Search found 478 matches
- Sun Apr 09, 2017 2:45 pm
- Forum: Announcement
- Topic: Future of SpritesMind
- Replies: 38
- Views: 48544
Re: Future of SpritesMind
In short: noone owe you anything. Nail it! Hold breathe, read it whole. Some recents events (life and cat fighting) made me think about SpritesMind, and I should make it clear for you. It's very good, that you're reviewing your world view. Last month, I closed it ... 1 week. And you were "redicilous...
- Wed Mar 29, 2017 4:59 pm
- Forum: Megadrive/Genesis
- Topic: Undefined behavior for ABCD and SBCD
- Replies: 36
- Views: 41438
Re: Undefined behavior for ABCD and SBCD
Question is what means element with thick line.Mask of Destiny wrote:IIRC, that's VCC.flamewing wrote:I am not sure what the thick line means on the top image, though.
Thanks for the test ROM by the way. Very helpful in fixing the remaining issues in BlastEm's sbcd implementation.
- Tue Mar 21, 2017 12:58 pm
- Forum: Megadrive/Genesis
- Topic: Undefined behavior for ABCD and SBCD
- Replies: 36
- Views: 41438
Re: Undefined behavior for ABCD and SBCD
Ah, yes, because looking at completely unlabelled transistor-level schematics and figuring out what each transistor is doing, and what signal each wire corresponds to, is extremely easy. Yes. For me, who is not familiar with transistor stuff is not easy to figure out what it is: http://i.imgur.com/...
- Tue Mar 21, 2017 10:20 am
- Forum: Megadrive/Genesis
- Topic: Undefined behavior for ABCD and SBCD
- Replies: 36
- Views: 41438
Re: Undefined behavior for ABCD and SBCD
I can easily post the source for mine; but since it was done in pure assembly with a binary table generated by the above C code I posted (for speed reasons), there is little benefit. Okay. Speed reasons hmm. I will check out your BCD implementation to see how accurate it is; but you did ask "Someon...
- Mon Mar 20, 2017 5:48 pm
- Forum: Megadrive/Genesis
- Topic: Undefined behavior for ABCD and SBCD
- Replies: 36
- Views: 41438
- Tue Feb 21, 2017 8:03 pm
- Forum: Megadrive/Genesis
- Topic: Write Genesis program to test YM2612
- Replies: 5
- Views: 4121
Re: Write Genesis program to test YM2612
operator output is too fast to figure out what did you read.
- Tue Feb 21, 2017 5:55 am
- Forum: Megadrive/Genesis
- Topic: Write Genesis program to test YM2612
- Replies: 5
- Views: 4121
Re: Write Genesis program to test YM2612
Problem is that you can't read anything from YM2612 except status.
Sauren have found debug stuff, but I doubt it's usable from MD.
Sauren have found debug stuff, but I doubt it's usable from MD.
- Tue Feb 14, 2017 6:00 pm
- Forum: Megadrive/Genesis
- Topic: Please help decide on projection
- Replies: 12
- Views: 9643
Re: Please help decide on projection
Ah, now I got it. Yeah, physics is 2D indeed.greatkreator wrote:StarCraft 1 uses isometric visualization and "plain" 2D physics.
(while trying to check starcraft, found this awesomeness https://www.twitch.tv/certicky )
- Tue Feb 14, 2017 5:05 pm
- Forum: Megadrive/Genesis
- Topic: Please help decide on projection
- Replies: 12
- Views: 9643
Re: Please help decide on projection
Really? Tell me how to enable other one? Starcraft I guess using same as everywhere starting from Rock 'n' Roll Racing: isometry (X-COM).greatkreator wrote:For example StarCraft 1 uses such a scheme.
- Tue Feb 14, 2017 5:02 pm
- Forum: Megadrive/Genesis
- Topic: 32-bit integer to string routine
- Replies: 10
- Views: 7363
Re: 32-bit integer to string routine
It's not obvious that abcd stuff is faster than division.
For better understanding it would be nice to have division code too.
And, both should have timings listed I guess.
From my opinion, easier & faster just subtract 36 times.
But we will see only after comparing.
For better understanding it would be nice to have division code too.
And, both should have timings listed I guess.
From my opinion, easier & faster just subtract 36 times.
But we will see only after comparing.
- Sat Feb 11, 2017 3:12 pm
- Forum: Megadrive/Genesis
- Topic: Please help decide on projection
- Replies: 12
- Views: 9643
Re: Please help decide on projection
left one looks wierd because it's not Orthographic projection.
I have no idea how to make good Orthographic projection with camera set "more top" than right image. So, it's up to you.
I have no idea how to make good Orthographic projection with camera set "more top" than right image. So, it's up to you.
- Fri Jan 27, 2017 7:51 pm
- Forum: Megadrive/Genesis
- Topic: Genesis/MD test ROMs
- Replies: 10
- Views: 12169
Re: Genesis/MD test ROMs
Have you found that two packs? Or, I have to track it down?
Ok, one of them here: https://bitbucket.org/eke/genesis-plus- ... d_test.zip
Oh, and VDP_TEST.zip is inside.
There is also on smspower I guess, some test ROMs.
Ok, one of them here: https://bitbucket.org/eke/genesis-plus- ... d_test.zip
Oh, and VDP_TEST.zip is inside.
There is also on smspower I guess, some test ROMs.
- Wed Jan 25, 2017 7:41 pm
- Forum: Megadrive/Genesis
- Topic: Genesis/MD test ROMs
- Replies: 10
- Views: 12169
Re: Genesis/MD test ROMs
I've seen somewhere bunch of Genesis Emulator test ROMs, but I don't remember where it was. I thought that it was in genplus-gx repo, but I don't see it there. I'll try to google stuff. But, probably it's not what you looking for. Edit: it was indeed in genplus-gx repo. https://www.reddit.com/r/emul...
- Sun Dec 25, 2016 1:53 pm
- Forum: Video Display Processor
- Topic: MD VDP color levels
- Replies: 10
- Views: 22007
Re: MD VDP color levels
You can calculate deviation. It's really small.
Checkout this thread: viewtopic.php?f=22&t=1389
Checkout this thread: viewtopic.php?f=22&t=1389
- Mon Oct 10, 2016 7:47 pm
- Forum: Tools
- Topic: 68000 instruction timing from source?
- Replies: 14
- Views: 15544
Re: 68000 instruction timing from source?
yes it would, so? (in case if you testing that bit)