Place skipped compatibility data at boot, SoftReset, SWI, and IRQ exit PC+8 locations. Preserve the real IRQ callback return instruction as its readback word. Keep CPU and memory behavior image-derived, including caller-supplied images.
Add original boundary, load-lane, caller-state, wait, supplied-image, and builder-fixup regressions. Document the historical failures, research decision, passing public BIOS checkpoint, and remaining fetch-history limits.
Validated on Darwin arm64: 868 workspace tests in debug and release; 799 core/demo tests separately in both profiles; 39 preparation tests; native ROM window tests in both profiles; ten graphics/window smoke modes; fmt, clippy, and rustdoc. Hash-verified public ARM, Thumb, memory, and BIOS suites pass unchanged with identical debug/release reports. BIOS: r12=0, 17606 steps, 197456 nominal cycles, one IRQ entry.
Add --suite memory with verified source hashes, ARM eval checkpoint 0x08000350, and the r12 result assertion. Keep default ARM and explicit Thumb preparation unchanged. Extend offline adapter and CLI tests; retain public binaries outside tracked files.
The unmodified memory ROM passes in debug and release after 174 steps and 1478 nominal cycles, without changing core behavior. Document weak byte-write assertions and mode-selection caveats. Add original CPU-driven tests with exact sentinels, mode/mirror boundaries, byte lanes, forced blank, readback, and nominal device timing.
Validated on Darwin arm64: 851 workspace tests in debug and release; 782 core/demo tests separately; 30 Python tests; all three pinned public suites in both profiles; native ROM windows; all ten demo smoke tests; fmt, clippy, rustdoc, and local documentation links.
Correct the shared Thumb block-store PC offset from four to six bytes. Retain ARM PC+12, 64-byte empty-list writeback, normal load behavior, alignment, flags, and nominal timing. Correct prior internal expectations and add original regressions for bases, banks, alignment, ROM windows, writeback, clocks, and atomic errors.
The pinned public Thumb ROM now passes its unchanged ARM-state r7 checkpoint after 807 steps and 4170 nominal cycles. The pinned ARM ROM still passes. Neither external ROM nor result assertion is modified.
Validated on Darwin arm64: 848 workspace tests in debug and release; 779 core/demo tests separately; 21 Python adapter tests; both public suites in both profiles; native ROM-window tests; all ten demo window smoke tests; fmt, clippy, rustdoc, and local documentation links.
Snapshot mapped PC+8 bytes for ARM data reads in the documented unused ranges. Preserve strict host/fetch/Thumb/DMA diagnostics, missing-ROM errors, existing write rules, and nominal timing. Add original regressions and document the bounded model.
The unmodified pinned jsmolka ARM ROM now reaches its verified checkpoint with r12=0 in debug and release: 1344 steps and 11257 nominal cycles. No ROM, manifest, or assertion changes.
Validated on Darwin arm64: 842 workspace tests in debug and release; 773 core/demo tests separately; Python adapter tests; native ROM windows; all ten demo window smoke tests; fmt, clippy, and rustdoc.
Allow ARM LDR/LDRB/LDRH/LDRSB/LDRSH to share non-PC base and destination registers with writeback. Keep the loaded value after computing addresses from incoming operands. Preserve PC restrictions, unsupported user transfers, store behavior, and atomic memory diagnostics.
Add original regressions for index modes, offsets, widths, alignment, sign extension, all active banks, timing, I/O/IRQ ordering, and failures. The unchanged pinned public ARM ROM progresses past tests 360 and 361, then fails at test 362 on an unmapped 0x80000000 read; no full-suite pass is claimed.
Verified on Darwin arm64: debug/release workspace and core suites, Python adapter tests, Clippy, rustdoc, native ROM-window checks, and all ten demo smoke tests. Document the new behavior and next memory-access blocker.
Add a standard-library Python adapter and SHA-256/size lock for jsmolka/gba-tests ARM at a7113b67e63f83a9b321696ddd7042ccfad6c881. Retain sources and license locally, refuse tracked output paths or overwrites, verify offline inputs, and generate the source-verified eval/r12 suite checkpoint without patching the ROM.
Add Python to the pinned Nix shell, offline adapter regressions, and public-test provenance/results documentation. Verified on Darwin arm64: Rust debug/release workspace tests, adapter tests, Clippy, rustdoc, native ROM and all demo window checks. The public test remains a failing baseline at instruction 0xe5b00004, PC 0x0800132c, in test 360.
