Search found 891 matches

by Sik
Sat Apr 19, 2008 6:01 am
Forum: Video Display Processor
Topic: VLBitmap2Scroll
Replies: 30
Views: 15171

Except those games I'm talking seem to take up the entire screen. Moreover, some of those even run at H32, and you know that there things are a lot slower... Oh, yeah, now I remember, the timings in the tech docs were about H32. And I think that for some stupid reason Sega took those timings and use...
by Sik
Sat Apr 19, 2008 5:42 am
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

If anyone has noticed, Kega automatically converts Game Genie codes into their hex ROM patch format. That is also done internally in Regen. Is there any emu where you have to do it manually? No as far as I know. The reason is simple: having separate engines for GG and PAR just overcomplicates every...
by Sik
Sat Apr 19, 2008 5:36 am
Forum: Video Display Processor
Topic: VLBitmap2Scroll
Replies: 30
Views: 15171

I would actually want to know from where did Sega get all those timings. Maybe they just took into account VBlank? Because this subroutine will continue sending data while in active scan. I mean, the Mega Drive isn't as slow as the tech docs say. Otherwise there are a lot of things game do that norm...
by Sik
Fri Apr 18, 2008 10:16 pm
Forum: Megadrive/Genesis
Topic: Mega Drive Research and Development Center
Replies: 27
Views: 13425

Page updated :P No new examples, but added tools and VideoLib 2. Also added Mega CD docs, so there you go :)
by Sik
Fri Apr 18, 2008 9:53 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

For PAR it's a lot simpler: AAAA:DD. Patches are always byte. So there you go :P

Not so sure how GG would be implemented in the SMS/GG through... I guess you can't do it :/
by Sik
Fri Apr 18, 2008 9:41 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

No, I didn't reply to my quote, I was remarking something I said before. It's done commonly in forums :/

Anybody has docs about the PAR? So to put a finish to all this.
by Sik
Fri Apr 18, 2008 9:16 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

It's like when people say that PAR codes must start with FF (meaning they only work in RAM). This isn't true. PAR codes work in any address. Same with Game Genie, but its implementation in the real hardware only allowed it to work on the ROM. In their most raw form, PAR and GG codes are just an add...
by Sik
Fri Apr 18, 2008 8:58 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

I would say, any address starting with a value from 00 to 3F is a ROM patch :P Unless the ROM is 64KB, that is XD
by Sik
Fri Apr 18, 2008 8:51 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

No... *sigh* Hey, c'mon, I've just asked a friend to make sure about this and I'm right, only the value of the data has to do with this, not the address :/

This is why Aamir has hard time implementing PAR, we're just getting him confused...
by Sik
Fri Apr 18, 2008 8:20 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

Absolutely don't know spanish, but I guess that Lowpass is 'Filtro pasa bajo' and overdrive is 'Saturación' (according to multi-language articles in Wikipedia). That's the problem, "filtro pasa bajo" has nothing to do with the real meaning. Through "saturación" seems like a good translation for ove...
by Sik
Fri Apr 18, 2008 7:06 pm
Forum: Video Display Processor
Topic: VLBitmap2Scroll
Replies: 30
Views: 15171

Hey, I know many of you made fake bitmap functions, in fact a lot of games have such a thing, I was wondering if it's useful taking into account the speed it has.
by Sik
Fri Apr 18, 2008 5:34 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

Sending Spanish :P How do you translate "Overdrive" in Spanish? It says "sobremarcha" in the dictionary, but honestly, it sounds horribly... Also I couldn't translate "lowpass" :/ I know it has to do with filtering low pitches, not no idea how it's called exactly in Spanish. So don't consider this t...
by Sik
Fri Apr 18, 2008 4:26 pm
Forum: Video Display Processor
Topic: VLBitmap2Scroll
Replies: 30
Views: 15171

Already saw that. And 10FPS (you) vs. 30FPS (me) *shot* Through seriously, it would be interesting to see how well does my subroutine perform in the real hardware (I can't test that). Also, I could make this subroutine even a bit faster (specially when you adapt it to a specific size), but I'm not s...
by Sik
Fri Apr 18, 2008 4:23 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

I guess it would be better if we leave ROM patching outside emulators and use separate patcher programs, right? Mmm, no. Hard patching in this case causes the original ROM file to be permanently altered from it's original state. Soft patching while the game is running in an emulator ensures the ori...
by Sik
Fri Apr 18, 2008 3:31 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 260139

I guess it would be better if we leave ROM patching outside emulators and use separate patcher programs, right?