<s>
cc65	B-Application
is	O
a	O
cross	B-Application
development	I-Application
package	O
for	O
6502	B-General_Concept
and	O
65C02	B-General_Concept
targets	O
,	O
including	O
a	O
macro	O
assembler	O
,	O
a	O
C	B-Language
cross	B-Application
compiler	I-Application
,	O
linker	B-Application
,	O
librarian	B-Application
and	O
several	O
other	O
tools	B-Application
.	O
</s>
<s>
cc65	B-Application
is	O
based	O
on	O
a	O
native	O
C	B-Language
compiler	O
that	O
was	O
originally	O
adapted	O
for	O
the	O
Atari	B-Device
8-bit	I-Device
computers	I-Device
by	O
John	O
R	O
.	O
Dunning	O
in	O
1989	O
,	O
which	O
originated	O
as	O
a	O
Small	B-Language
C	I-Language
descendant	O
.	O
</s>
<s>
It	O
has	O
several	O
extensions	O
,	O
and	O
some	O
of	O
the	O
limits	O
of	O
the	O
original	O
Small	B-Language
C	I-Language
compiler	O
are	O
gone	O
.	O
</s>
<s>
The	O
actual	O
cc65	B-Application
compiler	O
,	O
a	O
complete	O
set	O
of	O
binary	O
tools	B-Application
(	O
assembler	O
,	O
linker	B-Application
,	O
etc	O
.	O
)	O
</s>
<s>
and	O
runtime	O
library	O
are	O
under	O
a	O
license	O
identical	O
to	O
zlib	B-Language
's	O
.	O
</s>
<s>
The	O
compiler	O
itself	O
comes	O
close	O
to	O
ANSI	O
C	B-Language
compatibility	O
,	O
while	O
C	B-Language
library	O
features	O
depend	O
on	O
the	O
target	O
platform	O
's	O
hardware	O
.	O
</s>
<s>
stdio	B-Language
is	O
supported	O
on	O
many	O
platforms	O
,	O
as	O
is	O
Borland-style	O
screen	O
handling	O
.	O
</s>
<s>
GEOS	B-Device
is	O
also	O
supported	O
on	O
the	O
Commodore	O
64	O
and	O
even	O
the	O
Apple	B-Device
II	I-Device
.	O
</s>
<s>
The	O
library	O
supports	O
many	O
of	O
the	O
Commodore	O
platforms	O
(	O
C64	O
,	O
C128	B-Device
,	O
C16/116/Plus/4	O
,	O
P500	B-Device
and	I-Device
600/700	I-Device
family	I-Device
)	O
,	O
Apple	B-Device
II	I-Device
family	I-Device
,	O
Atari	B-Device
8-bit	I-Device
family	I-Device
,	O
Oric	O
Atmos	O
,	O
Nintendo	O
Entertainment	O
System	O
,	O
Watara	B-General_Concept
Supervision	I-General_Concept
game	O
console	O
,	O
Synertek	O
Systems	O
SYM-1	B-Device
and	O
Ohio	B-Application
Scientific	I-Application
Challenger	B-Application
1P	I-Application
.	O
</s>
<s>
Officially	O
supported	O
host	O
systems	O
include	O
Linux	B-Application
,	O
Microsoft	B-Application
Windows	I-Application
,	O
MS-DOS	B-Application
and	O
OS/2	B-Application
,	O
but	O
the	O
source	O
code	O
itself	O
has	O
been	O
reported	O
to	O
work	O
almost	O
unmodified	O
on	O
many	O
platforms	O
beside	O
these	O
.	O
</s>
<s>
The	O
ca65	B-Application
macro	O
assembler	O
supports	O
6502	B-General_Concept
,	O
65C02	B-General_Concept
,	O
and	O
65C816	B-General_Concept
processors	O
,	O
and	O
can	O
be	O
used	O
standalone	O
without	O
the	O
C	B-Language
compiler	O
.	O
</s>
