0xrsydn/gameboy-rust
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gameboy-rust/crates/gba-core/tests
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0xrsydn 652ea397f2 feat(cartridge): add 512-byte and 8 KiB serial EEPROM saves 
Select them with --save-type eeprom512 or eeprom8k. The part follows GBATEK's
protocol on Game Pak data bit 0: DMA3 sends one bit per halfword, '11' +
address + '0' requests a 64-bit block that reads back after four dummy bits,
and '10' + address + data + '0' writes one. A write reports busy for a nominal
108,368 cycles before the block is stored. 8 KiB parts decode the low 10
address bits. ROMs above 16 MiB map EEPROM only at 0x0dffff00..0x0dffffff.

Bits shift out only inside machine steps, so failed steps roll back. CPU
stores, byte/word accesses, CPU reads during a read-out, and malformed or
overlapping requests are diagnostics. Blocks are stored first-bit-as-MSB,
matching common .sav layouts, and work with save files and save states.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HhfHfHEuzv2AUTd6erW1gU
2026-10-14 14:28:41 +07:00
..
bios fix(memory): ignore CPU and DMA writes to the Game Pak ROM windows 2026-10-14 14:28:41 +07:00
cartridge_gpio feat(cartridge): implement RTC calendar transfers and clock updates 2026-10-07 05:59:29 +07:00
dma fix(memory): ignore CPU and DMA writes to unused I/O addresses 2026-10-14 14:28:41 +07:00
effects refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
mosaic refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
pulse_sound feat(audio): implement PSG pulse channel 2 2026-10-07 02:33:41 +07:00
scanlines refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
sprites refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
window_tracking refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
affine_backgrounds.rs fix(video): ignore enable bits for backgrounds a mode lacks 2026-10-14 14:28:41 +07:00
affine_tracking.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
audio_capture.rs feat(audio): capture transactional fixed-rate stereo samples 2026-10-07 07:16:42 +07:00
bios.rs fix(memory): ignore CPU and DMA writes to the Game Pak ROM windows 2026-10-14 14:28:41 +07:00
bitmap_modes.rs fix(video): ignore enable bits for backgrounds a mode lacks 2026-10-14 14:28:41 +07:00
cartridge_gpio.rs feat(cartridge): implement RTC calendar transfers and clock updates 2026-10-07 05:59:29 +07:00
core.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
direct_sound.rs feat(audio): add single-bank wave channel playback 2026-10-07 06:58:46 +07:00
display.rs fix(memory): ignore CPU and DMA writes to unused I/O addresses 2026-10-14 14:28:41 +07:00
dma.rs fix(memory): ignore CPU and DMA writes to unused I/O addresses 2026-10-14 14:28:41 +07:00
eeprom.rs feat(cartridge): add 512-byte and 8 KiB serial EEPROM saves 2026-10-14 14:28:41 +07:00
effects.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
exceptions.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
flash.rs feat(cartridge): implement transactional Flash programming and erase 2026-10-07 08:36:12 +07:00
flash_write.rs feat(cartridge): implement transactional Flash programming and erase 2026-10-07 08:36:12 +07:00
graphics.rs fix(video): ignore enable bits for backgrounds a mode lacks 2026-10-14 14:28:41 +07:00
halt.rs fix(memory): ignore CPU and DMA writes to unused I/O addresses 2026-10-14 14:28:41 +07:00
inactive_devices.rs feat(audio): add single-bank wave channel playback 2026-10-07 06:58:46 +07:00
keypad.rs fix(memory): ignore CPU and DMA writes to unused I/O addresses 2026-10-14 14:28:41 +07:00
machine.rs fix(memory): ignore CPU and DMA writes to unused I/O addresses 2026-10-14 14:28:41 +07:00
memory.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
mosaic.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
mosaic_tracking.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
noise_sound.rs feat(audio): implement PSG noise channel 4 2026-10-07 02:54:57 +07:00
prefetch_cancellation.rs fix(timers): apply machine accesses at bus completion 2026-10-06 21:52:09 +07:00
pulse_sound.rs feat(audio): implement PSG pulse channel 2 2026-10-07 02:33:41 +07:00
rom_bus.rs fix(memory): return the Game Pak address pattern beyond the ROM chip 2026-10-14 14:28:41 +07:00
save_state.rs feat(core): add whole-machine save states with F5/F9 window slots 2026-10-14 14:28:41 +07:00
scanlines.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
serial_control.rs feat(serial): support disconnected Joybus configuration and local registers 2026-10-07 06:38:04 +07:00
serial_external.rs fix(memory): ignore CPU and DMA writes to unused I/O addresses 2026-10-14 14:28:41 +07:00
serial_internal.rs feat(serial): clock disconnected normal transfers and completion IRQs 2026-10-07 04:23:07 +07:00
serial_joybus.rs feat(serial): support disconnected Joybus configuration and local registers 2026-10-07 06:38:04 +07:00
serial_multiplayer.rs feat(serial): model disconnected multiplayer configuration 2026-10-07 05:06:49 +07:00
sprite_budget.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
sprite_pipeline.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
sprites.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00
sram.rs feat(cartridge): add 32 KiB SRAM save memory 2026-10-14 14:28:41 +07:00
stop.rs fix(memory): ignore CPU and DMA writes to unused I/O addresses 2026-10-14 14:28:41 +07:00
tiles.rs fix(video): read BG maps and tiles through the 128 KiB VRAM mirror window 2026-10-07 10:11:51 +07:00
timer_prescaler.rs fix(timers): retain shared free-running prescaler phase 2026-10-06 22:07:49 +07:00
timers.rs fix(timers): retain shared free-running prescaler phase 2026-10-06 22:07:49 +07:00
timing.rs feat(cartridge): add explicit Flash identification and banked reads 2026-10-07 06:25:43 +07:00
video_bus_cpu.rs test(memory): integrate pinned public memory compatibility suite 2026-10-05 21:19:32 +07:00
wave_sound.rs feat(audio): add single-bank wave channel playback 2026-10-07 06:58:46 +07:00
window_tracking.rs refactor: split into gameboy-rust workspace with core, demos, and desktop crates 2026-10-05 16:09:46 +07:00