Sample 6502 code for programming the Uthernet

[D Finnigan <dog_cow@macgui.com>]

Some visitors to Mac GUI recently probably saw the picture of UDP
communication with the Apple IIe where I was sending UDP packets to the
Apple IIe over the Uthernet card and printing them on the screen in ASCII.

All this code I have written for the Uthernet hopefully will appear in a
future Juiced.GS article, also with full explanation of how to program the
Uthernet with its CS8900A Ethernet chip and PacketPage memory addresses.

In the mean time, starting now, all my Apple II code that I will write will
be PUBLIC DOMAIN. That includes this Uthernet code.

I have Ethernet packet send and receive code, as well as Uthernet
configuration code that will set the MAC address and configure the Uthernet
for send and receive. I also have code that sends a gratuitous ARP.

All of it is in 6502 machine code, but I have added comments to it all.

If you can't wait for the Juiced.GS article, I will be glad to send the code
to anyone who asks. You will get ASCII source files.

In the future I want to write some code for an IP stack. We'll see where
this goes. :-)

-- 
]DF$
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