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https://github.com/StrikerX3/StrikeBox.git
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40 lines
811 B
C++
40 lines
811 B
C++
#pragma once
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#include <cstdint>
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#include <thread>
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#include "irq.h"
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#include "vixen/io.h"
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namespace vixen {
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#define PORT_PIT_DATA_0 0x40
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#define PORT_PIT_DATA_1 0x41
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#define PORT_PIT_DATA_2 0x42
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#define PORT_PIT_COMMAND 0x43
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#define PORT_PIT_BASE PORT_PIT_DATA_0
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#define PORT_PIT_COUNT (PORT_PIT_COMMAND - PORT_PIT_DATA_0 + 1)
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class i8254 : public IODevice {
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public:
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i8254(IRQHandler& irqHandler, float tickRate = 1000.0f);
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virtual ~i8254();
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void Reset();
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bool MapIO(IOMapper *mapper);
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bool IORead(uint32_t port, uint32_t *value, uint8_t size) override;
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bool IOWrite(uint32_t port, uint32_t value, uint8_t size) override;
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void Run();
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private:
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IRQHandler& m_irqHandler;
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float m_tickRate;
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bool m_running;
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std::thread m_timerThread;
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};
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}
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