Cc65


cc65 is a cross development package for 6502 systems, including a macro assembler, a C cross compiler, linker, librarian and several other tools.
cc65 is based on a native C compiler that was originally adapted for the Atari 8-bit computers by John R. Dunning in 1989, which originated as a Small C descendant. It has several extensions, and some of the limits of the original Small C compiler are gone.
The toolkit has largely been expanded by Ullrich von Bassewitz and other contributors. The actual cc65 compiler, a complete set of binary tools and runtime library are under a license identical to zlib's. The ca65 cross-assembler is one of the most powerful 6502 cross-assemblers available under an open-source license.
The compiler itself comes close to ANSI C compatibility, while C library features depend on the target platform's hardware. stdio is supported on many platforms, as is Borland-style conio.h screen handling. GEOS is also supported on the Commodore 64 and even the Apple II. The library supports many of the Commodore platforms, Apple II family, Atari 8-bit family, Oric Atmos, Nintendo Entertainment System, Watara Supervision game console and Ohio Scientific Challenger 1P.
Officially supported host systems include Linux, Microsoft Windows, MS-DOS and OS/2, but the source code itself has been reported to work almost unmodified on many platforms beside these.

Supported API

static

coniodioemdjoymousertgi
apple2 11112
apple2enh 11112
atari 215
atmos 1
c16 11
c64 64311
c128 52312
cbm510 111
cbm610 11
geos 111
lynx111
nes 1
osi
pet 1
plus4 11
supervision
vic20 2

Note: For static libraries, "Yes" means the feature is available. For dynamic libraries, the columns list the number of available drivers.