Millfork

A middle-level programming language targeting 6502-based, 8080-based, Z80-based and 6809-based microcomputers.

For binary releases, see: https://github.com/KarolS/millfork/releases (latest: 0.3.24).
For build instructions, see Build instructions.

Features

• high performance, due to being designed and optimized for 8-bit microprocessors

• multiple targets:

  • Commodore 64 (the primary target)
  • Commodore 64 with SuperCPU (experimental, incomplete and very buggy)
  • other Commodore computers: C16, Plus/4, C128, PET, VIC-20 (stock or with RAM extensions)
  • other 6502-based machines: Famicom/NES, Atari Lynx, Atari 8-bit computers, BBC Micro, Apple II+/IIe/Enhanced IIe, Atari 2600 (experimental), Commander X16 (experimental)
  • Z80-based machines: ZX Spectrum 48k, NEC PC-88, Amstrad CPC, MSX, TRS-80 Model 1 and 3, Robotron Z1013
  • CP/M
  • Game Boy (experimental)
  • Tandy Color Computer (experimental)
  • MS-DOS (very experimental, via 8080-to-8086 translation)

• multiple supported target processors:

  • well supported: MOS 6502, Ricoh 2A03/2A07, WDC 65C02, Intel 8080, Intel 8085, Zilog Z80
  • reasonably well supported: Sharp LR35902, CSG 65CE02, Motorola 6809
  • partially supported: Hudson Soft HuC6280, WDC 65816, Intel 8086

• inline assembly

• simple macros

• pay only for what you use: not a single byte of memory is used unless for code or explicitly declared variables

• a simple memory model that avoids using the stack

• multi-pass whole-program optimizer (that will even optimize your hand-written assembly if you ask it to)

• support for multi-file programs (Commodore only) and banked cartridges

Licensing

The compiler is distributed under GPLv3 (see LICENSE).

The standard include files (located in the

include

The documentation is distributed under the CC-0 license.

More info

• Documentation (external version: https://millfork.readthedocs.io)

• Example programs