembly	B-Language
language	I-Language
.	O
</s>
<s>
The	O
current	O
KRoC	B-Application
compiler	B-Language
target	O
is	O
an	O
Extended	O
Transputer	B-General_Concept
Code	O
(	O
ETC	O
)	O
,	O
which	O
is	O
then	O
translated	O
into	O
the	O
target	O
machine	B-Language
language	I-Language
.	O
</s>
<s>
ETC	O
code	O
can	O
be	O
viewed	O
as	O
a	O
kind	O
of	O
byte	O
code	O
:	O
it	O
is	O
a	O
compact	O
description	O
of	O
the	O
compiler	B-Language
's	O
intent	O
on	O
a	O
virtual	B-Architecture
machine	I-Architecture
that	O
is	O
similar	O
to	O
the	O
transputer	B-General_Concept
.	O
</s>
<s>
ETC-code	O
variants	O
of	O
the	O
KRoC	B-Application
compiler	B-Language
exist	O
for	O
Intel	B-Operating_System
x86	I-Operating_System
on	O
Linux	B-Application
,	O
and	O
on	O
Windows	B-Application
using	O
Cygwin	B-Language
.	O
</s>
<s>
A	O
SPARC	B-Architecture
port	O
is	O
in	O
the	O
works	O
.	O
</s>
