Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-10-06 17:08:28 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

dsk_dsk.cpp: Surpass some copy-protected tracks

Browse Source 
Fix MT 06716
This commit is contained in:
AmatCoder 2019-07-06 10:17:27 +02:00
parent 85228e6f91
commit ab20a16990
1 changed files with 25 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
src/lib/formats/dsk_dsk.cpp
View File

@ -424,10 +424,27 @@ bool dsk_format::load(io_generic *io, uint32_t form_factor, floppy_image *image)
if (tr.number_of_sector == 0) if (tr.number_of_sector == 0)
continue; continue;
int protection = 0;
int first_sector_code = -1;
for(int j=0;j<tr.number_of_sector;j++) {
sector_header sector;
io_generic_read(io, &sector,track_offsets[(track<<1)+side]+sizeof(tr)+(sizeof(sector)*j),sizeof(sector));
if (j == 0)
first_sector_code = sector.sector_size_code;
if ((j > 0) && (sector.sector_size_code == 2) && (first_sector_code == 6))
protection = 1; // first: 6144 rest: 512
if ((j > 0) && (sector.sector_size_code == j) && (first_sector_code == 0))
protection = 2; // first: 128 rest: N*128
}
desc_pc_sector sects[256]; desc_pc_sector sects[256];
uint8_t sect_data[65536]; uint8_t sect_data[65536];
int sdatapos = 0; int sdatapos = 0;
int pos = track_offsets[(track<<1)+side] + 0x100; int pos = track_offsets[(track<<1)+side] + 0x100;
for(int j=0;j<tr.number_of_sector;j++) { for(int j=0;j<tr.number_of_sector;j++) {
sector_header sector; sector_header sector;
io_generic_read(io, &sector,track_offsets[(track<<1)+side]+sizeof(tr)+(sizeof(sector)*j),sizeof(sector)); io_generic_read(io, &sector,track_offsets[(track<<1)+side]+sizeof(tr)+(sizeof(sector)*j),sizeof(sector));
@ -437,7 +454,14 @@ bool dsk_format::load(io_generic *io, uint32_t form_factor, floppy_image *image)
sects[j].sector = sector.sector_id; sects[j].sector = sector.sector_id;
sects[j].size = sector.sector_size_code; sects[j].size = sector.sector_size_code;
if(extendformat) if(extendformat)
{
if (protection == 1)
sects[j].actual_size = 512;
else if (protection == 2)
sects[j].actual_size = 128;
else
sects[j].actual_size = sector.data_length; sects[j].actual_size = sector.data_length;
}
else else
sects[j].actual_size = 128 << tr.sector_size_code; sects[j].actual_size = 128 << tr.sector_size_code;