51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
// (C) 2022 by Folkert van Heusden
|
|
// Released under Apache License v2.0
|
|
#pragma once
|
|
|
|
#include <atomic>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#if defined(ESP32)
|
|
#include "esp32.h"
|
|
#endif
|
|
|
|
#define RL02_CSR 0174400 // control status register
|
|
#define RL02_BAR 0174402 // bus address register
|
|
#define RL02_DAR 0174404 // disk address register
|
|
#define RL02_MPR 0174406 // multi purpose register
|
|
#define RL02_BASE RL02_CSR
|
|
#define RL02_END (RL02_MPR + 2)
|
|
|
|
class bus;
|
|
|
|
class rl02
|
|
{
|
|
private:
|
|
bus *const b;
|
|
uint16_t registers[4];
|
|
uint8_t xfer_buffer[512];
|
|
|
|
#if defined(ESP32)
|
|
std::vector<File32 *> fhs;
|
|
#else
|
|
std::vector<FILE *> fhs;
|
|
#endif
|
|
|
|
std::atomic_bool *const disk_read_acitivity { nullptr };
|
|
std::atomic_bool *const disk_write_acitivity { nullptr };
|
|
|
|
uint32_t calcOffset(uint16_t);
|
|
|
|
public:
|
|
rl02(const std::vector<std::string> & files, bus *const b, std::atomic_bool *const disk_read_acitivity, std::atomic_bool *const disk_write_acitivity);
|
|
virtual ~rl02();
|
|
|
|
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, const uint16_t v);
|
|
};
|