[LispM] Further Developments

[Brad Parker]

On 9/17/18 1:29 PM, Daniel Seagraves wrote:
> I spun up a blog for posting the ongoing status of things; It’s at 
> https://www.orinrin.land/lispm/

Let me know if you want any kibitzing on  bringing up the CADR.  I don't 
know anything about the Lambda's, but I've booted CADR hardware many 
many times (not in it's original form, but I still think I can offer 
some guidance).

What cards do you have in the xbus chassis?  Do you have a disk 
controller card?  an i/o card?  memory?

The PROM will be looking for the disk controller.   I made an FPGA 
version of that controller.   I would think with a beagleboneblack you 
could quickly make something which looked enough like the actual disk to 
make the controller happy.  And I have bits which you can feed it to 
boot. (I'd look at the st-506 emulator which uses the BBB)

It's the monitor which might be interesting.  The keyboard and mouse are 
pretty straight forward but as I recall the monitor sync is odd.  I'm 
not sure you can find a monitor which would sync up but you could 
certainly (again) make an scan converter with an FPGA. I've done that 
for various video game hardware which I've stuffed into fpga's.

have fun.  in theory wire wrap is gas tight.  the one cadr i saw in the 
wild was pretty corroded.

-brad

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