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Correct overrun test.

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This commit is contained in:
Thomas Harte
2025-05-30 22:33:27 -04:00
parent 8b31cfeafb
commit 7c164453a5
1 changed files with 1 additions and 3 deletions
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Storage/Disk/DiskImage/Formats/JFD.cpp
+1 -3
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@@ -58,7 +58,6 @@ int JFD::head_count() const {
std::unique_ptr<Track> JFD::track_at_position(const Track::Address address) const {
const uint32_t offset = track_offset_ + uint32_t((address.head + address.position.as_int() * 2)) * sizeof(uint32_t);
// printf("!!! %d / %d -> %d\n", address.position.as_int(), address.head, offset - track_offset_);
if(offset >= sector_offset_) {
return nullptr;
@@ -73,7 +72,7 @@ std::unique_ptr<Track> JFD::track_at_position(const Track::Address address) cons
std::vector<Storage::Encodings::MFM::Sector> sectors;
uint32_t sector = sector_begin;
while(sector < sector_offset_) {
while(sector_offset_ + sector <= data_offset_ - 8) {
gzseek(file_, sector_offset_ + sector, SEEK_SET);
const auto crc_size = read8();
@@ -85,7 +84,6 @@ std::unique_ptr<Track> JFD::track_at_position(const Track::Address address) cons
}
const auto data = read32();
// printf("After %d ms, od %02x, sector %d, crc_size %02x, at %d\n", time_ms, options_density, sector_number, crc_size, data);
if(time_ms != 0xff) {
fprintf(stderr, "JFD unimplemented: sector time offsets\n");