Uitlity Programs
Files
| File | Description |
|---|---|
| sds_9pal | Extract file or list contents of an SDS Pal Library 9 track tape. |
| sds_nm | List external defs from SDS Standard Binary Object files. |
| sds_bindmp | Dump SDS Standard Binary Object file to stdout. |
| sds_listtape | List contents of simh mag tape. |
| sds_libsplt | Split a Fortran library file composed of binary object files |
| sds_libmk | Create a Fortran Library file from files in the current directory. |
| mkdeck | Convert file from ascii to Hollerith format. |
Usage
sds_9pal - Extract file or list contents of an SDS Pal Library 9 track tape.
Usage: sds_pal -l | -x nnnn-tt tapefile outfile [>stdout]
-l : List all catalog numbers
-x nnnnn-tt : Extract catalog number nnnnn element type tt
Extracted files will be unpacked and written to outfile.
Type 84 files contain column binary images in standard binary format,
sometimes prefaced by an absolute binary loader.
Type 34 files contain Hollerith encoded data. The unpacked
Hollerith images will be written to outfile and also to stdout as
ASCII characters.
Type 44 files contain compressed program data that can be uncompressed
by the 'recon' program (850647). Sometimes the compressed data may be
preceeded by control card which can cause an error during uncompression.
The PAL library tape file is in simh Magnetic Tape format copied from
a 9 track SDS tape. Thanks to Al Kassow of the CHM and bitsavers.org
for doing that.
The tape contains label files composed of EBCDIC characters, (the
tapes were made on a Sigma 7) and program data files containing packed
6bit data, such that threee 8bit bytes contain four 6bit characters,
or one 24bit 9 Series word.
There is one :LBL file at the beginning of the tape with the tape's
PAL identifier. Following the :LBL are program files,
preceeded by :BOF labels containing the PAL program catalog number
to identify the data file.
Program files consist of multiple blocks,
usually of 2048 bytes. Program files are organized as follows:
number of records
record sequence number within file
length of record data to follow, usually 160 bytes, but
some times less if the record spans blocks
packed data bytes
Records may span across blocks. A partial packed set will be continued
as a new record with the same sequence number in the next block. A
packed sequence of bytes will be continued in the next block and remaining
packed data will be present to complete the record, to make 160 bytes.
Catalog numbers have a two digits suffix to indicate the data type.
The Pal manual defines the types as:
2x Relocatable Binary
3x Source cards (Hollerith)
4x Compressed Source (encoded)
5x Listing
8x Absolute Binary
where x == 4 indicates card medium.
The hexdump for an example Source file (890548-34) is:
0000000 10 62 10 62 10 62 10 62 10 62 10 62 10 62 10 62
*
0000070 10 62 10 62 10 62 10 62 10 62 10 62 10 62 40 40
0000080 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40
etc.
which converts to ascii characters:
**************************************** blank ...
sds_nm - List external defs from SDS Standard Binary Object files.
Usage: sds_nm bias file...
bias is an octal value defining the origin of the first file in file...
file... is a list of SDS Standard Binary Object files.
Sds_nm will ignore records not in standard binary format, ie, the 4th
character is not 05.
sds_bindmp - Dump SDS Standard Binary Object file to stdout.
Usage: sds_bindmp file
file is a standard binary object file.
Sds_bindmp will note and skip over records not in Standard Binary format, ie, the 4th
character is not 05.
Sds_bindmp will print Fortran Library catalog cards that start with '^2'.
Sds_bindmp will print Control Word information from a Standard Binary format record.
sds_listtape - List contents of simh mag tape.
Usage: sds_listtape file
file is a simh tape format file.
Sds_listtape is an adaptaion of Rich Cornwell's listape program that ignores
gap markers produced by the SDS magtape simulator.
sds_libsplt - Split a Fortran library file composed of binary object files seperated by catalog cards into individual files named according to the catalog card names.
Usage: sds_libsplt file 'file' is a Fortran Library file composed of binary object files seperated by catalog cards. Object files are copied to individual files in the current dirctory named according to the catalog card names. Catalog cards are copied into file 'ctl' in the current directory in the order of their occurence in 'file'.
sds_libmk - Create a Fortran Library file from files in the current directory.
Usage: sds_libmk file Copy binary object files named by records in the catalog file 'ctl' in the order of their appearance into 'file'. Preceed each binary file by it's record in the catalog file.
mkdeck - Convert file from ascii to Hollerith format. Usage: mkdeck -a file
Specify -a option to convert from ASCII to Hollerith format. Other options are
available
Mkdeck is copied here from Rich Cornwell's I7000 kit