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Condition red 
10th-Apr-2013 05:07 pm
Spot differences between two pictures:

The first one was taken on system with Catalyst 13.1 WHQL and the second one on 13.2 beta. Day wasted on fixing this particular "bug". And before someone points out "This is what you get for using beta drivers" - there is a reason I need to be on 13.2 or newer.
14th-Apr-2013 02:02 am (UTC) - Cool, but I have some issue to report about Makaron
Hello, I'm a Dreamcast fan and I know your site by Makaron emulator. Makaron is a cool emulator and provides unique capability running WinCE based games, it is an excellent job and I want to send my acknowledgement to the you, Deunan.

However, Makaron still has some compatibility issue with certain games, such as Super Robot War Alpha for DC (SRW for short). I have been looking forward to a great update of Makaron that can fix this issue, but unfortunately later versions seem to have even more problems running SRW:

Makaron T11.2 frequently crashes with SRW, but plays BGM and voice perfectly;
Makaron EX3.0 has less crashing running SRW, but BGM of SRW deteriorates, music is not consecutive;
Makaron EX4.0 4.01 4.02 and 4.1 have pretty GUI and rich options, but... when setting SH4 Mode to DynaRec it frequently crashes; when setting SH4 Mode to Interpreter it runs very very slow (about 1/2 fps as DynaRec mode); when setting SH4 Mode to FashInt it runs even slower than Interpreter Mode (MEX 4.1), or stuckes at WinCE logo(MEX 4.0x).

Attached are representative error reports with different Makaron versions, hope this information could help improving Makaron to a perfect DC Emu. And I would like to provide SRW image if necessary. If figures are not available, just let me know.

Finally, many thanks to you again, Makaron authors (and contributors if any), I can't wait to hear reponse from you.








MEX4.x_FastInt, stucked

MEX4.x_Interpreter2, very slow

MEX4.x_Interpreter1, very slow
16th-Apr-2013 06:27 pm (UTC) - Re: Cool, but I have some issue to report about Makaron
First I'd like to state that Makaron EX is not something I did. It's a repack/hacked version made by some fans. I can't and won't comment on any issues you might have with it. I don't support it.

Second, and this is not explained anywhere, WinCE compatibility is actually highest in recompiler mode. Slow interpreter should work too but as you realize it's very slow. Fast is just something I use for testing, it's using interpreter core but in ways that break compatibility with WinCE games. So it just won't work at all in these case.

T11/2 is quite ancient version, there should be T12/5 or even T12/6 out there for Dreamcast games. Try that one, see if it works better with SRWA.
20th-Apr-2013 08:47 am (UTC) - DIMM Tools repost
Hi Deunan,

I'm seriously impressed by your skills.
Please could you re-upload your DIMM tools? The link in your earlier post (from 30th-Apr-2010) is down and Google isn't being friendly with finding an alternative source.


Edited at 2013-04-20 08:49 am (UTC)
25th-Apr-2013 01:31 pm (UTC) - New Makaron???
Deunan I first want to say that I admire his work, according wanted to know if you will continues Makaron, why we fan Dreancast not abandon him! Google Translation.
4th-May-2013 12:38 am (UTC) - GD emu
how much is left to complete your project GD-ROM emulator?

Edited at 2013-05-04 12:40 am (UTC)
15th-May-2013 09:50 pm (UTC) - News?
Any news from the gd-rom emulation?
22nd-May-2013 09:55 am (UTC) - Re: News?
Right now I'm having some trouble sourcing connectors - I don't think having to solder some 40 to 50 wires would count as easy to install.

But good news is I might be getting some soon, so that I can finally test the signal integrity issues on close to final hardware.
22nd-May-2013 11:41 pm (UTC) - Connectors
if this help
DC mobo is Molex part 53408-0579
DC GD Drive is Molex part 52584-0579

i like this project a lot thanks for the update.
Can you post a demo video with the alpha state of the emulator in action? (fun request :P)
23rd-May-2013 09:31 am (UTC) - Re: Connectors
Actually the connector on the mainboard is pretty tall so 526020579 should be a better fit I think. We'll see once I get my hands on it anyway :)

There used to be 2 short vidoes but these are now taken down. I wasn't the one who uploaded them, I just gave those to a handful of people I know. It wasn't really all that much, 2 games booting, SF3A and I don't even remember the other one (Skies of Arcadia?). SF3A was chosen as it does a lot of sound/music loading between demo stages and you could see how the prototype is just a tad too slow to keep up in some places. Since the new project has easily 2-3 times the transfer rates even with cheap SD cards I expect this to be fixed now.

Anyway, the problem right now is the signals on GD-DC link are pretty weak and don't work well with cables. You start pushing stuff through the data bus and the control lines can glitch. It's just for one clock cycle but enough to confuse FPGA. I don't see any termination or filters on original GD so it should be possible to overcome this by just shortening the link length and using proper connectors with ground lines separating the important stuff. If not I have devised a clever workaround in FPGA code but I'd rather keep it simple if possible. Again, I need the connectors to test that in first place.

Sourcing these connectors to EU is difficult unless you're prepared to order thousands and 50$ of shipping costs is not a problem for you. Not exactly what I'm aiming at for the moment. But as I said there is a light in the tunnel right now.
16th-Jun-2013 12:08 am (UTC) - GD Emulation
Is possible to emulate the laser lens only, with the original GD board?
20th-Jun-2013 11:32 pm (UTC) - Re: GD Emulation
Possible? Yes. Easy or cost-effective? Not by a long shot.
22nd-Jun-2013 12:59 am (UTC) - Re: GD Emulation
can be easy and be cost-effective.
Is easier to emulate the signals from the laser lens or the custom ICs from SEGA and the buses of GD-Board <-> SH4 ?

Edited at 2013-06-22 01:03 am (UTC)
25th-Jun-2013 08:12 pm (UTC) - Re: GD Emulation
You haven't properly analyzed the problem. I'm going to give you a few hints:
- for the laser head to produce a bitstream you need to rotate the disc
- rotational speed and head position, along with lens position, decide what you'll get
- GD-ROMs have two areas of different bit density
- bitstream is not the data itself, it's EFM encoded and distributed into separate frames

Saying it's easier to emulate the laser bitstream is like trying to build a car with just the engine. What about steering, brakes, wheels, seats, etc?
13th-Jul-2013 03:07 am (UTC) - Re: GD Emulation
ok. i retreat.

your board emulates the opening/closing GD-ROM deck?
17th-Jul-2013 11:27 pm (UTC) - Re: GD Emulation
18th-Jul-2013 07:05 pm (UTC) - Re: GD Emulation
Any news on the progress?
25th-May-2013 01:15 pm (UTC) - solution??
There is a solution to the errors (Date 1006 and 1002) - Sega Rally 2 and Tomb Raider Chronicles.
6th-Sep-2013 10:55 pm (UTC) - Re: solution??
Just curious for any update since july on the GD-emu project? I'm on the edge of my seat to buy. Seriously I'll gladly spend $150 for one of these units, and might even buy more than one even.
10th-Sep-2013 12:21 am (UTC) - Gd-Emu
GD-emu is done? and the prince of that?
30th-Oct-2013 02:33 pm (UTC) - linux
Hi, after reading the makaron readme.txt (where you talk about linux and freebsd compatbility) i'm wondering if you could release the good old makaron for linux?
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