Trailing-Edge
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PDP-10 Archives
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decus_20tap5_198111
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decus/20-0138/dmptap.txt
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DMPTAP Program Abstract
DMPTAP produces a binary dump of a MAGtape, for use on
tapes whose origin is undocumented. Binary printout is double
spaced so you can use it as a worksheet in determining what kind
of data it is. Bits are printed as ones and zeroes, exactly as
found on the tape, in eight- or six-bit groups for 9- and 7-track
tape. DMPTAP asks you for an output limit, so you can print out
a reasonable sample from the tape. Output can be to any device,
including TTY. Tape error messages interpret each status bit as
per Monitor Calls manual.
Initial size: 2+1P. DMPTAP determines blocksize by
reading the tape. If the block does not fit in core, it expands
the low segment, backspaces the tape, and tries again.