RASCSI/cpp/devices/disk_track.h
Uwe Seimet b7cb23e391
Add statistics and make scsictl accept generic key/value parameters (#1237/#1238) (#1262)
* Add statistics and make scsictl accept generic key/value parameters
2023-10-30 13:32:45 +01:00

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//---------------------------------------------------------------------------
//
// X68000 EMULATOR "XM6"
//
// Copyright (C) 2001-2006 (ytanaka@ipc-tokai.or.jp)
// Copyright (C) 2014-2020 GIMONS
//
// XM6i
// Copyright (C) 2010-2015 isaki@NetBSD.org
//
// Imported sava's Anex86/T98Next image and MO format support patch.
// Comments translated to english by akuker.
//
//---------------------------------------------------------------------------
#pragma once
#include <cstdlib>
#include <cstdint>
#include <span>
#include <vector>
#include <string>
using namespace std;
class DiskTrack
{
struct {
int track; // Track Number
int size; // Sector Size (8=256, 9=512, 10=1024, 11=2048, 12=4096)
int sectors; // Number of sectors(<0x100)
uint32_t length; // Data buffer length
uint8_t *buffer; // Data buffer
bool init; // Is it initilized?
bool changed; // Changed flag
vector<bool> changemap; // Changed map
bool raw; // RAW mode flag
off_t imgoffset; // Offset to actual data
} dt = {};
public:
DiskTrack() = default;
~DiskTrack();
DiskTrack(DiskTrack&) = delete;
DiskTrack& operator=(const DiskTrack&) = delete;
private:
friend class DiskCache;
void Init(int track, int size, int sectors, bool raw = false, off_t imgoff = 0);
bool Load(const string& path, uint64_t&);
bool Save(const string& path, uint64_t&);
bool ReadSector(span<uint8_t>, int) const; // Sector Read
bool WriteSector(span<const uint8_t> buf, int); // Sector Write
int GetTrack() const { return dt.track; } // Get track
};