128 -> 64 Bits

[maurojk]

Ok... Hi all im new here in the forum.... i am brazilian and i am sorry about my bad english.

Ok.... i introduce myself for ask all members and mainly ask the staff about some good question....

now we are in the meaning of Windows Vista arrive... and windows Vista will finnaly run Pure 64 Bits aplication.

When we are in 64 Bits aplication running under a pure 64 Bits architecture(Athlon 64 X2 4400+ in Windows Vista) the theory says that all 128 bits conversion is larger easy that 128 bits to 32 bits(Pentium 4 in Windows XP)


so when this conversion is that size more "cheap" we belive that CPU bottleneck will be reduced.



And FPS problem in emulation will be smashed out....

But the real question is......

The staff are planning to release some 64 Bit version for this archtecture?

This theory is real? or is a insane afirmation?

can i Hope that i will play Zelda Wind Waker in my

Atholn 64 X2 4400+
1 Gbyte 400Mhz Dual Channel
GF FX6800 PCI-E 16x 512Mb eXTreme


?????????????????????????


tanks for atention and sory about my bad english....

cya guys

[Lightning]

In reality, the CPU still does 128bit processing via the SSE instruction set. That does not change in speed between 32 and 64bit processing. The reason you see an improvement in 32 to 64bit processing is that normal memory access will read/write 2x as much data in one access, and, under 64bit, you have an extra 8 general purpose registers (GPRs) to store data in, allowing for less memory access. When emulating, the extra registers are beneficial.

Now, even running under 64bit, Dolphin is currently programmed for 32bit and will not use the extra GPRs but will continue to access memory just as often. In fact, last I was aware of, Dolphin's dynarec only used the GPR and FPR registers but never used any of the extended instructions so the functionality of working with multiple values at once is not even there.

[RockmanForte]

Dont worry about your english. If they do not like it then that's their problem. We must respect a person's dialect, grammar, and vocabulary. If he says, "he done it," it is not "bad" English; the meaning is crystal clear. It is simply not Standard English. The learner must understand, however, that he will be discriminated against in some quarters if he does not use Standard English.

Compreender? Bom!

You need alot of patience because it is alot of work to do for this emulator. Can you buy nintendo game cube ?? If not, then just wait, ok ?

Yes, I speak portuguese! No, this is the place for English language only.

Cheers,

Rockmangames

[Doomulation]

When we are in 64 Bits aplication running under a pure 64 Bits architecture(Athlon 64 X2 4400+ in Windows Vista) the theory says that all 128 bits conversion is larger easy that 128 bits to 32 bits(Pentium 4 in Windows XP)

When not using any SSE or extended instruction sets? Yes. Because on 32-bit processors, each register is 32 bits, the program needs to store 64-bit number in two registers. The same would hold true with 64 -> 128. However, this penalty is incredibly small you will *not* notice it. It might mean a few more instructions here and there but because they're stored in registers it's ultra fast.

[BlueFalcon7]

So let me get this straight, the Dolphin Doesnt support SSE2, SSE3, 64 bit, or Dual core? Because after seeing how Mac utilizes SSE2, and SSE3 for Rosetta for Power PC emulation, Im pretty sure that the dolphin (or any GC emulator *hint hint*) could use those instruction sets. In fact I read up on it, and rosetta allows up to G3 Apps, and the Gekko CPU was a modification of the G3. So if it did support SSE2, and SSE3, Im pretty sure that there would be a big increase in FPS if optimized correctly.

[Lightning]

BlueFalcon7: Ssshhh. Stop giving out Gekko's secrets Ooops, guess I am

[Cobrax1884]

Finally, some info bout the emu XD even tho it's unoficial

[marione]

Who done it?

[Cobrax1884]

who done what?

[BlueFalcon7]

BlueFalcon7: Ssshhh. Stop giving out Gekko's secrets Ooops, guess I am

That must be a good sign