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46 lines
669 B
C++
46 lines
669 B
C++
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//
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// Keyboard.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 29/07/2021.
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// Copyright © 2021 Thomas Harte. All rights reserved.
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//
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#ifndef Keyboard_hpp
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#define Keyboard_hpp
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#include <cstdint>
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namespace Amiga {
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class Keyboard {
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public:
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enum Lines: uint8_t {
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Data = (1 << 0),
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Clock = (1 << 1),
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};
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uint8_t update(uint8_t);
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private:
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enum class ShiftState {
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Shifting,
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AwaitingHandshake,
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Idle,
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} shift_state_ = ShiftState::Idle;
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enum class State {
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Startup,
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} state_ = State::Startup;
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int bit_phase_ = 0;
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uint32_t shift_sequence_ = 0;
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int bits_remaining_ = 0;
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uint8_t lines_ = 0;
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};
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}
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#endif /* Keyboard_hpp */
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