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cc65 - a freeware C compiler for 6502 based systems
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Oliver Schmidt 37107174c6 Added waitvsync() for the Enhanced Apple //e.
The implementation is a bit tricky as it requires to take different code paths for the //e, the //c and the IIgs. Additionally the //c only provides a VBL IRQ flag supposed to be used by an IRQ handler to determine what triggered the IRQ. However, masking IRQs on the CPU, activating the VBL IRQ, clearing any pending VBL IRQs and then polling for the IRQ flag does the trick.
2020-06-18 21:44:57 +02:00
asminc Added waitvsync() for the Enhanced Apple //e. 2020-06-18 21:44:57 +02:00
cfg Updated the cx16 library to the Commander X16 Kernal's prerelease 35. 2019-12-25 10:56:32 -05:00
doc Added waitvsync() for the Enhanced Apple //e. 2020-06-18 21:44:57 +02:00
include Added waitvsync() for the Enhanced Apple //e. 2020-06-18 21:44:57 +02:00
libsrc Added waitvsync() for the Enhanced Apple //e. 2020-06-18 21:44:57 +02:00
samples Refactored the TGI demo. 2020-06-05 13:37:20 -04:00
src use same description as in the docs 2020-06-16 00:11:07 +02:00
test Changes resulting from 2nd code review 2020-02-03 20:45:09 +01:00
testcode Fixed the target guards around the usage messages. 2019-12-30 19:53:39 -05:00
util util/zlib/deflater: Fix several compiler warnings. 2019-06-19 19:01:30 +02:00
.gitattributes Added .gitattributes to force LF line endings on commit. 2017-03-12 18:13:18 +01:00
.gitignore Don't ignore more than necessary. 2016-06-01 22:36:38 +02:00
.travis.yml Migrate 'encrypted variables' variables to 'repository settings'. 2017-05-17 20:56:21 +02:00
LICENSE Simplified license. 2015-05-05 21:56:23 +02:00
Makefile Added "html" and "info" goals to the top-level Makefile. 2017-05-24 18:49:02 -04:00
Makefile.travis The doc now lives in the 'master' branch of the 'doc' project. 2018-09-18 23:39:11 +02:00
README.md Normalized Atari naming. 2020-02-17 11:07:52 +01:00

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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 2600 console.
  • the Atari 5200 console.
  • GEOS for the C64, C128 and Apple //e.
  • the Bit Corporation Gamate console.
  • the NEC PC-Engine (aka TurboGrafx-16) console.
  • the Nintendo Entertainment System (NES) console.
  • the Watara Supervision console.
  • the VTech Creativision console.
  • the Oric Atmos.
  • the Oric Telestrat.
  • 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.