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cc65 - a freeware C compiler for 6502 based systems
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Oliver Schmidt 02daf9f8b5 So far the built-in inlining of several known standard function was always (!) enabled and the option -Os enabled additional, potentially unsafe inlining of some of those functions. 
There were two aspects of this behavior that were considered undesirable:
- Although the safe inlining is in general desirable it should only be enabled if asked for it - like any other optimization.
- The option name -Os implies that it is a safe option, the potentially unsafe inlining should have a more explicit name.

So now:
- The option -Os enables the safe inlining.
- The new option --eagerly-inline-funcs enables the potentially unsafe inlining (including the safe inlining).

Additionally was added:
- The option --inline-stdfuncs that does like -Os enable the safe inlining but doesn't enable optimizations.
- The pragma inline-stdfuncs that works identical to --inline-stdfuncs.
- The pragma allow-eager-inline that enables the potentially unsafe inlining but doesn't include the safe inlining. That means that by itself it only marks code as safe for potentially unsafe inlining but doesn't actually enable any inlining.
2017-04-03 23:20:26 +02:00
asminc Creativison changes. 2017-03-17 21:42:51 +01:00
cfg Fix regression of #pragma bss-name 2017-03-21 22:35:25 +01:00
doc So far the built-in inlining of several known standard function was always (!) enabled and the option -Os enabled additional, potentially unsafe inlining of some of those functions. 2017-04-03 23:20:26 +02:00
include So far the built-in inlining of several known standard function was always (!) enabled and the option -Os enabled additional, potentially unsafe inlining of some of those functions. 2017-04-03 23:20:26 +02:00
libsrc Merge pull request #402 from IrgendwerA8/runtime_improvements 2017-03-20 11:34:06 +01:00
samples Removed a pointless cc65 command-line option from the samples makefile. 2017-03-10 08:47:48 -05:00
src So far the built-in inlining of several known standard function was always (!) enabled and the option -Os enabled additional, potentially unsafe inlining of some of those functions. 2017-04-03 23:20:26 +02:00
test Merge pull request #411 from pfusik/bss-name-regression 2017-03-22 13:44:48 +01:00
testcode Made C's sizeof operator work with initialized void variables. 2017-03-12 14:41:32 -04:00
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 Allow to control test Makefile output via QUIET (like libsrc). 2017-03-20 11:22:04 +01:00
LICENSE Simplified license. 2015-05-05 21:56:23 +02:00
Makefile Allow to build samples from the main Makefile. 2016-06-12 23:30:29 +02:00
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

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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.