Re: Low level diskette I/O in Swiftforth

> I have a corrupt 3.5" single density diskette.
> I wish to retrieve as much data as possible from it.
> I have enough prior knowledge of contents that reading individual
> sectors would be useful.
> Is there anyway in SwiftForth to do reads of specific sectors?

There has been several replies to this post, but so far no-one has
answer the question. ;-)

YES, it is possible to read specific sectors in SwiftForth. The
easiest way is to read the whole disk at once, with code similar to
this:

1440 1024 * CONSTANT SIZE
SIZE BUFFER: DATA
S" \\.\A:" R/O OPEN-FILE THROW
( fid ) DATA SIZE THIRD READ-FILE THROW SIZE <> THROW
( fid ) CLOSE-FILE THROW

After it runs, you will have the contents of a high-density flopply
in A: stored at DATA.

According to the documentation, you need Windows NT and you must
have administrative privileges.

Regards,
Federico de Ceballos

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Received on Mon Feb 14 2005 - 01:21:09 PST