52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
// (C) 2018-2024 by Folkert van Heusden
|
|
// Released under MIT license
|
|
|
|
#pragma once
|
|
|
|
#include <atomic>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "disk_backend.h"
|
|
|
|
|
|
#define RK05_DS 0177400 // drive status
|
|
#define RK05_ERROR 0177402 // error
|
|
#define RK05_CS 0177404 // control status
|
|
#define RK05_WC 0177406 // word count
|
|
#define RK05_BA 0177410 // bus address
|
|
#define RK05_DA 0177412 // disk address
|
|
#define RK05_DATABUF 0177414 // data buffer
|
|
#define RK05_BASE RK05_DS
|
|
#define RK05_END (RK05_DATABUF + 2)
|
|
|
|
class bus;
|
|
|
|
class rk05
|
|
{
|
|
private:
|
|
bus *const b { nullptr };
|
|
uint16_t registers [7] { 0 };
|
|
std::vector<disk_backend *> fhs;
|
|
uint8_t xfer_buffer[512] { 0 };
|
|
|
|
std::atomic_bool *const disk_read_acitivity { nullptr };
|
|
std::atomic_bool *const disk_write_acitivity { nullptr };
|
|
|
|
uint32_t get_bus_address() const;
|
|
void update_bus_address(const uint16_t v);
|
|
|
|
public:
|
|
rk05(const std::vector<disk_backend *> & files, bus *const b, std::atomic_bool *const disk_read_acitivity, std::atomic_bool *const disk_write_acitivity);
|
|
virtual ~rk05();
|
|
|
|
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);
|
|
};
|