[ On Sunday, August 3, 2003 at 10:52:19 (+0200), Wojciech Puchar wrote: ]
> Subject: Re: Getting TERM right 
>
> > In message <m19j3Pf-000B44C@proven.weird.com> "Greg A. Woods" so eloquently wrote:
> > > I'd probably still be using my real VT100s for serial consoles but they
> > > either do Xon/Xoff flow control and/or drop characters even at 9600 bps.
> > > They are, after all, being driven by a measly old 8080 CPU with, IIRC, a
> > > polled UART for I/O.
> 
> i wrote PC terminal emulator years ago that worked at 115200 on
> 4.77Mhz PC-XT. it's rather bad coding.

On a PC-XT you can write BASIC code that'll do RS-232 I/O at 9600bps,
and I have done so.

If it's the one I think it is the UART in the vt100 is probably an order
of magnitude dumber than the UART in the original PC-XT.  The 8086 in
the PC-XT is a full 16-bit CPU running one hell of a lot faster (5
times?) than the 8-bit 8080 in the vt100.  The PC-XT even has a
semi-"modern" interrupt controller in comparison.

Even the original PC, with it's 8-bit interfaced 16-bit 8088 is one hell
of a lot more powerful a computer than the vt100.  It's a whole
generation in terms of Moore's law.

-- 
						Greg A. Woods

+1 416 218-0098                  VE3TCP            RoboHack <woods@robohack.ca>
Planix, Inc. <woods@planix.com>          Secrets of the Weird <woods@weird.com>