Search found 939 matches

by Sik
Sat Apr 26, 2008 7:57 pm
Forum: Blabla
Topic: Yamaha internal waveform info
Replies: 17
Views: 18814

The different peaks are enough to make it sound more aliased. Those sudden changes make it sound like noisy, in fact sudden changes are the reason for clicks in sounds.

And I think you should take a photo of the oscilloscope output :P
by Sik
Sat Apr 26, 2008 3:39 pm
Forum: Blabla
Topic: Yamaha internal waveform info
Replies: 17
Views: 18814

Is it me or the MD1 fails to do the peaks properly? Also it seems to have a lower volume.
by Sik
Fri Apr 25, 2008 5:25 pm
Forum: Cartridge
Topic: Can I recycle Sega Genny Carts and make my own games?
Replies: 22
Views: 31594

Wait a second, what's it's real size? "The M27C160 is a 16 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large data or program storage and is organised as either 2 Mbit words of 8 bit or 1 Mbit ...
by Sik
Thu Apr 24, 2008 11:22 pm
Forum: Megadrive/Genesis
Topic: Mega Drive Research and Development Center
Replies: 27
Views: 23104

*double post for update*

Hey, can you suggest ideas for the examples? Remember, examples must be simple subroutines/functions that do something specific. They must be simple through that doesn't mean slow, look at the code I made for example :)

Feel free to suggest ideas for examples :)
by Sik
Thu Apr 24, 2008 5:26 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 764050

-Sonic 2's two player mode flickers, as where Gens and Kega don't. I didn't check 0.85 yet, but as far as I know, the real hardware does flicker, showing even lines in one frame and odd lines in the next. Fusion and Gens don't emulate that properly, and it annoys me honestly. -1:1 pixel in interlac...
by Sik
Wed Apr 23, 2008 10:16 pm
Forum: Mega/SegaCD
Topic: Interest in Dynarec?
Replies: 14
Views: 15733

Maybe somebody should try the DS? Anyways, watch out, there's a SMS/GG emulator for GBA. Runs at about 45 FPS in average, so I guess somebody may want to give a try for a Mega Drive emulator in the DS. Or a SMS/GG one because the resolution in the DS matches the SMS one and you don't have to stretch...
by Sik
Wed Apr 23, 2008 10:13 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 764050

Still have a problem, when "Low pass filter" is enabled. WAV dump shows this: http://img102.imageshack.us/img102/3474/ssssuf6.th.jpg It seem to just "inverted" samples, or something more then that... Inverted samples would be the same but flipped vertically. Sounds more like swapped endianness :P
by Sik
Wed Apr 23, 2008 5:02 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 764050

Yup, Win9x need the Unicode support to be installed separately. Well, Win95. Not sure about Win98, maybe it comes built-in. MSDN always makes special remarks about Unicode versions of the functions for non-NT systems.
by Sik
Wed Apr 23, 2008 1:58 am
Forum: Tools
Topic: MD tracker 0.3 ALPHA
Replies: 70
Views: 60753

Tell that to the circuitery that makes the analog signal out of it :P None of SMD sound chips has analog circuits, they all completely digital except the DAC (same with most of sound chips at all). Then how do you get sound? I mean, somehow the sound must be converted as an analog signal in the end...
by Sik
Tue Apr 22, 2008 5:37 pm
Forum: Tools
Topic: MD tracker 0.3 ALPHA
Replies: 70
Views: 60753

I know, I know, but see, the circuitery used for the octaves may not be perfect, hence small variations may occur. Probably frequency values would have to be changed a bit (not much, I highly doubt the difference between two octaves would be > 10). Frequency for note of some octave is a exactly div...
by Sik
Tue Apr 22, 2008 5:23 pm
Forum: Regen
Topic: Old Regen pages
Replies: 547
Views: 764050

Absolutely not. I hate hacks. If one still doesn' beleive I can even tell the solution too. The 68k instruction dbf needs to execute 14 cycles instead of 12. There you go :). So it's technically the game's fault? Ugh... I guess this also remarks the timings for the YM2612, right? Anyways, I underst...
by Sik
Tue Apr 22, 2008 5:18 pm
Forum: Video Display Processor
Topic: VLBitmap2Scroll
Replies: 30
Views: 27759

Except for a little detail... If I'm not mistaken, bitmaps are stored flipped vertically, that is, the bottom row first, the top row last. Exactly the opposite as hardware. No idea why this happens. OpenGL? (normally OpenGL has the coordinate system set for that) Anyways, now the code works... throu...
by Sik
Tue Apr 22, 2008 5:52 am
Forum: Tools
Topic: MD tracker 0.3 ALPHA
Replies: 70
Views: 60753

I know, I know, but see, the circuitery used for the octaves may not be perfect, hence small variations may occur. Probably frequency values would have to be changed a bit (not much, I highly doubt the difference between two octaves would be > 10).
by Sik
Tue Apr 22, 2008 5:51 am
Forum: Video Display Processor
Topic: VLBitmap2Scroll
Replies: 30
Views: 27759

Didn't I replace that last lsl? >_> And by the way, trying tomorrow :P
by Sik
Tue Apr 22, 2008 3:26 am
Forum: Tools
Topic: MD tracker 0.3 ALPHA
Replies: 70
Views: 60753

That document explicitly say that those values are approximations made by the guy who wrote that, and are not the exact values. And probably it's trial and error, I wouldn't be surprised if the frequencies to be used change depending on the octave.