Search found 158 matches
- Sat Jan 08, 2022 1:37 pm
- Forum: Megadrive/Genesis
- Topic: HBlank wrong hardware behaviour
- Replies: 1
- Views: 5404
Re: HBlank wrong hardware behaviour
First of all: emulators is a bad idea for testing such things. Trust just the real (original) hardware. Some of them still have problems with some features like horizontal interrupt. As far I know currently the most accurate emulator is BlastEm. Also to some extent Exodus is useful. Second: usually ...
- Tue Jan 04, 2022 11:53 am
- Forum: Megadrive/Genesis
- Topic: Horizontal Interruption Mystery
- Replies: 2
- Views: 8653
Re: Horizontal Interruption Mystery
Thanks for the interesting information!
- Mon Jan 03, 2022 6:24 pm
- Forum: Megadrive/Genesis
- Topic: Horizontal Interruption Mystery
- Replies: 2
- Views: 8653
Horizontal Interruption Mystery
After trying to dig a bit deeper into VDP's horizontal interruption I found an interesting thing: when you enable horizontal interruption in the reg #0 one interrupt is fired immediately after that and another interrupt happens as expected with the delay set in the reg #10. Does anyone have any idea...
- Mon Mar 22, 2021 9:57 am
- Forum: Demos
- Topic: Direct Color Demo using DMA
- Replies: 91
- Views: 130251
Re: Direct Color Demo using DMA
The time runs so fast. Just 15-17 years passed since then.
- Thu Dec 12, 2019 4:45 am
- Forum: Demos
- Topic: Mode 7 demo for Genesis/MD
- Replies: 63
- Views: 233696
Re: Mode 7 demo for Genesis/MD
Nice!
The "pixels" of the background are 2x2?
The "pixels" of the background are 2x2?
- Sun Dec 31, 2017 3:38 pm
- Forum: Announcement
- Topic: Future of SpritesMind
- Replies: 38
- Views: 56966
Re: Future of SpritesMind
Chilly Willy you are still with us!
And you are right as always.
And you are right as always.
- Sun Dec 24, 2017 11:14 pm
- Forum: Megadrive/Genesis
- Topic: DMA transfer to CRAM visible however the screen is off.
- Replies: 28
- Views: 26186
Re: DMA transfer to CRAM visible however the screen is off.
Actually I did intend to display an "almost" direct color image. And it's almost successful. It's possible to reload 48 colors per screen line thus you have 12 dynamic + 4 static colors per palette. But it doesn't help too much as long as you can't overlap those colors. Each 16 colors are bounded by...
- Sun Dec 24, 2017 10:48 pm
- Forum: Megadrive/Genesis
- Topic: DMA transfer to CRAM visible however the screen is off.
- Replies: 28
- Views: 26186
Re: DMA transfer to CRAM visible however the screen is off.
I guess I confused something and didn't understand you right.
- Sun Dec 24, 2017 10:06 pm
- Forum: Megadrive/Genesis
- Topic: DMA transfer to CRAM visible however the screen is off.
- Replies: 28
- Views: 26186
Re: DMA transfer to CRAM visible however the screen is off.
A VDP palette has 16 colors.
You can't use 56+8 colors.
If you make a heap of layers than you should transfer a lot of image index data for each layer.
VDP barely can transfer them for one single layer.
You can't use 56+8 colors.
If you make a heap of layers than you should transfer a lot of image index data for each layer.
VDP barely can transfer them for one single layer.
- Sun Dec 24, 2017 9:14 pm
- Forum: Announcement
- Topic: Bill paid
- Replies: 16
- Views: 28204
Re: Bill paid
how to pay for this forum?
- Mon Dec 18, 2017 6:39 pm
- Forum: Announcement
- Topic: Future of SpritesMind
- Replies: 38
- Views: 56966
Re: Future of SpritesMind
And what's the result?
To be or not to be?
To be or not to be?
- Thu Oct 12, 2017 9:07 am
- Forum: Megadrive/Genesis
- Topic: DMA transfer to CRAM visible however the screen is off.
- Replies: 28
- Views: 26186
Re: DMA transfer to CRAM visible however the screen is off.
Even he shows such zoomed images I can see clearly those damned columns. The most important to know is that it's possible to sync. But it doesn't help too much. Personally for me those wide columns destroy everything. I could ignore 2x1 sized pixels. But I can't ignore those wide columns. They just ...
- Thu Oct 12, 2017 8:16 am
- Forum: Megadrive/Genesis
- Topic: DMA transfer to CRAM visible however the screen is off.
- Replies: 28
- Views: 26186
Re: DMA transfer to CRAM visible however the screen is off.
An interesting feeling to know now how it's easy to sync VDP...
It's really strange they couldn't do that in 1993.
No magic. Just overload VDP and make a fine pause after that.
It's really strange they couldn't do that in 1993.
No magic. Just overload VDP and make a fine pause after that.
- Tue Feb 14, 2017 6:24 pm
- Forum: Megadrive/Genesis
- Topic: Please help decide on projection
- Replies: 12
- Views: 10274
Re: Please help decide on projection
The most interesting that human perception almost doesn't notice that feature. At least in the times when SC1 was very popular I personally had never noticed that. I felt a bit that something was wrong and strange but that's was a very slight feeling. The left fake-projection causes to me much more ...
- Tue Feb 14, 2017 5:48 pm
- Forum: Megadrive/Genesis
- Topic: Please help decide on projection
- Replies: 12
- Views: 10274
Re: Please help decide on projection
StarCraft 1 uses isometric visualization and "plain" 2D physics. For example if you command two the same units to go horizontally and vertically they will do that with the same speed. If the physics would be really isometric vertical moves would be twice slower for example as in another less popular...