File: HEADER.HL of Tape: Sources/Other/new-16
(Source file text)
HEADER.SV is a program for creating DECSYSTEM-8 header blocks which are used as a machine-readable identification of each media 'volume'. The header information is stored in block 6, which is the last block used by the directory. For small devices such as DECtapes or floppy disks this block is never used. For big disks, however, the header block may ultimately be overwritten, in which case the header infor- mation will be lost, but no other deleterious effects will occur. The descriptive information about the volume which is written by the program can be printed with the directory listing by the DECUS ver- sion of DIRECT (DIRECT-V7B) using the /H option. This is the prin- ciple use of HEADER.SV for many users. HEADER.SV contains its own built-in 'help' file, so just respond with a 'Y' for help when run- ning the program.