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acorn_dsk: Added support for HADFS floppy images.

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This commit is contained in:
Nigel Barnes 2020-01-03 13:39:00 +00:00
parent cdd3c6bb01
commit ec751fc8c6
1 changed files with 10 additions and 0 deletions
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10
src/lib/formats/acorn_dsk.cpp
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@ -45,6 +45,11 @@ int acorn_ssd_format::find_size(io_generic *io, uint32_t form_factor)
if (memcmp(cat, "\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd", 4) == 0 && size == (uint64_t)compute_track_size(f) * f.track_count * f.head_count) if (memcmp(cat, "\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd", 4) == 0 && size == (uint64_t)compute_track_size(f) * f.track_count * f.head_count)
return i; return i;
// test for HADFS - test pattern at sector 70
io_generic_read(io, cat, 0x04610, 8);
if (memcmp(cat, "\x00\x28\x43\x29\x4a\x47\x48\x00", 4) == 0 && size == (uint64_t)compute_track_size(f) * f.track_count * f.head_count)
return i;
// read sector count from side 0 catalogue // read sector count from side 0 catalogue
io_generic_read(io, cat, 0x100, 8); io_generic_read(io, cat, 0x100, 8);
sectors0 = ((cat[6] & 3) << 8) + cat[7]; sectors0 = ((cat[6] & 3) << 8) + cat[7];
@ -170,6 +175,11 @@ int acorn_dsd_format::find_size(io_generic *io, uint32_t form_factor)
if (memcmp(cat, "\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd", 4) == 0 && size == (uint64_t)compute_track_size(f) * f.track_count * f.head_count) if (memcmp(cat, "\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd", 4) == 0 && size == (uint64_t)compute_track_size(f) * f.track_count * f.head_count)
return i; return i;
// test for HADFS - test pattern at sector 70
io_generic_read(io, cat, 0x08c10, 8);
if (memcmp(cat, "\x00\x28\x43\x29\x4a\x47\x48\x00", 4) == 0 && size == (uint64_t)compute_track_size(f) * f.track_count * f.head_count)
return i;
// read sector count from side 0 catalogue // read sector count from side 0 catalogue
io_generic_read(io, cat, 0x100, 8); io_generic_read(io, cat, 0x100, 8);
sectors0 = ((cat[6] & 3) << 8) + cat[7]; sectors0 = ((cat[6] & 3) << 8) + cat[7];