Search found 2301 matches

by TmEE co.(TM)
Wed Apr 19, 2017 8:17 am
Forum: Megadrive/Genesis
Topic: Paprium and it's sound engine
Replies: 16
Views: 2793

Re: Paprium and it's sound engine

32X sends audio through cart to MD. AV in to AV out is just a passthrough. The loading is very easy to take care of. Something like this is able to drive even 2 ohm speakers without drop (assuming you use transistors with right current rating and don't go overboard with emmiter resistors) in level a...
by TmEE co.(TM)
Tue Apr 18, 2017 8:23 pm
Forum: Megadrive/Genesis
Topic: Paprium and it's sound engine
Replies: 16
Views: 2793

Re: Paprium and it's sound engine

MD2 VA0 and 1 have no 75ohm loading, VA3 and VA4 do. Nomads and Genesis3s do not connect the audio lines.
by TmEE co.(TM)
Tue Apr 18, 2017 12:19 pm
Forum: Sound
Topic: New Documentation: An authoritative reference on the YM2612
Replies: 834
Views: 314135

Re: New Documentation: An authoritative reference on the YM2612

You get clicks and whatnot on note ons, they didn't try to do anything about it whatsoever (easiest thing would have been allowing te select if phase generator is reset by note on or not) and having a wrong sample or two at a noteon wasn't gonna be a problem because it is gonna be masked by the clic...
by TmEE co.(TM)
Sun Apr 09, 2017 5:37 pm
Forum: Announcement
Topic: Future of SpritesMind
Replies: 38
Views: 4978

Re: Future of SpritesMind

I certainly don't want this place to disappear, all the information here will be lost then, and it is good info that you cannot find elsewhere. Information is why I keep visiting this place, and as far as information goes, I'll be sure to add more when I am done with gathering and formulating. Like ...
by TmEE co.(TM)
Mon Apr 03, 2017 7:21 am
Forum: Megadrive/Genesis
Topic: Sprite Data Mashed Up
Replies: 3
Views: 745

Re: Sprite Data Mashed Up

Link value isn't being advanced so you only see one sprite.
by TmEE co.(TM)
Sun Apr 02, 2017 7:23 pm
Forum: Sound
Topic: New Documentation: An authoritative reference on the YM2612
Replies: 834
Views: 314135

Re: New Documentation: An authoritative reference on the YM2612

I'd like to add that it is possible to write stuff to YM at sample rate (1 write every 144 YM clocks). I made YM run at same clock as Z80 and made code write one sample every 144 cycles and I got all writes intact. It is not possible to get perfect synchronity to YM like that in normal condition, wh...
by TmEE co.(TM)
Mon Feb 20, 2017 12:11 pm
Forum: Video Display Processor
Topic: Sprite disappearing on certain conditions ???
Replies: 7
Views: 1277

Re: Sprite disappearing on certain conditions ???

I did Y=0 instead of X=0 in my first MD game when I discovered this haha.
by TmEE co.(TM)
Wed Feb 15, 2017 9:39 pm
Forum: Video Display Processor
Topic: Sprite disappearing on certain conditions ???
Replies: 7
Views: 1277

Re: Sprite disappearing on certain conditions ???

EDIT: During rendering, sprite with X coord of 0 can be used to clip sprites with lower priority if it isn't the highest priority sprite on that line. There needs to be at least one higher priority sprite on that line first before clipping can be done, if that condition is satisfied then all lower p...
by TmEE co.(TM)
Wed Feb 15, 2017 3:15 am
Forum: Cartridge
Topic: sram noob?
Replies: 1
Views: 686

Re: sram noob?

There isn't any, you got to do manual address decode. Normally top 2MBytes are used as SRAM range while bottom 2 are ROM range. Games larger than 2MB have a banker that allows top 2MB to be ROM or SRAM depending on last value written to !TIME range. EDIT: Write strobes are !LWR and !UWR, pins B28 an...
by TmEE co.(TM)
Sat Jan 28, 2017 4:01 pm
Forum: Video Display Processor
Topic: Mode 4 VRAM Timing
Replies: 4
Views: 1073

Re: Mode 4 VRAM Timing

I snooped around on my SMS2 and it seems to behave same way. In addition blanking has same timings on TMS99xx VDPs on SMS, and possibly same function. TMS does 64 refreshes for DRAMs in blanking during first 256 pixels (and gives 64 access slots) and in remainder of the line there's 42 access slots....
by TmEE co.(TM)
Sat Jan 28, 2017 2:23 am
Forum: Video Display Processor
Topic: Megadrive video timings
Replies: 120
Views: 39241

Re: Megadrive video timings

http://www.tmeeco.eu/Fileden/

Look for same filesnames, I have full backup of all the files I have posted in there. Exactly as my signature here (and everywhere else) says :P
by TmEE co.(TM)
Thu Jan 26, 2017 11:31 pm
Forum: Megadrive/Genesis
Topic: Genesis/MD test ROMs
Replies: 10
Views: 2588

Re: Genesis/MD test ROMs

Look for Nemesis' post in the VDP threads, there's one post with a really big VDP test ROM, there's FIFO in the filename IIRC.
by TmEE co.(TM)
Wed Nov 02, 2016 4:31 pm
Forum: Video Display Processor
Topic: DMA failure on different consoles.
Replies: 12
Views: 1770

Re: DMA failure on different consoles.

ED requires 128KB alignment to work properly, or at least used to require the alignment.
by TmEE co.(TM)
Tue Sep 06, 2016 5:07 pm
Forum: Megadrive/Genesis
Topic: How to build a self-running demo?
Replies: 11
Views: 1803

Re: How to build a self-running demo?

Start your game, record all the input and use that as input for the demo sessions.

EDIT: You can save the keypresse is SRAM and use the SRM file from emulator to get the data to include in your ROM.
by TmEE co.(TM)
Fri Sep 02, 2016 10:34 am
Forum: Announcement
Topic: 10 years!!!
Replies: 7
Views: 1610

Re: 10 years!!!

...wow ! Whole decade ! Häppy birthdéy ~

In december I've been here for a decade also haha