'Undocumented' nullDC features

[drkIIRaziel]

As the release was realy tiring to make , there are a few things that are included in it , but not documented.Please note that these are 'not supported features' and may get removed/replaced in feature versions or even not work at all .Try em on your own risk ...

nullDC.cfg file :
There are varius settings that are not exposed in the interface.That includes AntiAlias & resolution settings for the pvr plugins.To restore default settings , just delete the config file .

Command line params (These are mostly usefull to developers):

-nosse2 , -nosse3 , -nossse3
These disable the use of some instruction sets (sse2/3/S3).(Not realy usefull)

-serial "file here"
Redirects the serial output to the given file.It can also redirect it to a COM port (-serial \\.\COM1).The file MUST exist before loading nullDC.

-slave <pipe1 handle> <pipe2 handle>
Writes serial output to pipe1 , reads from pipe2.The handles have to be created properly first (ie : -slave 912 913).It can be used to redirect the serial IO to another application

.gdi files:

The ImageReader plugin supports a format to load gdrom dumps.
here's the structure :
Entry Count
Track StartSector ctrl SectorSize File Offset
....
Track : track number
StartSector : start sector on the gdrom to map the file
ctrl : 4 -> data , 0 -> audio
SectorSize :Sector size for the data in the file , 2048 , 2352 & a few others are supported.If this is set to 0 the file is considered 'missing'
File : file to read the data from
Offset : byte offset into file to read the data from. Can be both negative and positive

The first 2 entrys are for the low density area (tracks 1 & 2,session 1)
The rest of em are on the hi density area (tracks 3+ , session 2)

Here are a few examples :

Tony Hawks Pro Skater 1:

5
1 0 0 0 none 0
2 0 0 0 none 0
3 45000 4 2352 45000to63139.bin -8
4 63288 0 0 none 0
5 69313 4 2352 69313to549150.bin -8

the 1,2 and 4 tracks are missing from my dump , the -8 is to offset the files a bit (dumped using cdrwin so the format is a bit different)

Visual Park

13
1 0 0 0 none 0
2 0 0 0 none 0
3 45000 4 2048 track3.iso 0
4 445516 0 0 track04.raw 0
5 449104 0 0 track05.raw 0
6 453213 0 0 track06.raw 0
7 455855 0 0 track07.raw 0
8 469617 0 0 track08.raw 0
9 483437 0 0 track09.raw 0
10 486080 0 0 track10.raw 0
11 491965 0 0 track11.raw 0
12 543479 0 0 track12.raw 0
13 547889 4 2048 track13.iso 0

tracks 1,2,4,5,6,7,8,9,10,11,12 are missing here (audio tracks -- they just get replaced by silence)


Thats it , i hope that helps.

[SiZiOUS]

First thanks for nullDC.

I would like to know if it's possible to dump the whole sh4 memory to a file ? Thanks.

[dreampeppers99]

thanks for the emulator
and thanks for the "tips" undocumented.

[Darkfalz]

I've made a GDI Maker, check out the thread below.

[richardmendoza]

hey this really good,i am working too with cfg is very Important, i try to say that pcsx2 need a .cfg file But they told me that it makes no sense, thanks to you for this

[Jakeofalltrades]

Doesn't pcsx2 have an advanced configuration UI built into the emulator?

[richardmendoza]

hey with this undocumented i will get more fps(speed)???in my cfg file in nulldc i not have seen this, tWhere I have to do this inside the cfg?

[Darkfalz]

I figured I'd post my tool in this sticky. It makes a .gdi file out of a folder containing a Dreamrip rip (ie. track03.iso track0x.raw track22.iso).

http://forums.ngemu.com/attachment.p...7&d=1192583334

[ratero]

is there a "undocumented way" to set vertical sync??

[NamesSolidSnake]

Uh, what do you mean by vertical sync?

[El_Faka!!!]

Ratero I didn't find that option either, but the tearing disappeared (I bet you're asking for vsync//triple buffering because of this) when I set the refresh rate to the one I'm using currently in my monitor. Try it

[row]

In the Undocumented nullDC features it is mentioned that Nulldc includes AntiAlias & resolution settings for the pvr plugins.

Now, I opened the config and found how to change resolution, but my question is how do I apply anti-aliasing?

[t3g]

Originally Posted by row

Now, I opened the config and found how to change resolution, but my question is how do I apply anti-aliasing?

I'm not 100% sure, but in [drkpvr] section, wouldn't it be the two lines :

Enhancements.MultiSampleCount=0
Enhancements.MultiSampleQuality=0

Change the number from 0 to 4 and see the difference. I don't think it will affect 2D games, but for 3D games like Sonic Adventure 2, it's easy to spot.

I made 2 screenshots, one without AA, the second with a value of 4 in both lines (a value of 16 reverts to no AA, I don't know if it's the code in nullDC or if it's my card, but I think 7900GS is capable of 16x AA, even though it would be dog slow).

0x AA:

4x AA :