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cc65 - a freeware C compiler for 6502 based systems
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Greg King a132bc4b28 Fixed a comparison operator; so that the NULL at the end of argv[] is copied by InitCmdLine(). 
Most POSIX function libraries hid that long-time bug by putting zeroes in their dynamic RAM; but, MinGW's library doesn't do it.  Therefore, a command like
cl65 foo.c -l
would crash with a "Segmentation fault" -- it should give a nice error message about "-l"; and, quit neatly.
2015-08-30 05:16:38 -04:00
asminc Create static drivers directly from source files. 2014-06-04 23:50:18 +02:00
cfg More room by default for zero-page data. 2015-03-23 18:42:25 +01:00
doc Fixed the syntax in the shortcut expansion of ".ZEROPAGE". 2015-08-01 05:50:13 -04:00
include Added explicit settings of calling conventions in pointer-to-function declarations in system and library headers. 2015-06-22 00:15:48 -04:00
libsrc Fixed bugs in the interface for C-level interrupt handlers. 2015-08-26 19:33:34 -04:00
samples Merge pull request #179 from greg-king5/overlay 2015-07-20 18:00:56 +02:00
src Fixed a comparison operator; so that the NULL at the end of argv[] is copied by InitCmdLine(). 2015-08-30 05:16:38 -04:00
test Merge pull request #197 from greg-king5/static 2015-08-15 06:53:40 +02:00
testcode Added a test program for the special features of snprintf(). 2015-07-17 20:34:05 -04:00
util Changed multi-line C comments into another style. 2014-06-30 16:51:07 -04:00
.gitignore use 'testwrk' dir for bdiff 2014-11-25 12:56:45 +01:00
.travis.yml Run the regression tests _before_ replacing the built binaries with Win32 cross-builds. 2015-06-27 00:43:41 +02:00
LICENSE Simplified license. 2015-05-05 21:56:23 +02:00
Makefile Create zip file. 2014-03-09 00:20:17 +01:00
Makefile.travis Fixed file name of Windows binary snapshot. 2015-01-20 21:00:44 +01:00
README.md Don't show (potentially failing) pull request builds. 2015-08-25 13:57:21 +02:00

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cc65 is a complete cross development package for 65(C)02 systems, including a powerful macro assembler, a C compiler, linker, librarian and several other tools.

cc65 has C and runtime library support for many of the old 6502 machines, including

  • the following Commodore machines:
    • VIC20
    • C16/C116 and Plus/4
    • C64
    • C128
    • CBM 510 (aka P500)
    • the 600/700 family
    • newer PET machines (not 2001).
  • the Apple ][+ and successors.
  • the Atari 8 bit machines.
  • the Atari 5200 console.
  • GEOS for the C64, C128 and Apple //e.
  • the Nintendo Entertainment System (NES) console.
  • the Supervision console.
  • the Oric Atmos.
  • the Lynx console.
  • the Ohio Scientific Challenger 1P

The libraries are fairly portable, so creating a version for other 6502s shouldn't be too much work.