Search found 400 matches

by ob1
Thu Dec 07, 2017 7:21 am
Forum: SGDK
Topic: Transparency on the same Plane, via Tiles
Replies: 8
Views: 274

Re: Transparency on the same Plane, via Tiles

In mathematics often you have an unique solution (or a group of) and an exact methodology to arrive to that conclusion. Frequently in life you don't have this situation, but you have to chose your own framework to reach to a misty success. (...) In most cases this is the clearly the wining solution...
by ob1
Mon Oct 23, 2017 7:20 am
Forum: Tools
Topic: Algorithm for splitting sprites
Replies: 66
Views: 2895

Re: Algorithm for splitting sprites

It's an algorithm to split big sprites. First it loads a 4bpp bmp file. If the image size is not 8-pixels aligned, it generates the 8-pixels aligned images, with an offset on width and height, up to 49 images (7 pixels width offset x 7 pixels height offset). Then, for each 8-pixels aligned image, it...
by ob1
Sun Oct 22, 2017 10:16 am
Forum: Tools
Topic: Algorithm for splitting sprites
Replies: 66
Views: 2895

Re: Algorithm for splitting sprites

All right. This may not be the BEST algorithm on earth to split sprites and so on. Especially, it doesn't optimize very well "holes" in sprites (an empty tile inside a sprite), but it manages to achieve some neat results. At least, good enough for me. https://www.dropbox.com/s/m3hctty54yox1mj/Street...
by ob1
Mon Oct 16, 2017 3:02 pm
Forum: Demos
Topic: Adventure of Lolo
Replies: 14
Views: 711

Re: Adventure of Lolo

SegaTim wrote:
Sun Oct 15, 2017 2:42 pm
To do only for itself. And 5-10 SMD fans.
Here's to the crazy ones, the misfits, the rebels...
by ob1
Wed Oct 11, 2017 8:38 am
Forum: Blabla
Topic: Make a wish / What if : Genesis
Replies: 20
Views: 573

Re: Make a wish / What if : Genesis

Stef wrote:
Tue Oct 10, 2017 2:57 pm
  • 4 palettes for sprite + 4 palettes for BG.
Neat. 8 palettes, and no need to modify background tile or sprite entries (still 2 bits for the palette number).
Stef wrote:
Tue Oct 10, 2017 2:57 pm
I think the rest of the hardware is already perfect :p
:)
by ob1
Tue Oct 10, 2017 12:36 pm
Forum: Blabla
Topic: Make a wish / What if : Genesis
Replies: 20
Views: 573

Make a wish / What if : Genesis

Reading the TF530 topic (http://gendev.spritesmind.net/forum/viewtopic.php?f=13&t=2721), and just for fun, I thought about a make-a-wish / what if for the Genny. If you could have added one feature, just one, single, feature, what would have it been ? A more-evolved CPU (think about 68010 cache mode...
by ob1
Fri Sep 15, 2017 12:41 pm
Forum: Blabla
Topic: Very Interested
Replies: 7
Views: 494

Re: Very Interested

Staffan wrote:
Tue Sep 12, 2017 7:35 am
The freemasons have at least 10 grades.
Well, it depends. Some lodges have nearly 33, some stick to 3.

Anyway, I'm with Sik on this one.
Write stuff that brings value to other members, THIS would be our reward ;)
by ob1
Sun Apr 02, 2017 3:23 pm
Forum: Megadrive/Genesis
Topic: The perfect "Hello World" example for new starters
Replies: 9
Views: 1031

Re: The perfect "Hello World" example for new starters

Thank you very much. I've always thought this was much needed ^^
by ob1
Sat Sep 24, 2016 4:47 am
Forum: Announcement
Topic: 10 years!!!
Replies: 7
Views: 1176

Re: 10 years!!!

Happy birthday to us ^^
Thank you Kan' ;)
by ob1
Tue Nov 03, 2015 11:11 pm
Forum: Tools
Topic: 32x ASM
Replies: 2
Views: 2814

Re: 32x ASM

I use the asmsh.exe to assemble my SH2 ASM files. Unfortunately, the .align directive padds with "0000" (Illegal instruction) and does not allows you to specify the padding value (.align alignment, value). So, I've written this macro : ALIGN_NOP macro .arepeat *%4/2 NOP .aendr endm Then, just call "...
by ob1
Sat Aug 22, 2015 6:04 am
Forum: Hardware
Topic: FPGA version
Replies: 22
Views: 3747

Of course, of course, I know. I just wanted to drop the specs. I was thinking about Kaneda line : ... i'll like to know if a FPGA (or a SoC) version of Genny is possible ? ... In this "Retro VGS", in what I thought was related, the ARM would be idle, while the FPGA would be the actual Genesis. Not e...
by ob1
Fri Aug 21, 2015 8:22 pm
Forum: Hardware
Topic: FPGA version
Replies: 22
Views: 3747

HAve you guys heard about retro VGS (http://www.retrovgs.com) ?
It's an ARM Cortex 8 (single core, 1GHz) coupled with a 49k EL FPGA.
by ob1
Fri Aug 07, 2015 7:28 am
Forum: Hardware
Topic: FPGA version
Replies: 22
Views: 3747

This thread makes perfect sense.
Especially when you see Analogue Interactive releasing a $500 - gorgeous - NES.
by ob1
Wed Aug 05, 2015 8:18 am
Forum: Hardware
Topic: FPGA version
Replies: 22
Views: 3747

@ob1: genny is genny, add something else and it's a mushroom like My first idea is to get a 'made-with-today-IC' genny, not a new genny + I'm very septic about people developping for a dedicated hardware ;) @hw: so the docs aren't enough, it was my question :( without a decap of all the sega chip, ...
by ob1
Wed Aug 05, 2015 7:40 am
Forum: Hardware
Topic: FPGA version
Replies: 22
Views: 3747

@ob1: genny is genny, add something else and it's a mushroom like My first idea is to get a 'made-with-today-IC' genny, not a new genny + I'm very septic about people developping for a dedicated hardware ;) @hw: so the docs aren't enough, it was my question :( without a decap of all the sega chip, ...