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102 lines
2.8 KiB
C++
102 lines
2.8 KiB
C++
//
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// ZX8081.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 04/06/2017.
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// Copyright © 2017 Thomas Harte. All rights reserved.
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//
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#ifndef ZX8081_hpp
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#define ZX8081_hpp
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#include "../ConfigurationTarget.hpp"
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#include "../CRTMachine.hpp"
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#include "../../Processors/Z80/Z80.hpp"
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#include "../../Storage/Tape/Tape.hpp"
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#include "../../Storage/Tape/Parsers/ZX8081.hpp"
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#include "Video.hpp"
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#include <cstdint>
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#include <vector>
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namespace ZX8081 {
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enum ROMType: uint8_t {
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ZX80, ZX81
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};
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enum Key: uint16_t {
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KeyShift = 0x0000 | 0x01, KeyZ = 0x0000 | 0x02, KeyX = 0x0000 | 0x04, KeyC = 0x0000 | 0x08, KeyV = 0x0000 | 0x10,
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KeyA = 0x0100 | 0x01, KeyS = 0x0100 | 0x02, KeyD = 0x0100 | 0x04, KeyF = 0x0100 | 0x08, KeyG = 0x0100 | 0x10,
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KeyQ = 0x0200 | 0x01, KeyW = 0x0200 | 0x02, KeyE = 0x0200 | 0x04, KeyR = 0x0200 | 0x08, KeyT = 0x0200 | 0x10,
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Key1 = 0x0300 | 0x01, Key2 = 0x0300 | 0x02, Key3 = 0x0300 | 0x04, Key4 = 0x0300 | 0x08, Key5 = 0x0300 | 0x10,
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Key0 = 0x0400 | 0x01, Key9 = 0x0400 | 0x02, Key8 = 0x0400 | 0x04, Key7 = 0x0400 | 0x08, Key6 = 0x0400 | 0x10,
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KeyP = 0x0500 | 0x01, KeyO = 0x0500 | 0x02, KeyI = 0x0500 | 0x04, KeyU = 0x0500 | 0x08, KeyY = 0x0500 | 0x10,
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KeyEnter = 0x0600 | 0x01, KeyL = 0x0600 | 0x02, KeyK = 0x0600 | 0x04, KeyJ = 0x0600 | 0x08, KeyH = 0x0600 | 0x10,
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KeySpace = 0x0700 | 0x01, KeyDot = 0x0700 | 0x02, KeyM = 0x0700 | 0x04, KeyN = 0x0700 | 0x08, KeyB = 0x0700 | 0x10,
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};
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class Machine:
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public CPU::Z80::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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int perform_machine_cycle(const CPU::Z80::PartialMachineCycle &cycle);
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void flush();
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void setup_output(float aspect_ratio);
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void close_output();
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std::shared_ptr<Outputs::CRT::CRT> get_crt();
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std::shared_ptr<Outputs::Speaker> get_speaker();
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void run_for_cycles(int number_of_cycles);
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void configure_as_target(const StaticAnalyser::Target &target);
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void set_rom(ROMType type, std::vector<uint8_t> data);
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void set_key_state(uint16_t key, bool isPressed);
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void clear_all_keys();
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inline void set_use_fast_tape_hack(bool activate) { use_fast_tape_hack_ = activate; }
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private:
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std::shared_ptr<Video> video_;
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std::vector<uint8_t> zx81_rom_, zx80_rom_;
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uint16_t tape_trap_address_, tape_return_address_;
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std::vector<uint8_t> ram_;
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uint16_t ram_mask_, ram_base_;
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std::vector<uint8_t> rom_;
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uint16_t rom_mask_;
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bool vsync_, hsync_;
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int line_counter_;
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uint8_t key_states_[8];
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void set_vsync(bool sync);
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void set_hsync(bool sync);
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void update_sync();
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Storage::Tape::BinaryTapePlayer tape_player_;
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Storage::Tape::ZX8081::Parser parser_;
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int horizontal_counter_;
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bool is_zx81_;
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bool nmi_is_enabled_;
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int vsync_start_cycle_, vsync_end_cycle_;
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uint8_t latched_video_byte_;
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bool use_fast_tape_hack_;
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};
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}
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#endif /* ZX8081_hpp */
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