> On 20 Apr 2016, at 23:25, Phil Budne <p...@ultimate.com> wrote:
> 
> Ken.Cornetet wrote:
>> I guess I need to shout this:
>> ******* KERMIT DOES NOT WORK ON SIMH EMULATED RTE-6/VM ********
> 
> Why not?
> 
>> Kermit does not exist (and probably couldn't feasibly exist) on any earlier 
>> versions of RTE.
> 
> Again, why not?
> 
> Having just written a new shell for PDP-7 UNIX (because the original
> could not be found), I can't imagine much other than a lack of
> something resembling a serial console that would prevent _some_
> version/subset of KERMIT (or something similar like X or ZMODEM) from
> being cobbled together.
> 

And since the connection can be assumed to be lossless, the protocol could be 
really simple, e.g. something like this:

G=Guest, H=Host

Example of a write operation..

G:      WRITE-FILE
H:      ACK
// Now we send the file structure / word size etc
G:      FILE-META-DATA
G:      <file size and a bunch of OS specific stuff that is written to a second 
file>
H:      ACK
G:      FILE-DATA
G:      <the actual data>
G:      ACK

Done.

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