Re: Ok, anyone started Contiki 4 AII yet?

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

In article <3E766B47.8040200@mindspring.com>, Rob <rsteinmetz@mindspring.com>
writes:

>Dosius wrote:
>>>
>>>The apple libraries don't have an implementation for the clock() function,
>and
>>>therefore no CLK_TCK constant.
>>
>> 
>> Certainly, there is no one standard clock for the Apple ][.  It might
>> be necessary to roll your own Thunderclock support and hope there is a
>> clock card in the ][ and that it is Thunderclock compatible.  The
>> Gregory clock emulator, for example, is not.
>> 
>> -uso.
>
>It seems that the Apple ][ port may get complicated, with configuration 
>options or patches for different hardware configurations. I suspect we 
>will get an initial version that matches CHRIS MORSE's hardware, and 
>that would be just fine. I would also point out that Gregory doesn't 
>even use his own emulator.

What is needed is not the time of day, but a source of regular
timer interrupts.  Some clock cards can provide such interrupts,
but I would expect that they are needed at around 60Hz, like VBL.

Any peripheral card with a 6522 (like a Mockingboard) can generate
such interrupts, as can a mouse card, or a //c or IIgs.

-michael

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