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andwati
0dcd2ed687
- Added `state.c` to handle saving and loading the state of the CPU and Bus. - Implemented CRC32 checksum for data integrity verification during state operations. - Enhanced `README.md` in tests/roms to document new test commands for decimal, interrupt, Apple I, and nestest. - Created new test files: `run_apple1.c`, `run_decimal.c`, `run_interrupt.c`, `run_nestest.c`, and `run_vectors.c` to validate the new features. - Updated `run_tests.c` to include tests for state saving/loading and other functionalities. - Introduced `test_vectors.py` to facilitate downloading and running JSON test vectors for opcode verification.
24 lines
1.2 KiB
Markdown
24 lines
1.2 KiB
Markdown
# External validation ROMs
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`make fetch-roms` downloads the official Klaus Dormann NMOS 6502 functional
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test from the [upstream GPL-3.0 repository](https://github.com/Klaus2m5/6502_65C02_functional_tests).
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The download is pinned by SHA-256 and is not committed here.
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`make test-functional` fetches and runs it. Success is the documented loop at
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`$3469`.
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The decimal image is Bruce Clark's public-domain test configured by Gopher2600
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for NMOS accumulator and N/V/Z/C flag validation. `make test-decimal` runs all
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valid and invalid BCD operand combinations and requires `ERROR == 0`.
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`make test-interrupt` assembles Klaus Dormann's GPL-3.0 interrupt test with the
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upstream bundled AS65 assembler and verifies IRQ, NMI, BRK, vectors, flags, and
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concurrent interrupt priority through its success trap at `$06F5`.
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`make test-apple1` assembles the original Woz Monitor source maintained in
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Jeff Tranter's 6502 repository, boots its `$FF00` reset vector, injects a memory
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examine command through the emulated PIA, and verifies the monitor's output.
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`make test-nestest` downloads Kevtris's canonical NROM test and Nintendulator
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golden log, then compares all 8,991 CPU states and cumulative cycle counts.
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