1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
// license:BSD-3-Clause
// copyright-holders:Michael Zapf
/*********************************************************************
formats/hxchfe_dsk.h
HxC Floppy Emulator HFE file format
*********************************************************************/
#ifndef MAME_FORMATS_HXCHFE_DSK_H
#define MAME_FORMATS_HXCHFE_DSK_H
#pragma once
#include "flopimg.h"
class hfe_format : public floppy_image_format_t
{
public:
enum encoding_t
{
ISOIBM_MFM_ENCODING = 0x00,
AMIGA_MFM_ENCODING,
ISOIBM_FM_ENCODING,
EMU_FM_ENCODING,
UNKNOWN_ENCODING = 0xff
};
enum floppymode_t
{
IBMPC_DD_FLOPPYMODE = 00,
IBMPC_HD_FLOPPYMODE,
ATARIST_DD_FLOPPYMODE,
ATARIST_HD_FLOPPYMODE,
AMIGA_DD_FLOPPYMODE,
AMIGA_HD_FLOPPYMODE,
CPC_DD_FLOPPYMODE,
GENERIC_SHUGART_DD_FLOPPYMODE,
IBMPC_ED_FLOPPYMODE,
MSX2_DD_FLOPPYMODE,
C64_DD_FLOPPYMODE,
EMU_SHUGART_FLOPPYMODE,
S950_DD_FLOPPYMODE,
S950_HD_FLOPPYMODE,
DISABLE_FLOPPYMODE = 0xfe
};
hfe_format();
virtual int identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants) const override;
virtual bool load(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image) const override;
virtual const char *name() const override;
virtual const char *description() const override;
virtual const char *extensions() const override;
virtual bool supports_save() const override;
private:
static void generate_track_from_hfe_bitstream(int track, int head, int samplelength, const uint8_t *trackbuf, int track_end, floppy_image *image);
// Header fields from the HFE format
struct header_info {
int m_cylinders = 0; // Number of track in the file
int m_heads = 0; // Number of valid side
encoding_t m_track_encoding = UNKNOWN_ENCODING; // Track Encoding mode
int m_bit_rate = 0; // Bitrate in Kbit/s (max: 500)
int m_floppy_rpm = 0; // Rotation per minute
floppymode_t m_interface_mode = DISABLE_FLOPPYMODE; // Floppy interface mode.
bool m_write_allowed = true;
bool m_single_step = true;
bool m_track0s0_has_altencoding = false;
encoding_t m_track0s0_encoding = UNKNOWN_ENCODING; // alternate track_encoding for track 0 Side 0
bool m_track0s1_has_altencoding = false;
encoding_t m_track0s1_encoding = UNKNOWN_ENCODING; // alternate track_encoding for track 0 Side 1
int m_cyl_offset[256];
int m_cyl_length[256];
floppymode_t m_selected_mode = DISABLE_FLOPPYMODE;
encoding_t m_selected_encoding = UNKNOWN_ENCODING;
};
static void set_floppy_mode(header_info &info, floppymode_t mode) { info.m_selected_mode = mode; }
static void set_encoding(header_info &info, encoding_t enc) { info.m_selected_encoding = enc; }
};
extern const hfe_format FLOPPY_HFE_FORMAT;
#endif // MAME_FORMATS_HXCHFE_DSK_H
|