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Forgot the comment (nw)

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This commit is contained in:
Olivier Galibert 2018-05-26 22:39:50 +02:00
parent de919271fe
commit 83a3b78fb3
1 changed files with 4 additions and 0 deletions
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4
src/lib/formats/flopimg.cpp
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@ -1684,6 +1684,10 @@ void floppy_image_format_t::generate_track_from_bitstream(int track, int head, c
std::vector<uint32_t> &dest = image->get_buffer(track, head, subtrack); std::vector<uint32_t> &dest = image->get_buffer(track, head, subtrack);
dest.clear(); dest.clear();
// If the bitstream has an odd number of inversions, one needs to be added.
// Put in in the middle of the half window after the center inversion, where
// any fdc ignores it.
int inversions = 0; int inversions = 0;
for(int i=0; i != track_size; i++) for(int i=0; i != track_size; i++)
if(trackbuf[i >> 3] & (0x80 >> (i & 7))) if(trackbuf[i >> 3] & (0x80 >> (i & 7)))