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feat(audio): implement PSG noise channel 4

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0xrsydn 2026-10-07 02:51:46 +07:00
commit 8ae7b3cf72
14 changed files with 774 additions and 75 deletions
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16
crates/gba-core/tests/direct_sound.rs
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@ -167,15 +167,13 @@ fn wave_banks_and_idle_channel_masks_preserve_explicit_limits() {
bus.write16(0x04000070, 0x40).unwrap();
assert_eq!(bus.read32(WAVE_RAM).unwrap(), 0);
bus.write32(WAVE_RAM, 0xaabbccdd).unwrap();
for address in [0x04000074, 0x0400007c] {
let previous = bus.read16(address).unwrap();
assert!(bus
.write16(address, 0xffff)
.unwrap_err()
.to_string()
.contains("PSG channel trigger"));
assert_eq!(bus.read16(address).unwrap(), previous);
}
let previous = bus.read16(0x04000074).unwrap();
assert!(bus
.write16(0x04000074, 0xffff)
.unwrap_err()
.to_string()
.contains("PSG channel trigger"));
assert_eq!(bus.read16(0x04000074).unwrap(), previous);
bus.write16(SOUNDCNT_X, 0).unwrap();
assert_eq!(bus.read32(WAVE_RAM).unwrap(), 0x11223344);
assert_eq!(bus.read16(0x04000062).unwrap(), 0);