gameboy-rust/docs/research
0xrsydn 663b25e5d1 feat(memory): retain IWRAM lane effects across DMA
Update existing Thumb IWRAM continuation lanes from successful DMA reads and writes before the resumed PC+4 snapshot. Keep channel halfword duplication separate from actual lane accesses. Preserve atomic errors, cold-entry diagnostics, IRQ invalidation, and nominal timing.

Add original DMA matrices and resume regressions; update prior invalidation expectations. Record pinned ares and jgenesis evidence and explicit limits for cross-state history, general open bus, and sub-instruction arbitration.

Validated on Darwin arm64: 939 workspace and 870 core/demo tests per debug/release profile, 39 Python tests, native ROM windows, ten window smoke modes, fmt, clippy, and rustdoc. Public ARM/Thumb/memory/BIOS reports remain identical to the previous results.
2026-10-06 02:39:17 +07:00
..
bios-readback.md feat(memory): retain aligned Thumb BIOS prefetch words 2026-10-06 01:02:31 +07:00
dma-data-latches.md feat(memory): retain IWRAM lane effects across DMA 2026-10-06 02:39:17 +07:00
iwram-bus-history.md feat(memory): retain IWRAM lane effects across DMA 2026-10-06 02:39:17 +07:00
thumb-bios-prefetch.md feat(memory): retain sequential Thumb IWRAM bus lanes 2026-10-06 01:44:21 +07:00