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cc65 - a freeware C compiler for 6502 based systems https://github.com/cc65/cc65
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Assembly 29.7%
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Spiro Trikaliotis 364e72921c ca65: .constructor after .export fails 
The actor directives (.constructor, .destructor, .interruptor, and .condes)
can't handle a symbol that's already exported.

The relevant code does the checks in the wrong order.

For example, the following correct snippet does not assemble:

        .export         C
C:      .constructor    C, 5

The assembler outputs: test.s:2: Error: Address size mismatch for symbol 'C'

Exchanging both lines makes it work.

This fixes #1647; the patch is provided by 'kugelfuhr' and taken from there.
2022-02-15 22:03:47 +01:00
.github/workflows build utilities in a seperate step 2022-02-11 16:38:40 +01:00
asminc asminc/pet.inc: Add PIA1 & PIA2 2022-01-17 08:22:15 -08:00
cfg Merge branch 'master' into master 2021-11-23 22:56:51 +01:00
doc add hint on VICE -moncommands 2022-02-15 21:25:24 +01:00
include Added telestrat to <time.h>. 2022-02-03 18:23:23 -05:00
libsrc Added to the telestrat library the name of the standard dynamic TGI driver. 2022-02-03 18:23:23 -05:00
samples Removed geos_apple and geos_cbm from the lists of targets. 2022-02-09 04:05:35 -05:00
src ca65: .constructor after .export fails 2022-02-15 22:03:47 +01:00
targettest Removed geos_apple and geos_cbm from the lists of targets. 2022-02-09 04:05:35 -05:00
test Testcase for #1662. 2022-02-14 22:28:22 +08:00
util attempt to prevent utils being compiled with cc65 2022-02-11 16:53:34 +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 Don 2021-09-29 14:48:09 +02:00
LICENSE Simplified license. 2015-05-05 21:56:23 +02:00
Makefile utils before samples 2022-02-05 17:44:46 +01:00
Makefile.travis The doc now lives in the 'master' branch of the 'doc' project. 2018-09-18 23:39:11 +02:00
README.md Re-added build status badge 2021-12-11 15:28:29 +11:00

README.md

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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 Commander X16.
  • the Synertek Systems Sym-1.

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