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68 lines
1.5 KiB
C++
68 lines
1.5 KiB
C++
//
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// DMAController.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 26/10/2019.
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// Copyright © 2019 Thomas Harte. All rights reserved.
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//
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#ifndef DMAController_hpp
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#define DMAController_hpp
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#include <cstdint>
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#include <vector>
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#include "../../ClockReceiver/ClockReceiver.hpp"
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#include "../../Components/1770/1770.hpp"
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namespace Atari {
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namespace ST {
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class DMAController: public WD::WD1770::Delegate {
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public:
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DMAController();
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uint16_t read(int address);
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void write(int address, uint16_t value);
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void run_for(HalfCycles duration);
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bool get_interrupt_line();
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struct InterruptDelegate {
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virtual void dma_controller_did_change_interrupt_status(DMAController *) = 0;
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};
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void set_interrupt_delegate(InterruptDelegate *delegate);
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private:
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HalfCycles running_time_;
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struct WD1772: public WD::WD1770 {
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WD1772(): WD::WD1770(WD::WD1770::P1772) {
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drives_.emplace_back(new Storage::Disk::Drive(8000000, 300, 2));
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drives_.emplace_back(new Storage::Disk::Drive(8000000, 300, 2));
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set_drive(drives_[0]);
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}
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void set_motor_on(bool motor_on) final {
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drives_[0]->set_motor_on(motor_on);
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drives_[1]->set_motor_on(motor_on);
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}
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std::vector<std::shared_ptr<Storage::Disk::Drive>> drives_;
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} fdc_;
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void wd1770_did_change_output(WD::WD1770 *) final;
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uint16_t control_ = 0;
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uint32_t address_ = 0;
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uint16_t status_ = 0;
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uint16_t sector_count_ = 0;
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InterruptDelegate *interrupt_delegate_ = nullptr;
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bool interrupt_line_ = false;
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};
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}
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}
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#endif /* DMAController_hpp */
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