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cc65 - a freeware C compiler for 6502 based systems
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Oliver Schmidt 2c975d3642 Create static drivers directly from source files. 
Up to now static drivers were created via co65 from dynamic drivers. However there was an issue with that approach:

The dynamic drivers are "o65 simple files" which obligates that they start with the 'code' segment. However dynamic drivers need to start with the module header - which is written to. For dynamic drivers this isn't more than a conceptual issue because they are always contain a 'data' segment and may therefore only be loaded into writable memory.

However when dynamic drivers are converted to static drivers using co65 then that issue becomes a real problem as then the 'code' segment may end up in non-writable memory - and thus writing to the module header fails.

Instead of changing the way dynamic drivers work I opted to rather make static driver creation totally independent from dynamic drivers. This allows to place the module header in the 'data' segment (see 'module.mac').
2014-06-04 23:50:18 +02:00
asminc Create static drivers directly from source files. 2014-06-04 23:50:18 +02:00
cfg Merge pull request #122 from groessler/a5200 2014-05-30 22:52:51 +02:00
doc Create static drivers directly from source files. 2014-06-04 23:50:18 +02:00
include set DYN_DRV to 0; define atr5200std_joy 2014-05-31 19:44:10 +02:00
libsrc Create static drivers directly from source files. 2014-06-04 23:50:18 +02:00
samples don't define DYN_DRV for targets which don't predefine it 2014-06-01 19:18:57 +02:00
src Merge pull request #122 from groessler/a5200 2014-05-30 22:52:51 +02:00
testcode fix last change 2014-06-02 08:41:35 +02:00
util Moved ca65html out of the src directory. 2014-01-31 22:27:40 +01:00
.gitignore Added info directory. 2014-03-24 15:25:12 +02:00
.travis.yml Removed references to $TRAVIS from Makefiles. 2014-03-16 21:32:18 +01:00
LICENSE Added "the usual suspects". 2013-03-21 22:23:38 +01:00
Makefile Create zip file. 2014-03-09 00:20:17 +01:00
Makefile.gh-pages Replaced date with Git hash. 2014-03-18 22:41:32 +01:00
README.md Added Apple GEOS to the list of targets. 2014-06-01 18:27:52 +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 libraries are fairly portable, so creating a version for other 6502s shouldn't be too much work.