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test(bios): integrate pinned BIOS read-protection baseline

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Add --suite bios with hash-verified upstream files and the ARM evaluation checkpoint at 0x08000248. Preserve the r12=0 assertion, original BIOS boot, and all test bytes. Add synthetic adapter and CLI regressions.

On Darwin arm64 the public ROM fails test 1 in debug and release after 64 steps and 543 nominal cycles. Document that this tests protected reads of Nintendo firmware opcodes, not general BIOS service compatibility. Online and offline preparation agree; 39 Python tests pass. Core behavior is unchanged.
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0xrsydn 2026-10-05 21:31:04 +07:00
commit 6e736c634b
11 changed files with 143 additions and 8 deletions
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docs/rom-tests.md
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@ -136,7 +136,8 @@ The first public integration is [jsmolka/gba-tests ARM](public-arm-tests.md), wi
The pinned ARM ROM now passes this checkpoint on Darwin arm64. Historical failures remain documented.
The [pinned Thumb ROM](public-thumb-tests.md) also passes its verified r7 checkpoint after the empty-list store correction.
The [pinned memory ROM](public-memory-tests.md) also passes, without a core change and with explicit coverage limits.
Next, integrate a pinned public BIOS suite with a verified result protocol.
The [pinned BIOS read-protection ROM](public-bios-tests.md) reaches its checkpoint but fails test 1 with the original replacement BIOS.
Its expected values depend on Nintendo firmware. Record that failure rather than changing the assertion or returning guessed constants.
For further public ARM7TDMI/GBA tests, inspect their source, license, entry assumptions, and result protocol.
Pin source revisions and build instructions before comparing emulator changes.
Adapt suites to verified completion addresses and result locations; do not guess them or treat timeouts as passes.