48 lines
1 KiB
C++
48 lines
1 KiB
C++
// (C) 2018-2023 by Folkert van Heusden
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// Released under Apache License v2.0
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#pragma once
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#include <atomic>
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#include <mutex>
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#include <stdint.h>
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#include <stdio.h>
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#include <string>
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#include <thread>
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#include <vector>
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#include "bus.h"
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#include "console.h"
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#define PDP11TTY_TKS 0177560 // reader status
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#define PDP11TTY_TKB 0177562 // reader buffer
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#define PDP11TTY_TPS 0177564 // puncher status
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#define PDP11TTY_TPB 0177566 // puncher buffer
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#define PDP11TTY_BASE PDP11TTY_TKS
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#define PDP11TTY_END (PDP11TTY_TPB + 2)
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class memory;
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class tty
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{
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private:
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console *const c { nullptr };
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bus *const b { nullptr };
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std::mutex chars_lock;
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std::vector<char> chars;
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uint16_t registers[4] { 0 };
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std::thread *th { nullptr };
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std::atomic_bool stop_flag { false };
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public:
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tty(console *const c, bus *const b);
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virtual ~tty();
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uint8_t readByte(const uint16_t addr);
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uint16_t readWord(const uint16_t addr);
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void writeByte(const uint16_t addr, const uint8_t v);
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void writeWord(const uint16_t addr, uint16_t v);
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void operator()();
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};
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