Re: HP-71B KEYBOARD IS Lex file Message #4 Posted by Vassilis Prevelakis on 9 Mar 2004, 1:48 a.m., in response to message #3 by Jeff
You can use the LIFUTIL program from ftp://ftp.math.jyu.fi/pub/hpil/lifutil, which runs under MSDOS (or Windows 95/98/ME inside the DOS box).
Unfortunately, the swap file header in KEYBOARD.L71 is slightly different than the header expected by LIFUTIL
(sigh!). More information on LIF may be found in the MoHPC Article:
http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=24.
The following text from the www.series80.org web site may be useful. Read HP-71B where it talks about Series-80 computers.
Quote:
File types are extremely important to the Series-80 computers. If a file type is not the correct one, then the computer will not be able to use that file. We, therefore, need to make sure that LIFUTIL tranfers the files from the DOS directory to the Series-80 floppy with the file type intact. Since the PC does not maintain such information in the MSDOS directories, we must save the file type within the MSDOS file. LIFUTIL does that if we specify "Binary Image: DFS file type header (all types)" when we transfer the
file from the Series-80 floppy. This creates a 256 byte header at the beginning of the DOS file. The header is essentially the directory
entry in the Series-80 diskette. When we transfer the file back to the Series-80 floppy with LIFUTIL, we specify the "DFS to LIF file type preserved" option which extracts the header and uses it to construct the correct directory entry on the floppy.
All files are binary. If you have to use ftp to transfer them, be sure to specify the BINARY option.
**vp
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