[sebhc] Re: H8 data record format
sp11 at hotmail.com
Thu May 6 15:27:46 CDT 2004
>Hmmm ... I'm not clear if/how the 'Tape Format' described is related the
>'Absolute Binary Format'. Anyone know?
Sure thing. The .PID (AKA .tape) format contains all the bytes that would
be written to a tape in a dump operation. This makes it ideal for
emulation. In the case of a PAM-8 dump this would be:
32 SYN chars (0x16)
1 STX char (0x02)
1 record type / end flag
1 block sequence number
2 byte count (of data)
2 execute address
2 load address
(cnt) data bytes
2 extra bytes to flush buffer (actually a 2nd copy of
(the above may be repeated for multiple-block files)
The .BIN binary format is just the data bytes. Since the execute and load
address are missing, and there's no way to represent non-contiguous multiple
blocks, it is therefore not as well suited for storing tape software.
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