Re: Amigas with both Zorro-II and Zorro-III RAM?
Hi Ingo,
On Wed, Dec 5, 2018 at 9:56 AM Ingo Jürgensmann <ij@2018.bluespice.org> wrote:
> Am 05.12.2018 um 09:27 schrieb Christian T. Steigies <cts@debian.org>:
> >> A proper test machine would be an A3000 or A4000 (or T variant),
> >> equipped with a Zorro II expansion card that contains Zorro II RAM
> >> (e.g. a combined SCSI/memory expansion card).
> > I should still have a GVP Series-II SCSI controller with 8M RAM (my first
> > expansion card, perhaps I can still find the huge 100MB disk I bought with
> > it). I do also have an A3000, but this machine has no expansion card, ie
> > only the built 030 CPU, 1(?)MB RAM, no harddisk, no NIC, ... so no Z-II RAM?
> > But if we would place this card in crest or kullervo, we'd have a suitable
> > test machine?
>
> About the NIC: just buy an X-Surf100. That’s the easy part. ;)
>
> About ZIII RAM: I still should have a spare BRP available for that purpose of a porter box. But then again it would be a slow memory (12 MB/s vs. >60 MB/s), so the biggest problem is to get a 060 card, which are quite expensive on Ebay, but there are some cards on auction at the moment:
>
> - GVP G-Force 040 for A3000: https://www.ebay.de/itm/GVP-G-Force-3040-fur-Amiga-3000/163410730541
> - Cyberstorm PPC/060: https://www.ebay.de/itm/AMIGA-Phase-5-CyberStorm-PPC-233MHz-mit-Rev-6-68060-und-128MB-RAM-TOP/202523892233
>
> The GVP card might be cheaper, but it is only a 040 and I think you’ll need expensive, special GVP memory modules whereas the Cyberstorm already comes with 128 MB PS/2 memory, but will rise in cost for that auction.
> Sometimes you can even buy ZIP-TO-DIMM adaptors on Ebay, but I’m not sure about that, because of the fragile nature of ZIP chip legs…
> About disk: there is the Budda IDE card for quite a few bugs: https://icomp.de/shop-icomp/en/shop/product/buddha-ide.html :
> > The Linux- and NetBSD drivers for older versions of the Buddha controller can be used on this new version without change.
None of the above should be needed to test this. A plain A3000/030 with
Zorro II expansion card with Zorro II memory should suffice.
> About ZII memory… I still might have a ZII card with some memory on it, but memory with <5 MB/s bandwidth? Come on...!! ;)
The point is that the kernel (probably) crashes if there is Zorro II
memory present.
There is no plan to make everything run from that slow memory ;-)
Hmm, perhaps I can just fake Zorro II memory in a memfile, and test it on my
A4000?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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