SpritesMind.Net

Yo TMEE. If your demo is just VBL timed, you should rather use VDP's Vflag... For that just wait for Vdrawing and loop until Vnothing happen :) I was using VBL to increment a counter before, but then i found more handy to go for Vflag watching, it is so more stable. As for the 256KB extend... well.....

Do you want an oldskool-style demo where you merely go from one part to the other in a predetermined order Yeah, i think it could be good... i mean, one impressive screen per demo only... need to be rythmed by the same sound track i think... Like you, i wont use interupts (i was too shocked by sega...

"Emus support sram at addresses $200000 to $3FFFFFF, but only if you have written 1 to a reg in MD"... I see, long time ago, i tried to create a sram of 1MB and it failed... 16KB worked, so :) "music?" You want to code the music part sergeeo? I'll enter too. It will be hard to make my plan fit in 25...

Yeah, nice idea... It would require to leave the 4 first word as rom (to have the power on /reset vector running from rom). However, i checked, emulators don't support so big SRAM... Or maybe i did something wrong. As for basicegazorg and sgcc, maybe padding the rom header to the correct rom locatio...

Pascal> yeah, good thema idea.. It must be a demo rom :) I mean, everybody do a little screen with impressive things and we put all together :). "Great idea, but I didn't quite understand how you put all the demos together and switch between them. " For exemple, if each demo have a limit of 256KB, w...

Hi, We started this topic long time ago at Devega board. Like many others, I found the idea of the demo very interesting :) However! I think we should use a rom header ( :arrow: that hold the music engine & track) of, lets say 256KB. :arrow: This rom header can reroot hint and vint using vectors in ...

That's a good idea
I opened a topic in megadrive section

I myself just display the hexa :) héhé :D it is easier funnier and super faster if it applies to your game concept though ;) I have two tricks: the first one is while counting -> i do one variable per digit : digit1 digit10 digit100 digit1000 then i do digit1++; if(digit1>9){digit1=0;digit10++;if(di...

Exactly

ho yeah
Happy new year, lot of luck and joy

2007 is the last year before the "final year of the MD"... we absolutely need to release great things

Interesting, yeah
Héhé, lot of time left Fine

I'll offer one megacart to the one that will be in the top3 with genesis entry
(The first one, héhé, don't expect we have three genesis entries in the top 3)

Yo, Usualy, any write to CRAM during retrace create a glitch (a pixel of the background color) on the TV... Using DMA really remove all glitches? I thought about making a tool/engine that reload two colors each line with precise values according to a specialy designed background... For a fight game,...

"Guess that's what we mean by "geek". "
Tss tss Genny programming, geek? tss tss

"and unrolling loop help a lot "
I see, i only execute 8 instructions in my roll... maybe i should unroll more, thx

Ho, 90° method works with bytes if you work into RAM and then RAM>VRAM using simple DMA. Stef, I thought a lot about what you said to me "big bit shifting takes lot of 68K cycles", so i investigated and found : One 8 bit shift is slower than 2bytes writting (68K reg to ram). Bah, it just increased b...

Apparently, the cartridge run on MegaLD systems too...
Thx for Darkwolf for reporting this.

I'm found this very strange assuming the hardware difference.

Now need check on Xeye, Wondermega and Aiwa systems.