Search found 263 matches

by Spinnetti
Thu Dec 31, 2020 11:59 pm
Forum: ZX Spectrum Lounge
Topic: ZX Uno for the MEGA65
Replies: 2
Views: 2476

Re: ZX Uno for the MEGA65

Thanks... that chick doing the narration is super creepy - like AI generated creepy! (Uncanny valley)
by Spinnetti
Sat Dec 26, 2020 8:32 pm
Forum: WANTED
Topic: SD card reader for ZX81
Replies: 16
Views: 25365

Re: SD card reader for ZX81

The expansion options are awesome, but my dream is to have what looks like a microdrive but is really an SD reader. I'm on KS2 for a Next, but still like the old hardware to run my code on just to show myself it can.
by Spinnetti
Fri Dec 25, 2020 9:36 pm
Forum: Hardware
Topic: ZX81 mods: USB power, CVideo, 32K, MP3
Replies: 7
Views: 9272

Re: ZX81 mods: USB power, CVideo, 32K, MP3

Brilliant mods!

USB power sounds ideal. Are the fuse and zener required for that to work?

Thanks!
by Spinnetti
Tue Sep 29, 2020 8:27 pm
Forum: Development
Topic: "Extreme" 1k programs for ZX80 and ZX81: starter kit
Replies: 15
Views: 26566

Re: "Extreme" 1k programs for ZX80 and ZX81: starter kit

IOS emulator is cool! Happy to contribute our "Zonkey Kong" to it when we have it done (by end of Oct I think?)
by Spinnetti
Mon Sep 28, 2020 7:07 pm
Forum: Development
Topic: What am I missing? - Calling RND from assembly.
Replies: 17
Views: 12824

Re: What am I missing? - Calling RND from assembly.

Thanks.. debugging the elevator. I've got variables for both elevator and player, so rather than do in either move routine, this runs and does a compare on both variables. The player rides up, but stops early. Not sure why yet. When we have this in the can, I want to try my hand at hirez Robotron.
by Spinnetti
Sun Sep 27, 2020 10:03 pm
Forum: Development
Topic: What am I missing? - Calling RND from assembly.
Replies: 17
Views: 12824

Re: What am I missing? - Calling RND from assembly.

Thanks! That 1k Hi rez example is great - game premise is good too! Next thing I'd like to learn, if ya'll are willing to guide or example is how to do an object array. I'm assuming this is the best way to track multiple objects, and move them? In our Donkey Kong example (Zonkey Kong as we call it)....
by Spinnetti
Sat Sep 26, 2020 9:57 pm
Forum: WANTED
Topic: Speccy in good cosmetic condition? (USA)
Replies: 0
Views: 9344

Speccy in good cosmetic condition? (USA)

I don't need it working, just would like a pretty one for the shelf. I dreamed of one as a kid, but they weren't sold here. Would like a nice looking one for the shelf - I'm in line for a NEXT in KS2!

TIA
by Spinnetti
Sat Sep 26, 2020 9:54 pm
Forum: Development
Topic: What am I missing? - Calling RND from assembly.
Replies: 17
Views: 12824

Re: What am I missing? - Calling RND from assembly.

Thanks Will do... - Where's the "new games" topic? Managed to get things working by moving the code around a little and just using the LD A,R and masking bits. Not toooo bad. Will def. check out other examples as I'll need better methods at some point. The result of all this will be a reasonable int...
by Spinnetti
Thu Sep 24, 2020 2:56 am
Forum: Development
Topic: What am I missing? - Calling RND from assembly.
Replies: 17
Views: 12824

Re: What am I missing? - Calling RND from assembly.

Thanks... still getting same value if I call it in near succession. If I call further apart in the code it work fine though. Hmm.
by Spinnetti
Tue Sep 22, 2020 4:54 am
Forum: Development
Topic: What am I missing? - Calling RND from assembly.
Replies: 17
Views: 12824

What am I missing? - Calling RND from assembly.

So, I want to something very simple. I want a random int from 1-3 on the ZX-81 - In basic it might look like (RND *3)+1 - In Assembler, My understanding is would do this: - LD HL,$03 - CALL $0BED - LD A,L Then A would have my number in it. I've tried other methods like - or others using R: LD A,R LD...