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
|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*********************************************************************
formats/naslite_dsk.c
NASLite 1.72MB with funky interleaving format
*********************************************************************/
#include <assert.h>
#include "formats/naslite_dsk.h"
naslite_format::naslite_format() : upd765_format(formats)
{
}
const char *naslite_format::name() const
{
return "NASLite";
}
const char *naslite_format::description() const
{
return "NASLite disk image";
}
const char *naslite_format::extensions() const
{
return "img";
}
const naslite_format::format naslite_format::formats[] = {
{
floppy_image::FF_35, floppy_image::DSHD, floppy_image::MFM,
1000, 21, 82, 2, 512, {}, -1, { 0x01, 0x0c, 0x02, 0x0d, 0x03, 0x0e, 0x04, 0x0f, 0x05, 0x10, 0x06, 0x11, 0x07, 0x12, 0x08, 0x13, 0x09, 0x14, 0x0a, 0x15, 0x0b }, 80, 50, 22, 0xc
},
{}
};
void naslite_format::build_sector_description(const format &f, UINT8 *sectdata, desc_s *sectors, int track, int head) const
{
for(int i=0; i<f.sector_count; i++) {
int cur_offset = 0;
for(int j=0; j<f.sector_count; j++)
if(f.per_sector_id[j] < f.per_sector_id[i])
cur_offset += f.sector_base_size ? f.sector_base_size : f.per_sector_size[j];
sectors[i].data = sectdata + cur_offset;
sectors[i].size = f.sector_base_size ? f.sector_base_size : f.per_sector_size[i];
sectors[i].sector_id = f.per_sector_id[(i + (track * 0x0a) + (head * 0x11)) % f.sector_count];
}
}
const floppy_format_type FLOPPY_NASLITE_FORMAT = &floppy_image_format_creator<naslite_format>;
|