UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Other Discussions > Homebrew Equipment

Notices

Homebrew Equipment A place to show, design and discuss the weird and wonderful electronic creations from the hands of individual members.

Reply
 
Thread Tools
Old 18th Sep 2018, 12:25 am   #1
Karen O
Hexode
 
Karen O's Avatar
 
Join Date: Jul 2011
Location: Bridgnorth, Shropshire, UK.
Posts: 422
Default Retro computer homebrew: Orton SC/MP computer

This has been under development for some time so, hopefully, all of the bugs have been eradicated!
Attached Files
File Type: pdf Orton SCMP computer manual.pdf (708.0 KB, 63 views)
File Type: zip Orton SCMP computer files.zip (22.1 KB, 15 views)
__________________
Karen O

Temporal Paradox: Kills all known grandfathers. Dead.
Karen O is offline   Reply With Quote
Old 18th Sep 2018, 2:27 pm   #2
dave_n_t
Pentode
 
dave_n_t's Avatar
 
Join Date: Sep 2003
Location: Cheltenham, Gloucestershire, UK.
Posts: 112
Default Re: Retro computer homebrew: Orton SC/MP computer

What a phenomenal effort, Karen!



I admire your ingenuity, patience, and ambition.


I used to write Z80 assembly code and so have a bit of an idea of what's involved, but I'm certain I'd never manage anything like this collection.


dave
__________________
Dave Teague
dave_n_t is offline   Reply With Quote
Old 18th Sep 2018, 9:09 pm   #3
Karen O
Hexode
 
Karen O's Avatar
 
Join Date: Jul 2011
Location: Bridgnorth, Shropshire, UK.
Posts: 422
Default Re: Retro computer homebrew: Orton SC/MP computer

You are very kind Dave, thank you!
__________________
Karen O

Temporal Paradox: Kills all known grandfathers. Dead.
Karen O is offline   Reply With Quote
Old 19th Sep 2018, 9:04 am   #4
dalekmoore2007
Pentode
 
Join Date: Aug 2008
Location: Melbourne, Australia
Posts: 101
Default Re: Retro computer homebrew: Orton SC/MP computer

Your pretty much a genius Karen amazing work what ever you put your mind to !
dalekmoore2007 is offline   Reply With Quote
Old 19th Sep 2018, 9:56 am   #5
Karen O
Hexode
 
Karen O's Avatar
 
Join Date: Jul 2011
Location: Bridgnorth, Shropshire, UK.
Posts: 422
Default Re: Retro computer homebrew: Orton SC/MP computer

Nah! If I were a genius I think my bank balance would look rather better

I just get fixated and devote too much time to old ideas.

Who else would still be thinking about an 8 bit micro that was significantly under-powered compared to its contemporaries forty years later?
__________________
Karen O

Temporal Paradox: Kills all known grandfathers. Dead.
Karen O is offline   Reply With Quote
Old 19th Sep 2018, 11:04 am   #6
Nymrod121
Octode
 
Nymrod121's Avatar
 
Join Date: Apr 2012
Location: Worcestershire, UK.
Posts: 1,374
Default Re: Retro computer homebrew: Orton SC/MP computer

Quote:
Originally Posted by Karen O View Post
Who else would still be thinking about an 8 bit micro that was significantly under-powered compared to its contemporaries forty years later?
Similar-mindset people who think that a 1911 Underwood typewriter is a thing of beauty (guilty as charged, m'Lud) - "The Repair Shop", episode 11, series 3
Guy
__________________
"No-one's ever complained before!"
"Are they Americans?"
(Joyce Grenfell/Edie Martin: "Genevieve")
Nymrod121 is offline   Reply With Quote
Old 20th Sep 2018, 1:44 pm   #7
FRANK.C
Hexode
 
FRANK.C's Avatar
 
Join Date: Feb 2006
Location: Roscommon, Ireland
Posts: 488
Default Re: Retro computer homebrew: Orton SC/MP computer

Hi Karen
Well done on what must have been a mammoth task.
Getting a PIC to produce video for your terminal was a big ask on it's own.
I bet your fingers are sore from counting instruction cycles.

Frank
FRANK.C is offline   Reply With Quote
Old 20th Sep 2018, 2:42 pm   #8
Karen O
Hexode
 
Karen O's Avatar
 
Join Date: Jul 2011
Location: Bridgnorth, Shropshire, UK.
Posts: 422
Default Re: Retro computer homebrew: Orton SC/MP computer

Thank you Frank,

As a project it has been going on for about ten years, so I've probably got the bugs sorted out!

I like PICs because they're very deterministic. I have done some things with PICs that one oughtn't be able to do (like video generation).

I confess I used the Microchip 'SIM' debugging tool, which includes a stopwatch to time sections of code. Even so, there are places where every single cycle is used!
__________________
Karen O

Temporal Paradox: Kills all known grandfathers. Dead.
Karen O is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 1:29 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright ©2002 - 2018, Paul Stenning.