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Re: NadaNet (was: Re: Ethernet & Internet on Apple 2)
- Subject: Re: NadaNet (was: Re: Ethernet & Internet on Apple 2)
- From: mjmahon@aol.com (Michael J. Mahon)
- Date: 01 Jul 2004 19:25:06 GMT
- Newsgroups: comp.sys.apple2
- Organization: AOL http://www.aol.com
- References: <hOIEc.195$65O.75@news04.bloor.is.net.cable.rogers.com>
- Xref: g2news1.google.com comp.sys.apple2:1616
Glenn Jones asked:
>Will this work using IIgs motherboards via the 16 pin DIP? I have a pile of
>ROM01's.
Yes, it should work fine if the IIgs is run at 1MHz. It relies only on the
pushbutton 1 input and the annunciator 1 output. The code already has
strategically inserted softswitch references to slow down a Zip Chip
for the period of time-critical operation. Perhaps these could be
modified to accomodate a IIgs.
If it is desired to run 65816 code, "wrappers" would be required
to ensure that the network code runs in 65(C)02 mode. NadaNet
code is designed to transfer data only to/from the 64KB of main-bank
RAM space.
I have not tested the code on a 65816, so if there are any timing
variations relative to the 65(C)02, then it would require modification
(think Disk ][ driver code).
-michael
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