21 Jun
2012
21 Jun
'12
9:38 p.m.
On 6/21/12 2:22 PM, David Riley wrote:
As far as info on the custom LSI, I get the impression
that info
is available for some of the chipsets in developer tech notes that
were shipped on the developer program CDs. I'd love to see some
of those, but I've never come across a source (and I suspect it
wouldn't be strictly legal to distribute). The brief overview
tech note on machines like the 9500 mentions the existence of
such documentation, but it's unclear how detailed that might be.
A fair bit is in the developer information for the CHRP platform,
and in the sources for Darwin, the BSDs, and Linux. A lot of work
has been going on with the Mac driver in MESS also, esp on how the
floppy interfaces work.
Something like an 030 LC class machine wouldn't be that hard to run
down to the bare metal, given that you could bootstrap it in MESS, and
they used 40 pin ROMs instead of ROM SIMMs.