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flopimg: Fix wrapping on mac sector extraction

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This commit is contained in:
Olivier Galibert 2021-01-31 19:13:31 +01:00
parent 4790fcba21
commit 9bb34aec20
1 changed files with 8 additions and 2 deletions
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10
src/lib/formats/flopimg.cpp
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@ -2986,8 +2986,14 @@ std::vector<std::vector<uint8_t>> floppy_image_format_t::extract_sectors_from_tr
auto &sdata = sector_data[se];
uint8_t ca = 0, cb = 0, cc = 0;
uint32_t hstate = (nib[pos] << 8) | nib[pos + 1];
pos += 2;
uint32_t hstate = (nib[pos] << 8);
pos ++;
if(pos == nib.size())
pos = 0;
hstate |= nib[pos];
pos ++;
if(pos == nib.size())
pos = 0;
for(;;) {
hstate = ((hstate << 8) | nib[pos]) & 0xffffff;
pos ++;