Virtua Racing
Moderator: BigEvilCorporation
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Virtua Racing
I dumped the genesis version of VR if anyone wants to take a shot at it, since the SVP specs have been appearing lately..
http://blackevilweredragon.spymac.com/vr.rar
http://blackevilweredragon.spymac.com/vr.rar
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Yes, that would be "multiplied". I'm sure I just mixed it up.evildragon wrote:i noticed your guide says the 23Mhz clocked is derived by dividing the 68k clock by 3. wouldn't that be "multiplied"?
http://www.undergroundcm.com/forum/viewtopic.php?t=231evildragon wrote:anyway, with these guides, someone got the Genesis 3 running VR...
The 23MHz clock rate is merely a hypothesis but as I see now the SVP takes both the 7.6MHz 68k clock and the 13.22MHz dot clock. I would have assumed that the dot clock is used as a DRAM refresh but I believe VR uses pseudo-static RAM.
As far as I know, there have been no efforts to determine the instruction timings, etc.
The day has finally arrived, SVP is now emulated
http://www.eidolons-inn.net/tiki-view_f ... &forumId=5
Nice job TascoDLX and Notaz !
http://www.eidolons-inn.net/tiki-view_f ... &forumId=5
Nice job TascoDLX and Notaz !
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WOWOWOWOW !!!
Now this needs to be put into Gens and Fusion !!!
Now this needs to be put into Gens and Fusion !!!
Mida sa loed ? Nagunii aru ei saa
http://www.tmeeco.eu
Files of all broken links and images of mine are found here : http://www.tmeeco.eu/FileDen
http://www.tmeeco.eu
Files of all broken links and images of mine are found here : http://www.tmeeco.eu/FileDen
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Yes, it's too bad Apple switched to the x86 before DarWINE had a chance to get going... unless you're on an x86 Mac. If so, you might try the current x86 DarWINE builds.evildragon wrote:I can't run WINE sadly.
Glad my ROM works..
In the emulator, VR runs FAST... I forget how fast the actual cart was on a real Genesis. I normally use the 32X cart... I'll have to dig through my boxes looking for the Genesis cart to check how it compares to the emulation.
I'm interested if you could capture video of the real cart running on GenesisIn the emulator, VR runs FAST... I forget how fast the actual cart was on a real Genesis. I normally use the 32X cart... I'll have to dig through my boxes looking for the Genesis cart to check how it compares to the emulation.
Indeed, I implemented the SVP core in my emulator but the Gamecube CPU lacks some power to run everything at full speed (average 45 fps with some downfalls to 25 fps )...
If I want full framerate, I have to underclock the SVP but then the "3D" rendering is slower (according to Notaz, correct value is approximately 1000 cycles per line, but it's is maybe overclocked a little bit)
Having the real thing to compare and adjust cycles value would be nice
or maybe it's time for me to learn PowerPC ASM