Smallest TCP/IP code?

From: Randy McLaughlin <>
Date: Fri Feb 18 12:00:20 2005

From: "Brad Parker" <>
Sent: Friday, February 18, 2005 11:15 AM
> "Randy McLaughlin" wrote:
>>On comp.os.cpm there is a thread on porting TCP/IP to CP/M. One idea was
>>use a micro-controller as a smart device off-loading the stack to it and
>>communicating via serial or parallel port.
> hum. I would think with 64k and BSD C you could get a simple tcp + slip
> going on CP/M. It's been a long time since I did any CP/M work,
> however.
> I did a tcp/udp from scratch w/ethernet on a PIC 18F. It would not pass
> muster with Van Jaconson (or Sally Floyd :-) but it works fine on a
> local wire. Nothing like advertising a window size of 256 bytes :-)
> -brad

The issues include:

What are you doing with TCP/IP?

If you want a simple client you get to use the entire 64K (telnet, ftp,

If you want to use it via a redirector to attach to a file server then you
have a problem: The TCP/IP code takes up most of the 64K now you want to
load a word-processor to access files on the server?

Another issue is how to physically attach it.

Received on Fri Feb 18 2005 - 12:00:20 GMT

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