16 Dec
2005
16 Dec
'05
2:35 a.m.
Point being that someone could write a generic CP/M
utility which can dump a
disk image over a COM port instead of only a file. I like ADT because it has
the nifty ability to download the transfer program to the Apple using
console redirection...ADT basically stuffs a monitor script into the Apple
over the serial connection. CP/M probably has the same ability...I don't
know.
I've already written this, it's called CPT (CPm Transfer) and it consists of a
little PC utility and a CPM client which can read/write an enture disk image
through the COM port. The PC program uses the client to read the CP/M
system tables etc. to determine the disk layout.
Works quite well - I used it to backup a number of CP/M systems before
I wrote ImageDisk - however it's not as simple as you might think - there
is no guarantee that the CP/M disk handler can read/write the system
tracks (which are often in a different format) - Basically, CP/M does not
provide any standardized way to read/write the system tracks (this is
normally done by platform specific programs). I've provided a number
of options to handle the common cases, however there are not
Guarantees - where it's usable, ImageDisk is a better solution.
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
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