Hello all! I've been a member of Spectrum Computing for some time now, and have written a few Spectrum games in machine code. Recently, I've found myself becoming interested in the ZX81, mainly due to its rather eccentric method of video generation. Earlier this year, I bought one with a RAM pack, original documentation and a few tapes for £30, probably the best price I was ever likely to get considering the good condition.
I haven't had the chance to try it out yet, so instead I've been fiddling about and testing snippets of code in emulation, just trying to figure out the specific details of the Zeddy's hardware. When I start using my real machine, I hope to try out some more advanced hi-res techniques, provided I can get my head around all the intricacies of the video system.
Anyway, that's probably enough for now. I look forward to bothering asking you all for advice, and hopefully contributing some too from time to time.
Thanks!
Hello from Sunderland, UK
Hello from Sunderland, UK
My Sinclair software to-date
Working on something, as always :)
Working on something, as always :)
- 1024MAK
- Posts: 5153
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
Re: Hello from Sunderland, UK
Hello and welcome to our forum PROSM!
I hope you enjoy this forum
When you are ready, please do ask any questions that you may have.
Mark
I hope you enjoy this forum
When you are ready, please do ask any questions that you may have.
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
Re: Hello from Sunderland, UK
Thanks for the kind welcome, 1024MAK! Nice to see a familiar face from Spectrum Computing.
My Sinclair software to-date
Working on something, as always :)
Working on something, as always :)
Re: Hello from Sunderland, UK
recognizable.
No problem, we can help you with understanding the ZX81.I haven't had the chance to try it out yet, so instead I've been fiddling about and testing snippets of code in emulation, just trying to figure out the specific details of the Zeddy's hardware. When I start using my real machine, I hope to try out some more advanced hi-res techniques, provided I can get my head around all the intricacies of the video system.
Anyway, that's probably enough for now. I look forward to bothering asking you all for advice, and hopefully contributing some too from time to time.
1 quick tip: HALT is not HALT as it is on the ZX Spectrum. You can't use that as a delay.
- 1024MAK
- Posts: 5153
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
Re: Hello from Sunderland, UK
HALT is especially fun when it’s running in FAST mode
Mark
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.