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CLK/Machines/Acorn/Archimedes/FloppyDisc.hpp
2024-04-30 22:49:26 -04:00

52 lines
1.2 KiB
C++

//
// FloppyDisc.hpp
// Clock Signal
//
// Created by Thomas Harte on 07/04/2024.
// Copyright © 2024 Thomas Harte. All rights reserved.
//
#pragma once
#include "../../../Components/1770/1770.hpp"
namespace Archimedes {
template <typename InterruptObserverT>
class FloppyDisc: public WD::WD1770, public WD::WD1770::Delegate {
public:
FloppyDisc(InterruptObserverT &observer) : WD::WD1770(P1772), observer_(observer) {
emplace_drives(1, 8000000, 300, 2, Storage::Disk::Drive::ReadyType::ShugartModifiedRDY); // A guess at RDY type.
set_delegate(this);
}
void wd1770_did_change_output(WD::WD1770 *) override {
observer_.update_interrupts();
}
void set_control(uint8_t value) {
// b0, b1, b2, b3 = drive selects;
// b4 = side select;
// b5 = motor on/off
// b6 = floppy in use (i.e. LED?);
// b7 = disc eject/change reset.
set_drive((value & 0x1) ^ 0x1);
get_drive().set_head(1 ^ ((value >> 4) & 1));
get_drive().set_motor_on(!(value & 0x20));
}
void reset() {}
void set_disk(std::shared_ptr<Storage::Disk::Disk> disk, size_t drive) {
get_drive(drive).set_disk(disk);
}
bool ready() const {
return get_drive().get_is_ready();
}
private:
InterruptObserverT &observer_;
};
}