Search found 2 matches

by WayneM
Sun Feb 25, 2024 12:49 am
Forum: Hardware
Topic: How close is the ZX80/81, Jupiter Ace and Spectrum in machine code backwards hardware compatibility?
Replies: 5
Views: 436

How close is the ZX80/81, Jupiter Ace and Spectrum in machine code backwards hardware compatibility?

Hi, I'm curious in how backwards compatible programming in machine code, is between hardware in the ZX80, ZX81, Jupiter Ace and Spectrum? I'm curious if a machine can made to run all 4 sets of software? Is it a matter of different address mapping, such as it would work if you had a system that remap...
by WayneM
Fri Jun 10, 2022 4:30 am
Forum: Hardware
Topic: Hi-res graphics mode in the ZX81
Replies: 15
Views: 16160

Re: Hi-res graphics mode in the ZX81

Hi Guys. Sorry to come in late, but just to let you know, the dccnet links to the hires and display explanations no longer work. I also have some ideas for new hires and color graphics I wanted to share with you and ask you about? I had an interest in kickstarting a community effort to make a new re...