68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
// (C) 2018-2024 by Folkert van Heusden
|
|
// Released under MIT license
|
|
|
|
#pragma once
|
|
|
|
#include <atomic>
|
|
#include <mutex>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <string>
|
|
#include <thread>
|
|
#include <vector>
|
|
|
|
#include "bus.h"
|
|
#include "console.h"
|
|
#include "gen.h"
|
|
|
|
|
|
#define PDP11TTY_TKS 0177560 // reader status
|
|
#define PDP11TTY_TKB 0177562 // reader buffer
|
|
#define PDP11TTY_TPS 0177564 // puncher status
|
|
#define PDP11TTY_TPB 0177566 // puncher buffer
|
|
#define PDP11TTY_BASE PDP11TTY_TKS
|
|
#define PDP11TTY_END (PDP11TTY_TPB + 2)
|
|
|
|
class memory;
|
|
|
|
class tty
|
|
{
|
|
private:
|
|
console *const c { nullptr };
|
|
bus *const b { nullptr };
|
|
|
|
#if defined(BUILD_FOR_RP2040)
|
|
SemaphoreHandle_t chars_lock { xSemaphoreCreateBinary() };
|
|
#else
|
|
std::mutex chars_lock;
|
|
#endif
|
|
std::vector<char> chars;
|
|
|
|
uint16_t registers[4] { 0 };
|
|
|
|
#if !defined(BUILD_FOR_RP2040)
|
|
std::thread *th { nullptr };
|
|
#endif
|
|
std::atomic_bool stop_flag { false };
|
|
|
|
void notify_rx();
|
|
|
|
public:
|
|
tty(console *const c, bus *const b);
|
|
virtual ~tty();
|
|
|
|
#if IS_POSIX
|
|
json_t *serialize();
|
|
static tty *deserialize(const json_t *const j, bus *const b, console *const cnsl);
|
|
#endif
|
|
|
|
void reset();
|
|
|
|
uint8_t readByte(const uint16_t addr);
|
|
uint16_t readWord(const uint16_t addr);
|
|
|
|
void writeByte(const uint16_t addr, const uint8_t v);
|
|
void writeWord(const uint16_t addr, uint16_t v);
|
|
|
|
void operator()();
|
|
};
|