Search found 204 matches

by cero
Sun Feb 18, 2018 6:43 pm
Forum: Demos
Topic: Project C - WIP - Sega Genesis / Mega Drive
Replies: 23
Views: 765

Re: Project C - WIP - Sega Genesis / Mega Drive

Reminds me more than a bit of Duke Nukem 1.
by cero
Thu Feb 15, 2018 7:06 pm
Forum: Tools
Topic: Algorithm for splitting sprites
Replies: 69
Views: 3866

Re: Algorithm for splitting sprites

Instead of trying to come up with an algorithm, I thought I'd rather make it easy and fast for humans to do it. After all, humans tend to outdo most algos at things like this. WIP screenshot:
screenie.png
screenie.png (22.51 KiB) Viewed 50 times
by cero
Mon Feb 05, 2018 1:18 pm
Forum: Demos
Topic: Unnamed "ninja" game (Dev Diary thread)
Replies: 57
Views: 1064

Re: Unnamed "ninja" game (Dev Diary thread)

Retrostage.net is a great supplier. edit: Krikzz FlashKit works too of course, for that one you don't need to solder anything.
by cero
Mon Feb 05, 2018 1:16 pm
Forum: Demos
Topic: Example of point'n'click adventure engine (SecondBASIC).
Replies: 7
Views: 187

Re: Example of point'n'click adventure engine (SecondBASIC).

Please use some other service than Yandex Disk... After opening that link, it caused my browser to use 100% cpu and RAM was climbing above 4GB when I killed it. Probably a JS miner.
by cero
Tue Oct 17, 2017 6:32 pm
Forum: Controls
Topic: handle multi vs single press
Replies: 5
Views: 312

Re: handle multi vs single press

Most commercial games use lag, and maybe 30-40% revert the action.
by cero
Tue Oct 17, 2017 6:31 pm
Forum: Blabla
Topic: 3D printed cart....new paths ?
Replies: 5
Views: 513

Re: 3D printed cart....new paths ?

Resin printers produce high quality, and when properly handled the product isn't easy to break. Cost for a printer is a couple hundred.

If you need bigger runs, hire a professional 3d printer company like shapeways with your files.
by cero
Tue Oct 10, 2017 2:12 pm
Forum: Blabla
Topic: Make a wish / What if : Genesis
Replies: 21
Views: 938

Re: Make a wish / What if : Genesis

More palettes.
by cero
Sun Oct 08, 2017 7:49 am
Forum: SGDK
Topic: Code Crashes Emulator
Replies: 4
Views: 262

Re: Code Crashes Emulator

Read through the include files. They describe every available function in detail.
by cero
Sun Oct 08, 2017 7:48 am
Forum: Video Display Processor
Topic: Tectoy's weird VDP behavior
Replies: 10
Views: 714

Re: Tectoy's weird VDP behavior

As in wide piracy? Sure, but it doesn't tend to spread, and more sales are more sales. I don't count piracy as a loss for someone who wouldn't have bought in the first place either, that'd be free advertising.
by cero
Fri Oct 06, 2017 8:29 am
Forum: Video Display Processor
Topic: Tectoy's weird VDP behavior
Replies: 10
Views: 714

Re: Tectoy's weird VDP behavior

Distribution on the Brazilian market, since they are more common there.
by cero
Thu Oct 05, 2017 5:54 pm
Forum: SGDK
Topic: Horizontal interrupts to stretch image?
Replies: 10
Views: 578

Re: Horizontal interrupts to stretch image?

It is an advanced technique, there can't really be an example for every such thing, especially with the small community.
by cero
Thu Oct 05, 2017 8:18 am
Forum: Video Display Processor
Topic: Tectoy's weird VDP behavior
Replies: 10
Views: 714

Re: Tectoy's weird VDP behavior

the DMA'd data is transferred immediately, but not the data written manually
Exactly.

The program is not stuck, since the fade happened, and the program flow continued.
by cero
Thu Oct 05, 2017 8:08 am
Forum: SGDK
Topic: Horizontal interrupts to stretch image?
Replies: 10
Views: 578

Re: Horizontal interrupts to stretch image?

I guess you mean stretch vertically? Add a horizontal interrupt callback that sets the line scroll accordingly, and you can double every scanline, or do other such things.
by cero
Tue Oct 03, 2017 5:48 pm
Forum: Video Display Processor
Topic: Tectoy's weird VDP behavior
Replies: 10
Views: 714

Re: Tectoy's weird VDP behavior

Looking into "why then", there is a DMA update exactly 30 frames after the fade in (partial frame for animation, so it does not update everything). So it appears their clone buffers all cpu vram writes made during blanking, and only syncs them upon a sync point. I'd like to find out what things it c...
by cero
Tue Oct 03, 2017 5:31 pm
Forum: Video Display Processor
Topic: Tectoy's weird VDP behavior
Replies: 10
Views: 714

Tectoy's weird VDP behavior

Someone sent a video of a rom misbehaving on Tectoy's (latest) clone. It looks like DMA writes to VRAM apply correctly, but those done via the fifo/cpu interface have a massive delay. I can't find anything on this in google. Have any of you hit this? // fade out // disable rendering // dma new tiles...