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This commit is contained in:
Thomas Harte 2024-12-07 09:32:45 -06:00
parent 590bd934c0
commit a128247ef5
1 changed files with 3 additions and 3 deletions
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6
Storage/Disk/DiskImage/Formats/D64.cpp
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@ -19,15 +19,15 @@ using namespace Storage::Disk;
D64::D64(const std::string &file_name) :
file_(file_name) {
// in D64, this is it for validation without imposing potential false-negative tests: check that
// In D64, this is it for validation without imposing potential false-negative tests: check that
// the file size appears to be correct. Stone-age stuff.
if(file_.stats().st_size != 174848 && file_.stats().st_size != 196608)
throw Error::InvalidFormat;
number_of_tracks_ = (file_.stats().st_size == 174848) ? 35 : 40;
// then, ostensibly, this is a valid file. Hmmm. Pick a disk ID as a function of the file_name,
// being the most stable thing available
// Then, ostensibly, this is a valid file. Pick a disk ID as a
// function of the file_name, being the most stable thing available.
disk_id_ = 0;
for(const auto &character: file_name) {
disk_id_ ^= character;