Larry Baker d8004ccaf6 TAPE: Cleanup, minor bug fixes and robustness additions ...

- Minimum -B is 14 (shorter records on mag tapes are considered noise)
- Maximum -B is 65535 (DEC tape controllers have a 16-bit byte count register)
- Remove redundant setting of TAR default record size
- Notify the user when the -E option is being ignored
- Use the UNIT_RO format flag to set the SIMH ReadOnly attach option
- Use three tape marks to mark the end of a volume for RT-11 and RSTS
  (ANSI and DOS11 formats); the third tape mark is harmless on RSX-11
  and VMS, which only write two
- TAR -B must be a multiple of 512 (tar specifies the mag tape block size
  in number of 512-byte records)
- The TAR file must exist
- Use a conditional test with the "is a MEMORY_TAPE image" invariant in
  sim_tape.h to select the correct tape unit attach failure message
- Always print a tape attach summary message, like SIMH does for disks;
  simplify and fix some of the other messages there
- Remove unnecessary memset()'s in dos11_copy_ascii_file()
- Fix a 16-bit integer overflow in the DOS label date calculation

2020-09-22 12:35:34 -07:00

194 KiB

Raw Blame History

View Raw