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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*********************************************************************
formats/abc800_dsk.c
Luxor ABC 830/832/834/838 disk image formats
*********************************************************************/
#include "formats/abc800_dsk.h"
abc800_format::abc800_format() : wd177x_format(formats)
{
}
const char *abc800_format::name() const
{
return "abc800";
}
const char *abc800_format::description() const
{
return "Luxor ABC 830/832/834/838 disk image";
}
const char *abc800_format::extensions() const
{
return "dsk";
}
const abc800_format::format abc800_format::formats[] = {
// track description
// 28xff 6x00 fe 2x00 01 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 02 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 03 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 04 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 05 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 06 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 07 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 08 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 09 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 0a 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 0b 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 0c 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 0d 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 0e 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 0f 00 f7 11xff 6x00 fb 128xe5 f7
// 27xff 6x00 fe 2x00 10 00 f7 11xff 6x00 fb 128xe5 f7
// 117xff
{ // 80K 5 1/4 inch single density single sided
floppy_image::FF_525, floppy_image::SSSD, floppy_image::FM,
4000, 16, 40, 1, 128, {}, -1, { 1,2,11,12,5,6,15,16,9,10,pre { line-height: 125%; }
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// copyright-holders:Olivier Galibert
/*********************************************************************
formats/dsk_dsk.c
DSK disk images
*********************************************************************/
#include "dsk_dsk.h"
#include "flopimg_legacy.h"
#include "imageutl.h"
#include "ioprocs.h"
#include <cstring>
#define MV_CPC "MV - CPC"
#define EXTENDED "EXTENDED"
struct dskdsk_tag
{
int disk_image_type; /* image type: standard or extended */
int heads;
int tracks;
int sector_size;
uint64_t track_offsets[84*2]; /* offset within data for each track */
};
static struct dskdsk_tag *get_tag(floppy_image_legacy *floppy)
{
struct dskdsk_tag *tag;
tag = (dskdsk_tag *)floppy_tag(floppy);
return tag;
}
FLOPPY_IDENTIFY( dsk_dsk_identify )
{
uint8_t header[8];
floppy_image_read(floppy, header, 0, 8);
if ( memcmp( header, MV_CPC, 8 ) ==0) {
*vote = 100;
} else
if ( memcmp( header, EXTENDED, 8 ) ==0) {
*vote = 100;
} else {
*vote = 0;
}
return FLOPPY_ERROR_SUCCESS;
}
static int dsk_get_heads_per_disk(floppy_image_legacy *floppy)
{
return get_tag(floppy)->heads;
}
static int dsk_get_tracks_per_disk(floppy_image_legacy *floppy)
{
return get_tag(floppy)->tracks;
}
static uint64_t dsk_get_track_offset(floppy_image_legacy *floppy, int head, int track)
{
return get_tag(floppy)->track_offsets[(track<<1) + head];
}
static floperr_t get_offset(floppy_image_legacy *floppy, int head, int track, int sector, bool sector_is_index, uint64_t *offset)
{
uint64_t offs;
uint64_t track_offset;
uint8_t track_info[0x100];
uint8_t sectors_per_track;
int i;
/* translate the sector to a raw sector */
/* check to see if we are out of range */
if ((head < 0) || (head >= get_tag(floppy)->heads) || (track < 0) || (track >= get_tag(floppy)->tracks)
|| (sector < 0) )
return FLOPPY_ERROR_SEEKERROR;
track_offset = dsk_get_track_offset(floppy, head, track);
floppy_image_read(floppy, track_info, track_offset, 0x100);
sectors_per_track = track_info[0x015];
if (!sector_is_index) {
if (sector >= sectors_per_track) {
return FLOPPY_ERROR_SEEKERROR;
}
}
if (get_tag(floppy)->disk_image_type==0) {
get_tag(floppy)->sector_size = (1<<(track_info[0x014]+7));
offs = track_offset + 0x100 +sector * get_tag(floppy)->sector_size;
} else
|