SDATA Manual Page
sdata - a filter to interpret HP sdata files
sdata [-n] [-r] [-b] [-f] [-l] < Input file > Output file
sdata is a filter which displays the contents of an HP sdata
file (also known as an HP41C data file) in a human-readable
format. An sdata file consists of a sequence of 8-byte
records each of which represents an HP41 storage register
containing either a real number or a 6-character text
string. The sdata file is read from standard input and the
output written to standard output.
By default, sdata displays numbers with a 10 digit mantissa
and strings as a sequence of characters surrounded by double
quotes. See OPTIONS below for other output formats.
Characters in text strings that are printable ASCII
characters are output as such, non-printable characters are
output as \nnn octal escape sequences.
-n Print the register number at the start of each output
-r Print the register contents as 8 2-digit hexadecimal
numbers without attempting to interpret them
-b Print alpha strings as the sequence of BLDSPEC (an HP41
printer command) values needed to create them.
-f If appropriate, display alpha strings as the settings
of the first 44 HP41 flags. The string is assumed to
have been returned by the RCLFLAG command (an extended
-l Display 12 digits in the mantissa, not 10, as used on
-? Print a message giving the program usage to standard
The sdata file format is documented in sections 184.108.40.206 and
11.2.7 of the HP71 Software Internal Design Specifications
Volume More information can be found in the routines RED41C
(0x13F28) and N-STR (0x14BFC) in the HP71 Software Internal
Design Specifications Volume (Addresses given are for the
1BBBB version of the ROM).
If disk1.lif is a LIF disk image containing an sdata file
called DATA1 then
lifget -f disk1.lif DATA1 | sdata
will produce a register-numbered listing of the data in that
file to standard output
The -f flags function has not been fully tested. This
program may not display non-normalised numbers correctly.
Some commonly-used HP41C characters are non-printable in
ASCII, and thus the display of normal HP41C alpha strings
may look messy
sdata was written by Tony Duell, firstname.lastname@example.org and
has been placed under the GNU Public License version 2.0