18 Nov
2006
18 Nov
'06
6:18 p.m.
On 18 Nov 2006 at 19:32, Jay West wrote:
Eh, not sure that's quite the right way to look at
it, but in the final
analysis, yes.
I'd like to think that FOSSIL drivers have their roots in the old not-
very-compatible 8-bit Z80/808x world. Comms implementations were
about as widely varied as you could get and, stricly speaking, the
CP/M CBIOS didn't demand a comm port implementation (although some
vendors included the comm function under PTP/PTR).
So communications programs such as DSZ and Kermit used customizable
overlays. Since DLL's didn't exist back then, you filled out your
overlay, then combined with the generic part of the program and wrote
a customized executable out.
Cheers,
Chuck