[rescue] WTB: SGI (MIPS architecture) Systems

Ian Finder ian.finder at gmail.com
Wed May 26 17:39:09 CDT 2010

Serial? That's pretty slow. How did the 3D commands and gfx commands work?
Sent via mobile.-----Original Message-----
From: r.stricklin
Sent:  05/26/2010, 9:52  AM
To: The Rescue List
Subject: Re: [rescue] WTB: SGI (MIPS architecture) Systems

On May 26, 2010, at 8:14 AM, Dave Fischer wrote:

> bear at typewritten.org writes:
>> IRIS 1000/1200 - host-attached terminals; PM1 (8 MHz 68000), Microram
>> multibus memory, Excelan EXOS101 ethernet. The processor is very
>> clearly a derivation of the Stanford CPU, with some extra EPROMs to
>> control the graphics and some circuitry to control the mouse. The
> What was the intended host, VAX? What was the interface, something
> custom?

VAX, either by serial port or by ethernet (XNS). The host library came
as source so theoretically you could've compiled it on any host you
were brave enough to port to. The serial protocol was documented
pretty thoroughly in the included documentation so one might also have
rolled one's own. IBM attachment came relatively quickly after, with
an add-in card giving a 3270 coax interface. I believe the intended
environment here was VM/SP.


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