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cc65

Developer(s)	Ullrich von Bassewitz
Initial release	November 15, 1998 ; 25 years ago  ( 1998-11-15 ) [1]
Stable release	2.19 [2]   / November 20, 2020 ; 3 years ago  ( 2020-11-20 )
Repository	github .com /cc65 /cc65
Written in	ANSI C
Operating system	Multiplatform
Type	Cross compiler
License	zlib license
Website	cc65 .github .io

cc65 is a cross development package for 6502 and 65C02 targets, including a macro assembler , a C cross compiler , linker , librarian and several other tools .

Overview [ edit ]

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 (assembler, linker, etc.) and runtime library are under a license identical to zlib 's. ^[3]

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 the Apple II . The library supports many of the Commodore platforms ( C64 , C128 , C16/116 / Plus/4 , P500 and 600/700 family ), Apple II, Atari 8-bit computers , Oric Atmos , Nintendo Entertainment System , Watara Supervision game console, Synertek Systems SYM-1 and Ohio Scientific Challenger 1P. ^[4]

Officially supported host systems include Linux , Microsoft Windows , MS-DOS and OS/2 , but the source code itself has been reported ^{[ by whom? ]} to work almost unmodified on many platforms beside these.

The ca65 macro assembler supports 6502 , 65C02 , and 65C816 processors, and can be used standalone without the C compiler. ^[5]

Supported API [ edit ]

static [ edit ]

• conio (text-based console I/O non-scrolling)
• dio (block-oriented disk I/O bypassing the file system)

dynamic [ edit ]

• em (expanded memory, used for all kinds of memory beyond the 6502's 64K barrier, similar EMS )
• joystick (relative input devices)
• mouse (absolute input devices)
• serial (communication)
• tgi (2D graphics primitives inspired by BGI )

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

References [ edit ]

External links [ edit ]

• Official website (archive) (no longer maintained)
• Modern github fork of cc65
• Contiki desktop, written with cc65
• Atari TGI 2009-11-02 release announcement on cc65 mailing list
• Android host