nullDC 1.0.0 beta 1.6 [07/11/2007 update]

[Tree Dude]

Can you post full system specs? If you only have 256mb of system RAM then I doubt you have a video card with pixel shader 2.0. In which case your out of luck for all releases past the original beta. Not to mention that most games will run like crap anyways.

So your solution is most likely to buy a more current PC.

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Intel C2D E6300 @ 2.33ghz
4gb of GeIL DDR2 800 5-4-4-12
ATI Radeon 3870 512mb
Creative X-Fi Fatality Pro Gamer
LG L206WTY-BF 20" 1680x1050
Vista Ultimate SP1 x64

[drkIIRaziel]

nullDC does not require ps2, it will work on non ps cards too

[gamedc12]

I know my PC is not a "state of the art" one, and there are faster ones now in the market like Core Duo based, but when I bought it two years ago, Core Duo did not exist. Nevertheless it is very fast, it is an original Intel Pentium 4 with 2.4 GHZ cpu, and a NVidia GForce 5500 FX with 128 MB of video ram and a TV out plug, the only drawback is that the memory of the PC is 256 MB RAM. But I use Windows XP SP2 and DirectX 9.c, the computer has Pixel Shader 2.0 and the NVidia GForce is a powerful graphic card capable of do anisotropic filtering, trilinear filtering and so, I can run the latest PC games at full speed, I can run NULLDC Emu at full speed, etc, only things I cannot run are PS2 emu and a few games on Mame which need a Core Duo CPU.

My posting was about the game AIFORCE DELTA ( US version NTSC ), running on NULLDC b 1.6 which is the only game that has problems while loading saved games, all the others I tested worked OK.
I also played the game in my Dreamcast and I noticed that the game takes about 10 or 20 seconds to load a saved game, don´t know if this has something to do with the problem when ran in the emulator.
I know my PC is not a "state of the art" one, and there are faster ones now in the market like Core Duo based, but when I bought it two years ago, Core Duo did not exist. Nevertheless it is very fast, it is an original Intel Pentium 4 with 2.4 GHZ cpu, and a NVidia GForce 5500 FX with 128 MB of video ram and a TV out plug, the only drawback is that the memory of the PC is 256 MB RAM. But I use Windows XP SP2 and DirectX 9.c, the computer has Pixel Shader 2.0 and the NVidia GForce is a powerful graphic card capable of do anisotropic filtering, trilinear filtering and so, I can run the latest PC games at full speed, I can run NULLDC Emu at full speed, etc, only things I cannot run are PS2 emu and a few games on Mame which need a Core Duo CPU.

My posting was about the game AIFORCE DELTA ( US version NTSC ), running on NULLDC b 1.6 which is the only game that has problems while loading saved games, all the others I tested worked OK.
I also played the game in my Dreamcast and I noticed that the game takes about 10 or 20 seconds to load a saved game, don´t know if this has something to do with the problem when ran in the emulator.

The last thing appearing in the error log of NULLDC ( the black window ) is "GDROM: Unhandled Sega SPI frame: SPI_REQ_STAT" the moment the game hangs.

Any ideas are welcome !!

[Tree Dude]

Originally Posted by drkIIRaziel

nullDC does not require ps2, it will work on non ps cards too

In this very thread you stated that because MS dropped support for PS1.x in the DX release you used PS2.0 is required to use the NullDC PVR (at least untill you released a fix). I thought at the very least PS1.x would be required. Maybe I'm missing something or interpreted you wrong.

__________________
Intel C2D E6300 @ 2.33ghz
4gb of GeIL DDR2 800 5-4-4-12
ATI Radeon 3870 512mb
Creative X-Fi Fatality Pro Gamer
LG L206WTY-BF 20" 1680x1050
Vista Ultimate SP1 x64

[SPK8000LG]

Your getting a GD-Rom error plus it takes long for it to load on the real Dreamcast, I can only assume its a bad image file. Ill dump that game now and give it a try and post back

[PsyMan]

Originally Posted by Tree Dude

In this very thread you stated that because MS dropped support for PS1.x in the DX release you used PS2.0 is required to use the NullDC PVR (at least untill you released a fix). I thought at the very least PS1.x would be required. Maybe I'm missing something or interpreted you wrong.

Yup, you interpreted him wrong. When a card does not support SM then nullPVR falls back to fixed function in order to support non SM capable cards.
Since MS dropped support for SM1.x cards on their latest DirectX SDKs SM1.x cards will not work unless nullPVR falls back to fixed function.

In short:
Non SM card: Fall back
SM 1.x card: Fall back
SM 2.0 or newer: Shader based rendering

PS: SM shands for Shader Model

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[Tree Dude]

Originally Posted by PsyMan

Yup, you interpreted him wrong. When a card does not support SM then nullPVR falls back to fixed function in order to support non SM capable cards.
Since MS dropped support for SM1.x cards on their latest DirectX SDKs SM1.x cards will not work unless nullPVR falls back to fixed function.

In short:
Non SM card: Fall back
SM 1.x card: Fall back
SM 2.0 or newer: Shader based rendering

PS: SM shands for Shader Model

I see. This makes more sense. So does this only impact performance, or does it impact compatibility as well?

__________________
Intel C2D E6300 @ 2.33ghz
4gb of GeIL DDR2 800 5-4-4-12
ATI Radeon 3870 512mb
Creative X-Fi Fatality Pro Gamer
LG L206WTY-BF 20" 1680x1050
Vista Ultimate SP1 x64

[drkIIRaziel]

The sm code path has a few more features (like decoding Paleted textures on the gpu instead of cpu), but nothing that should affect compat .

[hb083]

how do fix my gdi image to work with this release?
i need help please

[drkIIRaziel]

Backup the .gdi file and then look for -8 numbers there and replace em with 0

[hb083]

sorry im a newbie
which file do i replace 8 with 0?

[drkIIRaziel]

Use notepad and your keyboard .. its not hard ...

[hb083]

for capcom vs snk 2 and mvsc2 it shows unreadable characters in pause menu
can this be fixed by changing settings ?

[drkIIRaziel]

Disable sorting from pvr options

[hb083]

another problem is that when i mount an image and start it crashes nulldc

sorry but im unclear on how to get gdi images work
some help would be appreciated thankyou

[Fujitaka]

I just tried booting it using nullDC_100b1_6_mmu.exe

I get DIV32S matched 1% @ 0x8C009ACA
Error in .\dc\mem\sb.cpp:sb_WriteMem:423 -> Write to System Control Regs , not implemented , addr=5f74e4, data=42fe
Error in .\dc\mem\sb.cpp:sb_WriteMem:423 -> Write to System Control Regs , not implemented , addr=5f74e4, data=1fffff
C:BSC_PCTRA = 000A03F0
VREG = 03
Error in .\dc\mem\sb.cpp:sb_WriteMem:423 -> Write to System Control Regs , not implemented , addr=5f74e4, data=1fffff
not implemented opcode : FFFF : Unknown opcode @ ACE000000
Press Any key to continue

I wonder if it is the bios I am using or is it the CDI image I am using. Maby it is nulldc its self in which case I will just wait for another release of this emulator to try and boot this game again.

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Last edited by Fujitaka; January 12th, 2008 at 22:24..

[Mada_Wolf]

Originally Posted by niuus

This emu -rocks- since beta 1. Quick question for those who play REZ: is there a way to finish the game? It hangs in a white screen with audio playing, after you kill the Area 5 boss in his last shape (same if you lose against it).

Yeah that's quite annoying I found a way round it, as soon as it crashes with the white screen just do a reset to the game menu (Hold down A, B, X, Y then start) that should automaticly save and update analyzation, shot down and support item bars.

Hey can anyone tell me how to get more than 2 channel audio when not using the NullAICA plugin's Hardware mixing option? The only way I've been able to have it is to enable that option.

Awesome Emulator drkIIRaziel! keep up the good work!

[drkIIRaziel]

5.1 systems should expand the audio as needed (it works here).

[hb083]

im trying to boot gdi images but no luck
the zSCSI.txt file already has (0)s

[kplus]

Originally Posted by funkycatspangky

ok i seem to have found out the problem to my nulldc crashing ...

it seems like I cannot select nullPVR as the graphics plugin ???

If I select NullPVR as the plugin, it will crash on being run

if I select Chankast video PVR it will run but becomes slow ...

anyone have any idea why I cannot use NullPVR ???

Thanks

FunkyCat - Spangky

Hey I've got the same problem but its the other way around. The nullPVR plugin works fine but the Chankast video July 23 2007 plugin just shows a black screen. Please forgive me if someone has commented this problem. its probably because of this crappy laptop I just bought but it playes a lot of games with almost perfect framerates. Angain forgive me I'm still reading all the posts for an answer and thanks for devoting time to nullDC.