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Fake6502

MOS 6502 Emulator in C.

Features

  • Full MOS 6502 instruction set, including all undocumented opcodes.
  • Small (<500 lines of code, including comments).
  • Passes all relevant test suites.

Test suites

  • Klaus Dormann functional test, and decimal test.
  • Bird Computer test suite.
  • Ruud Baltissen ttl6502 test suite.
  • Lorenz test suite for undocumented opcodes.
  • Visual6502 test for adc/sbc in decimal mode with invalid arguments.
  • Piotr Fusik tests.
  • Avery Lee tests.
  • hcm6502 tests.

Credits

This is a heavily bug-fixed and extended continuation of Fake6502 by Mike Chambers, Copyright © 2011-2013. All new code is Copyright © 2024 by Ivo van poorten. License is BSD 2-Clause.