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feat(audio): add single-bank wave channel playback

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0xrsydn 2026-10-07 06:49:32 +07:00
commit f496f12ea3
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docs/hardware/bios.md
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@ -253,7 +253,7 @@ Supported flags can be combined:
| 7 | Reset supported display, DMA, timer, and interrupt registers as described below |
All low-byte flag combinations, including `r0=0xff`, are accepted within the supported device subset.
This is not full audio or serial support. [wave channel 3](audio.md) and [serial transfers](serial.md) still fail explicitly.
This is not full audio or serial support. [Two-bank wave playback](audio.md) and [connected serial transfers](serial.md) remain unsupported.
Sound reset retains wave bank 0 and the separate in-flight playback word; exact firmware sound-reset equivalence is not established.
The firmware always clears the low halfword of SIODATA32, even when bit 5 is clear; its upper halfword is preserved.
@ -544,6 +544,6 @@ Unsupported SWIs, unsupported exception vectors, and null/misaligned IRQ callbac
The CPU reports `CpuError::UnsupportedInstruction` with `bios::UNSUPPORTED_TRAP`, rather than silently treating a service as a no-op.
Invalid arithmetic/decompression arguments use the same CPU error type with the distinct `bios::INVALID_ARGUMENT_TRAP` instruction.
Prior boot/service steps remain committed on failure.
PSG wave channel 3, host audio output, connected serial links, HardReset, and serial/Game Pak STOP wake-up remain unimplemented.
Two-bank wave playback, host audio output, connected serial links, HardReset, and serial/Game Pak STOP wake-up remain unimplemented.
Disconnected normal serial transfers use the [bounded serial model](serial.md); cancel active transfers before BIOS serial reset.
This subset is not sufficient for Pokémon Emerald compatibility.