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