Search found 177 matches

by notaz
Wed Feb 13, 2013 12:39 pm
Forum: Hardware
Topic: Service manuals of various Sega machines !
Replies: 76
Views: 33076

Good job, thanks omp!
by notaz
Wed Jan 16, 2013 5:00 pm
Forum: Hardware
Topic: Service manuals of various Sega machines !
Replies: 76
Views: 33076

Hmh, 2 different bidders on 32X manual, a bit worrying.
by notaz
Tue Jan 15, 2013 12:06 pm
Forum: Hardware
Topic: Service manuals of various Sega machines !
Replies: 76
Views: 33076

I hope we're not chipping in to different bidders... I just chipped in $100 to omp for the 32X manual... and anything else if there's extra after the 32X manual. I used the chipin link over at sega16 omp set up for the 16 bit manuals. Hmh I interpretered last omp's post hare: http://www.smspower.or...
by notaz
Mon Jan 14, 2013 5:39 pm
Forum: Hardware
Topic: Service manuals of various Sega machines !
Replies: 76
Views: 33076

Sent $50 for 32x manual.
by notaz
Wed Jan 09, 2013 12:07 pm
Forum: Hardware
Topic: 315-5433 pinouts?
Replies: 8
Views: 3514

I see you have some photos of it, you can crop it from here for another a bit less blurry version:
http://notaz.gp2x.de/img/hw/megadrive_model1.jpg
by notaz
Mon Oct 15, 2012 2:56 pm
Forum: Regen
Topic: Pier solar in Regen
Replies: 32
Views: 17586

The ROM is NOT original. It has been modified to hell to get the game playable AT ALL. And the EMULATOR is modified aswell. With tons of workarounds for ONE GAME you MODIFY the original GOAL of an emulator. It's like N64 emulation! It sucks! That ROM is a proper dump, I've compared it to my own dum...
by notaz
Fri Oct 12, 2012 7:58 pm
Forum: SGDK
Topic: Weird problem with SGDK on REAL hardware
Replies: 31
Views: 6517

The function to copy data from RAM to VRAM (copied from Shiru) was randomly causing the problems The function you removed looks ok (and also does DMA), the only real difference this causes is that z80 bus is no longer requested during the DMA transfer. Is z80 running valid code when this is called?...
by notaz
Fri Oct 12, 2012 4:10 pm
Forum: SGDK
Topic: Weird problem with SGDK on REAL hardware
Replies: 31
Views: 6517

Well I've just checked what happens to angrybirds - it somehow ends up executing Z80 code on ROM window, which trips out drz80 (the z80 asm core). So maybe SGDK starts Z80 without loading Z80 program first, or something like that, haven't looked in detail. Off topic: can Z80 run from the ROM window ...
by notaz
Fri Oct 12, 2012 3:38 pm
Forum: Super 32X
Topic: Some 32X cart port questions
Replies: 19
Views: 7269

IIRC there is also bunch of registers in the SH2s themselves that affect how SH2s access the memory and the timings. Messing with those might affect all this too.
by notaz
Fri Oct 12, 2012 3:24 pm
Forum: SGDK
Topic: Weird problem with SGDK on REAL hardware
Replies: 31
Views: 6517

Re: Weird problem with SGDK on REAL hardware

We have only found one emulator the game doesn't work with: Picodrive 1.80 (used on a OpenPandora, I suppose Wiz/Caanoo versions behave the same). Check /tmp/pndrun* file after running on pandora, it might have some information about what happens to the emu. In general it sounds like an interesting...
by notaz
Tue Sep 11, 2012 2:07 pm
Forum: Video Display Processor
Topic: Plane remapping
Replies: 8
Views: 2866

Actually you don't need a school to learn C/asm or programming in general, you learn it by doing it. The key here is to be active in learning yourself and be persistent, not expect someone to teach you.
by notaz
Wed Aug 29, 2012 3:47 pm
Forum: Demos
Topic: DDR like demo
Replies: 75
Views: 14594

TmEE co.(TM) wrote:SRAM is always in $200001...$20FFFF range.
Not really, there are a few licensed ones that are not, I think they were some sports games that do it at $30xxxx, somebody like Eke probably remembers better.
by notaz
Wed Jul 18, 2012 10:37 am
Forum: Cartridge
Topic: Super Mario 64 for Genesis - dump quest (need pics of pcb!)
Replies: 36
Views: 24747

I've tried to dump the cart long ago... It uses some kind of banking, there's only 512KB seen on MD side due to lack of more address lines on the cart I had, there's also some special strobes connected. I did not document anything and I never got a full dump, I did not try hard either. Where did yo...
by notaz
Thu Jun 14, 2012 12:58 pm
Forum: Mega/SegaCD
Topic: Scaling hardware?
Replies: 84
Views: 29865

That's some useful notes, thanks Eke.

So you managed to avoid lockstepping for all those games? If so that's pretty cool, as some of those supposedly locktep-needing games were not fast enough to be pleasantly playable on GP2X/PSP on PicoDrive, because lockstep is expensive.
by notaz
Fri Jun 01, 2012 12:28 pm
Forum: Mega/SegaCD
Topic: Scaling hardware?
Replies: 84
Views: 29865

Yeah lots of timing sensitive things in CD emulation, I spent good deal of time on this too, and it's still mostly wrong all around, just enough to get games running. Maybe I should get back to this someday.. Is Radical Rex working for you, Eke? Never got that one running (neither did Gens at that t...