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feat(cartridge): add explicit GPIO and RTC control support

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0xrsydn 2026-10-07 05:28:52 +07:00
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18 changed files with 889 additions and 26 deletions
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docs/testing.md
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@ -65,6 +65,11 @@ They verify suite selection, pinned URLs, hashes, sizes, checkpoint validation,
The [Pong adapter](public-pong.md) has additional offline tests for its pinned downloads, retained license, and bounded gameplay scenarios.
Run the external Pong suite separately; ordinary Cargo and Python tests require no public ROM or network access.
Device initialization regressions use original instructions to check disabled sound, wave RAM, disconnected serial pins, and reset flags.
Cartridge GPIO tests use an explicitly attached RTC control subset and original pin sequences, never game code or host time.
They cover read overlays, unchanged ROM bytes, masks, directions, widths, serial framing, control/reset, aborts, and explicit calendar/IRQ diagnostics.
ARM/Thumb and DMA3 checks retain Game Pak costs; staged fetches, rejected edges, and block-store preflight retain diagnostic atomicity.
Desktop tests check explicit `--rtc` selection, duplicate rejection, unchanged files, and native-window configuration.
Physical pin timing, GPIO aliases, RTC calendar values, and battery behavior remain unverified or unimplemented.
They verify explicit activation errors and atomic byte/word/block-store/DMA failure behavior.
The optional [local Emerald startup check](research/emerald-reset.md) now reaches sound activation but still fails deliberately there.
[Jev evidence review](jev-debugging.md) is optional and never changes deterministic test verdicts.