Merge pull request #458 from TomHarte/ApplePhase

Corrects NTSC Q phase

.travis.yml

@@ -1,5 +1,13 @@
-language: objective-c
-osx_image: xcode8.2
-xcode_project: OSBindings/Mac/Clock Signal.xcodeproj
-xcode_scheme: Clock Signal
-xcode_sdk: macosx10.12
+# language: objective-c
+# osx_image: xcode8.2
+# xcode_project: OSBindings/Mac/Clock Signal.xcodeproj
+# xcode_scheme: Clock Signal
+# xcode_sdk: macosx10.12
+
+language: cpp
+before_install:
+	- sudo apt-get install libsdl2-dev
+script: cd OSBindings/SDL && scons
+compiler:
+	- clang
+	- gcc

Activity/Observer.hpp

@@ -0,0 +1,51 @@
+//
+//  ActivityObserver.h
+//  Clock Signal
+//
+//  Created by Thomas Harte on 07/05/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef ActivityObserver_h
+#define ActivityObserver_h
+
+#include <string>
+
+namespace Activity {
+
+/*!
+	Provides a purely virtual base class for anybody that wants to receive notifications of
+	'activity': any feedback from an emulated system which a user could perceive other than
+	through the machine's native audio and video outputs.
+
+	So: status LEDs, drive activity, etc. A receiver may choose to make appropriate noises
+	and/or to show or unshow status indicators.
+*/
+class Observer {
+	public:
+		/// Announces to the receiver that there is an LED of name @c name.
+		virtual void register_led(const std::string &name) = 0;
+
+		/// Announces to the receiver that there is a drive of name @c name.
+		virtual void register_drive(const std::string &name) = 0;
+
+		/// Informs the receiver of the new state of the LED with name @c name.
+		virtual void set_led_status(const std::string &name, bool lit) = 0;
+
+		enum class DriveEvent {
+			StepNormal,
+			StepBelowZero,
+			StepBeyondMaximum
+		};
+
+		/// Informs the receiver that the named event just occurred for the drive with name @c name.
+		virtual void announce_drive_event(const std::string &name, DriveEvent event) = 0;
+
+		/// Informs the receiver of the motor-on status of the drive with name @c name.
+		virtual void set_drive_motor_status(const std::string &name, bool is_on) = 0;
+
+};
+
+}
+
+#endif /* ActivityObserver_h */

Activity/Source.hpp

@@ -0,0 +1,24 @@
+//
+//  ActivitySource.h
+//  Clock Signal
+//
+//  Created by Thomas Harte on 07/05/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef ActivitySource_h
+#define ActivitySource_h
+
+#include "Observer.hpp"
+
+namespace Activity {
+
+class Source {
+	public:
+		virtual void set_activity_observer(Observer *observer) = 0;
+};
+
+}
+
+
+#endif /* ActivitySource_h */

Analyser/Dynamic/ConfidenceCounter.cpp

@@ -0,0 +1,30 @@
+//
+//  ConfidenceCounter.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 21/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "ConfidenceCounter.hpp"
+
+using namespace Analyser::Dynamic;
+
+float ConfidenceCounter::get_confidence() {
+	return static_cast<float>(hits_) / static_cast<float>(hits_ + misses_);
+}
+
+void ConfidenceCounter::add_hit() {
+	hits_++;
+}
+
+void ConfidenceCounter::add_miss() {
+	misses_++;
+}
+
+void ConfidenceCounter::add_equivocal() {
+	if(hits_ > misses_) {
+		hits_++;
+		misses_++;
+	}
+}

Analyser/Dynamic/ConfidenceCounter.hpp

@@ -0,0 +1,47 @@
+//
+//  ConfidenceCounter.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 21/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef ConfidenceCounter_hpp
+#define ConfidenceCounter_hpp
+
+#include "ConfidenceSource.hpp"
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides a confidence source that calculates its probability by virtual of a history of events.
+
+	The initial value of the confidence counter is 0.5.
+*/
+class ConfidenceCounter: public ConfidenceSource {
+	public:
+		/*! @returns The computed probability, based on the history of events. */
+		float get_confidence() override;
+
+		/*! Records an event that implies this is the appropriate class: pushes probability up towards 1.0. */
+		void add_hit();
+
+		/*! Records an event that implies this is not the appropriate class: pushes probability down towards 0.0. */
+		void add_miss();
+
+		/*!
+			Records an event that could be correct but isn't necessarily so; which can push probability
+			down towards 0.5, but will never push it upwards.
+		*/
+		void add_equivocal();
+
+	private:
+		int hits_ = 1;
+		int misses_ = 1;
+};
+
+}
+}
+
+#endif /* ConfidenceCounter_hpp */

Analyser/Dynamic/ConfidenceSource.hpp

@@ -0,0 +1,28 @@
+//
+//  ConfidenceSource.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 21/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef ConfidenceSource_hpp
+#define ConfidenceSource_hpp
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides an abstract interface through which objects can declare the probability
+	that they are the proper target for their input; e.g. if an Acorn Electron is asked
+	to run an Atari 2600 program then its confidence should shrink towards 0.0; if the
+	program is handed to an Atari 2600 then its confidence should grow towards 1.0.
+*/
+struct ConfidenceSource {
+	virtual float get_confidence() = 0;
+};
+
+}
+}
+
+#endif /* ConfidenceSource_hpp */

Analyser/Dynamic/ConfidenceSummary.cpp

@@ -0,0 +1,28 @@
+//
+//  ConfidenceSummary.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 21/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "ConfidenceSummary.hpp"
+
+#include <cassert>
+#include <numeric>
+
+using namespace Analyser::Dynamic;
+
+ConfidenceSummary::ConfidenceSummary(const std::vector<ConfidenceSource *> &sources, const std::vector<float> &weights) :
+	sources_(sources), weights_(weights) {
+	assert(weights.size() == sources.size());
+	weight_sum_ = std::accumulate(weights.begin(), weights.end(), 0.0f);
+}
+
+float ConfidenceSummary::get_confidence() {
+	float result = 0.0f;
+	for(std::size_t index = 0; index < sources_.size(); ++index) {
+		result += sources_[index]->get_confidence() * weights_[index];
+	}
+	return result / weight_sum_;
+}

Analyser/Dynamic/ConfidenceSummary.hpp

@@ -0,0 +1,46 @@
+//
+//  ConfidenceSummary.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 21/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef ConfidenceSummary_hpp
+#define ConfidenceSummary_hpp
+
+#include "ConfidenceSource.hpp"
+
+#include <vector>
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Summaries a collection of confidence sources by calculating their weighted sum.
+*/
+class ConfidenceSummary: public ConfidenceSource {
+	public:
+		/*!
+			Instantiates a summary that will produce the weighted sum of
+			@c sources, each using the corresponding entry of @c weights.
+
+			Requires that @c sources and @c weights are of the same length.
+		*/
+		ConfidenceSummary(
+			const std::vector<ConfidenceSource *> &sources,
+			const std::vector<float> &weights);
+
+		/*! @returns The weighted sum of all sources. */
+		float get_confidence() override;
+
+	private:
+		std::vector<ConfidenceSource *> sources_;
+		std::vector<float> weights_;
+		float weight_sum_;
+};
+
+}
+}
+
+#endif /* ConfidenceSummary_hpp */

Analyser/Dynamic/MultiMachine/Implementation/MultiCRTMachine.cpp

@@ -0,0 +1,90 @@
+//
+//  MultiCRTMachine.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 29/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "MultiCRTMachine.hpp"
+
+#include <condition_variable>
+#include <mutex>
+
+using namespace Analyser::Dynamic;
+
+MultiCRTMachine::MultiCRTMachine(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines, std::mutex &machines_mutex) :
+	machines_(machines), machines_mutex_(machines_mutex), queues_(machines.size()) {
+	speaker_ = MultiSpeaker::create(machines);
+}
+
+void MultiCRTMachine::perform_parallel(const std::function<void(::CRTMachine::Machine *)> &function) {
+	// Apply a blunt force parallelisation of the machines; each run_for is dispatched
+	// to a separate queue and this queue will block until all are done.
+	volatile std::size_t outstanding_machines;
+	std::condition_variable condition;
+	std::mutex mutex;
+	{
+		std::lock_guard<std::mutex> machines_lock(machines_mutex_);
+		std::lock_guard<std::mutex> lock(mutex);
+		outstanding_machines = machines_.size();
+
+		for(std::size_t index = 0; index < machines_.size(); ++index) {
+			CRTMachine::Machine *crt_machine = machines_[index]->crt_machine();
+			queues_[index].enqueue([&mutex, &condition, crt_machine, function, &outstanding_machines]() {
+				if(crt_machine) function(crt_machine);
+
+				std::lock_guard<std::mutex> lock(mutex);
+				outstanding_machines--;
+				condition.notify_all();
+			});
+		}
+	}
+
+	std::unique_lock<std::mutex> lock(mutex);
+	condition.wait(lock, [&outstanding_machines] { return !outstanding_machines; });
+}
+
+void MultiCRTMachine::perform_serial(const std::function<void (::CRTMachine::Machine *)> &function) {
+	std::lock_guard<std::mutex> machines_lock(machines_mutex_);
+	for(const auto &machine: machines_) {
+		CRTMachine::Machine *crt_machine = machine->crt_machine();
+		if(crt_machine) function(crt_machine);
+	}
+}
+
+void MultiCRTMachine::setup_output(float aspect_ratio) {
+	perform_serial([=](::CRTMachine::Machine *machine) {
+		machine->setup_output(aspect_ratio);
+	});
+}
+
+void MultiCRTMachine::close_output() {
+	perform_serial([=](::CRTMachine::Machine *machine) {
+		machine->close_output();
+	});
+}
+
+Outputs::CRT::CRT *MultiCRTMachine::get_crt() {
+	std::lock_guard<std::mutex> machines_lock(machines_mutex_);
+	CRTMachine::Machine *crt_machine = machines_.front()->crt_machine();
+	return crt_machine ? crt_machine->get_crt() : nullptr;
+}
+
+Outputs::Speaker::Speaker *MultiCRTMachine::get_speaker() {
+	return speaker_;
+}
+
+void MultiCRTMachine::run_for(Time::Seconds duration) {
+	perform_parallel([=](::CRTMachine::Machine *machine) {
+		if(machine->get_confidence() >= 0.01f) machine->run_for(duration);
+	});
+
+	if(delegate_) delegate_->multi_crt_did_run_machines();
+}
+
+void MultiCRTMachine::did_change_machine_order() {
+	if(speaker_) {
+		speaker_->set_new_front_machine(machines_.front().get());
+	}
+}

Analyser/Dynamic/MultiMachine/Implementation/MultiCRTMachine.hpp

@@ -0,0 +1,89 @@
+//
+//  MultiCRTMachine.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 29/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef MultiCRTMachine_hpp
+#define MultiCRTMachine_hpp
+
+#include "../../../../Concurrency/AsyncTaskQueue.hpp"
+#include "../../../../Machines/CRTMachine.hpp"
+#include "../../../../Machines/DynamicMachine.hpp"
+
+#include "MultiSpeaker.hpp"
+
+#include <memory>
+#include <mutex>
+#include <vector>
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides a class that multiplexes the CRT machine interface to multiple machines.
+
+	Keeps a reference to the original vector of machines; will access it only after
+	acquiring a supplied mutex. The owner should also call did_change_machine_order()
+	if the order of machines changes.
+*/
+class MultiCRTMachine: public CRTMachine::Machine {
+	public:
+		MultiCRTMachine(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines, std::mutex &machines_mutex);
+
+		/*!
+			Informs the MultiCRTMachine that the order of machines has changed; the MultiCRTMachine
+			uses this as an opportunity to synthesis any CRTMachine::Machine::Delegate messages that
+			are necessary to bridge the gap between one machine and the next.
+		*/
+		void did_change_machine_order();
+
+		/*!
+			Provides a mechanism by which a delegate can be informed each time a call to run_for has
+			been received.
+		*/
+		struct Delegate {
+			virtual void multi_crt_did_run_machines() = 0;
+		};
+		/// Sets @c delegate as the receiver of delegate messages.
+		void set_delegate(Delegate *delegate) {
+			delegate_ = delegate;
+		}
+
+		// Below is the standard CRTMachine::Machine interface; see there for documentation.
+		void setup_output(float aspect_ratio) override;
+		void close_output() override;
+		Outputs::CRT::CRT *get_crt() override;
+		Outputs::Speaker::Speaker *get_speaker() override;
+		void run_for(Time::Seconds duration) override;
+
+	private:
+		void run_for(const Cycles cycles) override {}
+		const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines_;
+		std::mutex &machines_mutex_;
+		std::vector<Concurrency::AsyncTaskQueue> queues_;
+		MultiSpeaker *speaker_ = nullptr;
+		Delegate *delegate_ = nullptr;
+
+		/*!
+			Performs a parallel for operation across all machines, performing the supplied
+			function on each and returning only once all applications have completed.
+
+			No guarantees are extended as to which thread operations will occur on.
+		*/
+		void perform_parallel(const std::function<void(::CRTMachine::Machine *)> &);
+
+		/*!
+			Performs a serial for operation across all machines, performing the supplied
+			function on each on the calling thread.
+		*/
+		void perform_serial(const std::function<void(::CRTMachine::Machine *)> &);
+};
+
+}
+}
+
+
+#endif /* MultiCRTMachine_hpp */

Analyser/Dynamic/MultiMachine/Implementation/MultiConfigurable.cpp

@@ -0,0 +1,64 @@
+//
+//  MultiConfigurable.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "MultiConfigurable.hpp"
+
+#include <algorithm>
+
+using namespace Analyser::Dynamic;
+
+MultiConfigurable::MultiConfigurable(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines) {
+	for(const auto &machine: machines) {
+		Configurable::Device *device = machine->configurable_device();
+		if(device) devices_.push_back(device);
+	}
+}
+
+std::vector<std::unique_ptr<Configurable::Option>> MultiConfigurable::get_options() {
+	std::vector<std::unique_ptr<Configurable::Option>> options;
+
+	// Produce the list of unique options.
+	for(const auto &device : devices_) {
+		std::vector<std::unique_ptr<Configurable::Option>> device_options = device->get_options();
+		for(auto &option : device_options) {
+			if(std::find(options.begin(), options.end(), option) == options.end()) {
+				options.push_back(std::move(option));
+			}
+		}
+	}
+
+	return options;
+}
+
+void MultiConfigurable::set_selections(const Configurable::SelectionSet &selection_by_option) {
+	for(const auto &device : devices_) {
+		device->set_selections(selection_by_option);
+	}
+}
+
+Configurable::SelectionSet MultiConfigurable::get_accurate_selections() {
+	Configurable::SelectionSet set;
+	for(const auto &device : devices_) {
+		Configurable::SelectionSet device_set = device->get_accurate_selections();
+		for(auto &selection : device_set) {
+			set.insert(std::move(selection));
+		}
+	}
+	return set;
+}
+
+Configurable::SelectionSet MultiConfigurable::get_user_friendly_selections() {
+	Configurable::SelectionSet set;
+	for(const auto &device : devices_) {
+		Configurable::SelectionSet device_set = device->get_user_friendly_selections();
+		for(auto &selection : device_set) {
+			set.insert(std::move(selection));
+		}
+	}
+	return set;
+}

Analyser/Dynamic/MultiMachine/Implementation/MultiConfigurable.hpp

@@ -0,0 +1,43 @@
+//
+//  MultiConfigurable.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef MultiConfigurable_hpp
+#define MultiConfigurable_hpp
+
+#include "../../../../Machines/DynamicMachine.hpp"
+
+#include <memory>
+#include <vector>
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides a class that multiplexes the configurable interface to multiple machines.
+
+	Makes a static internal copy of the list of machines; makes no guarantees about the
+	order of delivered messages.
+*/
+class MultiConfigurable: public Configurable::Device {
+	public:
+		MultiConfigurable(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines);
+
+		// Below is the standard Configurable::Device interface; see there for documentation.
+		std::vector<std::unique_ptr<Configurable::Option>> get_options() override;
+		void set_selections(const Configurable::SelectionSet &selection_by_option) override;
+		Configurable::SelectionSet get_accurate_selections() override;
+		Configurable::SelectionSet get_user_friendly_selections() override;
+
+	private:
+		std::vector<Configurable::Device *> devices_;
+};
+
+}
+}
+
+#endif /* MultiConfigurable_hpp */

Analyser/Dynamic/MultiMachine/Implementation/MultiConfigurationTarget.cpp

@@ -0,0 +1,29 @@
+//
+//  MultiConfigurationTarget.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 29/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "MultiConfigurationTarget.hpp"
+
+using namespace Analyser::Dynamic;
+
+MultiConfigurationTarget::MultiConfigurationTarget(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines) {
+	for(const auto &machine: machines) {
+		ConfigurationTarget::Machine *configuration_target = machine->configuration_target();
+		if(configuration_target) targets_.push_back(configuration_target);
+	}
+}
+
+void MultiConfigurationTarget::configure_as_target(const Analyser::Static::Target *target) {
+}
+
+bool MultiConfigurationTarget::insert_media(const Analyser::Static::Media &media) {
+	bool inserted = false;
+	for(const auto &target : targets_) {
+		inserted |= target->insert_media(media);
+	}
+	return inserted;
+}

Analyser/Dynamic/MultiMachine/Implementation/MultiConfigurationTarget.hpp

@@ -0,0 +1,42 @@
+//
+//  MultiConfigurationTarget.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 29/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef MultiConfigurationTarget_hpp
+#define MultiConfigurationTarget_hpp
+
+#include "../../../../Machines/ConfigurationTarget.hpp"
+#include "../../../../Machines/DynamicMachine.hpp"
+
+#include <memory>
+#include <vector>
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides a class that multiplexes the configuration target interface to multiple machines.
+
+	Makes a static internal copy of the list of machines; makes no guarantees about the
+	order of delivered messages.
+*/
+struct MultiConfigurationTarget: public ConfigurationTarget::Machine {
+	public:
+		MultiConfigurationTarget(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines);
+
+		// Below is the standard ConfigurationTarget::Machine interface; see there for documentation.
+		void configure_as_target(const Analyser::Static::Target *target) override;
+		bool insert_media(const Analyser::Static::Media &media) override;
+
+	private:
+		std::vector<ConfigurationTarget::Machine *> targets_;
+};
+
+}
+}
+
+#endif /* MultiConfigurationTarget_hpp */

Analyser/Dynamic/MultiMachine/Implementation/MultiJoystickMachine.cpp

@@ -0,0 +1,78 @@
+//
+//  MultiJoystickMachine.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "MultiJoystickMachine.hpp"
+
+#include <algorithm>
+
+using namespace Analyser::Dynamic;
+
+namespace {
+
+class MultiJoystick: public Inputs::Joystick {
+	public:
+		MultiJoystick(std::vector<JoystickMachine::Machine *> &machines, std::size_t index) {
+			for(const auto &machine: machines) {
+				const auto &joysticks = machine->get_joysticks();
+				if(joysticks.size() >= index) {
+					joysticks_.push_back(joysticks[index].get());
+				}
+			}
+		}
+
+		std::vector<DigitalInput> get_inputs() override {
+			std::vector<DigitalInput> inputs;
+
+			for(const auto &joystick: joysticks_) {
+				std::vector<DigitalInput> joystick_inputs = joystick->get_inputs();
+				for(const auto &input: joystick_inputs) {
+					if(std::find(inputs.begin(), inputs.end(), input) != inputs.end()) {
+						inputs.push_back(input);
+					}
+				}
+			}
+
+			return inputs;
+		}
+
+		void set_digital_input(const DigitalInput &digital_input, bool is_active) override {
+			for(const auto &joystick: joysticks_) {
+				joystick->set_digital_input(digital_input, is_active);
+			}
+		}
+		void reset_all_inputs() override {
+			for(const auto &joystick: joysticks_) {
+				joystick->reset_all_inputs();
+			}
+		}
+
+	private:
+		std::vector<Inputs::Joystick *> joysticks_;
+};
+
+}
+
+MultiJoystickMachine::MultiJoystickMachine(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines) {
+	std::size_t total_joysticks = 0;
+	std::vector<JoystickMachine::Machine *> joystick_machines;
+	for(const auto &machine: machines) {
+		JoystickMachine::Machine *joystick_machine = machine->joystick_machine();
+		if(joystick_machine) {
+			joystick_machines.push_back(joystick_machine);
+			total_joysticks = std::max(total_joysticks, joystick_machine->get_joysticks().size());
+		}
+	}
+
+	for(std::size_t index = 0; index < total_joysticks; ++index) {
+		joysticks_.emplace_back(new MultiJoystick(joystick_machines, index));
+	}
+}
+
+std::vector<std::unique_ptr<Inputs::Joystick>> &MultiJoystickMachine::get_joysticks() {
+	return joysticks_;
+}

Analyser/Dynamic/MultiMachine/Implementation/MultiJoystickMachine.hpp

@@ -0,0 +1,40 @@
+//
+//  MultiJoystickMachine.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef MultiJoystickMachine_hpp
+#define MultiJoystickMachine_hpp
+
+#include "../../../../Machines/DynamicMachine.hpp"
+
+#include <memory>
+#include <vector>
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides a class that multiplexes the joystick machine interface to multiple machines.
+
+	Makes a static internal copy of the list of machines; makes no guarantees about the
+	order of delivered messages.
+*/
+class MultiJoystickMachine: public JoystickMachine::Machine {
+	public:
+		MultiJoystickMachine(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines);
+
+		// Below is the standard JoystickMachine::Machine interface; see there for documentation.
+		std::vector<std::unique_ptr<Inputs::Joystick>> &get_joysticks() override;
+
+	private:
+		std::vector<std::unique_ptr<Inputs::Joystick>> joysticks_;
+};
+
+}
+}
+
+#endif /* MultiJoystickMachine_hpp */

Analyser/Dynamic/MultiMachine/Implementation/MultiKeyboardMachine.cpp

@@ -0,0 +1,43 @@
+//
+//  MultiKeyboardMachine.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "MultiKeyboardMachine.hpp"
+
+using namespace Analyser::Dynamic;
+
+MultiKeyboardMachine::MultiKeyboardMachine(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines) {
+	for(const auto &machine: machines) {
+		KeyboardMachine::Machine *keyboard_machine = machine->keyboard_machine();
+		if(keyboard_machine) machines_.push_back(keyboard_machine);
+	}
+}
+
+void MultiKeyboardMachine::clear_all_keys() {
+	for(const auto &machine: machines_) {
+		machine->clear_all_keys();
+	}
+}
+
+void MultiKeyboardMachine::set_key_state(uint16_t key, bool is_pressed) {
+	for(const auto &machine: machines_) {
+		machine->set_key_state(key, is_pressed);
+	}
+}
+
+void MultiKeyboardMachine::type_string(const std::string &string) {
+	for(const auto &machine: machines_) {
+		machine->type_string(string);
+	}
+}
+
+void MultiKeyboardMachine::keyboard_did_change_key(Inputs::Keyboard *keyboard, Inputs::Keyboard::Key key, bool is_pressed) {
+	for(const auto &machine: machines_) {
+		uint16_t mapped_key = machine->get_keyboard_mapper()->mapped_key_for_key(key);
+		if(mapped_key != KeyNotMapped) machine->set_key_state(mapped_key, is_pressed);
+	}
+}

Analyser/Dynamic/MultiMachine/Implementation/MultiKeyboardMachine.hpp

@@ -0,0 +1,44 @@
+//
+//  MultiKeyboardMachine.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef MultiKeyboardMachine_hpp
+#define MultiKeyboardMachine_hpp
+
+#include "../../../../Machines/DynamicMachine.hpp"
+#include "../../../../Machines/KeyboardMachine.hpp"
+
+#include <memory>
+#include <vector>
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides a class that multiplexes the keyboard machine interface to multiple machines.
+
+	Makes a static internal copy of the list of machines; makes no guarantees about the
+	order of delivered messages.
+*/
+class MultiKeyboardMachine: public KeyboardMachine::Machine {
+	public:
+		MultiKeyboardMachine(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines);
+
+		// Below is the standard KeyboardMachine::Machine interface; see there for documentation.
+		void clear_all_keys() override;
+		void set_key_state(uint16_t key, bool is_pressed) override;
+		void type_string(const std::string &) override;
+		void keyboard_did_change_key(Inputs::Keyboard *keyboard, Inputs::Keyboard::Key key, bool is_pressed) override;
+
+	private:
+		std::vector<::KeyboardMachine::Machine *> machines_;
+};
+
+}
+}
+
+#endif /* MultiKeyboardMachine_hpp */

Analyser/Dynamic/MultiMachine/Implementation/MultiSpeaker.cpp

@@ -0,0 +1,76 @@
+//
+//  MultiSpeaker.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 18/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "MultiSpeaker.hpp"
+
+using namespace Analyser::Dynamic;
+
+MultiSpeaker *MultiSpeaker::create(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines) {
+	std::vector<Outputs::Speaker::Speaker *> speakers;
+	for(const auto &machine: machines) {
+		Outputs::Speaker::Speaker *speaker = machine->crt_machine()->get_speaker();
+		if(speaker) speakers.push_back(speaker);
+	}
+	if(speakers.empty()) return nullptr;
+
+	return new MultiSpeaker(speakers);
+}
+
+MultiSpeaker::MultiSpeaker(const std::vector<Outputs::Speaker::Speaker *> &speakers) :
+	speakers_(speakers), front_speaker_(speakers.front()) {
+	for(const auto &speaker: speakers_) {
+		speaker->set_delegate(this);
+	}
+}
+
+float MultiSpeaker::get_ideal_clock_rate_in_range(float minimum, float maximum) {
+	float ideal = 0.0f;
+	for(const auto &speaker: speakers_) {
+		ideal += speaker->get_ideal_clock_rate_in_range(minimum, maximum);
+	}
+
+	return ideal / static_cast<float>(speakers_.size());
+}
+
+void MultiSpeaker::set_output_rate(float cycles_per_second, int buffer_size) {
+	for(const auto &speaker: speakers_) {
+		speaker->set_output_rate(cycles_per_second, buffer_size);
+	}
+}
+
+void MultiSpeaker::set_delegate(Outputs::Speaker::Speaker::Delegate *delegate) {
+	delegate_ = delegate;
+}
+
+void MultiSpeaker::speaker_did_complete_samples(Speaker *speaker, const std::vector<int16_t> &buffer) {
+	if(!delegate_) return;
+	{
+		std::lock_guard<std::mutex> lock_guard(front_speaker_mutex_);
+		if(speaker != front_speaker_) return;
+	}
+	delegate_->speaker_did_complete_samples(this, buffer);
+}
+
+void MultiSpeaker::speaker_did_change_input_clock(Speaker *speaker) {
+	if(!delegate_) return;
+	{
+		std::lock_guard<std::mutex> lock_guard(front_speaker_mutex_);
+		if(speaker != front_speaker_) return;
+	}
+	delegate_->speaker_did_change_input_clock(this);
+}
+
+void MultiSpeaker::set_new_front_machine(::Machine::DynamicMachine *machine) {
+	{
+		std::lock_guard<std::mutex> lock_guard(front_speaker_mutex_);
+		front_speaker_ = machine->crt_machine()->get_speaker();
+	}
+	if(delegate_) {
+		delegate_->speaker_did_change_input_clock(this);
+	}
+}

Analyser/Dynamic/MultiMachine/Implementation/MultiSpeaker.hpp

@@ -0,0 +1,59 @@
+//
+//  MultiSpeaker.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 18/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef MultiSpeaker_hpp
+#define MultiSpeaker_hpp
+
+#include "../../../../Machines/DynamicMachine.hpp"
+#include "../../../../Outputs/Speaker/Speaker.hpp"
+
+#include <memory>
+#include <mutex>
+#include <vector>
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides a class that multiplexes calls to and from Outputs::Speaker::Speaker in order
+	transparently to connect a single caller to multiple destinations.
+
+	Makes a static internal copy of the list of machines; expects the owner to keep it
+	abreast of the current frontmost machine.
+*/
+class MultiSpeaker: public Outputs::Speaker::Speaker, Outputs::Speaker::Speaker::Delegate {
+	public:
+		/*!
+			Provides a construction mechanism that may return nullptr, in the case that all included
+			machines return nullptr as their speaker.
+		*/
+		static MultiSpeaker *create(const std::vector<std::unique_ptr<::Machine::DynamicMachine>> &machines);
+
+		/// This class requires the caller to nominate changes in the frontmost machine.
+		void set_new_front_machine(::Machine::DynamicMachine *machine);
+
+		// Below is the standard Outputs::Speaker::Speaker interface; see there for documentation.
+		float get_ideal_clock_rate_in_range(float minimum, float maximum) override;
+		void set_output_rate(float cycles_per_second, int buffer_size) override;
+		void set_delegate(Outputs::Speaker::Speaker::Delegate *delegate) override;
+
+	private:
+		void speaker_did_complete_samples(Speaker *speaker, const std::vector<int16_t> &buffer) override;
+		void speaker_did_change_input_clock(Speaker *speaker) override;
+		MultiSpeaker(const std::vector<Outputs::Speaker::Speaker *> &speakers);
+
+		std::vector<Outputs::Speaker::Speaker *> speakers_;
+		Outputs::Speaker::Speaker *front_speaker_ = nullptr;
+		Outputs::Speaker::Speaker::Delegate *delegate_ = nullptr;
+		std::mutex front_speaker_mutex_;
+};
+
+}
+}
+
+#endif /* MultiSpeaker_hpp */

Analyser/Dynamic/MultiMachine/MultiMachine.cpp

@@ -0,0 +1,113 @@
+//
+//  MultiMachine.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 28/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "MultiMachine.hpp"
+
+#include <algorithm>
+
+using namespace Analyser::Dynamic;
+
+MultiMachine::MultiMachine(std::vector<std::unique_ptr<DynamicMachine>> &&machines) :
+	machines_(std::move(machines)),
+	configurable_(machines_),
+	configuration_target_(machines_),
+	crt_machine_(machines_, machines_mutex_),
+	joystick_machine_(machines),
+	keyboard_machine_(machines_) {
+	crt_machine_.set_delegate(this);
+}
+
+Activity::Source *MultiMachine::activity_source() {
+	return nullptr; // TODO
+}
+
+ConfigurationTarget::Machine *MultiMachine::configuration_target() {
+	if(has_picked_) {
+		return machines_.front()->configuration_target();
+	} else {
+		return &configuration_target_;
+	}
+}
+
+CRTMachine::Machine *MultiMachine::crt_machine() {
+	if(has_picked_) {
+		return machines_.front()->crt_machine();
+	} else {
+		return &crt_machine_;
+	}
+}
+
+JoystickMachine::Machine *MultiMachine::joystick_machine() {
+	if(has_picked_) {
+		return machines_.front()->joystick_machine();
+	} else {
+		return &joystick_machine_;
+	}
+}
+
+KeyboardMachine::Machine *MultiMachine::keyboard_machine() {
+	if(has_picked_) {
+		return machines_.front()->keyboard_machine();
+	} else {
+		return &keyboard_machine_;
+	}
+}
+
+Configurable::Device *MultiMachine::configurable_device() {
+	if(has_picked_) {
+		return machines_.front()->configurable_device();
+	} else {
+		return &configurable_;
+	}
+}
+
+bool MultiMachine::would_collapse(const std::vector<std::unique_ptr<DynamicMachine>> &machines) {
+	return
+		(machines.front()->crt_machine()->get_confidence() > 0.9f) ||
+		(machines.front()->crt_machine()->get_confidence() >= 2.0f * machines[1]->crt_machine()->get_confidence());
+}
+
+void MultiMachine::multi_crt_did_run_machines() {
+	std::lock_guard<std::mutex> machines_lock(machines_mutex_);
+#ifdef DEBUG
+	for(const auto &machine: machines_) {
+		CRTMachine::Machine *crt = machine->crt_machine();
+		printf("%0.2f ", crt->get_confidence());
+		crt->print_type();
+		printf("; ");
+	}
+	printf("\n");
+#endif
+
+	DynamicMachine *front = machines_.front().get();
+	std::stable_sort(machines_.begin(), machines_.end(),
+		[] (const std::unique_ptr<DynamicMachine> &lhs, const std::unique_ptr<DynamicMachine> &rhs){
+			CRTMachine::Machine *lhs_crt = lhs->crt_machine();
+			CRTMachine::Machine *rhs_crt = rhs->crt_machine();
+			return lhs_crt->get_confidence() > rhs_crt->get_confidence();
+		});
+
+	if(machines_.front().get() != front) {
+		crt_machine_.did_change_machine_order();
+	}
+
+	if(would_collapse(machines_)) {
+		pick_first();
+	}
+}
+
+void MultiMachine::pick_first() {
+	has_picked_ = true;
+//	machines_.erase(machines_.begin() + 1, machines_.end());
+	// TODO: this isn't quite correct, because it may leak OpenGL/etc resources through failure to
+	// request a close_output while the context is active.
+}
+
+void *MultiMachine::raw_pointer() {
+	return nullptr;
+}

Analyser/Dynamic/MultiMachine/MultiMachine.hpp

@@ -0,0 +1,80 @@
+//
+//  MultiMachine.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 28/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef MultiMachine_hpp
+#define MultiMachine_hpp
+
+#include "../../../Machines/DynamicMachine.hpp"
+
+#include "Implementation/MultiConfigurable.hpp"
+#include "Implementation/MultiConfigurationTarget.hpp"
+#include "Implementation/MultiCRTMachine.hpp"
+#include "Implementation/MultiJoystickMachine.hpp"
+#include "Implementation/MultiKeyboardMachine.hpp"
+
+#include <memory>
+#include <mutex>
+#include <vector>
+
+namespace Analyser {
+namespace Dynamic {
+
+/*!
+	Provides the same interface as to a single machine, while multiplexing all
+	underlying calls to an array of real dynamic machines.
+
+	Calls to crt_machine->get_crt will return that for the frontmost machine;
+	anything installed as the speaker's delegate will similarly receive
+	feedback only from that machine.
+
+	Following each crt_machine->run_for, reorders the supplied machines by
+	confidence.
+
+	If confidence for any machine becomes disproportionately low compared to
+	the others in the set, that machine stops running.
+*/
+class MultiMachine: public ::Machine::DynamicMachine, public MultiCRTMachine::Delegate {
+	public:
+		/*!
+			Allows a potential MultiMachine creator to enquire as to whether there's any benefit in
+			requesting this class as a proxy.
+
+			@returns @c true if the multimachine would discard all but the first machine in this list;
+				@c false otherwise.
+		*/
+		static bool would_collapse(const std::vector<std::unique_ptr<DynamicMachine>> &machines);
+		MultiMachine(std::vector<std::unique_ptr<DynamicMachine>> &&machines);
+
+		Activity::Source *activity_source() override;
+		ConfigurationTarget::Machine *configuration_target() override;
+		CRTMachine::Machine *crt_machine() override;
+		JoystickMachine::Machine *joystick_machine() override;
+		KeyboardMachine::Machine *keyboard_machine() override;
+		Configurable::Device *configurable_device() override;
+		void *raw_pointer() override;
+
+	private:
+		void multi_crt_did_run_machines() override;
+
+		std::vector<std::unique_ptr<DynamicMachine>> machines_;
+		std::mutex machines_mutex_;
+
+		MultiConfigurable configurable_;
+		MultiConfigurationTarget configuration_target_;
+		MultiCRTMachine crt_machine_;
+		MultiJoystickMachine joystick_machine_;
+		MultiKeyboardMachine keyboard_machine_;
+
+		void pick_first();
+		bool has_picked_ = false;
+};
+
+}
+}
+
+#endif /* MultiMachine_hpp */

Analyser/Machines.hpp

@@ -0,0 +1,28 @@
+//
+//  Machines.h
+//  Clock Signal
+//
+//  Created by Thomas Harte on 24/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Machines_h
+#define Machines_h
+
+namespace Analyser {
+
+enum class Machine {
+	AmstradCPC,
+	AppleII,
+	Atari2600,
+	ColecoVision,
+	Electron,
+	MSX,
+	Oric,
+	Vic20,
+	ZX8081
+};
+
+}
+
+#endif /* Machines_h */

Analyser/Static/Acorn/Disk.cpp

@@ -3,18 +3,20 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 18/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "Disk.hpp"
-#include "../../Storage/Disk/Controller/DiskController.hpp"
-#include "../../Storage/Disk/Encodings/MFM/Parser.hpp"
-#include "../../NumberTheory/CRC.hpp"
+
+#include "../../../Storage/Disk/Controller/DiskController.hpp"
+#include "../../../Storage/Disk/Encodings/MFM/Parser.hpp"
+#include "../../../NumberTheory/CRC.hpp"
+
 #include <algorithm>
 
-using namespace StaticAnalyser::Acorn;
+using namespace Analyser::Static::Acorn;
 
-std::unique_ptr<Catalogue> StaticAnalyser::Acorn::GetDFSCatalogue(const std::shared_ptr<Storage::Disk::Disk> &disk) {
+std::unique_ptr<Catalogue> Analyser::Static::Acorn::GetDFSCatalogue(const std::shared_ptr<Storage::Disk::Disk> &disk) {
 	// c.f. http://beebwiki.mdfs.net/Acorn_DFS_disc_format
 	std::unique_ptr<Catalogue> catalogue(new Catalogue);
 	Storage::Encodings::MFM::Parser parser(false, disk);
@@ -41,9 +43,7 @@ std::unique_ptr<Catalogue> StaticAnalyser::Acorn::GetDFSCatalogue(const std::sha
 		case 3: catalogue->bootOption = Catalogue::BootOption::ExecBOOT;	break;
 	}
 
-	// DFS files are stored contiguously, and listed in descending order of distance from track 0.
-	// So iterating backwards implies the least amount of seeking.
-	for(std::size_t file_offset = final_file_offset - 8; file_offset > 0; file_offset -= 8) {
+	for(std::size_t file_offset = 8; file_offset < final_file_offset; file_offset += 8) {
 		File new_file;
 		char name[10];
 		snprintf(name, 10, "%c.%.7s", names->samples[0][file_offset + 7] & 0x7f, &names->samples[0][file_offset]);
@@ -69,12 +69,12 @@ std::unique_ptr<Catalogue> StaticAnalyser::Acorn::GetDFSCatalogue(const std::sha
 			new_file.data.insert(new_file.data.end(), next_sector->samples[0].begin(), next_sector->samples[0].begin() + length_from_sector);
 			data_length -= length_from_sector;
 		}
-		if(!data_length) catalogue->files.push_front(new_file);
+		if(!data_length) catalogue->files.push_back(new_file);
 	}
 
 	return catalogue;
 }
-std::unique_ptr<Catalogue> StaticAnalyser::Acorn::GetADFSCatalogue(const std::shared_ptr<Storage::Disk::Disk> &disk) {
+std::unique_ptr<Catalogue> Analyser::Static::Acorn::GetADFSCatalogue(const std::shared_ptr<Storage::Disk::Disk> &disk) {
 	std::unique_ptr<Catalogue> catalogue(new Catalogue);
 	Storage::Encodings::MFM::Parser parser(true, disk);
 

Analyser/Static/Acorn/Disk.hpp

@@ -3,22 +3,23 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 18/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Acorn_Disk_hpp
 #define StaticAnalyser_Acorn_Disk_hpp
 
 #include "File.hpp"
-#include "../../Storage/Disk/Disk.hpp"
+#include "../../../Storage/Disk/Disk.hpp"
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Acorn {
 
-/// Describes a DFS- or ADFS-format catalogue(/directory) — the list of files available and the catalogue's boot option.
+/// Describes a DFS- or ADFS-format catalogue(/directory): the list of files available and the catalogue's boot option.
 struct Catalogue {
 	std::string name;
-	std::list<File> files;
+	std::vector<File> files;
 	enum class BootOption {
 		None,
 		LoadBOOT,
@@ -30,6 +31,7 @@ struct Catalogue {
 std::unique_ptr<Catalogue> GetDFSCatalogue(const std::shared_ptr<Storage::Disk::Disk> &disk);
 std::unique_ptr<Catalogue> GetADFSCatalogue(const std::shared_ptr<Storage::Disk::Disk> &disk);
 
+}
 }
 }
 

Analyser/Static/Acorn/File.hpp

@@ -3,18 +3,18 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 18/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Acorn_File_hpp
 #define StaticAnalyser_Acorn_File_hpp
 
-#include <list>
 #include <memory>
 #include <string>
 #include <vector>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Acorn {
 
 struct File {
@@ -38,9 +38,10 @@ struct File {
 		std::vector<uint8_t> data;
 	};
 
-	std::list<Chunk> chunks;
+	std::vector<Chunk> chunks;
 };
 
+}
 }
 }
 

Analyser/Static/Acorn/StaticAnalyser.cpp

@@ -3,19 +3,20 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 29/08/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "StaticAnalyser.hpp"
 
 #include "Disk.hpp"
 #include "Tape.hpp"
+#include "Target.hpp"
 
-using namespace StaticAnalyser::Acorn;
+using namespace Analyser::Static::Acorn;
 
-static std::list<std::shared_ptr<Storage::Cartridge::Cartridge>>
-		AcornCartridgesFrom(const std::list<std::shared_ptr<Storage::Cartridge::Cartridge>> &cartridges) {
-	std::list<std::shared_ptr<Storage::Cartridge::Cartridge>> acorn_cartridges;
+static std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>>
+		AcornCartridgesFrom(const std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>> &cartridges) {
+	std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>> acorn_cartridges;
 
 	for(const auto &cartridge : cartridges) {
 		const auto &segments = cartridge->get_segments();
@@ -49,28 +50,28 @@ static std::list<std::shared_ptr<Storage::Cartridge::Cartridge>>
 		//		1/(2^32) *
 		//		( ((2^24)-1)/(2^24)*(1/4)		+		1/(2^24)	) *
 		//		1/4
-		//	= something very improbable — around 1/16th of 1 in 2^32, but not exactly.
+		//	= something very improbable, around 1/16th of 1 in 2^32, but not exactly.
 		acorn_cartridges.push_back(cartridge);
 	}
 
 	return acorn_cartridges;
 }
 
-void StaticAnalyser::Acorn::AddTargets(const Media &media, std::list<Target> &destination) {
-	Target target;
-	target.machine = Target::Electron;
-	target.probability = 1.0; // TODO: a proper estimation
-	target.acorn.has_dfs = false;
-	target.acorn.has_adfs = false;
-	target.acorn.should_shift_restart = false;
+Analyser::Static::TargetList Analyser::Static::Acorn::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	std::unique_ptr<Target> target(new Target);
+	target->machine = Machine::Electron;
+	target->confidence = 0.5; // TODO: a proper estimation
+	target->has_dfs = false;
+	target->has_adfs = false;
+	target->should_shift_restart = false;
 
 	// strip out inappropriate cartridges
-	target.media.cartridges = AcornCartridgesFrom(media.cartridges);
+	target->media.cartridges = AcornCartridgesFrom(media.cartridges);
 
 	// if there are any tapes, attempt to get data from the first
 	if(media.tapes.size() > 0) {
 		std::shared_ptr<Storage::Tape::Tape> tape = media.tapes.front();
-		std::list<File> files = GetFiles(tape);
+		std::vector<File> files = GetFiles(tape);
 		tape->reset();
 
 		// continue if there are any files
@@ -96,9 +97,9 @@ void StaticAnalyser::Acorn::AddTargets(const Media &media, std::list<Target> &de
 
 			// Inspect first file. If it's protected or doesn't look like BASIC
 			// then the loading command is *RUN. Otherwise it's CHAIN"".
-			target.loading_command = is_basic ? "CHAIN\"\"\n" : "*RUN\n";
+			target->loading_command = is_basic ? "CHAIN\"\"\n" : "*RUN\n";
 
-			target.media.tapes = media.tapes;
+			target->media.tapes = media.tapes;
 		}
 	}
 
@@ -108,18 +109,21 @@ void StaticAnalyser::Acorn::AddTargets(const Media &media, std::list<Target> &de
 		dfs_catalogue = GetDFSCatalogue(disk);
 		if(dfs_catalogue == nullptr) adfs_catalogue = GetADFSCatalogue(disk);
 		if(dfs_catalogue || adfs_catalogue) {
-			target.media.disks = media.disks;
-			target.acorn.has_dfs = !!dfs_catalogue;
-			target.acorn.has_adfs = !!adfs_catalogue;
+			target->media.disks = media.disks;
+			target->has_dfs = !!dfs_catalogue;
+			target->has_adfs = !!adfs_catalogue;
 
 			Catalogue::BootOption bootOption = (dfs_catalogue ?: adfs_catalogue)->bootOption;
 			if(bootOption != Catalogue::BootOption::None)
-				target.acorn.should_shift_restart = true;
+				target->should_shift_restart = true;
 			else
-				target.loading_command = "*CAT\n";
+				target->loading_command = "*CAT\n";
 		}
 	}
 
-	if(target.media.tapes.size() || target.media.disks.size() || target.media.cartridges.size())
-		destination.push_back(target);
+	TargetList targets;
+	if(!target->media.empty()) {
+		targets.push_back(std::move(target));
+	}
+	return targets;
 }

Analyser/Static/Acorn/StaticAnalyser.hpp

@@ -0,0 +1,26 @@
+//
+//  AcornAnalyser.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 29/08/2016.
+//  Copyright 2016 Thomas Harte. All rights reserved.
+//
+
+#ifndef StaticAnalyser_Acorn_StaticAnalyser_hpp
+#define StaticAnalyser_Acorn_StaticAnalyser_hpp
+
+#include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace Acorn {
+
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
+
+}
+}
+}
+
+#endif /* AcornAnalyser_hpp */

Analyser/Static/Acorn/Tape.cpp

@@ -3,16 +3,17 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 29/08/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "Tape.hpp"
 
 #include <deque>
-#include "../../NumberTheory/CRC.hpp"
-#include "../../Storage/Tape/Parsers/Acorn.hpp"
 
-using namespace StaticAnalyser::Acorn;
+#include "../../../NumberTheory/CRC.hpp"
+#include "../../../Storage/Tape/Parsers/Acorn.hpp"
+
+using namespace Analyser::Static::Acorn;
 
 static std::unique_ptr<File::Chunk> GetNextChunk(const std::shared_ptr<Storage::Tape::Tape> &tape, Storage::Tape::Acorn::Parser &parser) {
 	std::unique_ptr<File::Chunk> new_chunk(new File::Chunk);
@@ -118,7 +119,7 @@ static std::unique_ptr<File> GetNextFile(std::deque<File::Chunk> &chunks) {
 	return file;
 }
 
-std::list<File> StaticAnalyser::Acorn::GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
+std::vector<File> Analyser::Static::Acorn::GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
 	Storage::Tape::Acorn::Parser parser;
 
 	// populate chunk list
@@ -131,7 +132,7 @@ std::list<File> StaticAnalyser::Acorn::GetFiles(const std::shared_ptr<Storage::T
 	}
 
 	// decompose into file list
-	std::list<File> file_list;
+	std::vector<File> file_list;
 
 	while(chunk_list.size()) {
 		std::unique_ptr<File> next_file = GetNextFile(chunk_list);

Analyser/Static/Acorn/Tape.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 29/08/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Acorn_Tape_hpp
@@ -12,13 +12,15 @@
 #include <memory>
 
 #include "File.hpp"
-#include "../../Storage/Tape/Tape.hpp"
+#include "../../../Storage/Tape/Tape.hpp"
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Acorn {
 
-std::list<File> GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape);
+std::vector<File> GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape);
 
+}
 }
 }
 

Analyser/Static/Acorn/Target.hpp

@@ -0,0 +1,30 @@
+//
+//  Target.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/03/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_Acorn_Target_h
+#define Analyser_Static_Acorn_Target_h
+
+#include "../StaticAnalyser.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace Acorn {
+
+struct Target: public ::Analyser::Static::Target {
+	bool has_adfs = false;
+	bool has_dfs = false;
+	bool should_shift_restart = false;
+	std::string loading_command;
+};
+
+}
+}
+}
+
+#endif /* Analyser_Static_Acorn_Target_h */

Analyser/Static/AmstradCPC/StaticAnalyser.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 30/07/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "StaticAnalyser.hpp"
@@ -11,8 +11,10 @@
 #include <algorithm>
 #include <cstring>
 
-#include "../../Storage/Disk/Parsers/CPM.hpp"
-#include "../../Storage/Disk/Encodings/MFM/Parser.hpp"
+#include "Target.hpp"
+
+#include "../../../Storage/Disk/Parsers/CPM.hpp"
+#include "../../../Storage/Disk/Encodings/MFM/Parser.hpp"
 
 static bool strcmp_insensitive(const char *a, const char *b) {
 	if(std::strlen(a) != std::strlen(b)) return false;
@@ -33,8 +35,8 @@ static bool is_implied_extension(const std::string &extension) {
 
 static void right_trim(std::string &string) {
 	string.erase(std::find_if(string.rbegin(), string.rend(), [](int ch) {
-        return !std::isspace(ch);
-    }).base(), string.end());
+		return !std::isspace(ch);
+	}).base(), string.end());
 }
 
 static std::string RunCommandFor(const Storage::Disk::CPM::File &file) {
@@ -58,18 +60,18 @@ static std::string RunCommandFor(const Storage::Disk::CPM::File &file) {
 
 static void InspectCatalogue(
 	const Storage::Disk::CPM::Catalogue &catalogue,
-	StaticAnalyser::Target &target) {
+	const std::unique_ptr<Analyser::Static::AmstradCPC::Target> &target) {
 
 	std::vector<const Storage::Disk::CPM::File *> candidate_files;
 	candidate_files.reserve(catalogue.files.size());
-	for(auto &file : catalogue.files) {
+	for(const auto &file : catalogue.files) {
 		candidate_files.push_back(&file);
 	}
 
 	// Remove all files with untypable characters.
 	candidate_files.erase(
 		std::remove_if(candidate_files.begin(), candidate_files.end(), [](const Storage::Disk::CPM::File *file) {
-			for(auto c : file->name + file->type) {
+			for(const auto c : file->name + file->type) {
 				if(c < 32) return true;
 			}
 			return false;
@@ -78,7 +80,7 @@ static void InspectCatalogue(
 
 	// If that leaves a mix of 'system' (i.e. hidden) and non-system files, remove the system files.
 	bool are_all_system = true;
-	for(auto file : candidate_files) {
+	for(const auto &file : candidate_files) {
 		if(!file->system) {
 			are_all_system = false;
 			break;
@@ -95,7 +97,7 @@ static void InspectCatalogue(
 
 	// If there's just one file, run that.
 	if(candidate_files.size() == 1) {
-		target.loading_command = RunCommandFor(*candidate_files[0]);
+		target->loading_command = RunCommandFor(*candidate_files[0]);
 		return;
 	}
 
@@ -126,7 +128,7 @@ static void InspectCatalogue(
 	}
 	if(basic_files == 1 || implicit_suffixed_files == 1) {
 		std::size_t selected_file = (basic_files == 1) ? last_basic_file : last_implicit_suffixed_file;
-		target.loading_command = RunCommandFor(*candidate_files[selected_file]);
+		target->loading_command = RunCommandFor(*candidate_files[selected_file]);
 		return;
 	}
 
@@ -135,28 +137,28 @@ static void InspectCatalogue(
 	std::map<std::string, int> name_counts;
 	std::map<std::string, std::size_t> indices_by_name;
 	std::size_t index = 0;
-	for(auto file : candidate_files) {
+	for(const auto &file : candidate_files) {
 		name_counts[file->name]++;
 		indices_by_name[file->name] = index;
 		index++;
 	}
 	if(name_counts.size() == 2) {
-		for(auto &pair : name_counts) {
+		for(const auto &pair : name_counts) {
 			if(pair.second == 1) {
-				target.loading_command = RunCommandFor(*candidate_files[indices_by_name[pair.first]]);
+				target->loading_command = RunCommandFor(*candidate_files[indices_by_name[pair.first]]);
 				return;
 			}
 		}
 	}
 
 	// Desperation.
-	target.loading_command = "cat\n";
+	target->loading_command = "cat\n";
 }
 
-static bool CheckBootSector(const std::shared_ptr<Storage::Disk::Disk> &disk, StaticAnalyser::Target &target) {
+static bool CheckBootSector(const std::shared_ptr<Storage::Disk::Disk> &disk, const std::unique_ptr<Analyser::Static::AmstradCPC::Target> &target) {
 	Storage::Encodings::MFM::Parser parser(true, disk);
 	Storage::Encodings::MFM::Sector *boot_sector = parser.get_sector(0, 0, 0x41);
-	if(boot_sector != nullptr && !boot_sector->samples.empty()) {
+	if(boot_sector != nullptr && !boot_sector->samples.empty() && boot_sector->samples[0].size() == 512) {
 		// Check that the first 64 bytes of the sector aren't identical; if they are then probably
 		// this disk was formatted and the filler byte never replaced.
 		bool matched = true;
@@ -169,7 +171,7 @@ static bool CheckBootSector(const std::shared_ptr<Storage::Disk::Disk> &disk, St
 
 		// This is a system disk, then launch it as though it were CP/M.
 		if(!matched) {
-			target.loading_command = "|cpm\n";
+			target->loading_command = "|cpm\n";
 			return true;
 		}
 	}
@@ -177,24 +179,25 @@ static bool CheckBootSector(const std::shared_ptr<Storage::Disk::Disk> &disk, St
 	return false;
 }
 
-void StaticAnalyser::AmstradCPC::AddTargets(const Media &media, std::list<Target> &destination) {
-	Target target;
-	target.machine = Target::AmstradCPC;
-	target.probability = 1.0;
-	target.media.disks = media.disks;
-	target.media.tapes = media.tapes;
-	target.media.cartridges = media.cartridges;
+Analyser::Static::TargetList Analyser::Static::AmstradCPC::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	TargetList destination;
+	std::unique_ptr<Target> target(new Target);
+	target->machine = Machine::AmstradCPC;
+	target->confidence = 0.5;
 
-	target.amstradcpc.model = AmstradCPCModel::CPC6128;
+	target->model = Target::Model::CPC6128;
+
+	if(!media.tapes.empty()) {
+		// TODO: which of these are actually potentially CPC tapes?
+		target->media.tapes = media.tapes;
 
-	if(!target.media.tapes.empty()) {
 		// Ugliness flows here: assume the CPC isn't smart enough to pause between pressing
 		// enter and responding to the follow-on prompt to press a key, so just type for
 		// a while. Yuck!
-		target.loading_command = "|tape\nrun\"\n1234567890";
+		target->loading_command = "|tape\nrun\"\n1234567890";
 	}
 
-	if(!target.media.disks.empty()) {
+	if(!media.disks.empty()) {
 		Storage::Disk::CPM::ParameterBlock data_format;
 		data_format.sectors_per_track = 9;
 		data_format.tracks = 40;
@@ -203,26 +206,42 @@ void StaticAnalyser::AmstradCPC::AddTargets(const Media &media, std::list<Target
 		data_format.catalogue_allocation_bitmap = 0xc000;
 		data_format.reserved_tracks = 0;
 
-		std::unique_ptr<Storage::Disk::CPM::Catalogue> data_catalogue = Storage::Disk::CPM::GetCatalogue(target.media.disks.front(), data_format);
-		if(data_catalogue) {
-			InspectCatalogue(*data_catalogue, target);
-		} else {
-			if(!CheckBootSector(target.media.disks.front(), target)) {
-				Storage::Disk::CPM::ParameterBlock system_format;
-				system_format.sectors_per_track = 9;
-				system_format.tracks = 40;
-				system_format.block_size = 1024;
-				system_format.first_sector = 0x41;
-				system_format.catalogue_allocation_bitmap = 0xc000;
-				system_format.reserved_tracks = 2;
+		Storage::Disk::CPM::ParameterBlock system_format;
+		system_format.sectors_per_track = 9;
+		system_format.tracks = 40;
+		system_format.block_size = 1024;
+		system_format.first_sector = 0x41;
+		system_format.catalogue_allocation_bitmap = 0xc000;
+		system_format.reserved_tracks = 2;
 
-				std::unique_ptr<Storage::Disk::CPM::Catalogue> system_catalogue = Storage::Disk::CPM::GetCatalogue(target.media.disks.front(), system_format);
-				if(system_catalogue) {
-					InspectCatalogue(*system_catalogue, target);
-				}
+		for(auto &disk: media.disks) {
+			// Check for an ordinary catalogue.
+			std::unique_ptr<Storage::Disk::CPM::Catalogue> data_catalogue = Storage::Disk::CPM::GetCatalogue(disk, data_format);
+			if(data_catalogue) {
+				InspectCatalogue(*data_catalogue, target);
+				target->media.disks.push_back(disk);
+				continue;
+			}
+
+			// Failing that check for a boot sector.
+			if(CheckBootSector(disk, target)) {
+				target->media.disks.push_back(disk);
+				continue;
+			}
+
+			// Failing that check for a system catalogue.
+			std::unique_ptr<Storage::Disk::CPM::Catalogue> system_catalogue = Storage::Disk::CPM::GetCatalogue(disk, system_format);
+			if(system_catalogue) {
+				InspectCatalogue(*system_catalogue, target);
+				target->media.disks.push_back(disk);
+				continue;
 			}
 		}
 	}
 
-	destination.push_back(target);
+	// If any media survived, add the target.
+	if(!target->media.empty())
+		destination.push_back(std::move(target));
+
+	return destination;
 }

Analyser/Static/AmstradCPC/StaticAnalyser.hpp

@@ -0,0 +1,26 @@
+//
+//  StaticAnalyser.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 30/07/2017.
+//  Copyright 2017 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_AmstradCPC_StaticAnalyser_hpp
+#define Analyser_Static_AmstradCPC_StaticAnalyser_hpp
+
+#include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace AmstradCPC {
+
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
+
+}
+}
+}
+
+#endif /* Analyser_Static_AmstradCPC_StaticAnalyser_hpp */

Analyser/Static/AmstradCPC/Target.hpp

@@ -0,0 +1,35 @@
+//
+//  Target.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/03/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_AmstradCPC_Target_h
+#define Analyser_Static_AmstradCPC_Target_h
+
+#include "../StaticAnalyser.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace AmstradCPC {
+
+struct Target: public ::Analyser::Static::Target {
+	enum class Model {
+		CPC464,
+		CPC664,
+		CPC6128
+	};
+
+	Model model = Model::CPC464;
+	std::string loading_command;
+};
+
+}
+}
+}
+
+
+#endif /* Analyser_Static_AmstradCPC_Target_h */

Analyser/Static/AppleII/StaticAnalyser.cpp

@@ -0,0 +1,23 @@
+//
+//  StaticAnalyser.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 14/04/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "StaticAnalyser.hpp"
+#include "Target.hpp"
+
+Analyser::Static::TargetList Analyser::Static::AppleII::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	auto target = std::unique_ptr<Target>(new Target);
+	target->machine = Machine::AppleII;
+	target->media = media;
+
+	if(!target->media.disks.empty())
+		target->disk_controller = Target::DiskController::SixteenSector;
+
+	TargetList targets;
+	targets.push_back(std::move(target));
+	return targets;
+}

Analyser/Static/AppleII/StaticAnalyser.hpp

@@ -0,0 +1,26 @@
+//
+//  StaticAnalyser.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 14/04/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_AppleII_StaticAnalyser_hpp
+#define Analyser_Static_AppleII_StaticAnalyser_hpp
+
+#include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace AppleII {
+
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
+
+}
+}
+}
+
+#endif /* Analyser_Static_AppleII_StaticAnalyser_hpp */

Analyser/Static/AppleII/Target.hpp

@@ -0,0 +1,37 @@
+//
+//  Target.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 21/04/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Target_h
+#define Target_h
+
+#include "../StaticAnalyser.hpp"
+
+namespace Analyser {
+namespace Static {
+namespace AppleII {
+
+struct Target: public ::Analyser::Static::Target {
+	enum class Model {
+		II,
+		IIplus
+	};
+	enum class DiskController {
+		None,
+		SixteenSector,
+		ThirteenSector
+	};
+
+	Model model = Model::IIplus;
+	DiskController disk_controller = DiskController::None;
+};
+
+}
+}
+}
+
+#endif /* Target_h */

Analyser/Static/Atari/StaticAnalyser.cpp

@@ -3,16 +3,18 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 15/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "StaticAnalyser.hpp"
 
+#include "Target.hpp"
+
 #include "../Disassembler/6502.hpp"
 
-using namespace StaticAnalyser::Atari;
+using namespace Analyser::Static::Atari;
 
-static void DeterminePagingFor2kCartridge(StaticAnalyser::Target &target, const Storage::Cartridge::Cartridge::Segment &segment) {
+static void DeterminePagingFor2kCartridge(Analyser::Static::Atari::Target &target, const Storage::Cartridge::Cartridge::Segment &segment) {
 	// if this is a 2kb cartridge then it's definitely either unpaged or a CommaVid
 	uint16_t entry_address, break_address;
 
@@ -26,17 +28,17 @@ static void DeterminePagingFor2kCartridge(StaticAnalyser::Target &target, const
 		address &= 0x1fff;
 		return static_cast<std::size_t>(address - 0x1800);
 	};
-	StaticAnalyser::MOS6502::Disassembly high_location_disassembly =
-		StaticAnalyser::MOS6502::Disassemble(segment.data, high_location_mapper, {entry_address, break_address});
+	Analyser::Static::MOS6502::Disassembly high_location_disassembly =
+		Analyser::Static::MOS6502::Disassemble(segment.data, high_location_mapper, {entry_address, break_address});
 
 	// assume that any kind of store that looks likely to be intended for large amounts of memory implies
 	// large amounts of memory
 	bool has_wide_area_store = false;
-	for(std::map<uint16_t, StaticAnalyser::MOS6502::Instruction>::value_type &entry : high_location_disassembly.instructions_by_address) {
-		if(entry.second.operation == StaticAnalyser::MOS6502::Instruction::STA) {
-			has_wide_area_store |= entry.second.addressing_mode == StaticAnalyser::MOS6502::Instruction::Indirect;
-			has_wide_area_store |= entry.second.addressing_mode == StaticAnalyser::MOS6502::Instruction::IndexedIndirectX;
-			has_wide_area_store |= entry.second.addressing_mode == StaticAnalyser::MOS6502::Instruction::IndirectIndexedY;
+	for(std::map<uint16_t, Analyser::Static::MOS6502::Instruction>::value_type &entry : high_location_disassembly.instructions_by_address) {
+		if(entry.second.operation == Analyser::Static::MOS6502::Instruction::STA) {
+			has_wide_area_store |= entry.second.addressing_mode == Analyser::Static::MOS6502::Instruction::Indirect;
+			has_wide_area_store |= entry.second.addressing_mode == Analyser::Static::MOS6502::Instruction::IndexedIndirectX;
+			has_wide_area_store |= entry.second.addressing_mode == Analyser::Static::MOS6502::Instruction::IndirectIndexedY;
 
 			if(has_wide_area_store) break;
 		}
@@ -46,10 +48,10 @@ static void DeterminePagingFor2kCartridge(StaticAnalyser::Target &target, const
 	// caveat: false positives aren't likely to be problematic; a false positive is a 2KB ROM that always addresses
 	// itself so as to land in ROM even if mapped as a CommaVid and this code is on the fence as to whether it
 	// attempts to modify itself but it probably doesn't
-	if(has_wide_area_store) target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::CommaVid;
+	if(has_wide_area_store) target.paging_model = Analyser::Static::Atari::Target::PagingModel::CommaVid;
 }
 
-static void DeterminePagingFor8kCartridge(StaticAnalyser::Target &target, const Storage::Cartridge::Cartridge::Segment &segment, const StaticAnalyser::MOS6502::Disassembly &disassembly) {
+static void DeterminePagingFor8kCartridge(Analyser::Static::Atari::Target &target, const Storage::Cartridge::Cartridge::Segment &segment, const Analyser::Static::MOS6502::Disassembly &disassembly) {
 	// Activision stack titles have their vectors at the top of the low 4k, not the top, and
 	// always list 0xf000 as both vectors; they do not repeat them, and, inexplicably, they all
 	// issue an SEI as their first instruction (maybe some sort of relic of the development environment?)
@@ -58,12 +60,12 @@ static void DeterminePagingFor8kCartridge(StaticAnalyser::Target &target, const
 		(segment.data[8191] != 0xf0 || segment.data[8189] != 0xf0 || segment.data[8190] != 0x00 || segment.data[8188] != 0x00) &&
 		segment.data[0] == 0x78
 	) {
-		target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::ActivisionStack;
+		target.paging_model = Analyser::Static::Atari::Target::PagingModel::ActivisionStack;
 		return;
 	}
 
 	// make an assumption that this is the Atari paging model
-	target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::Atari8k;
+	target.paging_model = Analyser::Static::Atari::Target::PagingModel::Atari8k;
 
 	std::set<uint16_t> internal_accesses;
 	internal_accesses.insert(disassembly.internal_stores.begin(), disassembly.internal_stores.end());
@@ -83,13 +85,13 @@ static void DeterminePagingFor8kCartridge(StaticAnalyser::Target &target, const
 		tigervision_access_count += masked_address == 0x3f;
 	}
 
-	if(parker_access_count > atari_access_count) target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::ParkerBros;
-	else if(tigervision_access_count > atari_access_count) target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::Tigervision;
+	if(parker_access_count > atari_access_count) target.paging_model = Analyser::Static::Atari::Target::PagingModel::ParkerBros;
+	else if(tigervision_access_count > atari_access_count) target.paging_model = Analyser::Static::Atari::Target::PagingModel::Tigervision;
 }
 
-static void DeterminePagingFor16kCartridge(StaticAnalyser::Target &target, const Storage::Cartridge::Cartridge::Segment &segment, const StaticAnalyser::MOS6502::Disassembly &disassembly) {
+static void DeterminePagingFor16kCartridge(Analyser::Static::Atari::Target &target, const Storage::Cartridge::Cartridge::Segment &segment, const Analyser::Static::MOS6502::Disassembly &disassembly) {
 	// make an assumption that this is the Atari paging model
-	target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::Atari16k;
+	target.paging_model = Analyser::Static::Atari::Target::PagingModel::Atari16k;
 
 	std::set<uint16_t> internal_accesses;
 	internal_accesses.insert(disassembly.internal_stores.begin(), disassembly.internal_stores.end());
@@ -104,17 +106,17 @@ static void DeterminePagingFor16kCartridge(StaticAnalyser::Target &target, const
 		mnetwork_access_count += masked_address >= 0x1fe0 && masked_address < 0x1ffb;
 	}
 
-	if(mnetwork_access_count > atari_access_count) target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::MNetwork;
+	if(mnetwork_access_count > atari_access_count) target.paging_model = Analyser::Static::Atari::Target::PagingModel::MNetwork;
 }
 
-static void DeterminePagingFor64kCartridge(StaticAnalyser::Target &target, const Storage::Cartridge::Cartridge::Segment &segment, const StaticAnalyser::MOS6502::Disassembly &disassembly) {
+static void DeterminePagingFor64kCartridge(Analyser::Static::Atari::Target &target, const Storage::Cartridge::Cartridge::Segment &segment, const Analyser::Static::MOS6502::Disassembly &disassembly) {
 	// make an assumption that this is a Tigervision if there is a write to 3F
-	target.atari.paging_model =
+	target.paging_model =
 		(disassembly.external_stores.find(0x3f) != disassembly.external_stores.end()) ?
-			StaticAnalyser::Atari2600PagingModel::Tigervision : StaticAnalyser::Atari2600PagingModel::MegaBoy;
+			Analyser::Static::Atari::Target::PagingModel::Tigervision : Analyser::Static::Atari::Target::PagingModel::MegaBoy;
 }
 
-static void DeterminePagingForCartridge(StaticAnalyser::Target &target, const Storage::Cartridge::Cartridge::Segment &segment) {
+static void DeterminePagingForCartridge(Analyser::Static::Atari::Target &target, const Storage::Cartridge::Cartridge::Segment &segment) {
 	if(segment.data.size() == 2048) {
 		DeterminePagingFor2kCartridge(target, segment);
 		return;
@@ -131,23 +133,23 @@ static void DeterminePagingForCartridge(StaticAnalyser::Target &target, const St
 	};
 
 	std::vector<uint8_t> final_4k(segment.data.end() - 4096, segment.data.end());
-	StaticAnalyser::MOS6502::Disassembly disassembly = StaticAnalyser::MOS6502::Disassemble(final_4k, address_mapper, {entry_address, break_address});
+	Analyser::Static::MOS6502::Disassembly disassembly = Analyser::Static::MOS6502::Disassemble(final_4k, address_mapper, {entry_address, break_address});
 
 	switch(segment.data.size()) {
 		case 8192:
 			DeterminePagingFor8kCartridge(target, segment, disassembly);
 		break;
 		case 10495:
-			target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::Pitfall2;
+			target.paging_model = Analyser::Static::Atari::Target::PagingModel::Pitfall2;
 		break;
 		case 12288:
-			target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::CBSRamPlus;
+			target.paging_model = Analyser::Static::Atari::Target::PagingModel::CBSRamPlus;
 		break;
 		case 16384:
 			DeterminePagingFor16kCartridge(target, segment, disassembly);
 		break;
 		case 32768:
-			target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::Atari32k;
+			target.paging_model = Analyser::Static::Atari::Target::PagingModel::Atari32k;
 		break;
 		case 65536:
 			DeterminePagingFor64kCartridge(target, segment, disassembly);
@@ -159,8 +161,8 @@ static void DeterminePagingForCartridge(StaticAnalyser::Target &target, const St
 	// check for a Super Chip. Atari ROM images [almost] always have the same value stored over RAM
 	// regions; when they don't they at least seem to have the first 128 bytes be the same as the
 	// next 128 bytes. So check for that.
-	if(	target.atari.paging_model != StaticAnalyser::Atari2600PagingModel::CBSRamPlus &&
-		target.atari.paging_model != StaticAnalyser::Atari2600PagingModel::MNetwork) {
+	if(	target.paging_model != Analyser::Static::Atari::Target::PagingModel::CBSRamPlus &&
+		target.paging_model != Analyser::Static::Atari::Target::PagingModel::MNetwork) {
 		bool has_superchip = true;
 		for(std::size_t address = 0; address < 128; address++) {
 			if(segment.data[address] != segment.data[address+128]) {
@@ -168,24 +170,24 @@ static void DeterminePagingForCartridge(StaticAnalyser::Target &target, const St
 				break;
 			}
 		}
-		target.atari.uses_superchip = has_superchip;
+		target.uses_superchip = has_superchip;
 	}
 
 	// check for a Tigervision or Tigervision-esque scheme
-	if(target.atari.paging_model == StaticAnalyser::Atari2600PagingModel::None && segment.data.size() > 4096) {
+	if(target.paging_model == Analyser::Static::Atari::Target::PagingModel::None && segment.data.size() > 4096) {
 		bool looks_like_tigervision = disassembly.external_stores.find(0x3f) != disassembly.external_stores.end();
-		if(looks_like_tigervision) target.atari.paging_model = StaticAnalyser::Atari2600PagingModel::Tigervision;
+		if(looks_like_tigervision) target.paging_model = Analyser::Static::Atari::Target::PagingModel::Tigervision;
 	}
 }
 
-void StaticAnalyser::Atari::AddTargets(const Media &media, std::list<Target> &destination) {
-	// TODO: sanity checking; is this image really for an Atari 2600.
-	Target target;
-	target.machine = Target::Atari2600;
-	target.probability = 1.0;
-	target.media.cartridges = media.cartridges;
-	target.atari.paging_model = Atari2600PagingModel::None;
-	target.atari.uses_superchip = false;
+Analyser::Static::TargetList Analyser::Static::Atari::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	// TODO: sanity checking; is this image really for an Atari 2600?
+	std::unique_ptr<Analyser::Static::Atari::Target> target(new Analyser::Static::Atari::Target);
+	target->machine = Machine::Atari2600;
+	target->confidence = 0.5;
+	target->media.cartridges = media.cartridges;
+	target->paging_model = Analyser::Static::Atari::Target::PagingModel::None;
+	target->uses_superchip = false;
 
 	// try to figure out the paging scheme
 	if(!media.cartridges.empty()) {
@@ -193,9 +195,10 @@ void StaticAnalyser::Atari::AddTargets(const Media &media, std::list<Target> &de
 
 		if(segments.size() == 1) {
 			const Storage::Cartridge::Cartridge::Segment &segment = segments.front();
-			DeterminePagingForCartridge(target, segment);
+			DeterminePagingForCartridge(*target, segment);
 		}
 	}
-
-	destination.push_back(target);
+	TargetList destinations;
+	destinations.push_back(std::move(target));
+	return destinations;
 }

Analyser/Static/Atari/StaticAnalyser.hpp

@@ -3,19 +3,23 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 15/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Atari_StaticAnalyser_hpp
 #define StaticAnalyser_Atari_StaticAnalyser_hpp
 
 #include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Atari {
 
-void AddTargets(const Media &media, std::list<Target> &destination);
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
 
+}
 }
 }
 

Analyser/Static/Atari/Target.hpp

@@ -0,0 +1,43 @@
+//
+//  Target.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/03/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_Atari_Target_h
+#define Analyser_Static_Atari_Target_h
+
+#include "../StaticAnalyser.hpp"
+
+namespace Analyser {
+namespace Static {
+namespace Atari {
+
+struct Target: public ::Analyser::Static::Target {
+	enum class PagingModel {
+		None,
+		CommaVid,
+		Atari8k,
+		Atari16k,
+		Atari32k,
+		ActivisionStack,
+		ParkerBros,
+		Tigervision,
+		CBSRamPlus,
+		MNetwork,
+		MegaBoy,
+		Pitfall2
+	};
+
+	// TODO: shouldn't these be properties of the cartridge?
+	PagingModel paging_model = PagingModel::None;
+	bool uses_superchip = false;
+};
+
+}
+}
+}
+
+#endif /* Analyser_Static_Atari_Target_h */

Analyser/Static/Coleco/StaticAnalyser.cpp

@@ -0,0 +1,64 @@
+//
+//  StaticAnalyser.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 23/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "StaticAnalyser.hpp"
+
+static std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>>
+		ColecoCartridgesFrom(const std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>> &cartridges) {
+	std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>> coleco_cartridges;
+
+	for(const auto &cartridge : cartridges) {
+		const auto &segments = cartridge->get_segments();
+
+		// only one mapped item is allowed
+		if(segments.size() != 1) continue;
+
+		// which must be 8, 12, 16, 24 or 32 kb in size
+		const Storage::Cartridge::Cartridge::Segment &segment = segments.front();
+		const std::size_t data_size = segment.data.size();
+		const std::size_t overflow = data_size&8191;
+		if(overflow > 8 && overflow != 512 && (data_size != 12*1024)) continue;
+		if(data_size < 8192) continue;
+
+		// the two bytes that will be first must be 0xaa and 0x55, either way around
+		auto *start = &segment.data[0];
+		if((data_size & static_cast<std::size_t>(~8191)) > 32768) {
+			start = &segment.data[segment.data.size() - 16384];
+		}
+		if(start[0] != 0xaa && start[0] != 0x55 && start[1] != 0xaa && start[1] != 0x55) continue;
+		if(start[0] == start[1]) continue;
+
+		// probability of a random binary blob that isn't a Coleco ROM proceeding to here is 1 - 1/32768.
+		if(!overflow) {
+			coleco_cartridges.push_back(cartridge);
+		} else {
+			// Size down to a multiple of 8kb and apply the start address.
+			std::vector<Storage::Cartridge::Cartridge::Segment> output_segments;
+
+			std::vector<uint8_t> truncated_data;
+			std::vector<uint8_t>::difference_type truncated_size = static_cast<std::vector<uint8_t>::difference_type>(segment.data.size()) & ~8191;
+			truncated_data.insert(truncated_data.begin(), segment.data.begin(), segment.data.begin() + truncated_size);
+			output_segments.emplace_back(0x8000, truncated_data);
+
+			coleco_cartridges.emplace_back(new Storage::Cartridge::Cartridge(output_segments));
+		}
+	}
+
+	return coleco_cartridges;
+}
+
+Analyser::Static::TargetList Analyser::Static::Coleco::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	TargetList targets;
+	std::unique_ptr<Target> target(new Target);
+	target->machine = Machine::ColecoVision;
+	target->confidence = 1.0f - 1.0f / 32768.0f;
+	target->media.cartridges = ColecoCartridgesFrom(media.cartridges);
+	if(!target->media.empty())
+		targets.push_back(std::move(target));
+	return targets;
+}

Analyser/Static/Coleco/StaticAnalyser.hpp

@@ -0,0 +1,27 @@
+//
+//  StaticAnalyser.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 23/02/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef StaticAnalyser_Coleco_StaticAnalyser_hpp
+#define StaticAnalyser_Coleco_StaticAnalyser_hpp
+
+#include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace Coleco {
+
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
+
+}
+}
+}
+
+
+#endif /* StaticAnalyser_hpp */

Analyser/Static/Commodore/Disk.cpp

@@ -3,19 +3,19 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 13/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "Disk.hpp"
-#include "../../Storage/Disk/Controller/DiskController.hpp"
-#include "../../Storage/Disk/Encodings/CommodoreGCR.hpp"
-#include "../../Storage/Data/Commodore.hpp"
+#include "../../../Storage/Disk/Controller/DiskController.hpp"
+#include "../../../Storage/Disk/Encodings/CommodoreGCR.hpp"
+#include "../../../Storage/Data/Commodore.hpp"
 
 #include <limits>
 #include <vector>
 #include <array>
 
-using namespace StaticAnalyser::Commodore;
+using namespace Analyser::Static::Commodore;
 
 class CommodoreGCRParser: public Storage::Disk::Controller {
 	public:
@@ -45,9 +45,11 @@ class CommodoreGCRParser: public Storage::Disk::Controller {
 
 			if(difference) {
 				int direction = difference < 0 ? -1 : 1;
-				difference *= 2 * direction;
+				difference *= direction;
 
-				for(int c = 0; c < difference; c++) get_drive().step(direction);
+				for(int c = 0; c < difference; c++) {
+					get_drive().step(Storage::Disk::HeadPosition(direction));
+				}
 
 				unsigned int zone = 3;
 				if(track >= 18) zone = 2;
@@ -71,19 +73,19 @@ class CommodoreGCRParser: public Storage::Disk::Controller {
 			bit_count_++;
 		}
 
-		unsigned int proceed_to_next_block() {
+		unsigned int proceed_to_next_block(int max_index_count) {
 			// find GCR lead-in
 			proceed_to_shift_value(0x3ff);
 			if(shift_register_ != 0x3ff) return 0xff;
 
 			// find end of lead-in
-			while(shift_register_ == 0x3ff && index_count_ < 2) {
+			while(shift_register_ == 0x3ff && index_count_ < max_index_count) {
 				run_for(Cycles(1));
 			}
 
 			// continue for a further nine bits
 			bit_count_ = 0;
-			while(bit_count_ < 9 && index_count_ < 2) {
+			while(bit_count_ < 9 && index_count_ < max_index_count) {
 				run_for(Cycles(1));
 			}
 
@@ -97,8 +99,8 @@ class CommodoreGCRParser: public Storage::Disk::Controller {
 		}
 
 		void proceed_to_shift_value(unsigned int shift_value) {
-			index_count_ = 0;
-			while(shift_register_ != shift_value && index_count_ < 2) {
+			const int max_index_count = index_count_ + 2;
+			while(shift_register_ != shift_value && index_count_ < max_index_count) {
 				run_for(Cycles(1));
 			}
 		}
@@ -124,13 +126,13 @@ class CommodoreGCRParser: public Storage::Disk::Controller {
 
 		std::shared_ptr<Sector> get_next_sector() {
 			std::shared_ptr<Sector> sector(new Sector);
-			index_count_ = 0;
+			const int max_index_count = index_count_ + 2;
 
-			while(index_count_ < 2) {
+			while(index_count_ < max_index_count) {
 				// look for a sector header
 				while(1) {
-					if(proceed_to_next_block() == 0x08) break;
-					if(index_count_ >= 2) return nullptr;
+					if(proceed_to_next_block(max_index_count) == 0x08) break;
+					if(index_count_ >= max_index_count) return nullptr;
 				}
 
 				// get sector details, skip if this looks malformed
@@ -144,8 +146,8 @@ class CommodoreGCRParser: public Storage::Disk::Controller {
 
 				// look for the following data
 				while(1) {
-					if(proceed_to_next_block() == 0x07) break;
-					if(index_count_ >= 2) return nullptr;
+					if(proceed_to_next_block(max_index_count) == 0x07) break;
+					if(index_count_ >= max_index_count) return nullptr;
 				}
 
 				checksum = 0;
@@ -165,8 +167,8 @@ class CommodoreGCRParser: public Storage::Disk::Controller {
 		}
 };
 
-std::list<File> StaticAnalyser::Commodore::GetFiles(const std::shared_ptr<Storage::Disk::Disk> &disk) {
-	std::list<File> files;
+std::vector<File> Analyser::Static::Commodore::GetFiles(const std::shared_ptr<Storage::Disk::Disk> &disk) {
+	std::vector<File> files;
 	CommodoreGCRParser parser;
 	parser.drive->set_disk(disk);
 

Analyser/Static/Commodore/Disk.hpp

@@ -3,23 +3,25 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 13/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Commodore_Disk_hpp
 #define StaticAnalyser_Commodore_Disk_hpp
 
-#include "../../Storage/Disk/Disk.hpp"
+#include "../../../Storage/Disk/Disk.hpp"
 #include "File.hpp"
-#include <list>
 
-namespace StaticAnalyser {
+#include <vector>
+
+namespace Analyser {
+namespace Static {
 namespace Commodore {
 
-std::list<File> GetFiles(const std::shared_ptr<Storage::Disk::Disk> &disk);
+std::vector<File> GetFiles(const std::shared_ptr<Storage::Disk::Disk> &disk);
 
 }
 }
-
+}
 
 #endif /* Disk_hpp */

Analyser/Static/Commodore/File.cpp

@@ -3,12 +3,12 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 10/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "File.hpp"
 
-bool StaticAnalyser::Commodore::File::is_basic() {
+bool Analyser::Static::Commodore::File::is_basic() {
 	// BASIC files are always relocatable (?)
 	if(type != File::RelocatableProgram) return false;
 
@@ -21,7 +21,7 @@ bool StaticAnalyser::Commodore::File::is_basic() {
 	//		[4 bytes: address of start of next line]
 	//		[4 bytes: this line number]
 	//		... null-terminated code ...
-	//	(with a next line address of 0000 indicating end of program)ß
+	//	(with a next line address of 0000 indicating end of program)
 	while(1) {
 		if(static_cast<size_t>(line_address - starting_address) >= data.size() + 2) break;
 

Analyser/Static/Commodore/File.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 10/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef File_hpp
@@ -12,7 +12,8 @@
 #include <string>
 #include <vector>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Commodore {
 
 struct File {
@@ -34,6 +35,7 @@ struct File {
 	bool is_basic();
 };
 
+}
 }
 }
 

Analyser/Static/Commodore/StaticAnalyser.cpp

@@ -0,0 +1,161 @@
+//
+//  CommodoreAnalyser.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 06/09/2016.
+//  Copyright 2016 Thomas Harte. All rights reserved.
+//
+
+#include "StaticAnalyser.hpp"
+
+#include "Disk.hpp"
+#include "File.hpp"
+#include "Tape.hpp"
+#include "Target.hpp"
+#include "../../../Storage/Cartridge/Encodings/CommodoreROM.hpp"
+
+#include <algorithm>
+#include <sstream>
+
+using namespace Analyser::Static::Commodore;
+
+static std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>>
+		Vic20CartridgesFrom(const std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>> &cartridges) {
+	std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>> vic20_cartridges;
+
+	for(const auto &cartridge : cartridges) {
+		const auto &segments = cartridge->get_segments();
+
+		// only one mapped item is allowed
+		if(segments.size() != 1) continue;
+
+		// which must be 16 kb in size
+		Storage::Cartridge::Cartridge::Segment segment = segments.front();
+		if(segment.start_address != 0xa000) continue;
+		if(!Storage::Cartridge::Encodings::CommodoreROM::isROM(segment.data)) continue;
+
+		vic20_cartridges.push_back(cartridge);
+	}
+
+	return vic20_cartridges;
+}
+
+Analyser::Static::TargetList Analyser::Static::Commodore::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	TargetList destination;
+
+	std::unique_ptr<Target> target(new Target);
+	target->machine = Machine::Vic20;	// TODO: machine estimation
+	target->confidence = 0.5; // TODO: a proper estimation
+
+	int device = 0;
+	std::vector<File> files;
+	bool is_disk = false;
+
+	// strip out inappropriate cartridges
+	target->media.cartridges = Vic20CartridgesFrom(media.cartridges);
+
+	// check disks
+	for(auto &disk : media.disks) {
+		std::vector<File> disk_files = GetFiles(disk);
+		if(!disk_files.empty()) {
+			is_disk = true;
+			files.insert(files.end(), disk_files.begin(), disk_files.end());
+			target->media.disks.push_back(disk);
+			if(!device) device = 8;
+		}
+	}
+
+	// check tapes
+	for(auto &tape : media.tapes) {
+		std::vector<File> tape_files = GetFiles(tape);
+		tape->reset();
+		if(!tape_files.empty()) {
+			files.insert(files.end(), tape_files.begin(), tape_files.end());
+			target->media.tapes.push_back(tape);
+			if(!device) device = 1;
+		}
+	}
+
+	if(!files.empty()) {
+		target->memory_model = Target::MemoryModel::Unexpanded;
+		std::ostringstream string_stream;
+		string_stream << "LOAD\"" << (is_disk ? "*" : "") << "\"," << device << ",";
+  		if(files.front().is_basic()) {
+			string_stream << "0";
+		} else {
+			string_stream << "1";
+		}
+		string_stream << "\nRUN\n";
+		target->loading_command = string_stream.str();
+
+		// make a first guess based on loading address
+		switch(files.front().starting_address) {
+			default:
+				printf("Starting address %04x?\n", files.front().starting_address);
+			case 0x1001:
+				target->memory_model = Target::MemoryModel::Unexpanded;
+			break;
+			case 0x1201:
+				target->memory_model = Target::MemoryModel::ThirtyTwoKB;
+			break;
+			case 0x0401:
+				target->memory_model = Target::MemoryModel::EightKB;
+			break;
+		}
+
+		// General approach: increase memory size conservatively such that the largest file found will fit.
+//		for(File &file : files) {
+//			std::size_t file_size = file.data.size();
+//			bool is_basic = file.is_basic();
+
+			/*if(is_basic)
+			{
+				// BASIC files may be relocated, so the only limit is size.
+				//
+				// An unexpanded machine has 3583 bytes free for BASIC;
+				// a 3kb expanded machine has 6655 bytes free.
+				if(file_size > 6655)
+					target->vic20.memory_model = Vic20MemoryModel::ThirtyTwoKB;
+				else if(target->vic20.memory_model == Vic20MemoryModel::Unexpanded && file_size > 3583)
+					target->vic20.memory_model = Vic20MemoryModel::EightKB;
+			}
+			else
+			{*/
+//			if(!file.type == File::NonRelocatableProgram)
+//			{
+				// Non-BASIC files may be relocatable but, if so, by what logic?
+				// Given that this is unknown, take starting address as literal
+				// and check against memory windows.
+				//
+				// (ignoring colour memory...)
+				// An unexpanded Vic has memory between 0x0000 and 0x0400; and between 0x1000 and 0x2000.
+				// A 3kb expanded Vic fills in the gap and has memory between 0x0000 and 0x2000.
+				// A 32kb expanded Vic has memory in the entire low 32kb.
+//				uint16_t starting_address = file.starting_address;
+
+				// If anything above the 8kb mark is touched, mark as a 32kb machine; otherwise if the
+				// region 0x0400 to 0x1000 is touched and this is an unexpanded machine, mark as 3kb.
+//				if(starting_address + file_size > 0x2000)
+//					target->memory_model = Target::MemoryModel::ThirtyTwoKB;
+//				else if(target->memory_model == Target::MemoryModel::Unexpanded && !(starting_address >= 0x1000 || starting_address+file_size < 0x0400))
+//					target->memory_model = Target::MemoryModel::ThirtyTwoKB;
+//			}
+//		}
+	}
+
+	if(!target->media.empty()) {
+		// Inspect filename for a region hint.
+		std::string lowercase_name = file_name;
+		std::transform(lowercase_name.begin(), lowercase_name.end(), lowercase_name.begin(), ::tolower);
+		if(lowercase_name.find("ntsc") != std::string::npos) {
+			target->region = Analyser::Static::Commodore::Target::Region::American;
+		}
+
+		// Attach a 1540 if there are any disks here.
+		target->has_c1540 = !target->media.disks.empty();
+
+		destination.push_back(std::move(target));
+	}
+
+	return destination;
+}

Analyser/Static/Commodore/StaticAnalyser.hpp

@@ -3,19 +3,23 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 06/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Commodore_StaticAnalyser_hpp
 #define StaticAnalyser_Commodore_StaticAnalyser_hpp
 
 #include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Commodore {
 
-void AddTargets(const Media &media, std::list<Target> &destination);
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
 
+}
 }
 }
 

Analyser/Static/Commodore/Tape.cpp

@@ -3,18 +3,18 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 24/08/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "Tape.hpp"
 
-#include "../../Storage/Tape/Parsers/Commodore.hpp"
+#include "../../../Storage/Tape/Parsers/Commodore.hpp"
 
-using namespace StaticAnalyser::Commodore;
+using namespace Analyser::Static::Commodore;
 
-std::list<File> StaticAnalyser::Commodore::GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
+std::vector<File> Analyser::Static::Commodore::GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
 	Storage::Tape::Commodore::Parser parser;
-	std::list<File> file_list;
+	std::vector<File> file_list;
 
 	std::unique_ptr<Storage::Tape::Commodore::Header> header = parser.get_next_header(tape);
 

Analyser/Static/Commodore/Tape.hpp

@@ -3,21 +3,22 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 24/08/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Commodore_Tape_hpp
 #define StaticAnalyser_Commodore_Tape_hpp
 
-#include "../../Storage/Tape/Tape.hpp"
+#include "../../../Storage/Tape/Tape.hpp"
 #include "File.hpp"
-#include <list>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Commodore {
 
-std::list<File> GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape);
+std::vector<File> GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape);
 
+}
 }
 }
 

Analyser/Static/Commodore/Target.hpp

@@ -0,0 +1,44 @@
+//
+//  Target.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/03/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_Commodore_Target_h
+#define Analyser_Static_Commodore_Target_h
+
+#include "../StaticAnalyser.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace Commodore {
+
+struct Target: public ::Analyser::Static::Target {
+	enum class MemoryModel {
+		Unexpanded,
+		EightKB,
+		ThirtyTwoKB
+	};
+
+	enum class Region {
+		American,
+		Danish,
+		Japanese,
+		European,
+		Swedish
+	};
+
+	MemoryModel memory_model = MemoryModel::Unexpanded;
+	Region region = Region::European;
+	bool has_c1540 = false;
+	std::string loading_command;
+};
+
+}
+}
+}
+
+#endif /* Analyser_Static_Commodore_Target_h */

Analyser/Static/Disassembler/6502.cpp

@@ -3,17 +3,17 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 10/11/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "6502.hpp"
 
 #include "Kernel.hpp"
 
-using namespace StaticAnalyser::MOS6502;
+using namespace Analyser::Static::MOS6502;
 namespace  {
 
-using PartialDisassembly = StaticAnalyser::Disassembly::PartialDisassembly<Disassembly, uint16_t>;
+using PartialDisassembly = Analyser::Static::Disassembly::PartialDisassembly<Disassembly, uint16_t>;
 
 struct MOS6502Disassembler {
 
@@ -312,9 +312,9 @@ static void AddToDisassembly(PartialDisassembly &disassembly, const std::vector<
 
 }	// end of anonymous namespace
 
-Disassembly StaticAnalyser::MOS6502::Disassemble(
+Disassembly Analyser::Static::MOS6502::Disassemble(
 	const std::vector<uint8_t> &memory,
 	const std::function<std::size_t(uint16_t)> &address_mapper,
 	std::vector<uint16_t> entry_points) {
-	return StaticAnalyser::Disassembly::Disassemble<Disassembly, uint16_t, MOS6502Disassembler>(memory, address_mapper, entry_points);
+	return Analyser::Static::Disassembly::Disassemble<Disassembly, uint16_t, MOS6502Disassembler>(memory, address_mapper, entry_points);
 }

Analyser/Static/Disassembler/6502.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 10/11/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Disassembler_6502_hpp
@@ -16,11 +16,12 @@
 #include <set>
 #include <vector>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace MOS6502 {
 
 /*!
-	Describes a 6502 instruciton — its address, the operation it performs, its addressing mode
+	Describes a 6502 instruciton: its address, the operation it performs, its addressing mode
 	and its operand, if any.
 */
 struct Instruction {
@@ -95,5 +96,6 @@ Disassembly Disassemble(
 
 }
 }
+}
 
 #endif /* Disassembler6502_hpp */

Analyser/Static/Disassembler/AddressMapper.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 30/12/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "AddressMapper.hpp"

Analyser/Static/Disassembler/AddressMapper.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 30/12/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef AddressMapper_hpp
@@ -11,7 +11,8 @@
 
 #include <functional>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Disassembler {
 
 /*!
@@ -24,6 +25,7 @@ template <typename T> std::function<std::size_t(T)> OffsetMapper(T start_address
 	};
 }
 
+}
 }
 }
 

Analyser/Static/Disassembler/Kernel.hpp

@@ -3,13 +3,14 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 31/12/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef Kernel_hpp
 #define Kernel_hpp
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Disassembly {
 
 template <typename D, typename S> struct PartialDisassembly {
@@ -44,6 +45,7 @@ template <typename D, typename S, typename Disassembler> D Disassemble(
 	return partial_disassembly.disassembly;
 }
 
+}
 }
 }
 

Analyser/Static/Disassembler/Z80.cpp

@@ -3,17 +3,17 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 30/12/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "Z80.hpp"
 
 #include "Kernel.hpp"
 
-using namespace StaticAnalyser::Z80;
+using namespace Analyser::Static::Z80;
 namespace  {
 
-using PartialDisassembly = StaticAnalyser::Disassembly::PartialDisassembly<Disassembly, uint16_t>;
+using PartialDisassembly = Analyser::Static::Disassembly::PartialDisassembly<Disassembly, uint16_t>;
 
 class Accessor {
 	public:
@@ -611,9 +611,9 @@ struct Z80Disassembler {
 
 }	// end of anonymous namespace
 
-Disassembly StaticAnalyser::Z80::Disassemble(
+Disassembly Analyser::Static::Z80::Disassemble(
 	const std::vector<uint8_t> &memory,
 	const std::function<std::size_t(uint16_t)> &address_mapper,
 	std::vector<uint16_t> entry_points) {
-	return StaticAnalyser::Disassembly::Disassemble<Disassembly, uint16_t, Z80Disassembler>(memory, address_mapper, entry_points);
+	return Analyser::Static::Disassembly::Disassemble<Disassembly, uint16_t, Z80Disassembler>(memory, address_mapper, entry_points);
 }

Analyser/Static/Disassembler/Z80.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 30/12/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Disassembler_Z80_hpp
@@ -15,7 +15,8 @@
 #include <set>
 #include <vector>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Z80 {
 
 struct Instruction {
@@ -84,5 +85,6 @@ Disassembly Disassemble(
 
 }
 }
+}
 
 #endif /* StaticAnalyser_Disassembler_Z80_hpp */

Analyser/Static/DiskII/StaticAnalyser.cpp

@@ -0,0 +1,125 @@
+//
+//  StaticAnalyser.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 03/05/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#include "StaticAnalyser.hpp"
+
+#include "../AppleII/Target.hpp"
+#include "../Oric/Target.hpp"
+#include "../Disassembler/6502.hpp"
+#include "../Disassembler/AddressMapper.hpp"
+
+#include "../../../Storage/Disk/Track/TrackSerialiser.hpp"
+#include "../../../Storage/Disk/Encodings/AppleGCR/SegmentParser.hpp"
+
+namespace {
+
+Analyser::Static::Target *AppleTarget(const Storage::Encodings::AppleGCR::Sector *sector_zero) {
+	using Target = Analyser::Static::AppleII::Target;
+	auto *target = new Target;
+	target->machine = Analyser::Machine::AppleII;
+
+	if(sector_zero && sector_zero->encoding == Storage::Encodings::AppleGCR::Sector::Encoding::FiveAndThree) {
+		target->disk_controller = Target::DiskController::ThirteenSector;
+	} else {
+		target->disk_controller = Target::DiskController::SixteenSector;
+	}
+
+	return target;
+}
+
+Analyser::Static::Target *OricTarget(const Storage::Encodings::AppleGCR::Sector *sector_zero) {
+	using Target = Analyser::Static::Oric::Target;
+	auto *target = new Target;
+	target->machine = Analyser::Machine::Oric;
+	target->rom = Target::ROM::Pravetz;
+	target->disk_interface = Target::DiskInterface::Pravetz;
+	target->loading_command = "CALL 800\n";
+	return target;
+}
+
+}
+
+Analyser::Static::TargetList Analyser::Static::DiskII::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	// This analyser can comprehend disks only.
+	if(media.disks.empty()) return {};
+
+	// Grab track 0, sector 0: the boot sector.
+	auto track_zero = media.disks.front()->get_track_at_position(Storage::Disk::Track::Address(0, Storage::Disk::HeadPosition(0)));
+	auto sector_map = Storage::Encodings::AppleGCR::sectors_from_segment(
+		Storage::Disk::track_serialisation(*track_zero, Storage::Time(1, 50000)));
+
+	const Storage::Encodings::AppleGCR::Sector *sector_zero = nullptr;
+	for(const auto &pair: sector_map) {
+		if(!pair.second.address.sector) {
+			sector_zero = &pair.second;
+			break;
+		}
+	}
+
+	// If there's no boot sector then if there are also no sectors at all,
+	// decline to nominate a machine. Otherwise go with an Apple as the default.
+	TargetList targets;
+	if(!sector_zero) {
+		if(sector_map.empty()) {
+			return targets;
+		} else {
+			targets.push_back(std::unique_ptr<Analyser::Static::Target>(AppleTarget(nullptr)));
+			targets.back()->media = media;
+			return targets;
+		}
+	}
+
+	// If the boot sector looks like it's intended for the Oric, create an Oric.
+	// Otherwise go with the Apple II.
+
+	auto disassembly = Analyser::Static::MOS6502::Disassemble(sector_zero->data, Analyser::Static::Disassembler::OffsetMapper(0xb800), {0xb800});
+
+	bool did_read_shift_register = false;
+	bool is_oric = false;
+
+	// Look for a tight BPL loop reading the Oric's shift register address of 0x31c. The Apple II just has RAM there,
+	// so the probability of such a loop is infinitesimal.
+	for(const auto &instruction: disassembly.instructions_by_address) {
+		// Is this a read of the shift register?
+		if(
+			(
+				(instruction.second.operation == Analyser::Static::MOS6502::Instruction::LDA) ||
+				(instruction.second.operation == Analyser::Static::MOS6502::Instruction::LDX) ||
+				(instruction.second.operation == Analyser::Static::MOS6502::Instruction::LDY)
+			) &&
+			instruction.second.addressing_mode == Analyser::Static::MOS6502::Instruction::Absolute &&
+			instruction.second.address == 0x031c) {
+			did_read_shift_register = true;
+			continue;
+		}
+
+		if(did_read_shift_register) {
+			if(
+				instruction.second.operation == Analyser::Static::MOS6502::Instruction::BPL &&
+				instruction.second.address == 0xfb) {
+				is_oric = true;
+				break;
+			}
+
+			did_read_shift_register = false;
+		}
+	}
+
+	// Check also for calls into the 0x3xx page above 0x320, as that's where the Oric's boot ROM is.
+	for(const auto address: disassembly.outward_calls) {
+		is_oric |= address >= 0x320 && address < 0x400;
+	}
+
+	if(is_oric) {
+		targets.push_back(std::unique_ptr<Analyser::Static::Target>(OricTarget(sector_zero)));
+	} else {
+		targets.push_back(std::unique_ptr<Analyser::Static::Target>(AppleTarget(sector_zero)));
+	}
+	targets.back()->media = media;
+	return targets;
+}

Analyser/Static/DiskII/StaticAnalyser.hpp

@@ -0,0 +1,27 @@
+//
+//  StaticAnalyser.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 03/05/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_DiskII_StaticAnalyser_hpp
+#define Analyser_Static_DiskII_StaticAnalyser_hpp
+
+#include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace DiskII {
+
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
+
+}
+}
+}
+
+
+#endif /* Analyser_Static_DiskII_StaticAnalyser_hpp */

Analyser/Static/MSX/Cartridge.hpp

@@ -0,0 +1,40 @@
+//
+//  Cartridge.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 25/01/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Cartridge_hpp
+#define Cartridge_hpp
+
+#include "../../../Storage/Cartridge/Cartridge.hpp"
+
+namespace Analyser {
+namespace Static {
+namespace MSX {
+
+/*!
+	Extends the base cartridge class by adding a (guess at) the banking scheme.
+*/
+struct Cartridge: public ::Storage::Cartridge::Cartridge {
+	enum Type {
+		None,
+		Konami,
+		KonamiWithSCC,
+		ASCII8kb,
+		ASCII16kb,
+		FMPac
+	};
+	const Type type;
+
+	Cartridge(const std::vector<Segment> &segments, Type type) :
+		Storage::Cartridge::Cartridge(segments), type(type) {}
+};
+
+}
+}
+}
+
+#endif /* Cartridge_hpp */

Analyser/Static/MSX/StaticAnalyser.cpp

@@ -0,0 +1,299 @@
+//
+//  StaticAnalyser.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 25/11/2017.
+//  Copyright 2017 Thomas Harte. All rights reserved.
+//
+
+#include "StaticAnalyser.hpp"
+
+#include "Cartridge.hpp"
+#include "Tape.hpp"
+#include "Target.hpp"
+
+#include "../Disassembler/Z80.hpp"
+#include "../Disassembler/AddressMapper.hpp"
+
+#include <algorithm>
+
+static std::unique_ptr<Analyser::Static::Target> CartridgeTarget(
+	const Storage::Cartridge::Cartridge::Segment &segment,
+	uint16_t start_address,
+	Analyser::Static::MSX::Cartridge::Type type,
+	float confidence) {
+
+	// Size down to a multiple of 8kb in size and apply the start address.
+	std::vector<Storage::Cartridge::Cartridge::Segment> output_segments;
+	if(segment.data.size() & 0x1fff) {
+		std::vector<uint8_t> truncated_data;
+		std::vector<uint8_t>::difference_type truncated_size = static_cast<std::vector<uint8_t>::difference_type>(segment.data.size()) & ~0x1fff;
+		truncated_data.insert(truncated_data.begin(), segment.data.begin(), segment.data.begin() + truncated_size);
+		output_segments.emplace_back(start_address, truncated_data);
+	} else {
+		output_segments.emplace_back(start_address, segment.data);
+	}
+
+	std::unique_ptr<Analyser::Static::MSX::Target> target(new Analyser::Static::MSX::Target);
+	target->machine = Analyser::Machine::MSX;
+	target->confidence = confidence;
+
+	if(type == Analyser::Static::MSX::Cartridge::Type::None) {
+		target->media.cartridges.emplace_back(new Storage::Cartridge::Cartridge(output_segments));
+	} else {
+		target->media.cartridges.emplace_back(new Analyser::Static::MSX::Cartridge(output_segments, type));
+	}
+
+	return target;
+}
+
+/*
+	Expected standard cartridge format:
+
+		DEFB "AB" ; expansion ROM header
+		DEFW initcode ; start of the init code, 0 if no initcode
+		DEFW callstat; pointer to CALL statement handler, 0 if no such handler
+		DEFW device; pointer to expansion device handler, 0 if no such handler
+		DEFW basic ; pointer to the start of a tokenized basicprogram, 0 if no basicprogram
+		DEFS 6,0 ; room reserved for future extensions
+
+	MSX cartridges often include banking hardware; those games were marketed as MegaROMs. The file
+	format that the MSX community has decided upon doesn't retain the type of hardware included, so
+	this analyser has to guess.
+
+	(additional audio hardware is also sometimes included, but it's implied by the banking hardware)
+*/
+static Analyser::Static::TargetList CartridgeTargetsFrom(
+	const std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>> &cartridges) {
+	// No cartridges implies no targets.
+	if(cartridges.empty()) {
+		return {};
+	}
+
+	Analyser::Static::TargetList targets;
+	for(const auto &cartridge : cartridges) {
+		const auto &segments = cartridge->get_segments();
+
+		// Only one mapped item is allowed.
+		if(segments.size() != 1) continue;
+
+		// Which must be no more than 63 bytes larger than a multiple of 8 kb in size.
+		Storage::Cartridge::Cartridge::Segment segment = segments.front();
+		const size_t data_size = segment.data.size();
+		if(data_size < 0x2000 || (data_size & 0x1fff) > 64) continue;
+
+		// Check for a ROM header at address 0; if it's not found then try 0x4000
+		// and adjust the start address;
+		uint16_t start_address = 0;
+		bool found_start = false;
+		if(segment.data[0] == 0x41 && segment.data[1] == 0x42) {
+			start_address = 0x4000;
+			found_start = true;
+		} else if(segment.data.size() >= 0x8000 && segment.data[0x4000] == 0x41 && segment.data[0x4001] == 0x42) {
+			start_address = 0;
+			found_start = true;
+		}
+
+		// Reject cartridge if the ROM header wasn't found.
+		if(!found_start) continue;
+
+		uint16_t init_address = static_cast<uint16_t>(segment.data[2] | (segment.data[3] << 8));
+		// TODO: check for a rational init address?
+
+		// If this ROM is less than 48kb in size then it's an ordinary ROM. Just emplace it and move on.
+		if(data_size <= 0xc000) {
+			targets.emplace_back(CartridgeTarget(segment, start_address, Analyser::Static::MSX::Cartridge::Type::None, 1.0));
+			continue;
+		}
+
+		// If this ROM is greater than 48kb in size then some sort of MegaROM scheme must
+		// be at play; disassemble to try to figure it out.
+		std::vector<uint8_t> first_8k;
+		first_8k.insert(first_8k.begin(), segment.data.begin(), segment.data.begin() + 8192);
+		Analyser::Static::Z80::Disassembly disassembly =
+			Analyser::Static::Z80::Disassemble(
+				first_8k,
+				Analyser::Static::Disassembler::OffsetMapper(start_address),
+				{ init_address }
+			);
+
+//		// Look for a indirect store followed by an unconditional JP or CALL into another
+//		// segment, that's a fairly explicit sign where found.
+		using Instruction = Analyser::Static::Z80::Instruction;
+		std::map<uint16_t, Instruction> &instructions = disassembly.instructions_by_address;
+		bool is_ascii = false;
+//		auto iterator = instructions.begin();
+//		while(iterator != instructions.end()) {
+//			auto next_iterator = iterator;
+//			next_iterator++;
+//			if(next_iterator == instructions.end()) break;
+//
+//			if(	iterator->second.operation == Instruction::Operation::LD &&
+//				iterator->second.destination == Instruction::Location::Operand_Indirect &&
+//				(
+//					iterator->second.operand == 0x5000 ||
+//					iterator->second.operand == 0x6000 ||
+//					iterator->second.operand == 0x6800 ||
+//					iterator->second.operand == 0x7000 ||
+//					iterator->second.operand == 0x77ff ||
+//					iterator->second.operand == 0x7800 ||
+//					iterator->second.operand == 0x8000 ||
+//					iterator->second.operand == 0x9000 ||
+//					iterator->second.operand == 0xa000
+//				) &&
+//				(
+//					next_iterator->second.operation == Instruction::Operation::CALL ||
+//					next_iterator->second.operation == Instruction::Operation::JP
+//				) &&
+//				((next_iterator->second.operand >> 13) != (0x4000 >> 13))
+//			) {
+//				const uint16_t address = static_cast<uint16_t>(next_iterator->second.operand);
+//				switch(iterator->second.operand) {
+//					case 0x6000:
+//						if(address >= 0x6000 && address < 0x8000) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::KonamiWithSCC;
+//						}
+//					break;
+//					case 0x6800:
+//						if(address >= 0x6000 && address < 0x6800) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::ASCII8kb;
+//						}
+//					break;
+//					case 0x7000:
+//						if(address >= 0x6000 && address < 0x8000) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::KonamiWithSCC;
+//						}
+//						if(address >= 0x7000 && address < 0x7800) {
+//							is_ascii = true;
+//						}
+//					break;
+//					case 0x77ff:
+//						if(address >= 0x7000 && address < 0x7800) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::ASCII16kb;
+//						}
+//					break;
+//					case 0x7800:
+//						if(address >= 0xa000 && address < 0xc000) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::ASCII8kb;
+//						}
+//					break;
+//					case 0x8000:
+//						if(address >= 0x8000 && address < 0xa000) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::KonamiWithSCC;
+//						}
+//					break;
+//					case 0x9000:
+//						if(address >= 0x8000 && address < 0xa000) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::KonamiWithSCC;
+//						}
+//					break;
+//					case 0xa000:
+//						if(address >= 0xa000 && address < 0xc000) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::Konami;
+//						}
+//					break;
+//					case 0xb000:
+//						if(address >= 0xa000 && address < 0xc000) {
+//							target.msx.cartridge_type = Analyser::Static::MSXCartridgeType::KonamiWithSCC;
+//						}
+//					break;
+//				}
+//			}
+//
+//			iterator = next_iterator;
+
+		// Look for LD (nnnn), A instructions, and collate those addresses.
+		std::map<uint16_t, int> address_counts;
+		for(const auto &instruction_pair : instructions) {
+			if(	instruction_pair.second.operation == Instruction::Operation::LD &&
+				instruction_pair.second.destination == Instruction::Location::Operand_Indirect &&
+				instruction_pair.second.source == Instruction::Location::A) {
+				address_counts[static_cast<uint16_t>(instruction_pair.second.operand)]++;
+			}
+		}
+
+		// Weight confidences by number of observed hits.
+		float total_hits =
+			static_cast<float>(
+				address_counts[0x6000] + address_counts[0x6800] +
+				address_counts[0x7000] + address_counts[0x7800] +
+				address_counts[0x77ff] + address_counts[0x8000] +
+				address_counts[0xa000] + address_counts[0x5000] +
+				address_counts[0x9000] + address_counts[0xb000]
+			);
+
+		targets.push_back(CartridgeTarget(
+			segment,
+			start_address,
+			Analyser::Static::MSX::Cartridge::ASCII8kb,
+			static_cast<float>(	address_counts[0x6000] +
+								address_counts[0x6800] +
+								address_counts[0x7000] +
+								address_counts[0x7800]) / total_hits));
+		targets.push_back(CartridgeTarget(
+			segment,
+			start_address,
+			Analyser::Static::MSX::Cartridge::ASCII16kb,
+			static_cast<float>(	address_counts[0x6000] +
+								address_counts[0x7000] +
+								address_counts[0x77ff]) / total_hits));
+		if(!is_ascii) {
+			targets.push_back(CartridgeTarget(
+				segment,
+				start_address,
+				Analyser::Static::MSX::Cartridge::Konami,
+				static_cast<float>(	address_counts[0x6000] +
+									address_counts[0x8000] +
+									address_counts[0xa000]) / total_hits));
+		}
+		if(!is_ascii) {
+			targets.push_back(CartridgeTarget(
+				segment,
+				start_address,
+				Analyser::Static::MSX::Cartridge::KonamiWithSCC,
+				static_cast<float>(	address_counts[0x5000] +
+									address_counts[0x7000] +
+									address_counts[0x9000] +
+									address_counts[0xb000]) / total_hits));
+		}
+	}
+
+	return targets;
+}
+
+Analyser::Static::TargetList Analyser::Static::MSX::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	TargetList destination;
+
+	// Append targets for any cartridges that look correct.
+	auto cartridge_targets = CartridgeTargetsFrom(media.cartridges);
+	std::move(cartridge_targets.begin(), cartridge_targets.end(), std::back_inserter(destination));
+
+	// Consider building a target for disks and/or tapes.
+	std::unique_ptr<Target> target(new Target);
+
+	// Check tapes for loadable files.
+	for(auto &tape : media.tapes) {
+		std::vector<File> files_on_tape = GetFiles(tape);
+		if(!files_on_tape.empty()) {
+			switch(files_on_tape.front().type) {
+				case File::Type::ASCII:				target->loading_command = "RUN\"CAS:\r";		break;
+				case File::Type::TokenisedBASIC:	target->loading_command = "CLOAD\rRUN\r";		break;
+				case File::Type::Binary:			target->loading_command = "BLOAD\"CAS:\",R\r";	break;
+				default: break;
+			}
+			target->media.tapes.push_back(tape);
+		}
+	}
+
+	// Blindly accept disks for now.
+	target->media.disks = media.disks;
+	target->has_disk_drive = !media.disks.empty();
+
+	if(!target->media.empty()) {
+		target->machine = Machine::MSX;
+		target->confidence = 0.5;
+		destination.push_back(std::move(target));
+	}
+
+	return destination;
+}

Analyser/Static/MSX/StaticAnalyser.hpp

@@ -3,19 +3,23 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 25/11/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_MSX_StaticAnalyser_hpp
 #define StaticAnalyser_MSX_StaticAnalyser_hpp
 
 #include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace MSX {
 
-void AddTargets(const Media &media, std::list<Target> &destination);
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
 
+}
 }
 }
 

Analyser/Static/MSX/Tape.cpp

@@ -3,14 +3,14 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 25/12/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "Tape.hpp"
 
-#include "../../Storage/Tape/Parsers/MSX.hpp"
+#include "../../../Storage/Tape/Parsers/MSX.hpp"
 
-using namespace StaticAnalyser::MSX;
+using namespace Analyser::Static::MSX;
 
 File::File(File &&rhs) :
 	name(std::move(rhs.name)),
@@ -24,7 +24,7 @@ File::File() :
 	starting_address(0),
 	entry_address(0) {}	// For the sake of initialising in a defined state.
 
-std::vector<File> StaticAnalyser::MSX::GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
+std::vector<File> Analyser::Static::MSX::GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
 	std::vector<File> files;
 
 	Storage::Tape::BinaryTapePlayer tape_player(1000000);

Analyser/Static/MSX/Tape.hpp

@@ -3,18 +3,19 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 25/12/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_MSX_Tape_hpp
 #define StaticAnalyser_MSX_Tape_hpp
 
-#include "../../Storage/Tape/Tape.hpp"
+#include "../../../Storage/Tape/Tape.hpp"
 
 #include <string>
 #include <vector>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace MSX {
 
 struct File {
@@ -36,6 +37,7 @@ struct File {
 
 std::vector<File> GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape);
 
+}
 }
 }
 

Analyser/Static/MSX/Target.hpp

@@ -0,0 +1,28 @@
+//
+//  Target.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 02/04/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_MSX_Target_h
+#define Analyser_Static_MSX_Target_h
+
+#include "../StaticAnalyser.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace MSX {
+
+struct Target: public ::Analyser::Static::Target {
+	bool has_disk_drive = false;
+	std::string loading_command;
+};
+
+}
+}
+}
+
+#endif /* Analyser_Static_MSX_Target_h */

Analyser/Static/Oric/StaticAnalyser.cpp

@@ -3,29 +3,35 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 11/10/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "StaticAnalyser.hpp"
 
 #include "Tape.hpp"
+#include "Target.hpp"
+
 #include "../Disassembler/6502.hpp"
 #include "../Disassembler/AddressMapper.hpp"
 
-using namespace StaticAnalyser::Oric;
+#include "../../../Storage/Disk/Encodings/MFM/Parser.hpp"
 
-static int Score(const StaticAnalyser::MOS6502::Disassembly &disassembly, const std::set<uint16_t> &rom_functions, const std::set<uint16_t> &variable_locations) {
+#include <cstring>
+
+using namespace Analyser::Static::Oric;
+
+static int Score(const Analyser::Static::MOS6502::Disassembly &disassembly, const std::set<uint16_t> &rom_functions, const std::set<uint16_t> &variable_locations) {
 	int score = 0;
 
-	for(auto address : disassembly.outward_calls)	score += (rom_functions.find(address) != rom_functions.end()) ? 1 : -1;
-	for(auto address : disassembly.external_stores)	score += (variable_locations.find(address) != variable_locations.end()) ? 1 : -1;
-	for(auto address : disassembly.external_loads)	score += (variable_locations.find(address) != variable_locations.end()) ? 1 : -1;
+	for(const auto address : disassembly.outward_calls)		score += (rom_functions.find(address) != rom_functions.end()) ? 1 : -1;
+	for(const auto address : disassembly.external_stores)	score += (variable_locations.find(address) != variable_locations.end()) ? 1 : -1;
+	for(const auto address : disassembly.external_loads)	score += (variable_locations.find(address) != variable_locations.end()) ? 1 : -1;
 
 	return score;
 }
 
-static int Basic10Score(const StaticAnalyser::MOS6502::Disassembly &disassembly) {
-	std::set<uint16_t> rom_functions = {
+static int Basic10Score(const Analyser::Static::MOS6502::Disassembly &disassembly) {
+	const std::set<uint16_t> rom_functions = {
 		0x0228,	0x022b,
 		0xc3ca,	0xc3f8,	0xc448,	0xc47c,	0xc4b5,	0xc4e3,	0xc4e0,	0xc524,	0xc56f,	0xc5a2,	0xc5f8,	0xc60a,	0xc6a5,	0xc6de,	0xc719,	0xc738,
 		0xc773,	0xc824,	0xc832,	0xc841,	0xc8c1,	0xc8fe,	0xc91f,	0xc93f,	0xc941,	0xc91e,	0xc98b,	0xc996,	0xc9b3,	0xc9e0,	0xca0a,	0xca1c,
@@ -41,15 +47,15 @@ static int Basic10Score(const StaticAnalyser::MOS6502::Disassembly &disassembly)
 		0xf43c,	0xf4ef,	0xf523,	0xf561,	0xf535,	0xf57b,	0xf5d3,	0xf71a,	0xf73f,	0xf7e4,	0xf7e0,	0xf82f,	0xf88f,	0xf8af,	0xf8b5,	0xf920,
 		0xf967,	0xf960,	0xf9c9,	0xfa14,	0xfa85,	0xfa9b,	0xfab1,	0xfac7,	0xfafa,	0xfb10,	0xfb26,	0xfbb6,	0xfbfe
 	};
-	std::set<uint16_t> variable_locations = {
+	const std::set<uint16_t> variable_locations = {
 		0x0228, 0x0229, 0x022a, 0x022b, 0x022c, 0x022d, 0x0230
 	};
 
 	return Score(disassembly, rom_functions, variable_locations);
 }
 
-static int Basic11Score(const StaticAnalyser::MOS6502::Disassembly &disassembly) {
-	std::set<uint16_t> rom_functions = {
+static int Basic11Score(const Analyser::Static::MOS6502::Disassembly &disassembly) {
+	const std::set<uint16_t> rom_functions = {
 		0x0238,	0x023b,	0x023e,	0x0241,	0x0244,	0x0247,
 		0xc3c6,	0xc3f4,	0xc444,	0xc47c,	0xc4a8,	0xc4d3,	0xc4e0,	0xc524,	0xc55f,	0xc592,	0xc5e8,	0xc5fa,	0xc692,	0xc6b3,	0xc6ee,	0xc70d,
 		0xc748,	0xc7fd,	0xc809,	0xc816,	0xc82f,	0xc855,	0xc8c1,	0xc915,	0xc952,	0xc971,	0xc973,	0xc9a0,	0xc9bd,	0xc9c8,	0xc9e5,	0xca12,
@@ -66,30 +72,51 @@ static int Basic11Score(const StaticAnalyser::MOS6502::Disassembly &disassembly)
 		0xf88f,	0xf8af,	0xf8b5,	0xf920,	0xf967,	0xf9aa,	0xf9c9,	0xfa14,	0xfa9f,	0xfab5,	0xfacb,	0xfae1,	0xfb14,	0xfb2a,	0xfb40,	0xfbd0,
 		0xfc18
 	};
-	std::set<uint16_t> variable_locations = {
+	const std::set<uint16_t> variable_locations = {
 		0x0244, 0x0245, 0x0246, 0x0247, 0x0248, 0x0249, 0x024a, 0x024b, 0x024c
 	};
 
 	return Score(disassembly, rom_functions, variable_locations);
 }
 
-void StaticAnalyser::Oric::AddTargets(const Media &media, std::list<Target> &destination) {
-	Target target;
-	target.machine = Target::Oric;
-	target.probability = 1.0;
+static bool IsMicrodisc(Storage::Encodings::MFM::Parser &parser) {
+	/*
+		The Microdisc boot sector is sector 2 of track 0 and contains a 23-byte signature.
+	*/
+	Storage::Encodings::MFM::Sector *sector = parser.get_sector(0, 0, 2);
+	if(!sector) return false;
+	if(sector->samples.empty()) return false;
+
+	const std::vector<uint8_t> &first_sample = sector->samples[0];
+	if(first_sample.size() != 256) return false;
+
+	const uint8_t signature[] = {
+		0x00, 0x00, 0xFF, 0x00, 0xD0, 0x9F, 0xD0,
+		0x9F, 0x02, 0xB9, 0x01, 0x00, 0xFF, 0x00,
+		0x00, 0xB9, 0xE4, 0xB9, 0x00, 0x00, 0xE6,
+		0x12, 0x00
+	};
+
+	return !std::memcmp(signature, first_sample.data(), sizeof(signature));
+}
+
+Analyser::Static::TargetList Analyser::Static::Oric::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	std::unique_ptr<Target> target(new Target);
+	target->machine = Machine::Oric;
+	target->confidence = 0.5;
 
 	int basic10_votes = 0;
 	int basic11_votes = 0;
 
 	for(auto &tape : media.tapes) {
-		std::list<File> tape_files = GetFiles(tape);
+		std::vector<File> tape_files = GetFiles(tape);
 		tape->reset();
 		if(tape_files.size()) {
-			for(auto file : tape_files) {
+			for(const auto &file : tape_files) {
 				if(file.data_type == File::MachineCode) {
 					std::vector<uint16_t> entry_points = {file.starting_address};
-					StaticAnalyser::MOS6502::Disassembly disassembly =
-						StaticAnalyser::MOS6502::Disassemble(file.data, StaticAnalyser::Disassembler::OffsetMapper(file.starting_address), entry_points);
+					Analyser::Static::MOS6502::Disassembly disassembly =
+						Analyser::Static::MOS6502::Disassemble(file.data, Analyser::Static::Disassembler::OffsetMapper(file.starting_address), entry_points);
 
 					int basic10_score = Basic10Score(disassembly);
 					int basic11_score = Basic11Score(disassembly);
@@ -97,23 +124,32 @@ void StaticAnalyser::Oric::AddTargets(const Media &media, std::list<Target> &des
 				}
 			}
 
-			target.media.tapes.push_back(tape);
-			target.loading_command = "CLOAD\"\"\n";
+			target->media.tapes.push_back(tape);
+			target->loading_command = "CLOAD\"\"\n";
 		}
 	}
 
-	// trust that any disk supplied can be handled by the Microdisc. TODO: check.
 	if(!media.disks.empty()) {
-		target.oric.has_microdisc = true;
-		target.media.disks = media.disks;
-	} else {
-		target.oric.has_microdisc = false;
+		// Only the Microdisc is emulated right now, so accept only disks that it can boot from.
+		for(auto &disk: media.disks) {
+			Storage::Encodings::MFM::Parser parser(true, disk);
+			if(IsMicrodisc(parser)) {
+				target->disk_interface = Target::DiskInterface::Microdisc;
+				target->media.disks.push_back(disk);
+			}
+		}
 	}
+	else
+		target->disk_interface = Target::DiskInterface::None;
 
 	// TODO: really this should add two targets if not all votes agree
-	target.oric.use_atmos_rom = basic11_votes >= basic10_votes;
-	if(target.oric.has_microdisc) target.oric.use_atmos_rom = true;
+	if(basic11_votes >= basic10_votes || target->disk_interface == Target::DiskInterface::Microdisc)
+		target->rom = Target::ROM::BASIC11;
+	else
+		target->rom = Target::ROM::BASIC10;
 
-	if(target.media.tapes.size() || target.media.disks.size() || target.media.cartridges.size())
-		destination.push_back(target);
+	TargetList targets;
+	if(target->media.tapes.size() || target->media.disks.size() || target->media.cartridges.size())
+		targets.push_back(std::move(target));
+	return targets;
 }

Analyser/Static/Oric/StaticAnalyser.hpp

@@ -0,0 +1,26 @@
+//
+//  StaticAnalyser.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 11/10/2016.
+//  Copyright 2016 Thomas Harte. All rights reserved.
+//
+
+#ifndef StaticAnalyser_Oric_StaticAnalyser_hpp
+#define StaticAnalyser_Oric_StaticAnalyser_hpp
+
+#include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace Oric {
+
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
+
+}
+}
+}
+
+#endif /* StaticAnalyser_hpp */

Analyser/Static/Oric/Tape.cpp

@@ -3,16 +3,16 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 06/11/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "Tape.hpp"
-#include "../../Storage/Tape/Parsers/Oric.hpp"
+#include "../../../Storage/Tape/Parsers/Oric.hpp"
 
-using namespace StaticAnalyser::Oric;
+using namespace Analyser::Static::Oric;
 
-std::list<File> StaticAnalyser::Oric::GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
-	std::list<File> files;
+std::vector<File> Analyser::Static::Oric::GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
+	std::vector<File> files;
 	Storage::Tape::Oric::Parser parser;
 
 	while(!tape->is_at_end()) {

Analyser/Static/Oric/Tape.hpp

@@ -3,18 +3,19 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 06/11/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef StaticAnalyser_Oric_Tape_hpp
 #define StaticAnalyser_Oric_Tape_hpp
 
-#include "../../Storage/Tape/Tape.hpp"
-#include <list>
+#include "../../../Storage/Tape/Tape.hpp"
+
 #include <string>
 #include <vector>
 
-namespace StaticAnalyser {
+namespace Analyser {
+namespace Static {
 namespace Oric {
 
 struct File {
@@ -30,8 +31,9 @@ struct File {
 	std::vector<uint8_t> data;
 };
 
-std::list<File> GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape);
+std::vector<File> GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape);
 
+}
 }
 }
 

Analyser/Static/Oric/Target.hpp

@@ -0,0 +1,41 @@
+//
+//  Target.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/03/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_Oric_Target_h
+#define Analyser_Static_Oric_Target_h
+
+#include "../StaticAnalyser.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace Oric {
+
+struct Target: public ::Analyser::Static::Target {
+	enum class ROM {
+		BASIC10,
+		BASIC11,
+		Pravetz
+	};
+
+	enum class DiskInterface {
+		Microdisc,
+		Pravetz,
+		None
+	};
+
+	ROM rom = ROM::BASIC11;
+	DiskInterface disk_interface = DiskInterface::None;
+	std::string loading_command;
+};
+
+}
+}
+}
+
+#endif /* Analyser_Static_Oric_Target_h */

Analyser/Static/StaticAnalyser.cpp

@@ -0,0 +1,193 @@
+//
+//  StaticAnalyser.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 23/08/2016.
+//  Copyright 2016 Thomas Harte. All rights reserved.
+//
+
+#include "StaticAnalyser.hpp"
+
+#include <algorithm>
+#include <cstdlib>
+#include <cstring>
+#include <iterator>
+
+// Analysers
+#include "Acorn/StaticAnalyser.hpp"
+#include "AmstradCPC/StaticAnalyser.hpp"
+#include "AppleII/StaticAnalyser.hpp"
+#include "Atari/StaticAnalyser.hpp"
+#include "Coleco/StaticAnalyser.hpp"
+#include "Commodore/StaticAnalyser.hpp"
+#include "DiskII/StaticAnalyser.hpp"
+#include "MSX/StaticAnalyser.hpp"
+#include "Oric/StaticAnalyser.hpp"
+#include "ZX8081/StaticAnalyser.hpp"
+
+// Cartridges
+#include "../../Storage/Cartridge/Formats/BinaryDump.hpp"
+#include "../../Storage/Cartridge/Formats/PRG.hpp"
+
+// Disks
+#include "../../Storage/Disk/DiskImage/Formats/AcornADF.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/AppleDSK.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/CPCDSK.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/D64.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/G64.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/DMK.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/HFE.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/MSXDSK.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/NIB.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/OricMFMDSK.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/SSD.hpp"
+#include "../../Storage/Disk/DiskImage/Formats/WOZ.hpp"
+
+// Tapes
+#include "../../Storage/Tape/Formats/CAS.hpp"
+#include "../../Storage/Tape/Formats/CommodoreTAP.hpp"
+#include "../../Storage/Tape/Formats/CSW.hpp"
+#include "../../Storage/Tape/Formats/OricTAP.hpp"
+#include "../../Storage/Tape/Formats/TapePRG.hpp"
+#include "../../Storage/Tape/Formats/TapeUEF.hpp"
+#include "../../Storage/Tape/Formats/TZX.hpp"
+#include "../../Storage/Tape/Formats/ZX80O81P.hpp"
+
+// Target Platform Types
+#include "../../Storage/TargetPlatforms.hpp"
+
+using namespace Analyser::Static;
+
+static Media GetMediaAndPlatforms(const std::string &file_name, TargetPlatform::IntType &potential_platforms) {
+	Media result;
+
+	// Get the extension, if any; it will be assumed that extensions are reliable, so an extension is a broad-phase
+	// test as to file format.
+	std::string::size_type final_dot = file_name.find_last_of(".");
+	if(final_dot == std::string::npos) return result;
+	std::string extension = file_name.substr(final_dot + 1);
+	std::transform(extension.begin(), extension.end(), extension.begin(), ::tolower);
+
+#define Insert(list, class, platforms) \
+	list.emplace_back(new Storage::class(file_name));\
+	potential_platforms |= platforms;\
+	TargetPlatform::TypeDistinguisher *distinguisher = dynamic_cast<TargetPlatform::TypeDistinguisher *>(list.back().get());\
+	if(distinguisher) potential_platforms &= distinguisher->target_platform_type();
+
+#define TryInsert(list, class, platforms) \
+	try {\
+		Insert(list, class, platforms) \
+	} catch(...) {}
+
+#define Format(ext, list, class, platforms) \
+	if(extension == ext)	{		\
+		TryInsert(list, class, platforms)	\
+	}
+
+	Format("80", result.tapes, Tape::ZX80O81P, TargetPlatform::ZX8081)										// 80
+	Format("81", result.tapes, Tape::ZX80O81P, TargetPlatform::ZX8081)										// 81
+	Format("a26", result.cartridges, Cartridge::BinaryDump, TargetPlatform::Atari2600)						// A26
+	Format("adf", result.disks, Disk::DiskImageHolder<Storage::Disk::AcornADF>, TargetPlatform::Acorn)		// ADF
+	Format("bin", result.cartridges, Cartridge::BinaryDump, TargetPlatform::AllCartridge)					// BIN
+	Format("cas", result.tapes, Tape::CAS, TargetPlatform::MSX)												// CAS
+	Format("cdt", result.tapes, Tape::TZX, TargetPlatform::AmstradCPC)										// CDT
+	Format("col", result.cartridges, Cartridge::BinaryDump, TargetPlatform::ColecoVision)					// COL
+	Format("csw", result.tapes, Tape::CSW, TargetPlatform::AllTape)											// CSW
+	Format("d64", result.disks, Disk::DiskImageHolder<Storage::Disk::D64>, TargetPlatform::Commodore)		// D64
+	Format("dmk", result.disks, Disk::DiskImageHolder<Storage::Disk::DMK>, TargetPlatform::MSX)				// DMK
+	Format("do", result.disks, Disk::DiskImageHolder<Storage::Disk::AppleDSK>, TargetPlatform::DiskII)		// DO
+	Format("dsd", result.disks, Disk::DiskImageHolder<Storage::Disk::SSD>, TargetPlatform::Acorn)			// DSD
+	Format("dsk", result.disks, Disk::DiskImageHolder<Storage::Disk::CPCDSK>, TargetPlatform::AmstradCPC)	// DSK (Amstrad CPC)
+	Format("dsk", result.disks, Disk::DiskImageHolder<Storage::Disk::AppleDSK>, TargetPlatform::DiskII)		// DSK (Apple)
+	Format("dsk", result.disks, Disk::DiskImageHolder<Storage::Disk::MSXDSK>, TargetPlatform::MSX)			// DSK (MSX)
+	Format("dsk", result.disks, Disk::DiskImageHolder<Storage::Disk::OricMFMDSK>, TargetPlatform::Oric)		// DSK (Oric)
+	Format("g64", result.disks, Disk::DiskImageHolder<Storage::Disk::G64>, TargetPlatform::Commodore)		// G64
+	Format(	"hfe",
+			result.disks,
+			Disk::DiskImageHolder<Storage::Disk::HFE>,
+			TargetPlatform::Acorn | TargetPlatform::AmstradCPC | TargetPlatform::Commodore | TargetPlatform::Oric)
+			// HFE (TODO: switch to AllDisk once the MSX stops being so greedy)
+	Format("nib", result.disks, Disk::DiskImageHolder<Storage::Disk::NIB>, TargetPlatform::DiskII)			// NIB
+	Format("o", result.tapes, Tape::ZX80O81P, TargetPlatform::ZX8081)										// O
+	Format("p", result.tapes, Tape::ZX80O81P, TargetPlatform::ZX8081)										// P
+	Format("po", result.disks, Disk::DiskImageHolder<Storage::Disk::AppleDSK>, TargetPlatform::DiskII)		// PO
+	Format("p81", result.tapes, Tape::ZX80O81P, TargetPlatform::ZX8081)										// P81
+
+	// PRG
+	if(extension == "prg") {
+		// try instantiating as a ROM; failing that accept as a tape
+		try {
+			Insert(result.cartridges, Cartridge::PRG, TargetPlatform::Commodore)
+		} catch(...) {
+			try {
+				Insert(result.tapes, Tape::PRG, TargetPlatform::Commodore)
+			} catch(...) {}
+		}
+	}
+
+	Format(	"rom",
+			result.cartridges,
+			Cartridge::BinaryDump,
+			TargetPlatform::AcornElectron | TargetPlatform::ColecoVision | TargetPlatform::MSX)				// ROM
+	Format("ssd", result.disks, Disk::DiskImageHolder<Storage::Disk::SSD>, TargetPlatform::Acorn)			// SSD
+	Format("tap", result.tapes, Tape::CommodoreTAP, TargetPlatform::Commodore)								// TAP (Commodore)
+	Format("tap", result.tapes, Tape::OricTAP, TargetPlatform::Oric)										// TAP (Oric)
+	Format("tsx", result.tapes, Tape::TZX, TargetPlatform::MSX)												// TSX
+	Format("tzx", result.tapes, Tape::TZX, TargetPlatform::ZX8081)											// TZX
+	Format("uef", result.tapes, Tape::UEF, TargetPlatform::Acorn)											// UEF (tape)
+	Format("woz", result.disks, Disk::DiskImageHolder<Storage::Disk::WOZ>, TargetPlatform::DiskII)			// WOZ
+
+#undef Format
+#undef Insert
+#undef TryInsert
+
+	return result;
+}
+
+Media Analyser::Static::GetMedia(const std::string &file_name) {
+	TargetPlatform::IntType throwaway;
+	return GetMediaAndPlatforms(file_name, throwaway);
+}
+
+TargetList Analyser::Static::GetTargets(const std::string &file_name) {
+	TargetList targets;
+
+	// Collect all disks, tapes and ROMs as can be extrapolated from this file, forming the
+	// union of all platforms this file might be a target for.
+	TargetPlatform::IntType potential_platforms = 0;
+	Media media = GetMediaAndPlatforms(file_name, potential_platforms);
+
+	// Hand off to platform-specific determination of whether these things are actually compatible and,
+	// if so, how to load them.
+	#define Append(x) {\
+		auto new_targets = x::GetTargets(media, file_name, potential_platforms);\
+		std::move(new_targets.begin(), new_targets.end(), std::back_inserter(targets));\
+	}
+	if(potential_platforms & TargetPlatform::Acorn)			Append(Acorn);
+	if(potential_platforms & TargetPlatform::AmstradCPC)	Append(AmstradCPC);
+	if(potential_platforms & TargetPlatform::AppleII)		Append(AppleII);
+	if(potential_platforms & TargetPlatform::Atari2600)		Append(Atari);
+	if(potential_platforms & TargetPlatform::ColecoVision)	Append(Coleco);
+	if(potential_platforms & TargetPlatform::Commodore)		Append(Commodore);
+	if(potential_platforms & TargetPlatform::DiskII)		Append(DiskII);
+	if(potential_platforms & TargetPlatform::MSX)			Append(MSX);
+	if(potential_platforms & TargetPlatform::Oric)			Append(Oric);
+	if(potential_platforms & TargetPlatform::ZX8081)		Append(ZX8081);
+	#undef Append
+
+	// Reset any tapes to their initial position
+	for(const auto &target : targets) {
+		for(auto &tape : target->media.tapes) {
+			tape->reset();
+		}
+	}
+
+	// Sort by initial confidence. Use a stable sort in case any of the machine-specific analysers
+	// picked their insertion order carefully.
+	std::stable_sort(targets.begin(), targets.end(),
+		[] (const std::unique_ptr<Target> &a, const std::unique_ptr<Target> &b) {
+			return a->confidence > b->confidence;
+		});
+
+	return targets;
+}

Analyser/Static/StaticAnalyser.hpp

@@ -0,0 +1,66 @@
+//
+//  StaticAnalyser.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 23/08/2016.
+//  Copyright 2016 Thomas Harte. All rights reserved.
+//
+
+#ifndef StaticAnalyser_hpp
+#define StaticAnalyser_hpp
+
+#include "../Machines.hpp"
+
+#include "../../Storage/Tape/Tape.hpp"
+#include "../../Storage/Disk/Disk.hpp"
+#include "../../Storage/Cartridge/Cartridge.hpp"
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace Analyser {
+namespace Static {
+
+/*!
+	A list of disks, tapes and cartridges.
+*/
+struct Media {
+	std::vector<std::shared_ptr<Storage::Disk::Disk>> disks;
+	std::vector<std::shared_ptr<Storage::Tape::Tape>> tapes;
+	std::vector<std::shared_ptr<Storage::Cartridge::Cartridge>> cartridges;
+
+	bool empty() const {
+		return disks.empty() && tapes.empty() && cartridges.empty();
+	}
+};
+
+/*!
+	A list of disks, tapes and cartridges plus information about the machine to which to attach them and its configuration,
+	and instructions on how to launch the software attached, plus a measure of confidence in this target's correctness.
+*/
+struct Target {
+	virtual ~Target() {}
+
+	Machine machine;
+	Media media;
+	float confidence;
+};
+typedef std::vector<std::unique_ptr<Target>> TargetList;
+
+/*!
+	Attempts, through any available means, to return a list of potential targets for the file with the given name.
+
+	@returns The list of potential targets, sorted from most to least probable.
+*/
+TargetList GetTargets(const std::string &file_name);
+
+/*!
+	Inspects the supplied file and determines the media included.
+*/
+Media GetMedia(const std::string &file_name);
+
+}
+}
+
+#endif /* StaticAnalyser_hpp */

Analyser/Static/ZX8081/StaticAnalyser.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 04/06/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "StaticAnalyser.hpp"
@@ -11,7 +11,8 @@
 #include <string>
 #include <vector>
 
-#include "../../Storage/Tape/Parsers/ZX8081.hpp"
+#include "Target.hpp"
+#include "../../../Storage/Tape/Parsers/ZX8081.hpp"
 
 static std::vector<Storage::Data::ZX8081::File> GetFiles(const std::shared_ptr<Storage::Tape::Tape> &tape) {
 	std::vector<Storage::Data::ZX8081::File> files;
@@ -27,41 +28,43 @@ static std::vector<Storage::Data::ZX8081::File> GetFiles(const std::shared_ptr<S
 	return files;
 }
 
-void StaticAnalyser::ZX8081::AddTargets(const Media &media, std::list<Target> &destination, TargetPlatform::IntType potential_platforms) {
+Analyser::Static::TargetList Analyser::Static::ZX8081::GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms) {
+	TargetList destination;
 	if(!media.tapes.empty()) {
 		std::vector<Storage::Data::ZX8081::File> files = GetFiles(media.tapes.front());
 		media.tapes.front()->reset();
 		if(!files.empty()) {
-			StaticAnalyser::Target target;
-			target.machine = Target::ZX8081;
+			Target *target = new Target;
+			destination.push_back(std::unique_ptr<::Analyser::Static::Target>(target));
+			target->machine = Machine::ZX8081;
 
 			// Guess the machine type from the file only if it isn't already known.
 			switch(potential_platforms & (TargetPlatform::ZX80 | TargetPlatform::ZX81)) {
 				default:
-					target.zx8081.isZX81 = files.front().isZX81;
+					target->is_ZX81 = files.front().isZX81;
 				break;
 
-				case TargetPlatform::ZX80:	target.zx8081.isZX81 = false;	break;
-				case TargetPlatform::ZX81:	target.zx8081.isZX81 = true;	break;
+				case TargetPlatform::ZX80:	target->is_ZX81 = false;	break;
+				case TargetPlatform::ZX81:	target->is_ZX81 = true;		break;
 			}
 
 			/*if(files.front().data.size() > 16384) {
-				target.zx8081.memory_model = ZX8081MemoryModel::SixtyFourKB;
+				target->zx8081.memory_model = ZX8081MemoryModel::SixtyFourKB;
 			} else*/ if(files.front().data.size() > 1024) {
-				target.zx8081.memory_model = ZX8081MemoryModel::SixteenKB;
+				target->memory_model = Target::MemoryModel::SixteenKB;
 			} else {
-				target.zx8081.memory_model = ZX8081MemoryModel::Unexpanded;
+				target->memory_model = Target::MemoryModel::Unexpanded;
 			}
-			target.media.tapes = media.tapes;
+			target->media.tapes = media.tapes;
 
 			// TODO: how to run software once loaded? Might require a BASIC detokeniser.
-			if(target.zx8081.isZX81) {
-				target.loading_command = "J\"\"\n";
+			if(target->is_ZX81) {
+				target->loading_command = "J\"\"\n";
 			} else {
-				target.loading_command = "W\n";
+				target->loading_command = "W\n";
 			}
 
-			destination.push_back(target);
 		}
 	}
+	return destination;
 }

Analyser/Static/ZX8081/StaticAnalyser.hpp

@@ -0,0 +1,26 @@
+//
+//  StaticAnalyser.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 04/06/2017.
+//  Copyright 2017 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_ZX8081_StaticAnalyser_hpp
+#define Analyser_Static_ZX8081_StaticAnalyser_hpp
+
+#include "../StaticAnalyser.hpp"
+#include "../../../Storage/TargetPlatforms.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace ZX8081 {
+
+TargetList GetTargets(const Media &media, const std::string &file_name, TargetPlatform::IntType potential_platforms);
+
+}
+}
+}
+
+#endif /* StaticAnalyser_hpp */

Analyser/Static/ZX8081/Target.hpp

@@ -0,0 +1,36 @@
+//
+//  Target.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 09/03/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef Analyser_Static_ZX8081_Target_h
+#define Analyser_Static_ZX8081_Target_h
+
+#include "../StaticAnalyser.hpp"
+#include <string>
+
+namespace Analyser {
+namespace Static {
+namespace ZX8081 {
+
+struct Target: public ::Analyser::Static::Target {
+	enum class MemoryModel {
+		Unexpanded,
+		SixteenKB,
+		SixtyFourKB
+	};
+
+	MemoryModel memory_model = MemoryModel::Unexpanded;
+	bool is_ZX81 = false;
+	bool ZX80_uses_ZX81_ROM = false;
+	std::string loading_command;
+};
+
+}
+}
+}
+
+#endif /* Analyser_Static_ZX8081_Target_h */

ClockReceiver/ClockReceiver.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 22/07/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef ClockReceiver_hpp
@@ -52,79 +52,79 @@
 */
 template <class T> class WrappedInt {
 	public:
-		inline WrappedInt(int l) : length_(l) {}
-		inline WrappedInt() : length_(0) {}
+		constexpr WrappedInt(int l) : length_(l) {}
+		constexpr WrappedInt() : length_(0) {}
 
-		inline T &operator =(const T &rhs) {
+		T &operator =(const T &rhs) {
 			length_ = rhs.length_;
 			return *this;
 		}
 
-		inline T &operator +=(const T &rhs) {
+		T &operator +=(const T &rhs) {
 			length_ += rhs.length_;
 			return *static_cast<T *>(this);
 		}
 
-		inline T &operator -=(const T &rhs) {
+		T &operator -=(const T &rhs) {
 			length_ -= rhs.length_;
 			return *static_cast<T *>(this);
 		}
 
-		inline T &operator ++() {
+		T &operator ++() {
 			++ length_;
 			return *static_cast<T *>(this);
 		}
 
-		inline T &operator ++(int) {
+		T &operator ++(int) {
 			length_ ++;
 			return *static_cast<T *>(this);
 		}
 
-		inline T &operator --() {
+		T &operator --() {
 			-- length_;
 			return *static_cast<T *>(this);
 		}
 
-		inline T &operator --(int) {
+		T &operator --(int) {
 			length_ --;
 			return *static_cast<T *>(this);
 		}
 
-		inline T &operator %=(const T &rhs) {
+		T &operator %=(const T &rhs) {
 			length_ %= rhs.length_;
 			return *static_cast<T *>(this);
 		}
 
-		inline T &operator &=(const T &rhs) {
+		T &operator &=(const T &rhs) {
 			length_ &= rhs.length_;
 			return *static_cast<T *>(this);
 		}
 
-		inline T operator +(const T &rhs) const			{	return T(length_ + rhs.length_);	}
-		inline T operator -(const T &rhs) const			{	return T(length_ - rhs.length_);	}
+		constexpr T operator +(const T &rhs) const			{	return T(length_ + rhs.length_);	}
+		constexpr T operator -(const T &rhs) const			{	return T(length_ - rhs.length_);	}
 
-		inline T operator %(const T &rhs) const			{	return T(length_ % rhs.length_);	}
-		inline T operator &(const T &rhs) const			{	return T(length_ & rhs.length_);	}
+		constexpr T operator %(const T &rhs) const			{	return T(length_ % rhs.length_);	}
+		constexpr T operator &(const T &rhs) const			{	return T(length_ & rhs.length_);	}
 
-		inline T operator -() const						{	return T(- length_);				}
+		constexpr T operator -() const						{	return T(- length_);				}
 
-		inline bool operator <(const T &rhs) const		{	return length_ < rhs.length_;		}
-		inline bool operator >(const T &rhs) const		{	return length_ > rhs.length_;		}
-		inline bool operator <=(const T &rhs) const		{	return length_ <= rhs.length_;		}
-		inline bool operator >=(const T &rhs) const		{	return length_ >= rhs.length_;		}
-		inline bool operator ==(const T &rhs) const		{	return length_ == rhs.length_;		}
-		inline bool operator !=(const T &rhs) const		{	return length_ != rhs.length_;		}
+		constexpr bool operator <(const T &rhs) const		{	return length_ < rhs.length_;		}
+		constexpr bool operator >(const T &rhs) const		{	return length_ > rhs.length_;		}
+		constexpr bool operator <=(const T &rhs) const		{	return length_ <= rhs.length_;		}
+		constexpr bool operator >=(const T &rhs) const		{	return length_ >= rhs.length_;		}
+		constexpr bool operator ==(const T &rhs) const		{	return length_ == rhs.length_;		}
+		constexpr bool operator !=(const T &rhs) const		{	return length_ != rhs.length_;		}
 
-		inline bool operator !() const					{	return !length_;					}
+		constexpr bool operator !() const					{	return !length_;					}
 		// bool operator () is not supported because it offers an implicit cast to int, which is prone silently to permit misuse
 
-		inline int as_int() const { return length_; }
+		constexpr int as_int() const { return length_; }
 
 		/*!
-			Severs from @c this the effect of dividing by @c divisor — @c this will end up with
+			Severs from @c this the effect of dividing by @c divisor; @c this will end up with
 			the value of @c this modulo @c divisor and @c divided by @c divisor is returned.
 		*/
-		inline T divide(const T &divisor) {
+		T divide(const T &divisor) {
 			T result(length_ / divisor.length_);
 			length_ %= divisor.length_;
 			return result;
@@ -134,7 +134,7 @@ template <class T> class WrappedInt {
 			Flushes the value in @c this. The current value is returned, and the internal value
 			is reset to zero.
 		*/
-		inline T flush() {
+		T flush() {
 			T result(length_);
 			length_ = 0;
 			return result;
@@ -147,47 +147,47 @@ template <class T> class WrappedInt {
 		int length_;
 };
 
-/// Describes an integer number of whole cycles — pairs of clock signal transitions.
+/// Describes an integer number of whole cycles: pairs of clock signal transitions.
 class Cycles: public WrappedInt<Cycles> {
 	public:
-		inline Cycles(int l) : WrappedInt<Cycles>(l) {}
-		inline Cycles() : WrappedInt<Cycles>() {}
-		inline Cycles(const Cycles &cycles) : WrappedInt<Cycles>(cycles.length_) {}
+		constexpr Cycles(int l) : WrappedInt<Cycles>(l) {}
+		constexpr Cycles() : WrappedInt<Cycles>() {}
+		constexpr Cycles(const Cycles &cycles) : WrappedInt<Cycles>(cycles.length_) {}
 };
 
-/// Describes an integer number of half cycles — single clock signal transitions.
+/// Describes an integer number of half cycles: single clock signal transitions.
 class HalfCycles: public WrappedInt<HalfCycles> {
 	public:
-		inline HalfCycles(int l) : WrappedInt<HalfCycles>(l) {}
-		inline HalfCycles() : WrappedInt<HalfCycles>() {}
+		constexpr HalfCycles(int l) : WrappedInt<HalfCycles>(l) {}
+		constexpr HalfCycles() : WrappedInt<HalfCycles>() {}
 
-		inline HalfCycles(const Cycles cycles) : WrappedInt<HalfCycles>(cycles.as_int() * 2) {}
-		inline HalfCycles(const HalfCycles &half_cycles) : WrappedInt<HalfCycles>(half_cycles.length_) {}
+		constexpr HalfCycles(const Cycles cycles) : WrappedInt<HalfCycles>(cycles.as_int() * 2) {}
+		constexpr HalfCycles(const HalfCycles &half_cycles) : WrappedInt<HalfCycles>(half_cycles.length_) {}
 
 		/// @returns The number of whole cycles completely covered by this span of half cycles.
-		inline Cycles cycles() {
+		constexpr Cycles cycles() {
 			return Cycles(length_ >> 1);
 		}
 
 		/// Flushes the whole cycles in @c this, subtracting that many from the total stored here.
-		inline Cycles flush_cycles() {
+		Cycles flush_cycles() {
 			Cycles result(length_ >> 1);
 			length_ &= 1;
 			return result;
 		}
 
 		/// Flushes the half cycles in @c this, returning the number stored and setting this total to zero.
-		inline HalfCycles flush() {
+		HalfCycles flush() {
 			HalfCycles result(length_);
 			length_ = 0;
 			return result;
 		}
 
 		/*!
-			Severs from @c this the effect of dividing by @c divisor — @c this will end up with
+			Severs from @c this the effect of dividing by @c divisor; @c this will end up with
 			the value of @c this modulo @c divisor and @c divided by @c divisor is returned.
 		*/
-		inline Cycles divide_cycles(const Cycles &divisor) {
+		Cycles divide_cycles(const Cycles &divisor) {
 			HalfCycles half_divisor = HalfCycles(divisor);
 			Cycles result(length_ / half_divisor.length_);
 			length_ %= half_divisor.length_;
@@ -203,7 +203,6 @@ template <class T> class HalfClockReceiver: public T {
 	public:
 		using T::T;
 
-		using T::run_for;
 		inline void run_for(const HalfCycles half_cycles) {
 			half_cycles_ += half_cycles;
 			T::run_for(half_cycles_.flush_cycles());

ClockReceiver/ClockingHintSource.hpp

@@ -0,0 +1,88 @@
+//
+//  ClockingHintSource.h
+//  Clock Signal
+//
+//  Created by Thomas Harte on 20/08/2017.
+//  Copyright 2017 Thomas Harte. All rights reserved.
+//
+
+#ifndef ClockingHintSource_hpp
+#define ClockingHintSource_hpp
+
+namespace ClockingHint {
+
+enum class Preference {
+	/// The component doesn't currently require a clock signal.
+	None,
+	/// The component can be clocked only immediate prior to (explicit) accesses.
+	JustInTime,
+	/// The component require real-time clocking.
+	RealTime
+};
+
+class Source;
+
+struct Observer {
+	/// Called to inform an observer that the component @c component has changed its clocking requirements.
+	virtual void set_component_prefers_clocking(Source *component, Preference clocking) = 0;
+};
+
+/*!
+	An clocking hint source is any component that can provide hints as to the type of
+	clocking required for accurate emulation. A disk controller is an archetypal example.
+
+	Types of clocking are:
+
+		- none:
+			a component that acts and reacts to direct contact but does not have a state that autonomously evolves.
+			E.g. a ROM, RAM, or some kinds of disk controller when not in the process of performing a command.
+
+		- just-in-time:
+			a component that has an evolving state but can receive clock updates only immediately before a
+			direct contact. This is possibly the most common kind of component.
+
+		- real-time:
+			a component that needs to be clocked in 'real time' (i.e. in terms of the emulated machine). For example
+			so that it can announce an interrupt at the proper moment, because it is monitoring some aspect of
+			the machine rather than waiting to be called upon, or because there's some other non-obvious relationship
+			at play.
+
+	A clocking hint source can signal changes in preferred clocking to an observer.
+
+	This is intended to allow for performance improvements to machines with components that can be messaged selectively.
+	The observer callout is virtual so the intended use case is that a machine holds a component that might go through
+	periods of different clocking requirements.
+
+	Transitions should be sufficiently infrequent that a virtual call to announce them costs little enough that
+	the saved or deferred ::run_fors add up to a substantial amount.
+
+	The hint provided is just that: a hint. Owners may perform ::run_for at a greater frequency.
+*/
+class Source {
+	public:
+		/// Registers @c observer as the new clocking observer.
+		void set_clocking_hint_observer(Observer *observer) {
+			observer_ = observer;
+			update_clocking_observer();
+		}
+
+		/// @returns the current preferred clocking strategy.
+		virtual Preference preferred_clocking() = 0;
+
+	private:
+		Observer *observer_ = nullptr;
+
+	protected:
+		/*!
+			Provided for subclasses; call this whenever the clocking preference might have changed.
+			This will notify the observer if there is one.
+		*/
+		void update_clocking_observer() {
+			if(!observer_) return;
+			observer_->set_component_prefers_clocking(this, preferred_clocking());
+		}
+};
+
+}
+
+#endif /* ClockingHintSource_h */

ClockReceiver/ForceInline.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 01/08/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef ForceInline_hpp

ClockReceiver/Sleeper.hpp

@@ -1,60 +0,0 @@
-//
-//  Sleeper.h
-//  Clock Signal
-//
-//  Created by Thomas Harte on 20/08/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
-//
-
-#ifndef Sleeper_hpp
-#define Sleeper_hpp
-
-/*!
-	A sleeper is any component that sometimes requires a clock but at other times is 'asleep' — i.e. is not doing
-	any clock-derived work, so needn't receive a clock. A disk controller is an archetypal example.
-
-	A sleeper will signal sleeps and wakes to an observer.
-
-	This is intended to allow for performance improvements to machines with components that can sleep. The observer
-	callout is virtual so the intended use case is that a machine holds a component that might sleep. Its transitions
-	into and out of sleep are sufficiently infrequent that a virtual call to announce them costs sufficiently little that
-	the saved ::run_fors add up to a substantial amount.
-
-	By convention, sleeper components must be willing to accept ::run_for even after announcing sleep. It's a hint,
-	not a command.
-*/
-class Sleeper {
-	public:
-		Sleeper() : sleep_observer_(nullptr) {}
-
-		class SleepObserver {
-			public:
-				/// Called to inform an observer that the component @c component has either gone to sleep or become awake.
-				virtual void set_component_is_sleeping(void *component, bool is_sleeping) = 0;
-		};
-
-		/// Registers @c observer as the new sleep observer;
-		void set_sleep_observer(SleepObserver *observer) {
-			sleep_observer_ = observer;
-		}
-
-		/// @returns @c true if the component is currently sleeping; @c false otherwise.
-		virtual bool is_sleeping() = 0;
-
-	protected:
-		/// Provided for subclasses; send sleep announcements to the sleep_observer_.
-		SleepObserver *sleep_observer_;
-
-		/*!
-			Provided for subclasses; call this whenever is_sleeping might have changed, and the observer will be notified,
-			if one exists.
-
-			@c is_sleeping will be called only if there is an observer.
-		*/
-		void update_sleep_observer() {
-			if(!sleep_observer_) return;
-			sleep_observer_->set_component_is_sleeping(this, is_sleeping());
-		}
-};
-
-#endif /* Sleeper_h */

ClockReceiver/TimeTypes.hpp

@@ -0,0 +1,18 @@
+//
+//  TimeTypes.hpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 21/03/2018.
+//  Copyright 2018 Thomas Harte. All rights reserved.
+//
+
+#ifndef TimeTypes_h
+#define TimeTypes_h
+
+namespace Time {
+
+typedef double Seconds;
+
+}
+
+#endif /* TimeTypes_h */

Components/1770/1770.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 17/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "1770.hpp"
@@ -282,7 +282,7 @@ void WD1770::posit_event(int new_event_type) {
 			track_ = 0;
 			goto verify;
 		}
-		get_drive().step(step_direction_ ? 1 : -1);
+		get_drive().step(Storage::Disk::HeadPosition(step_direction_ ? 1 : -1));
 		unsigned int time_to_wait;
 		switch(command_ & 3) {
 			default:
@@ -522,7 +522,7 @@ void WD1770::posit_event(int new_event_type) {
 	type2_write_loop:
 		/*
 			This deviates from the data sheet slightly since that would prima facie request one more byte
-			of data than is actually written — the last time around the loop it has transferred from the
+			of data than is actually written; the last time around the loop it has transferred from the
 			data register to the data shift register, set data request, written the byte, checked that data
 			request has been satified, then finally considers whether all bytes are done. Based on both
 			natural expectations and the way that emulated machines responded, I believe that to be a

Components/1770/1770.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 17/09/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef _770_hpp
@@ -43,7 +43,6 @@ class WD1770: public Storage::Disk::MFMController {
 
 		/// Runs the controller for @c number_of_cycles cycles.
 		void run_for(const Cycles cycles);
-		using Storage::Disk::Controller::run_for;
 
 		enum Flag: uint8_t {
 			NotReady		= 0x80,

Components/6522/6522.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 06/06/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef _522_hpp
@@ -113,6 +113,9 @@ template <class T> class MOS6522: public MOS6522Base {
 		/*! Gets a register value. */
 		uint8_t get_register(int address);
 
+		/*! @returns the bus handler. */
+		T &bus_handler();
+
 	private:
 		T &bus_handler_;
 

Components/6522/Implementation/6522Base.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 04/09/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "../6522.hpp"

Components/6522/Implementation/6522Implementation.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 04/09/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 template <typename T> void MOS6522<T>::set_register(int address, uint8_t value) {
@@ -145,6 +145,10 @@ template <typename T> uint8_t MOS6522<T>::get_port_input(Port port, uint8_t outp
 	return (input & ~output_mask) | (output & output_mask);
 }
 
+template <typename T> T &MOS6522<T>::bus_handler() {
+	return bus_handler_;
+}
+
 // Delegate and communications
 template <typename T> void MOS6522<T>::reevaluate_interrupts() {
 	bool new_interrupt_status = get_interrupt_line();

Components/6522/Implementation/6522Storage.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 04/09/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef _522Storage_hpp

Components/6522/Implementation/IRQDelegatePortHandler.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 04/09/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "../6522.hpp"

Components/6532/6532.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 19/06/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef _532_hpp

Components/6560/6560.cpp

@@ -3,14 +3,14 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 05/06/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "6560.hpp"
 
 #include <cstring>
 
-using namespace MOS;
+using namespace MOS::MOS6560;
 
 AudioGenerator::AudioGenerator(Concurrency::DeferringAsyncTaskQueue &audio_queue) :
 	audio_queue_(audio_queue) {}
@@ -18,7 +18,7 @@ AudioGenerator::AudioGenerator(Concurrency::DeferringAsyncTaskQueue &audio_queue
 
 void AudioGenerator::set_volume(uint8_t volume) {
 	audio_queue_.defer([=]() {
-		volume_ = volume;
+		volume_ = static_cast<int16_t>(volume) * range_multiplier_;
 	});
 }
 
@@ -106,7 +106,7 @@ static uint8_t noise_pattern[] = {
 // means every second cycle, etc.
 
 void AudioGenerator::get_samples(std::size_t number_of_samples, int16_t *target) {
-	for(unsigned int c = 0; c < number_of_samples; c++) {
+	for(unsigned int c = 0; c < number_of_samples; ++c) {
 		update(0, 2, shift);
 		update(1, 1, shift);
 		update(2, 0, shift);
@@ -114,17 +114,17 @@ void AudioGenerator::get_samples(std::size_t number_of_samples, int16_t *target)
 
 		// this sums the output of all three sounds channels plus a DC offset for volume;
 		// TODO: what's the real ratio of this stuff?
-		target[c] = (
+		target[c] = static_cast<int16_t>(
 			(shift_registers_[0]&1) +
 			(shift_registers_[1]&1) +
 			(shift_registers_[2]&1) +
 			((noise_pattern[shift_registers_[3] >> 3] >> (shift_registers_[3]&7))&(control_registers_[3] >> 7)&1)
-		) * volume_ * 700 + volume_ * 44;
+		) * volume_ + (volume_ >> 4);
 	}
 }
 
 void AudioGenerator::skip_samples(std::size_t number_of_samples) {
-	for(unsigned int c = 0; c < number_of_samples; c++) {
+	for(unsigned int c = 0; c < number_of_samples; ++c) {
 		update(0, 2, shift);
 		update(1, 1, shift);
 		update(2, 0, shift);
@@ -132,6 +132,10 @@ void AudioGenerator::skip_samples(std::size_t number_of_samples) {
 	}
 }
 
+void AudioGenerator::set_sample_volume_range(std::int16_t range) {
+	range_multiplier_ = static_cast<int16_t>(range / 64);
+}
+
 #undef shift
 #undef increment
 #undef update

Components/6560/6560.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 05/06/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef _560_hpp
@@ -16,6 +16,7 @@
 #include "../../Outputs/Speaker/Implementation/SampleSource.hpp"
 
 namespace MOS {
+namespace MOS6560 {
 
 // audio state
 class AudioGenerator: public ::Outputs::Speaker::SampleSource {
@@ -25,8 +26,10 @@ class AudioGenerator: public ::Outputs::Speaker::SampleSource {
 		void set_volume(uint8_t volume);
 		void set_control(int channel, uint8_t value);
 
+		// For ::SampleSource.
 		void get_samples(std::size_t number_of_samples, int16_t *target);
 		void skip_samples(std::size_t number_of_samples);
+		void set_sample_volume_range(std::int16_t range);
 
 	private:
 		Concurrency::DeferringAsyncTaskQueue &audio_queue_;
@@ -34,7 +37,19 @@ class AudioGenerator: public ::Outputs::Speaker::SampleSource {
 		unsigned int counters_[4] = {2, 1, 0, 0}; 	// create a slight phase offset for the three channels
 		unsigned int shift_registers_[4] = {0, 0, 0, 0};
 		uint8_t control_registers_[4] = {0, 0, 0, 0};
-		uint8_t volume_ = 0;
+		int16_t volume_ = 0;
+		int16_t range_multiplier_ = 1;
+};
+
+struct BusHandler {
+	void perform_read(uint16_t address, uint8_t *pixel_data, uint8_t *colour_data) {
+		*pixel_data = 0xff;
+		*colour_data = 0xff;
+	}
+};
+
+enum class OutputMode {
+	PAL, NTSC
 };
 
 /*!
@@ -45,27 +60,36 @@ class AudioGenerator: public ::Outputs::Speaker::SampleSource {
 
 	@c set_register and @c get_register provide register access.
 */
-template <class T> class MOS6560 {
+template <class BusHandler> class MOS6560 {
 	public:
-		MOS6560() :
+		MOS6560(BusHandler &bus_handler) :
+				bus_handler_(bus_handler),
 				crt_(new Outputs::CRT::CRT(65*4, 4, Outputs::CRT::DisplayType::NTSC60, 2)),
 				audio_generator_(audio_queue_),
 				speaker_(audio_generator_)
 		{
-			crt_->set_composite_sampling_function(
-				"float composite_sample(usampler2D texID, vec2 coordinate, vec2 iCoordinate, float phase, float amplitude)"
+			crt_->set_svideo_sampling_function(
+				"vec2 svideo_sample(usampler2D texID, vec2 coordinate, vec2 iCoordinate, float phase, float amplitude)"
 				"{"
 					"vec2 yc = texture(texID, coordinate).rg / vec2(255.0);"
-					"float phaseOffset = 6.283185308 * 2.0 * yc.y;"
 
-					"float chroma = cos(phase + phaseOffset);"
-					"return mix(yc.x, step(yc.y, 0.75) * chroma, amplitude);"
+					"float phaseOffset = 6.283185308 * 2.0 * yc.y;"
+					"float chroma = step(yc.y, 0.75) * cos(phase + phaseOffset);"
+
+					"return vec2(yc.x, chroma);"
 				"}");
 
+			// default to s-video output
+			crt_->set_video_signal(Outputs::CRT::VideoSignal::SVideo);
+
 			// default to NTSC
 			set_output_mode(OutputMode::NTSC);
 		}
 
+		~MOS6560() {
+			audio_queue_.flush();
+		}
+
 		void set_clock_rate(double clock_rate) {
 			speaker_.set_input_rate(static_cast<float>(clock_rate / 4.0));
 		}
@@ -77,38 +101,34 @@ template <class T> class MOS6560 {
 			speaker_.set_high_frequency_cutoff(cutoff);
 		}
 
-		enum OutputMode {
-			PAL, NTSC
-		};
-
 		/*!
 			Sets the output mode to either PAL or NTSC.
 		*/
 		void set_output_mode(OutputMode output_mode) {
 			output_mode_ = output_mode;
 
-			// Lumunances are encoded trivially: on a 0–255 scale.
+			// Luminances are encoded trivially: on a 0-255 scale.
 			const uint8_t luminances[16] = {
-				0,		255,	109,	189,
-				199,	144,	159,	161,
-				126,	227,	227,	207,
-				235,	173,	188,	196
+				0,		255,	64,		192,
+				128,	128,	64,		192,
+				128,	192,	128,	255,
+				192,	192,	128,	255
 			};
 
-			// Chrominances are encoded such that 0–128 is a complete revolution of phase;
+			// Chrominances are encoded such that 0-128 is a complete revolution of phase;
 			// anything above 191 disables the colour subcarrier. Phase is relative to the
 			// colour burst, so 0 is green.
 			const uint8_t pal_chrominances[16] = {
-				255,	255,	40,		112,
-				8,		88,		120,	56,
-				40,		48,		40,		112,
-				8,		88,		120,	56,
+				255,	255,	37,		101,
+				19,		86,		123,	59,
+				46,		53,		37,		101,
+				19,		86,		123,	59,
 			};
 			const uint8_t ntsc_chrominances[16] = {
-				255,	255,	8,		72,
-				32,		88,		48,		112,
-				0,		0,		8,		72,
-				32,		88,		48,		112,
+				255,	255,	121,	57,
+				103,	42,		80,		16,
+				0,		9,		121,	57,
+				103,	42,		80,		16,
 			};
 			const uint8_t *chrominances;
 			Outputs::CRT::DisplayType display_type;
@@ -118,7 +138,8 @@ template <class T> class MOS6560 {
 					chrominances = pal_chrominances;
 					display_type = Outputs::CRT::DisplayType::PAL50;
 					timing_.cycles_per_line = 71;
-					timing_.line_counter_increment_offset = 0;
+					timing_.line_counter_increment_offset = 4;
+					timing_.final_line_increment_position = timing_.cycles_per_line - timing_.line_counter_increment_offset;
 					timing_.lines_per_progressive_field = 312;
 					timing_.supports_interlacing = false;
 				break;
@@ -127,23 +148,23 @@ template <class T> class MOS6560 {
 					chrominances = ntsc_chrominances;
 					display_type = Outputs::CRT::DisplayType::NTSC60;
 					timing_.cycles_per_line = 65;
-					timing_.line_counter_increment_offset = 65 - 33;	// TODO: this is a bit of a hack; separate vertical and horizontal counting
+					timing_.line_counter_increment_offset = 40;
+					timing_.final_line_increment_position = 58;
 					timing_.lines_per_progressive_field = 261;
 					timing_.supports_interlacing = true;
 				break;
 			}
 
 			crt_->set_new_display_type(static_cast<unsigned int>(timing_.cycles_per_line*4), display_type);
-			crt_->set_visible_area(Outputs::CRT::Rect(0.05f, 0.05f, 0.9f, 0.9f));
 
-//			switch(output_mode) {
-//				case OutputMode::PAL:
-//					crt_->set_visible_area(crt_->get_rect_for_area(16, 237, 15*4, 55*4, 4.0f / 3.0f));
-//				break;
-//				case OutputMode::NTSC:
-//					crt_->set_visible_area(crt_->get_rect_for_area(16, 237, 11*4, 55*4, 4.0f / 3.0f));
-//				break;
-//			}
+			switch(output_mode) {
+				case OutputMode::PAL:
+					crt_->set_visible_area(Outputs::CRT::Rect(0.1f, 0.07f, 0.9f, 0.9f));
+				break;
+				case OutputMode::NTSC:
+					crt_->set_visible_area(Outputs::CRT::Rect(0.05f, 0.05f, 0.9f, 0.9f));
+				break;
+			}
 
 			for(int c = 0; c < 16; c++) {
 				uint8_t *colour = reinterpret_cast<uint8_t *>(&colours_[c]);
@@ -166,7 +187,6 @@ template <class T> class MOS6560 {
 
 				// keep track of internal time relative to this scanline
 				horizontal_counter_++;
-				full_frame_counter_++;
 				if(horizontal_counter_ == timing_.cycles_per_line) {
 					if(horizontal_drawing_latch_) {
 						current_character_row_++;
@@ -188,9 +208,8 @@ template <class T> class MOS6560 {
 					horizontal_drawing_latch_ = false;
 
 					vertical_counter_ ++;
-					if(vertical_counter_ == (registers_.interlaced ? (is_odd_frame_ ? 262 : 263) : timing_.lines_per_progressive_field)) {
+					if(vertical_counter_ == lines_this_field()) {
 						vertical_counter_ = 0;
-						full_frame_counter_ = 0;
 
 						if(output_mode_ == OutputMode::NTSC) is_odd_frame_ ^= true;
 						current_row_ = 0;
@@ -238,7 +257,7 @@ template <class T> class MOS6560 {
 
 				uint8_t pixel_data;
 				uint8_t colour_data;
-				static_cast<T *>(this)->perform_read(fetch_address, &pixel_data, &colour_data);
+				bus_handler_.perform_read(fetch_address, &pixel_data, &colour_data);
 
 				// TODO: there should be a further two-cycle delay on pixels being output; the reverse bit should
 				// divide the byte it is set for 3:1 and then continue as usual.
@@ -252,7 +271,7 @@ template <class T> class MOS6560 {
 
 				// apply vertical sync
 				if(
-					(vertical_counter_ < 3 && (is_odd_frame_ || !registers_.interlaced)) ||
+					(vertical_counter_ < 3 && is_odd_frame()) ||
 					(registers_.interlaced &&
 						(
 							(vertical_counter_ == 0 && horizontal_counter_ > 32) ||
@@ -268,7 +287,7 @@ template <class T> class MOS6560 {
 						case State::Sync:			crt_->output_sync(cycles_in_state_ * 4);														break;
 						case State::ColourBurst:	crt_->output_colour_burst(cycles_in_state_ * 4, (is_odd_frame_ || is_odd_line_) ? 128 : 0);		break;
 						case State::Border:			output_border(cycles_in_state_ * 4);															break;
-						case State::Pixels:			crt_->output_data(cycles_in_state_ * 4, 1);														break;
+						case State::Pixels:			crt_->output_data(cycles_in_state_ * 4);														break;
 					}
 					output_state_ = this_state_;
 					cycles_in_state_ = 0;
@@ -281,6 +300,9 @@ template <class T> class MOS6560 {
 				cycles_in_state_++;
 
 				if(this_state_ == State::Pixels) {
+					// TODO: palette changes can happen within half-characters; the below needs to be divided.
+					// Also: a perfect opportunity to rearrange this inner loop for no longer needing to be
+					// two parts with a cooperative owner?
 					if(column_counter_&1) {
 						character_value_ = pixel_data;
 
@@ -321,7 +343,10 @@ template <class T> class MOS6560 {
 						character_code_ = pixel_data;
 						character_colour_ = colour_data;
 					}
+				}
 
+				// Keep counting columns even if sync or the colour burst have interceded.
+				if(column_counter_ >= 0 && column_counter_ < columns_this_line_*2) {
 					column_counter_++;
 				}
 			}
@@ -404,15 +429,15 @@ template <class T> class MOS6560 {
 		*/
 		uint8_t get_register(int address) {
 			address &= 0xf;
-			int current_line = (full_frame_counter_ + timing_.line_counter_increment_offset) / timing_.cycles_per_line;
 			switch(address) {
 				default: return registers_.direct_values[address];
-				case 0x03: return static_cast<uint8_t>(current_line << 7) | (registers_.direct_values[3] & 0x7f);
-				case 0x04: return (current_line >> 1) & 0xff;
+				case 0x03: return static_cast<uint8_t>(raster_value() << 7) | (registers_.direct_values[3] & 0x7f);
+				case 0x04: return (raster_value() >> 1) & 0xff;
 			}
 		}
 
 	private:
+		BusHandler &bus_handler_;
 		std::unique_ptr<Outputs::CRT::CRT> crt_;
 
 		Concurrency::DeferringAsyncTaskQueue audio_queue_;
@@ -443,7 +468,29 @@ template <class T> class MOS6560 {
 		unsigned int cycles_in_state_;
 
 		// counters that cover an entire field
-		int horizontal_counter_ = 0, vertical_counter_ = 0, full_frame_counter_;
+		int horizontal_counter_ = 0, vertical_counter_ = 0;
+		const int lines_this_field() {
+			// Necessary knowledge here: only the NTSC 6560 supports interlaced video.
+			return registers_.interlaced ? (is_odd_frame_ ? 262 : 263) : timing_.lines_per_progressive_field;
+		}
+		const int raster_value() {
+			const int bonus_line = (horizontal_counter_ + timing_.line_counter_increment_offset) / timing_.cycles_per_line;
+			const int line = vertical_counter_ + bonus_line;
+			const int final_line = lines_this_field();
+
+			if(line < final_line)
+				return line;
+
+			if(is_odd_frame()) {
+				return (horizontal_counter_ >= timing_.final_line_increment_position) ? 0 : final_line - 1;
+			} else {
+				return line % final_line;
+			}
+			// Cf. http://www.sleepingelephant.com/ipw-web/bulletin/bb/viewtopic.php?f=14&t=7237&start=15#p80737
+		}
+		bool is_odd_frame() {
+			return is_odd_frame_ || !registers_.interlaced;
+		}
 
 		// latches dictating start and length of drawing
 		bool vertical_drawing_latch_, horizontal_drawing_latch_;
@@ -473,12 +520,14 @@ template <class T> class MOS6560 {
 		struct {
 			int cycles_per_line;
 			int line_counter_increment_offset;
+			int final_line_increment_position;
 			int lines_per_progressive_field;
 			bool supports_interlacing;
 		} timing_;
 		OutputMode output_mode_;
 };
 
+}
 }
 
 #endif /* _560_hpp */

Components/6845/CRTC6845.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 31/07/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef CRTC6845_hpp
@@ -35,7 +35,7 @@ class BusHandler {
 		void perform_bus_cycle_phase1(const BusState &) {}
 
 		/*!
-			Performs the second phase of a 6845 bus cycle. Some bus state — including sync — is updated
+			Performs the second phase of a 6845 bus cycle. Some bus state, including sync, is updated
 			directly after phase 1 and hence is visible to an observer during phase 2. Handlers may therefore
 			implement @c perform_bus_cycle_phase2 to be notified of the availability of that state without
 			having to wait until the next cycle has begun.

Components/8255/i8255.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 01/08/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef i8255_hpp

Components/8272/i8272.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 05/08/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "i8272.hpp"
@@ -83,8 +83,10 @@ i8272::i8272(BusHandler &bus_handler, Cycles clock_rate) :
 	posit_event(static_cast<int>(Event8272::CommandByte));
 }
 
-bool i8272::is_sleeping() {
-	return is_sleeping_ && Storage::Disk::MFMController::is_sleeping();
+ClockingHint::Preference i8272::preferred_clocking() {
+	const auto mfm_controller_preferred_clocking = Storage::Disk::MFMController::preferred_clocking();
+	if(mfm_controller_preferred_clocking != ClockingHint::Preference::None) return mfm_controller_preferred_clocking;
+	return is_sleeping_ ? ClockingHint::Preference::None : ClockingHint::Preference::JustInTime;
 }
 
 void i8272::run_for(Cycles cycles) {
@@ -115,7 +117,7 @@ void i8272::run_for(Cycles cycles) {
 					int direction = (drives_[c].target_head_position < drives_[c].head_position) ? -1 : 1;
 					printf("Target %d versus believed %d\n", drives_[c].target_head_position, drives_[c].head_position);
 					select_drive(c);
-					get_drive().step(direction);
+					get_drive().step(Storage::Disk::HeadPosition(direction));
 					if(drives_[c].target_head_position >= 0) drives_[c].head_position += direction;
 
 					// Check for completion.
@@ -159,7 +161,7 @@ void i8272::run_for(Cycles cycles) {
 	}
 
 	is_sleeping_ = !delay_time_ && !drives_seeking_ && !head_timers_running_;
-	if(is_sleeping_) update_sleep_observer();
+	if(is_sleeping_) update_clocking_observer();
 }
 
 void i8272::set_register(int address, uint8_t value) {
@@ -198,7 +200,7 @@ uint8_t i8272::get_register(int address) {
 
 #define MS_TO_CYCLES(x)			x * 8000
 #define WAIT_FOR_EVENT(mask)	resume_point_ = __LINE__; interesting_event_mask_ = static_cast<int>(mask); return; case __LINE__:
-#define WAIT_FOR_TIME(ms)		resume_point_ = __LINE__; interesting_event_mask_ = static_cast<int>(Event8272::Timer); delay_time_ = MS_TO_CYCLES(ms); is_sleeping_ = false; update_sleep_observer(); case __LINE__: if(delay_time_) return;
+#define WAIT_FOR_TIME(ms)		resume_point_ = __LINE__; interesting_event_mask_ = static_cast<int>(Event8272::Timer); delay_time_ = MS_TO_CYCLES(ms); is_sleeping_ = false; update_clocking_observer(); case __LINE__: if(delay_time_) return;
 
 #define PASTE(x, y) x##y
 #define CONCAT(x, y) PASTE(x, y)
@@ -257,7 +259,7 @@ uint8_t i8272::get_register(int address) {
 		if(drives_[active_drive_].head_unload_delay[active_head_] == 0) {	\
 			head_timers_running_++;	\
 			is_sleeping_ = false;	\
-			update_sleep_observer();	\
+			update_clocking_observer();	\
 		}	\
 		drives_[active_drive_].head_unload_delay[active_head_] = MS_TO_CYCLES(head_unload_time_);\
 	}
@@ -434,7 +436,7 @@ void i8272::posit_event(int event_type) {
 			ClearControlMark();
 			if(event_type == static_cast<int>(Event::Token)) {
 				if(get_latest_token().type != Token::Data && get_latest_token().type != Token::DeletedData) {
-					// Something other than a data mark came next — impliedly an ID or index mark.
+					// Something other than a data mark came next, impliedly an ID or index mark.
 					SetMissingAddressMark();
 					SetMissingDataAddressMark();
 					goto abort;	// TODO: or read_next_data?
@@ -720,7 +722,7 @@ void i8272::posit_event(int event_type) {
 				if(drives_[drive].phase != Drive::Seeking) {
 					drives_seeking_++;
 					is_sleeping_ = false;
-					update_sleep_observer();
+					update_clocking_observer();
 				}
 
 				// Set currently seeking, with a step to occur right now (yes, it sounds like jamming these
@@ -828,7 +830,7 @@ void i8272::posit_event(int event_type) {
 
 			goto post_result;
 
-	// Posts whatever is in result_stack_ as a result phase. Be aware that it is a stack — the
+	// Posts whatever is in result_stack_ as a result phase. Be aware that it is a stack, so the
 	// last thing in it will be returned first.
 	post_result:
 			printf("Result to %02x, main %02x: ", command_[0] & 0x1f, main_status_);

Components/8272/i8272.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 05/08/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef i8272_hpp
@@ -39,7 +39,7 @@ class i8272: public Storage::Disk::MFMController {
 		void set_dma_acknowledge(bool dack);
 		void set_terminal_count(bool tc);
 
-		bool is_sleeping();
+		ClockingHint::Preference preferred_clocking() override;
 
 	protected:
 		virtual void select_drive(int number) = 0;
@@ -67,7 +67,7 @@ class i8272: public Storage::Disk::MFMController {
 			ResultEmpty = (1 << 5),
 			NoLongerReady = (1 << 6)
 		};
-		void posit_event(int type);
+		void posit_event(int type) override;
 		int interesting_event_mask_ = static_cast<int>(Event8272::CommandByte);
 		int resume_point_ = 0;
 		bool is_access_command_ = false;

Components/9918/9918.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 25/11/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #include "9918.hpp"
@@ -53,6 +53,34 @@ const uint8_t StatusFifthSprite = 0x40;
 const int StatusSpriteCollisionShift = 5;
 const uint8_t StatusSpriteCollision = 0x20;
 
+struct ReverseTable {
+	std::uint8_t map[256];
+
+	ReverseTable() {
+		for(int c = 0; c < 256; ++c) {
+			map[c] = static_cast<uint8_t>(
+				((c & 0x80) >> 7) |
+				((c & 0x40) >> 5) |
+				((c & 0x20) >> 3) |
+				((c & 0x10) >> 1) |
+				((c & 0x08) << 1) |
+				((c & 0x04) << 3) |
+				((c & 0x02) << 5) |
+				((c & 0x01) << 7)
+			);
+		}
+	}
+} reverse_table;
+
+// Bits are reversed in the internal mode value; they're stored
+// in the order M1 M2 M3. Hence the definitions below.
+enum ScreenMode {
+	Text = 4,
+	MultiColour = 2,
+	ColouredText = 0,
+	Graphics = 1
+};
+
 }
 
 TMS9918Base::TMS9918Base() :
@@ -68,9 +96,15 @@ TMS9918::TMS9918(Personality p) {
 		"{"
 			"return texture(sampler, coordinate).rgb / vec3(255.0);"
 		"}");
-	crt_->set_output_device(Outputs::CRT::OutputDevice::Monitor);
+	crt_->set_video_signal(Outputs::CRT::VideoSignal::RGB);
 	crt_->set_visible_area(Outputs::CRT::Rect(0.055f, 0.025f, 0.9f, 0.9f));
 	crt_->set_input_gamma(2.8f);
+
+	// The TMS remains in-phase with the NTSC colour clock; this is an empirical measurement
+	// intended to produce the correct relationship between the hard edges between pixels and
+	// the colour clock. It was eyeballed rather than derived from any knowledge of the TMS
+	// colour burst generator because I've yet to find any.
+	crt_->set_immediate_default_phase(0.85f);
 }
 
 Outputs::CRT::CRT *TMS9918::get_crt() {
@@ -274,7 +308,8 @@ void TMS9918::run_for(const HalfCycles cycles) {
 						int row_base = pattern_name_address_;
 						int pattern_base = pattern_generator_table_address_;
 						int colour_base = colour_table_address_;
-						if(screen_mode_ == 1) {
+						if(screen_mode_ == ScreenMode::Graphics) {
+							// If this is high resolution mode, allow the row number to affect the pattern and colour addresses.
 							pattern_base &= 0x2000 | ((row_ & 0xc0) << 5);
 							colour_base &= 0x2000 | ((row_ & 0xc0) << 5);
 						}
@@ -285,7 +320,7 @@ void TMS9918::run_for(const HalfCycles cycles) {
 						const int pattern_names_end = (end - 27 + 3) >> 2;
 						std::memcpy(&pattern_names_[pattern_names_start], &ram_[row_base + pattern_names_start], static_cast<size_t>(pattern_names_end - pattern_names_start));
 
-						// Colours are collected ever fourth window starting from window 29.
+						// Colours are collected every fourth window starting from window 29.
 						const int colours_start = (access_pointer_ - 29 + 3) >> 2;
 						const int colours_end = (end - 29 + 3) >> 2;
 						if(screen_mode_ != 1) {
@@ -301,8 +336,11 @@ void TMS9918::run_for(const HalfCycles cycles) {
 						// Patterns are collected ever fourth window starting from window 30.
 						const int pattern_buffer_start = (access_pointer_ - 30 + 3) >> 2;
 						const int pattern_buffer_end = (end - 30 + 3) >> 2;
+
+						// Multicolour mode uss a different function of row to pick bytes
+						const int row = (screen_mode_ != 2) ? (row_ & 7) : ((row_ >> 2) & 7);
 						for(int column = pattern_buffer_start; column < pattern_buffer_end; ++column) {
-							pattern_buffer_[column] = ram_[pattern_base + (pattern_names_[column] << 3) + (row_ & 7)];
+							pattern_buffer_[column] = ram_[pattern_base + (pattern_names_[column] << 3) + row];
 						}
 
 						// Sprite slots occur in three quarters of ever fourth window starting from window 28.
@@ -380,21 +418,21 @@ void TMS9918::run_for(const HalfCycles cycles) {
 
 							const int shift = (output_column_ - first_pixel_column_) % 6;
 							int byte_column = (output_column_ - first_pixel_column_) / 6;
-							int pattern = pattern_buffer_[byte_column] << shift;
+							int pattern = reverse_table.map[pattern_buffer_[byte_column]] >> shift;
 							int pixels_left = pixels_end - output_column_;
 							int length = std::min(pixels_left, 6 - shift);
 							while(true) {
 								pixels_left -= length;
-								while(length--) {
-									*pixel_target_ = colours[(pattern >> 7)&0x01];
-									pixel_target_++;
-									pattern <<= 1;
+								for(int c = 0; c < length; ++c) {
+									pixel_target_[c] = colours[pattern&0x01];
+									pattern >>= 1;
 								}
+								pixel_target_ += length;
 
 								if(!pixels_left) break;
 								length = std::min(6, pixels_left);
 								byte_column++;
-								pattern = pattern_buffer_[byte_column];
+								pattern = reverse_table.map[pattern_buffer_[byte_column]];
 							}
 							output_column_ = pixels_end;
 						} break;
@@ -402,7 +440,7 @@ void TMS9918::run_for(const HalfCycles cycles) {
 						case LineMode::Character: {
 							// If this is the start of the visible area, seed sprite shifter positions.
 							SpriteSet &sprite_set = sprite_sets_[active_sprite_set_ ^ 1];
-							if(line_mode_ == LineMode::Character && output_column_ == first_pixel_column_) {
+							if(output_column_ == first_pixel_column_) {
 								int c = sprite_set.active_sprite_slot;
 								while(c--) {
 									SpriteSet::ActiveSprite &sprite = sprite_set.active_sprites[c];
@@ -416,36 +454,46 @@ void TMS9918::run_for(const HalfCycles cycles) {
 							}
 
 							// Paint the background tiles.
-							const int shift = (output_column_ - first_pixel_column_) & 7;
-							int byte_column = (output_column_ - first_pixel_column_) >> 3;
-
 							const int pixels_left = pixels_end - output_column_;
-							int length = std::min(pixels_left, 8 - shift);
-
-							int pattern = pattern_buffer_[byte_column] << shift;
-							uint8_t colour = colour_buffer_[byte_column];
-							uint32_t colours[2] = {
-								palette[(colour & 15) ? (colour & 15) : background_colour_],
-								palette[(colour >> 4) ? (colour >> 4) : background_colour_]
-							};
-
-							int background_pixels_left = pixels_left;
-							while(true) {
-								background_pixels_left -= length;
-								while(length--) {
-									*pixel_target_ = colours[(pattern >> 7)&0x01];
-									pixel_target_++;
-									pattern <<= 1;
+							if(screen_mode_ == ScreenMode::MultiColour) {
+								int pixel_location = output_column_ - first_pixel_column_;
+								for(int c = 0; c < pixels_left; ++c) {
+									pixel_target_[c] = palette[
+										(pattern_buffer_[(pixel_location + c) >> 3] >> (((pixel_location + c) & 4)^4)) & 15
+									];
 								}
+								pixel_target_ += pixels_left;
+							} else {
+								const int shift = (output_column_ - first_pixel_column_) & 7;
+								int byte_column = (output_column_ - first_pixel_column_) >> 3;
 
-								if(!background_pixels_left) break;
-								length = std::min(8, background_pixels_left);
-								byte_column++;
+								int length = std::min(pixels_left, 8 - shift);
 
-								pattern = pattern_buffer_[byte_column];
-								colour = colour_buffer_[byte_column];
-								colours[0] = palette[(colour & 15) ? (colour & 15) : background_colour_];
-								colours[1] = palette[(colour >> 4) ? (colour >> 4) : background_colour_];
+								int pattern = reverse_table.map[pattern_buffer_[byte_column]] >> shift;
+								uint8_t colour = colour_buffer_[byte_column];
+								uint32_t colours[2] = {
+									palette[(colour & 15) ? (colour & 15) : background_colour_],
+									palette[(colour >> 4) ? (colour >> 4) : background_colour_]
+								};
+
+								int background_pixels_left = pixels_left;
+								while(true) {
+									background_pixels_left -= length;
+									for(int c = 0; c < length; ++c) {
+										pixel_target_[c] = colours[pattern&0x01];
+										pattern >>= 1;
+									}
+									pixel_target_ += length;
+
+									if(!background_pixels_left) break;
+									length = std::min(8, background_pixels_left);
+									byte_column++;
+
+									pattern = reverse_table.map[pattern_buffer_[byte_column]];
+									colour = colour_buffer_[byte_column];
+									colours[0] = palette[(colour & 15) ? (colour & 15) : background_colour_];
+									colours[1] = palette[(colour >> 4) ? (colour >> 4) : background_colour_];
+								}
 							}
 
 							// Paint sprites and check for collisions.
@@ -488,7 +536,8 @@ void TMS9918::run_for(const HalfCycles cycles) {
 					}
 
 					if(output_column_ == first_right_border_column_) {
-						crt_->output_data(static_cast<unsigned int>(first_right_border_column_ - first_pixel_column_) * 4, 4);
+						const unsigned int data_length = static_cast<unsigned int>(first_right_border_column_ - first_pixel_column_);
+						crt_->output_data(data_length * 4, data_length);
 						pixel_target_ = nullptr;
 					}
 				}
@@ -535,7 +584,7 @@ void TMS9918::run_for(const HalfCycles cycles) {
 			screen_mode_ = next_screen_mode_;
 			blank_screen_ = next_blank_screen_;
 			switch(screen_mode_) {
-				case 2:
+				case ScreenMode::Text:
 					line_mode_ = LineMode::Text;
 					first_pixel_column_ = 69;
 					first_right_border_column_ = 309;
@@ -589,7 +638,7 @@ void TMS9918::set_register(int address, uint8_t value) {
 			case 1:
 				next_blank_screen_ = !(low_write_ & 0x40);
 				generate_interrupts_ = !!(low_write_ & 0x20);
-				next_screen_mode_ = (next_screen_mode_ & 1) | ((low_write_ & 0x18) >> 3);
+				next_screen_mode_ = (next_screen_mode_ & 1) | ((low_write_ & 0x18) >> 2);
 				sprites_16x16_ = !!(low_write_ & 0x02);
 				sprites_magnified_ = !!(low_write_ & 0x01);
 

Components/9918/9918.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 25/11/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef TMS9918_hpp
@@ -56,7 +56,7 @@ class TMS9918: public TMS9918Base {
 
 		/*!
 			Runs the VCP for the number of cycles indicate; it is an implicit assumption of the code
-			that the input clock rate is 3579545 Hz — the NTSC colour clock rate.
+			that the input clock rate is 3579545 Hz, the NTSC colour clock rate.
 		*/
 		void run_for(const HalfCycles cycles);
 

Components/9918/Implementation/9918Base.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 14/12/2017.
-//  Copyright © 2017 Thomas Harte. All rights reserved.
+//  Copyright 2017 Thomas Harte. All rights reserved.
 //
 
 #ifndef TMS9918Base_hpp

Components/AY38910/AY38910.cpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 14/10/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #include "AY38910.hpp"
@@ -56,13 +56,18 @@ AY38910::AY38910(Concurrency::DeferringAsyncTaskQueue &task_queue) : task_queue_
 		}
 	}
 
+	set_sample_volume_range(0);
+}
+
+void AY38910::set_sample_volume_range(std::int16_t range) {
 	// set up volume lookup table
-	float max_volume = 8192;
-	float root_two = sqrtf(2.0f);
+	const float max_volume = static_cast<float>(range) / 3.0f;	// As there are three channels.
+	const float root_two = sqrtf(2.0f);
 	for(int v = 0; v < 16; v++) {
 		volumes_[v] = static_cast<int>(max_volume / powf(root_two, static_cast<float>(v ^ 0xf)));
 	}
 	volumes_[0] = 0;
+	evaluate_output_volume();
 }
 
 void AY38910::get_samples(std::size_t number_of_samples, int16_t *target) {
@@ -98,7 +103,7 @@ void AY38910::get_samples(std::size_t number_of_samples, int16_t *target) {
 			noise_shift_register_ >>= 1;
 		}
 
-		// ... and the envelope generator. Table based for pattern lookup, with a 'refill' step — a way of
+		// ... and the envelope generator. Table based for pattern lookup, with a 'refill' step: a way of
 		// implementing non-repeating patterns by locking them to table position 0x1f.
 		if(envelope_divider_) envelope_divider_--;
 		else {
@@ -125,7 +130,7 @@ void AY38910::evaluate_output_volume() {
 	// The output level for a channel is:
 	//	1 if neither tone nor noise is enabled;
 	//	0 if either tone or noise is enabled and its value is low.
-	// The tone/noise enable bits use inverse logic — 0 = on, 1 = off — permitting the OR logic below.
+	// The tone/noise enable bits use inverse logic; 0 = on, 1 = off; permitting the OR logic below.
 #define tone_level(c, tone_bit)		(tone_outputs_[c] | (output_registers_[7] >> tone_bit))
 #define noise_level(c, noise_bit)	(noise_output_ | (output_registers_[7] >> noise_bit))
 
@@ -156,6 +161,11 @@ void AY38910::evaluate_output_volume() {
 	);
 }
 
+bool AY38910::is_zero_level() {
+	// Confirm that the AY is trivially at the zero level if all three volume controls are set to fixed zero.
+	return output_registers_[0x8] == 0 && output_registers_[0x9] == 0 && output_registers_[0xa] == 0;
+}
+
 // MARK: - Register manipulation
 
 void AY38910::select_register(uint8_t r) {

Components/AY38910/AY38910.hpp

@@ -3,7 +3,7 @@
 //  Clock Signal
 //
 //  Created by Thomas Harte on 14/10/2016.
-//  Copyright © 2016 Thomas Harte. All rights reserved.
+//  Copyright 2016 Thomas Harte. All rights reserved.
 //
 
 #ifndef AY_3_8910_hpp
@@ -85,12 +85,14 @@ class AY38910: public ::Outputs::Speaker::SampleSource {
 
 		// to satisfy ::Outputs::Speaker (included via ::Outputs::Filter; not for public consumption
 		void get_samples(std::size_t number_of_samples, int16_t *target);
+		bool is_zero_level();
+		void set_sample_volume_range(std::int16_t range);
 
 	private:
 		Concurrency::DeferringAsyncTaskQueue &task_queue_;
 
 		int selected_register_ = 0;
-		uint8_t registers_[16];
+		uint8_t registers_[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 		uint8_t output_registers_[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 		uint8_t port_inputs_[2];