Re: Battle of the Nostalgics

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

Roy replied:

>Michael J. Mahon wrote:
>> Roy replied:
>> 
>> 
>>>Michael J. Mahon wrote:
>> 
>> 
>>>>Certainly in a retrocomputing newsgroup especially, you can
>>>>see why some think of Woz's machine as the "real" Apple II
>>>>and the IIgs as a product of creeping featurism.
>>>>
>>>>Just to calm the IIgs lovers, I happily admit that the IIgs has
>>>>more "horsepower" than the 8-bit Apples, 
>>>
>>>Which is why I'd love to see a Transwarp like turbo card using the new 
>>>much faster 65C02/65816, my IIe running at 14-20 mhz interests me....
>> 
>> 
>> I'm quite happy with an 8 MHz Zip Chip.  ;-)
>
>I envy you.
>How does that effect your music routines?

The Zip Chip can be configured to slow down on speaker accesses, so
it has absolutely no effect.  Good thing, too, since those routines are
exactly timed for a standard (~1MHz) Apple clock.  ;-)

(It is not generally useful for sonds to be accelerated--that turns
the "beep" into a very short "chirp".  I think that slowing down on
a speaker reference should be the default configuration.)

I have other exact timing routines that I have used to communicate
between Apples, and, to make them compatible with Zip Chips and
other accelerators, I reference $C0E0 every few milliseconds.  That
reference is detected by accelerators and presumed to be code 
dealing with a slot 6 disk controller, so they all put the speed brakes
on and run at standard speed for a little while.  (Every accelerator
I've seen defaults to slot 6 in "slow" mode, so everyone doesn't
clobber their 5.25" disks.)

>I do have a 10 mhz iigs, and a IIc+ (and a Transwarped IIe, but that's, 
>what? 3.6 mhz?)

Sounds about right--I've never used a TransWarp.

-michael

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