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80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
//
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// Atari2600.hpp
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// CLK
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//
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// Created by Thomas Harte on 14/07/2015.
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// Copyright © 2015 Thomas Harte. All rights reserved.
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//
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#ifndef Atari2600_cpp
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#define Atari2600_cpp
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#include <stdint.h>
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#include "../../Processors/6502/CPU6502.hpp"
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#include "../CRTMachine.hpp"
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#include "PIA.hpp"
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#include "Speaker.hpp"
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#include "TIA.hpp"
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#include "../ConfigurationTarget.hpp"
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#include "Atari2600Inputs.h"
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namespace Atari2600 {
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const unsigned int number_of_upcoming_events = 6;
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const unsigned int number_of_recorded_counters = 7;
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class Machine:
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public CPU6502::Processor<Machine>,
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public CRTMachine::Machine,
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public ConfigurationTarget::Machine {
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public:
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Machine();
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~Machine();
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void configure_as_target(const StaticAnalyser::Target &target);
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void switch_region();
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void set_digital_input(Atari2600DigitalInput input, bool state);
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void set_switch_is_enabled(Atari2600Switch input, bool state);
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// to satisfy CPU6502::Processor
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unsigned int perform_bus_operation(CPU6502::BusOperation operation, uint16_t address, uint8_t *value);
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void synchronise();
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// to satisfy CRTMachine::Machine
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virtual void setup_output(float aspect_ratio);
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virtual void close_output();
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virtual std::shared_ptr<Outputs::CRT::CRT> get_crt() { return tia_->get_crt(); }
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virtual std::shared_ptr<Outputs::Speaker> get_speaker() { return speaker_; }
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virtual void run_for_cycles(int number_of_cycles) { CPU6502::Processor<Machine>::run_for_cycles(number_of_cycles); }
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private:
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uint8_t *rom_, *rom_pages_[4];
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size_t rom_size_;
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// the RIOT and TIA
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PIA mos6532_;
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std::unique_ptr<TIA> tia_;
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// joystick state
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uint8_t tia_input_value_[2];
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// outputs
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std::shared_ptr<Speaker> speaker_;
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// speaker backlog accumlation counter
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unsigned int cycles_since_speaker_update_;
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void update_audio();
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// video backlog accumulation counter
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unsigned int cycles_since_video_update_;
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void update_video();
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};
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}
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#endif /* Atari2600_cpp */
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