Re: Apple II Interrupt card

[mjmahon@aol.com (Michael J. Mahon)]

In article <3E7CC995.1080700@mindspring.com>, Rob <rsteinmetz@mindspring.com>
writes:

>Michael J. Mahon wrote:
>> In article <TaYea.175620$F1.7071@sccrnsc04>, "@nospam.01@attbi.com"
>> <""jsymolon\"@nospam.01@attbi.com"> writes:
>> 
>> 
>>>back to the original goal...
>> 
>> 
>> Yay!  ;-)
>I agree.
>> 
>>>Assume that people want to run Contiki...
>>>
>>>Need:
>>>Ethernet card.
>> 
>> Not necessarily (but I see why you would want something other
>> than a serial port).
>
>One thing at a time. When Contiki is running, there would be strong 
>incentive to build an ethernet card, or get the LANceGS card to work 
>with it.

I'm agreeing with you!

>>>Clock for those who don't have one.
>> 
>> Maybe not.  If it is only for the purposes of timeout determination,
>> then a very approximate "timing" solution may suffice.  But if you
>> have the real time, so much the better.
>> 
>> 
>>>Software:
>>>Contiki uses the uIP stack and works with a clock for timing.
>>>
>
>Contiki needs the clock() function, which is missing from the cc65 
>AppleII library. There could be several versions of this function based 
>upon hardware configuration (mouse card, interrupt manager, clock 
>card(s)) the base version could be a crude software timer. There may 
>also be several other missing functions as well.

It is insufficient to say that "Contiki needs the clock() function", since
the issue is what it needs it for, and what level of imprecision in timing
would still meet the functionality needs of Contiki.