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cc65 - a freeware C compiler for 6502 based systems
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Oliver Schmidt dacee3b9ed Removed IRQ support from TGI drivers. 
All but one TGI drivers didn't use IRQs. Especially when the TGI driver kernel was the only .interruptor this meant quite some unnecessary overhead because it pulled in the whole IRQ infrastructure.

The one driver using IRQs (the graphics driver for the 160x102x16 mode on the Lynx) now uses a library reference to set up a JMP to its IRQ handler.
2018-02-02 18:15:45 +01:00
asminc Removed IRQ support from TGI drivers. 2018-02-02 18:15:45 +01:00
cfg Marked Apple II EXEHDR segment as optional. 2018-02-02 14:46:57 +01:00
doc Mention the recently added linker configs. 2018-02-01 00:18:07 +01:00
include Factored out target specific inclusion of target header. 2018-02-02 12:59:05 +01:00
libsrc Removed IRQ support from TGI drivers. 2018-02-02 18:15:45 +01:00
samples Updated AppleCommander URL. 2018-02-01 21:46:56 +01:00
src 65C02 JMP (ind,x) opcode 7C 2018-01-14 19:42:29 +00:00
test Merge pull request #446 from clbr/lz4 2017-06-10 23:23:12 +02:00
testcode Added Makefile for recently added linker config test program. 2018-02-01 21:50:54 +01:00
util dont use that silly buffer 2015-11-29 21:15:10 +01:00
.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 Fixed file name of Windows binary snapshot. 2015-01-20 21:00:44 +01:00
README.md README.md: PC-Engine is a console 2017-02-22 14:25:10 +01:00

README.md

Windows Snapshot

Documentation

Wiki

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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 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.