fadden/CiderPress2

Not recognizing "Probable" files as embedded disk images

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fadden commented

The "Probable" (ProDOS-Bootable) project at github.com/a2-4am/probable stores a 140KB disk image in an 800KB ProDOS volume. It should be opened as a sub-image with a double-click in the GUI or via --depth=max, but currently isn't.

The HasDiskImageAttribs() function in FileIdentifier.cs is responsible for deciding if something might be a disk image, which it does narrowly, using a combination of file type and filename extension. Even if the extension is unknown, we should still recognize it as a disk if the size is exactly 143360 bytes, as that is very likely a 5.25" disk image. We also want to recognize $F1 is a possible disk image file type (we currently only accept BIN or NON).

@a2-4am