1 // license:BSD-3-Clause
2 // copyright-holders:Sergey Svishchev
3 /*********************************************************************
4
5 formats/ppg_dsk.c
6
7 PPG Waveterm formats
8
9 *********************************************************************/
10
11 #include <cassert>
12
13 #include "formats/ppg_dsk.h"
14
ppg_format()15 ppg_format::ppg_format() : wd177x_format(formats)
16 {
17 }
18
name() const19 const char *ppg_format::name() const
20 {
21 return "ppg";
22 }
23
description() const24 const char *ppg_format::description() const
25 {
26 return "PPG Waveterm disk image";
27 }
28
extensions() const29 const char *ppg_format::extensions() const
30 {
31 return "wta";
32 }
33
34 const ppg_format::format ppg_format::formats[] = {
35 // .dsk formats used by flexemu. gaps unverified.
36 { floppy_image::FF_525, floppy_image::SSDD, floppy_image::MFM,
37 2000, 10, 35, 1, 256, {}, 1, {}, 32, 22, 31 },
38 { floppy_image::FF_525, floppy_image::SSDD, floppy_image::MFM,
39 2000, 10, 40, 1, 256, {}, 1, {}, 32, 22, 31 },
40 { floppy_image::FF_525, floppy_image::DSDD, floppy_image::MFM,
41 2000, 10, 35, 2, 256, {}, 1, {}, 32, 22, 31 },
42 { floppy_image::FF_525, floppy_image::DSDD, floppy_image::MFM,
43 2000, 10, 40, 2, 256, {}, 1, {}, 32, 22, 31 },
44 { floppy_image::FF_525, floppy_image::DSDD, floppy_image::MFM,
45 2000, 20, 35, 2, 256, {}, 1, {}, 32, 2, 2 },
46 { floppy_image::FF_525, floppy_image::DSDD, floppy_image::MFM,
47 2000, 20, 40, 2, 256, {}, 1, {}, 32, 2, 2 },
48
49 // .wta format used by PPG Waveterm A transfer software. gaps unverified.
50 { floppy_image::FF_525, floppy_image::DSDD, floppy_image::MFM,
51 2000, 16, 77, 2, 256, {}, 1, {}, 32, 22, 31 },
52 {}
53 };
54
build_sector_description(const format & f,uint8_t * sectdata,desc_s * sectors,int track,int head) const55 void ppg_format::build_sector_description(const format &f, uint8_t *sectdata, desc_s *sectors, int track, int head) const
56 {
57 int cur_offset = 0;
58
59 for (int i=0; i<f.sector_count; i++) {
60 sectors[i].data = sectdata + cur_offset;
61 sectors[i].size = f.sector_base_size ? f.sector_base_size : f.per_sector_size[i];
62 cur_offset += sectors[i].size;
63 sectors[i].sector_id = i + f.sector_base_id + (head * f.sector_count);
64 }
65 }
66
67 const floppy_format_type FLOPPY_PPG_FORMAT = &floppy_image_format_creator<ppg_format>;
68