[TUHS] [pups] Ancient Unixes
toby at smartgames.ca
Tue Apr 25 07:51:19 AEST 2006
On 24-Apr-06, at 5:00 PM, Guy Sotomayor wrote:
> On Mon, 2006-04-24 at 16:44 -0500, Norman Wilson wrote:
>> Bill Cunningham:
>> I am copying all I can from the unix archive and will burn it
>> to cd
>> because I know how precious they are. But what I was thinking
>> was v5,6,7 for
>> example. Take them and add USB support. Linux would be a good
>> example from
>> which to draw from. Because it's Posix. Much more could be adde
>> to /dev.
>> Has anyone ever made a UNIBUS or Qbus USB card?
> The problem isn't so much the hardware, it's the software. A USB
> (OHCI/UHCI) isn't exactly small and I doubt you could create a driver
> stack that would fit in a PDP-11's 16 bit address space (ie TCP/IP
> is a
> stretch in that it only works on systems with 22-bit addressing and
> say that a USB stack is *at least* as complicated as a TCP/IP stack).
No, it certainly is possible. I've used USB stacks on much smaller
devices, such as Microchip PIC18. That is not a full-featured stack,
but certainly enough to do quite a lot.
TCP/IP doesn't have to be large either. See Adam Dunkel's uIP: http://
> TTFN - Guy
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