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ap2_dsk.cpp: avoid one type of .woz corruption (nw)

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Peter Ferrie 2018-07-29 21:52:11 -07:00
parent 73d069c1cf
commit 83c4aa9f1e
1 changed files with 2 additions and 0 deletions
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src/lib/formats/ap2_dsk.cpp
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@ -1716,6 +1716,8 @@ bool a2_woz_format::load(io_generic *io, uint32_t form_factor, floppy_image *ima
uint8_t idx = r8(img, off_tmap + trkid); uint8_t idx = r8(img, off_tmap + trkid);
if(idx != 0xff) { if(idx != 0xff) {
uint32_t boff = off_trks + 6656*idx; uint32_t boff = off_trks + 6656*idx;
if (r16(img, boff + 6648) == 0)
return false;
generate_track_from_bitstream(track, head, &img[boff], r16(img, boff + 6648), image, subtrack, r16(img, boff + 6650)); generate_track_from_bitstream(track, head, &img[boff], r16(img, boff + 6648), image, subtrack, r16(img, boff + 6650));
} }
} }