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86 lines
2.0 KiB
C++
86 lines
2.0 KiB
C++
//
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// DiskController.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 14/01/2020.
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// Copyright © 2020 Thomas Harte. All rights reserved.
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//
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#ifndef DiskController_h
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#define DiskController_h
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namespace Oric {
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class DiskController: public WD::WD1770 {
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public:
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DiskController(WD::WD1770::Personality personality, int clock_rate) :
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WD::WD1770(personality), clock_rate_(clock_rate) {}
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void set_disk(std::shared_ptr<Storage::Disk::Disk> disk, int d) {
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const size_t drive = size_t(d);
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if(!drives_[drive]) {
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drives_[drive] = std::make_unique<Storage::Disk::Drive>(clock_rate_, 300, 2);
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if(drive == selected_drive_) set_drive(drives_[drive]);
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}
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drives_[drive]->set_disk(disk);
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}
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enum class PagedItem {
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DiskROM,
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BASIC,
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RAM
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};
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struct Delegate: public WD1770::Delegate {
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virtual void disk_controller_did_change_paged_item(DiskController *controller) = 0;
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};
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inline void set_delegate(Delegate *delegate) {
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delegate_ = delegate;
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WD1770::set_delegate(delegate);
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if(delegate) delegate->disk_controller_did_change_paged_item(this);
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}
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inline PagedItem get_paged_item() {
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return paged_item_;
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}
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protected:
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inline void set_paged_item(PagedItem item) {
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if(paged_item_ == item) return;
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paged_item_ = item;
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if(delegate_) {
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delegate_->disk_controller_did_change_paged_item(this);
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}
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}
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std::array<std::shared_ptr<Storage::Disk::Drive>, 4> drives_;
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size_t selected_drive_;
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void select_drive(size_t drive) {
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if(drive != selected_drive_) {
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selected_drive_ = drive;
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set_drive(drives_[selected_drive_]);
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}
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}
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Delegate *delegate_ = nullptr;
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bool enable_overlay_ram_ = false;
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bool disable_basic_rom_ = false;
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void select_paged_item() {
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PagedItem item = PagedItem::RAM;
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if(!enable_overlay_ram_) {
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item = disable_basic_rom_ ? PagedItem::DiskROM : PagedItem::BASIC;
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}
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set_paged_item(item);
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}
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private:
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PagedItem paged_item_ = PagedItem::DiskROM;
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int clock_rate_;
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};
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};
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#endif /* DiskController_h */
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