Can't get a new ULA for your Spectrum?

Visitors can check out the Forum FAQ by clicking this link. You have to register before you can post: click the REGISTER link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. View our Forum Privacy Policy.
Want to receive the latest contracting news and advice straight to your inbox? Sign up to the ContractorUK newsletter here. Every sign up will also be entered into a draw to WIN £100 Amazon vouchers!

You are not logged in or you do not have permission to access this page. This could be due to one of several reasons:

You are not logged in. If you are already registered, fill in the form below to log in, or follow the "Sign Up" link to register a new account.
You may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.

DimPrawn replied

11 December 2012, 11:35
Originally posted by SupremeSpod View Post

Replace it with an FPGA.

A CPLD will do.
Leave a comment:
NickFitz replied

11 December 2012, 11:30
Originally posted by ctdctd View Post

Anyway, I don't think the browser support on the ZX81 is very good.

ZeddyFox, the first web browser for the ZX81, was released earlier this year: https://groups.google.com/forum/?fro...ir/iIZLLNGgFLM

Naturally, it was announced on a Usenet newsgroup and doesn't seem to have a website

Download link available here (in German): forum.tlienhard.com • Thema anzeigen - ZEDDYFOX: Der Web-Browser für den ZX81 mit ZeddyNet
Leave a comment:
ctdctd replied

11 December 2012, 11:20
Originally posted by SupremeSpod View Post

Replace it with an FPGA.

Or valves - much more retro
Leave a comment:
SupremeSpod replied

11 December 2012, 10:52
Replace it with an FPGA.
Leave a comment:
ctdctd replied

11 December 2012, 10:45
Originally posted by zeitghost

Buy the book & find out.

Buy, you said Buy

Who buys anything these days - isn't there a pdf?

Anyway, I don't think the browser support on the ZX81 is very good.
Leave a comment:
ctdctd replied

11 December 2012, 10:10
Originally posted by zeitghost View Post

Then reverse engineer one for yourself (presumably from a photomicrograph):

Vintage computers on show at Bletchley Park - V3.co.uk Labs - a blog from V3.co.uk

Spectrum Clone Design Blog

Hm, I've got a broken ZX81, think it can be adapted to work?
Leave a comment:
zeitghost started a topic Can't get a new ULA for your Spectrum?

11 December 2012, 09:03
Can't get a new ULA for your Spectrum?

Then reverse engineer one for yourself (presumably from a photomicrograph):

Vintage computers on show at Bletchley Park - V3.co.uk Labs - a blog from V3.co.uk

http://www.zxdesign.info/

Last edited by zeitghost; 11 December 2012, 09:08.
Tags: None