A 6502 emulator written in Rust which passes all of Tom Harte's extensive tests (see below)*
*Except some of the illegal/undefined opcodes do not currently make the correct memory accesses so cycle accuracy for these opcodes are not tested. They are functionally correct, however, according to the tests.
This makes use of Tom Harte's 6502 processor tests for automatic testing. Essentially, these are randomly generated tests for each opcode in JSON format which defines the initial state and expected final state. To acquire these tests, run clone_tests.sh then simply call cargo test from the root of this repository to actually perform automated testing.
You may also test instructions and opcodes individually:
./test_instr <instruction-name>
./test_opcode <opcode-in-hex>
This project is licensed under the MIT license and is completely free to use and modify.