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cc65 - a freeware C compiler for 6502 based systems
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2c7ccca210
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Greg King 2c7ccca210 Added the optional C keyword "volatile" to the __asm__ statement grammar. 
It prevents the statement's Assembly code from being optimized (e.g., moved or removed).  Optimization is disabled for that statement's entire function (other functions aren't affected).
2016-04-22 11:33:52 -04:00
asminc
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doc Added the optional C keyword "volatile" to the __asm__ statement grammar. 2016-04-22 11:33:52 -04:00
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src Added the optional C keyword "volatile" to the __asm__ statement grammar. 2016-04-22 11:33:52 -04:00
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.gitignore use 'testwrk' dir for bdiff 2014-11-25 12:56:45 +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).
  • the Nintendo Entertainment System (NES) console.
  • the Watara Supervision console.
  • the Oric Atmos.
  • 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.