0xrsydn/gameboy-rust
1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

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

Browse source
This commit is contained in:
0xrsydn 2026-10-07 05:28:52 +07:00
commit 692be36349
18 changed files with 889 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

5
docs/usability-roadmap.md
View file

@ -40,10 +40,11 @@ The native Darwin window also starts and presents frames without a diagnostic.
This exposed and corrected missing firmware affine-scale initialization, without a game-specific patch.
Frame-based scenarios and the preparation adapter now make the result repeatable.
A local Emerald run now passes its initial all-device reset, master sound enable, and pulse/noise triggers.
It also passes normal serial transfers and idle multiplayer configuration, then stops at Game Pak GPIO control.
It also passes normal serial transfers and idle multiplayer configuration.
With `--rtc`, it passes Game Pak GPIO setup and stops at the first unsupported RTC calendar-read command.
The core has tested Direct Sound, both pulse channels, and noise channel 4.
Wave channel 3, a continuous sample stream, and desktop audio output remain missing.
See [the runtime result](research/emerald-reset.md). Cartridge GPIO and its real-time clock protocol are the next demonstrated startup investigation.
See [the runtime result](research/emerald-reset.md). RTC calendar transfers and an explicit clock-source model are the next startup requirement.
The separate save requirement remains cartridge SRAM, followed by safe host save persistence.
SRAM is byte-addressable battery-backed save memory. Flash and EEPROM remain separate protocols.