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feat(apu): add timer/sequencer/LFSR fields for channel output tracking

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This commit is contained in:
Sergey Cherkasov
2026-03-13 16:06:37 +03:00
parent 6f81eb4b08
commit cd0a99a813
4 changed files with 66 additions and 1 deletions
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31
src/native_core/bus/state.rs
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@@ -112,6 +112,31 @@ impl NativeBus {
let frame_reset_delay = sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?;
let pending_frame_mode_5step = sio::take_u8(data, &mut cursor, BUS_STATE_CTX)? != 0;
let pending_frame_irq_inhibit = sio::take_u8(data, &mut cursor, BUS_STATE_CTX)? != 0;
let pulse_timer_counter = [
u16::from_le_bytes([
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
]),
u16::from_le_bytes([
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
]),
];
let mut pulse_duty_step = [0u8; 2];
pulse_duty_step.copy_from_slice(sio::take_exact(data, &mut cursor, 2, BUS_STATE_CTX)?);
let triangle_timer_counter = u16::from_le_bytes([
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
]);
let triangle_step = sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?;
let noise_timer_counter = u16::from_le_bytes([
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
]);
let noise_lfsr = u16::from_le_bytes([
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
sio::take_u8(data, &mut cursor, BUS_STATE_CTX)?,
]);
self.apu.load_state_tail(ApuStateTail {
frame_cycle,
frame_mode_5step,
@@ -143,6 +168,12 @@ impl NativeBus {
frame_reset_delay,
pending_frame_mode_5step,
pending_frame_irq_inhibit,
pulse_timer_counter,
pulse_duty_step,
triangle_timer_counter,
triangle_step,
noise_timer_counter,
noise_lfsr,
});
let mapper_len = sio::take_u32(data, &mut cursor, BUS_STATE_CTX)? as usize;
let mapper_state = sio::take_exact(data, &mut cursor, mapper_len, BUS_STATE_CTX)?;