mirror of
https://github.com/TomHarte/CLK.git
synced 2024-11-30 04:50:08 +00:00
46 lines
669 B
C++
46 lines
669 B
C++
//
|
|
// Keyboard.hpp
|
|
// Clock Signal
|
|
//
|
|
// Created by Thomas Harte on 29/07/2021.
|
|
// Copyright © 2021 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#ifndef Keyboard_hpp
|
|
#define Keyboard_hpp
|
|
|
|
#include <cstdint>
|
|
|
|
namespace Amiga {
|
|
|
|
class Keyboard {
|
|
public:
|
|
enum Lines: uint8_t {
|
|
Data = (1 << 0),
|
|
Clock = (1 << 1),
|
|
};
|
|
|
|
uint8_t update(uint8_t);
|
|
|
|
private:
|
|
enum class ShiftState {
|
|
Shifting,
|
|
AwaitingHandshake,
|
|
Idle,
|
|
} shift_state_ = ShiftState::Idle;
|
|
|
|
enum class State {
|
|
Startup,
|
|
} state_ = State::Startup;
|
|
|
|
int bit_phase_ = 0;
|
|
uint32_t shift_sequence_ = 0;
|
|
int bits_remaining_ = 0;
|
|
|
|
uint8_t lines_ = 0;
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* Keyboard_hpp */
|