cosmacelf@groups.io

Forum FAQ and Guidelines #ThisGroup

This group has a FAQ and guidelines page of sorts on this group's Wiki at: *https://groups.io/g/cosmacelf/wiki/CosmacElfGroupFaq* Email users will find a link to this in the footer area of posted mess

This group has a FAQ and guidelines page of sorts on this group's Wiki at: *https://groups.io/g/cosmacelf/wiki/CosmacElfGroupFaq* Email users will find a link to this in the footer area of posted messages. To make this document more discoverable for those who use the groups.io web interface, this message is being posted as a "sticky" topic so that it appears at the top of the displayed list of messages.

By Dave Ruske ·

Elf 2K - Programming the ATF22V10 3 #ELF2K

Over the past year I have been assembling the components I needed to populate a set of Elf 2k PCB that I got from Bob at Spare TIme Gizmos. The stumbling block that has kept me from completing it is t

By Stingray ·

FigForth

This is a question for Dave Schultz or anyone else who is into FigForth. I am running Dave's version of FigForth on my MS2000 clone and have run into an interesting anomaly. The disk I/O works really

By cellarcat ·

UDI-500 7

I learned of an interesting 180x computer today. The UDI-500. Anyone know anything more about it? Apparently it had swappable processor boards and came with Z-80 and 1805. Could run Microdos. Here is

By wrcooke@... ·

1802/Mini expander and RTC card update 15

I received the boards today and put one together and so far, everything appears to work correctly. It seems I did reverse the labels on the RTC and port expander address jumpers... there's always some

By David Madole ·

Support files for 1802/Mini Expander card

Attached are some files to support using the expander card on the 1802/Mini with Elf/OS. I’ll get the sources packed up and onto Github along with these binaries, but thought I’d send them out this wa

By David Madole ·

Is the Hand Held Computer truly beaten by non 8 bit rivals ? 19

The key board is too small, the screen is too small, the graphics is not good and I do not like static card memory as well. But I rather like the idea of a hand held computer still, which like recalcu

By John Gooch ·

wire wrap supplies 11

Today I decided to give wire wrapping a try on my computer projects. Before I order my supplies I wanted to ask you guys if you had any recommendations. I want to make sure the wire and tools I buy ar

By Alan Jones ·

New hex Front Panel for the Membership Card 13

Hi all, The flurry of new 1802 boards inspired me to put on my thinking cap and see what I could come up with. The result is a new Front Panel card for the 1802 Membership Card (rev.L). I removed the

By Lee Hart ·

Not-quite-functional COMiX-35 5 #COMX35

Behold: my technically "finished" -- but not quite functional -- COMiX-35! I think that the 1869 is probably dead or at Death's door, and I guess it could be the 1870 that's bad... but the 1869 is ext

By Derek Christenson ·

TASM compatible Multi-Platform Cross-Assemblerfor Unix with 1802 Support

Jorge Giner Cordero has released a new version of his cross assembler with 1802 support. The source code for the The cross is downloadable. I have it running on Ubuntu. With a few exceptions, it is TA

By Hajo ·

1802/Mini updates and development

I have continued to test the new expander card and it seems to check out functionally in all regards. I have now implemented two-level I/O on one of my machines to test according to the following sche

By David Madole ·

Todd's ELF-ish to get VGA - Hopefully 20 #Homebrew

Hi All - Way back in the end of August last year, Richard began the thread "VGA for the Elf - Again", https://groups.io/g/cosmacelf/message/36188, and mentioned the SCN2674 as a possibility. Ian May f

By taf123 ·

PDP-8 Emulator for 1802 2

I found a couple of articles in DDJ from 1982 for a PDP-8 emulator that runs on the 1802. Since I am a fan of both processors I thought it very interesting. The articles are in the June and July 1982

By wrcooke@... ·

COMIX-35 Power Supply 12

Back in the day, after reading the original COSMAC ELF articles, I saved for, bought and assembled a Quest Super Elf. Time passes and I find I have the desire to relive my younger days (daze). I purch

By Ed Orbea ·

Rc/Forth additions BASE HEX DECIMAL SETQ R@ CMOVE 13

Back in the day of PDP-11 / RT11 I worked with astronomers who introduced me to Forth. Easy to control switches, drive motors, read encoders etc, a couple of words moved the dome and scope to the requ

By Glenn ·

COMIX-35 - COMX-35 Clone 241

Hello, This is not my project, but I thought it may interest some of you. https://github.com/schlae/comix-35 This is my COMX-35 project: http://www.comx35.com/avicomx35.html ED

By ekeefe8051 ·

#COMX35 - YouTube videos on modernising (playlist) 4 #COMX35

I've made a playlist of my COMX-35 related videos: https://youtube.com/playlist?list=PL5pwokf56wMINHWu9hPCC9P9mpM31b5bx I've started working on the COMIX-35 build. /Brett

By Brett ·

#COMX35 - YouTube videos on modernising #COMX35

Hi, I've made a few YouTube videos taking my COMX-35 from a starting "it works" state, modernising and "improving" some parts to finally loading some software. Four parts so far, part 1 is here: https

By Brett ·

Got my VIP2K Working! 4 #VIP

A few days ago, I finished the COSMAC VIP2K kit I bought a few months back from Lee Hart, and it worked first try! What a neat little kit computer. Here's some photos of my build of it and also of it

By Derek Christenson ·