Tachyon Re-Xmit - Input Files

Tachyon Re-Xmit can create TRANSMIT files from workstation files that are in any of the following file formats, identified by their Tachyon Operating System “FILEDATA” types:

FILEDATA TEXT (ASCII text)

Tachyon Re-Xmit can create TRANSMIT files for sequential data sets and PDS members from ASCII text files. ASCII text lines are converted to EBCDIC records in any of the supported record formats (fixed, variable, spanned or undefined). Tachyon Re-Xmit can optionally expand horizontal tab characters to tab stops at every 4 or 8 characters. When ASCII text lines are converted to fixed length records, they are automatically padded with blanks to the full record size if needed. ASCII text lines may be terminated by a single line-feed (X'0A'), carriage-return (X'0D') or carriage-return and line-feed pair (X'0D0A').

FILEDATA RECORD (EBCDIC records)

Tachyon Re-Xmit can create TRANSMIT files for sequential data sets and PDS members from Tachyon Operating System-style EBCDIC records. This is useful for sending data back to the mainframe that has been created or updated by a Tachyon Operating System program. When FILEDATA RECORD files are used to create TRANSMIT files, no conversion of the record format is performed. For example, if a workstation file contains variable length unblocked records, then the characteristics of the data set in the TRANSMIT file will also be for variable length unblocked records with the same record length. The only exception is for fixed length records, which may be unblocked or reblocked as desired.

The record delimiters for workstation files with the different record formats (RECFM) are:

F or FB

Fixed length records have no record delimiters.

U

Each record must be prefixed with a 2-byte field containing the length of the record. The length does not include the 2-byte field.

V or VS

Each record will be prefixed with a 4-byte standard Record Descriptor Word without a Block Descriptor Word.

VB or VBS

Each record will be prefixed with a 4-byte standard Record Descriptor Word. Each block will be prefixed with a 4-byte standard Block Descriptor Word.

FILEDATA BINDER (load modules)

Tachyon Re-Xmit can create TRANSMIT files for PDS load libraries from load modules created by the Tachyon Linkage Editor. using the COMPAT=LKED option. Load library data sets always contain undefined records (RECFM=U).

Message Files

Tachyon Re-Xmit can also include a “message” with the transmitted data set in the TRANSMIT file. Tachyon Re-Xmit reads the message from an ASCII text file. The text lines must be no longer than 80 characters after expanding any horizontal tabs to tab stops at every 8 characters. Any of the supported line delimiter characters are allowed.