On Nov 4, 2008, at 12:06 PM, Brad Boyer wrote:
On Tue, Nov 04, 2008 at 07:34:41PM +0100, Riccardo wrote:
I have a mac II, but I upgraded the SWIM chip, IIRC. I think I
upgraded
only one of the two drives to high density, but that shouldn't affect
you I suppose, since the problem would be the chip. I'll look in my
spare parts bin.
I'm curious about how the chip update appears on the II. Does this
system
now show up as a IIx? My understanding is that the upgrade kit
included
a new set of ROM chips that include the same bits as the ones from
the IIx.
Hopefully there's a logical way to detect this upgrade, but it
would be
interesting to know if the update changes the gestalt ID.
You would detect an upgraded ROM by reading the ROM, I imagine. In
Genie, it's at /sys/mac/rom.
By the way, does anyone know how to calculate a ROM checksum, or will
I have to reverse-engineer CopyROM or somesuch?
Josh
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