wpd@athena.mit.edu (William P Doyle) (03/11/87)
Does anybody have any information about a 68000 based microcomputer made by
Gould called the Gould 9540? I have recently purchased one so that I could
play around with things like memory management (it has an MMU similar to that
on a SUN-1, supposedly,) or operating system "stuff" in general. My problem
is that it came with, effectively, no documentation. (I bought it second
hand, and Gould never marketted the beast, hence no formal documentation.)
It has a 7 slot Multibus cabinet with a CPU card, a serial IO card, a couple
of memory cards, and a Disk Controller card. The inforation I am looking for
is anything abut its MMU, what peripherals are mapped to what interrupt
vectors, etc... Perhaps all I need to know is info about multibus protocols.
I don't know. If somebody out there knows that "All serial IO on a Multibus
is mapped to Interrupt Vector 3" or something like that, please let me know.
Less probable, if anybody has evered tinkerred with one of these, please send
me some mail. Thanks.
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