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Avoid synchronisation issues on inputs_.

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This commit is contained in:
Thomas Harte
2026-02-18 13:18:24 -05:00
parent 91a735e4a0
commit 205e21ba21
2 changed files with 10 additions and 4 deletions
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Components/uPD7002/uPD7002.cpp
+4 -2
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@@ -24,7 +24,9 @@ void uPD7002::run_for(const HalfCycles count) {
if(count >= conversion_time_remaining_) {
conversion_time_remaining_ = HalfCycles(0);
result_ = uint16_t(inputs_[channel_] * 65535.0f) & (high_precision_ ? 0xfff0 : 0xff00);
result_ = uint16_t(
inputs_[channel_].load(std::memory_order_relaxed) * 65535.0f) & (high_precision_ ? 0xfff0 : 0xff00
);
set_interrupt(true);
return;
}
@@ -81,5 +83,5 @@ void uPD7002::set_interrupt(const bool value) {
}
void uPD7002::set_input(const int channel, const float value) {
inputs_[channel] = value;
inputs_[channel].store(value, std::memory_order_relaxed);
}
Components/uPD7002/uPD7002.hpp
+6 -2
View File
@@ -6,8 +6,12 @@
// Copyright © 2025 Thomas Harte. All rights reserved.
//
#pragma once
#include "ClockReceiver/ClockReceiver.hpp"
#include <atomic>
namespace NEC {
class uPD7002 {
@@ -21,7 +25,7 @@ public:
/// Defines a mean for an observer to receive notifications upon updates to the interrupt line.
struct Delegate {
virtual void did_change_interrupt_status(uPD7002 &) = 0;
virtual void did_change_interrupt_status(uPD7002 &) = 0;
};
void set_delegate(Delegate *);
@@ -33,7 +37,7 @@ public:
void set_input(int channel, float value);
private:
float inputs_[4]{};
std::atomic<float> inputs_[4]{};
uint16_t result_ = 0;
bool interrupt_ = false;