Altivec Builds

PPC_Digger · Post by **PPC_Digger** » Thu Jul 22, 2004 9:53 am

Now all the devel team has to do is convert everything to 64-bit and they got themselves a G5 :D

desertboy · Post by **desertboy** » Thu Jul 22, 2004 7:00 pm

kybernaut wrote:hey guys...

From the info I got from the dev mailing list and the wiki, AltiVec is software emulated at the moment. It should run on a 486 as well as on a P4.

http://www.kelley.ca/pearpc/wiki/index.php/Altivec
http://sourceforge.net/mailarchive/foru ... arpc-devel

--kybernaut

Precisely what I said 3rd post but no one seemed to notice.

Ho hum

Marc · Post by **Marc** » Thu Jul 22, 2004 8:20 pm

kybernaut wrote:
prasys wrote:so its possible to emulate G4 on a 486 PC
Yes... that should be possible.

I would doubt that. Pear PC will be compiled for a 686 core. That core is very different from a 486 core

kybernaut · Post by **kybernaut** » Thu Jul 22, 2004 8:25 pm

desertboy wrote:Precisely what I said 3rd post but no one seemed to notice.

yeah, but sometimes bare facts aren't that exciting...

Not that anyone gets me wrong: I think it's a huge achievement that PearPC now virtually emulates a G4. If someone had told me so a year ago I probably would not have believed him...

But all this needs time to get where we want it to be. in the meatime it helps to stick with the facts...

--kybernaut

PPC_Digger · Post by **PPC_Digger** » Thu Jul 22, 2004 9:26 pm

Marc wrote:
kybernaut wrote:
prasys wrote:so its possible to emulate G4 on a 486 PC
Yes... that should be possible.
I would doubt that. Pear PC will be compiled for a 686 core. That core is very different from a 486 core

don't forget that it compiles for 686+ only if you compile it optimized, the non-optimized build is plain ia-32 code which should run perfectly (but slowly) on a 486 or even a 386 (even slower).

Marc · Post by **Marc** » Thu Jul 22, 2004 11:22 pm

I didn't mean just an optimisation for 686. Some programs refuse to run if they do not have a P6 core. Try running some versions of Sci Tech Display Doctor on a regular pentium, for example. It throws skitz and then says it won't work cos it specifically calls for 686 instructions. I am not saying that PearPC is like this, but it might be.

PPC_Digger · Post by **PPC_Digger** » Thu Jul 22, 2004 11:45 pm

well, sebastian said that pearpc should run ok (but slowly) on a 486 as on a p4, and he's the main developer, so i would listen (i don't want to go and test my pearpc on the 486 a few meters away through a parallel cable)

prasys · Post by **prasys** » Fri Jul 23, 2004 5:37 am

Well , G3 emulation on 486....*faints*..Well , it will run slow...and PearPC really rocks with Velocity Engine...(G4 emulation)...

Cybermagellan · Post by **Cybermagellan** » Fri Jul 23, 2004 6:19 am

Hmm for some reason I am not getting the watched topic E-mails anymore....I'll have to run that past clockwise...ANYWAYS!

23 July 04 is updated....and I had family issues the other night that stopped me from loging on and doing it (didn't even touch the computer)...ALSO...

A few people have asked about *nix builds.....well if you send me the flags for it or a complete script for CYGWin on how to do it but your too lazy I'll do it for everyone....there that is my offer....

Shawn

PPC_Digger · Post by **PPC_Digger** » Fri Jul 23, 2004 1:03 pm

you mean a script for compiling pearpc on cygwin? linux?

Simba7 · Post by **Simba7** » Sat Jul 24, 2004 12:53 am

Is there a way to take advantage of both SSE and 3DNow! Pro in the Athlon XP Processors?

Cybermagellan · Post by **Cybermagellan** » Sat Jul 24, 2004 9:22 am

I have to apologize to everyone I was unable to build really anything today 23-24 July cause I had a windows issue. However I was able to compile and build a beta Altivec build (say that three times fast) and a Beta Altivec with fixed SDL to allow fullscreen....take alook at my site and the links are on the front.

rudefyet · Post by **rudefyet** » Sat Jul 24, 2004 8:05 pm

what flags you you guys using for the optimized builds

i started with

Code: Select all

-march=pentium3 -O3 -pipe -fomit-frame-pointer

for my computer..along with the other default flags the config file sets up

here's my final setup for gcc 3.4

Code: Select all

-march=pentium3 -O3 -pipe -fomit-frame-pointer -momit-leaf-frame-pointer -ftracer -fno-crossjumping -mfpmath=sse -maccumulate-outgoing-args -fmove-all-movables -freduce-all-givs -ffast-math -fprefetch-loop-arrays -fforce-addr -falign-functions=4 -funroll-loops -fweb -Wundef -Wall -g -D_LARGEFILE_SOURCE -fsigned-char -D_FILE_OFFSET_BITS=64

the build made with the latter flags was 5 seconds faster booting darwin

PPC_Digger · Post by **PPC_Digger** » Sun Jul 25, 2004 6:29 am

rudefyet wrote:what flags you you guys using for the optimized builds

i started with
Code: Select all
-march=pentium3 -O3 -pipe -fomit-frame-pointer
for my computer..along with the other default flags the config file sets up

here's my final setup for gcc 3.4
Code: Select all
-march=pentium3 -O3 -pipe -fomit-frame-pointer -momit-leaf-frame-pointer -ftracer -fno-crossjumping -mfpmath=sse -maccumulate-outgoing-args -fmove-all-movables -freduce-all-givs -ffast-math -fprefetch-loop-arrays -fforce-addr -falign-functions=4 -funroll-loops -fweb -Wundef -Wall -g -D_LARGEFILE_SOURCE -fsigned-char -D_FILE_OFFSET_BITS=64
the build made with the latter flags was 5 seconds faster booting darwin

well, i used -march=athlon-4 -O3 and it did run faster (don't ask me about darwin, but osx loaded 10-15 seconds faster)

rudefyet · Post by **rudefyet** » Sun Jul 25, 2004 7:44 am

using the first with just -march=pentium3 -O3 -pipe -fomit-frame-pointer vs. the really obnoxiusly long list of flags...i noticed the animations in OS X ran much smoother...mainly the menu fading....i'm quite impressed myself

Gold · Post by **Gold** » Sun Jul 25, 2004 11:25 pm

Can you post this build?

rudefyet · Post by **rudefyet** » Mon Jul 26, 2004 4:13 am

Gold wrote:Can you post this build?

I don't have a server right now to put it on

It was just a .2 release version anyways

I can make them using those flags for any processor...although i dunno what flags the other people making builds use so i can't gurantee a performance increase

PPC_Digger · Post by **PPC_Digger** » Mon Jul 26, 2004 5:12 am

can't people compile themselves?

rudefyet · Post by **rudefyet** » Mon Jul 26, 2004 5:14 am

PPC_Digger wrote:can't people compile themselves?

Cybermagellan · Post by **Cybermagellan** » Mon Jul 26, 2004 7:04 am

Ok, it is PPC_diggers responsibility to teach everyone how to use CYGwin now...sound fair enough?

prasys · Post by **prasys** » Mon Jul 26, 2004 7:07 am

Well , some people even do not know how to.......use *nix (sorry nooobs...even me...i am forgetting my commands)....Well , I hope someone puts up at Noob-Guide-to compile PearPC....

Cybermagellan · Post by **Cybermagellan** » Mon Jul 26, 2004 7:14 am

Once the site is running at full speed then I will do so

PPC_Digger · Post by **PPC_Digger** » Mon Jul 26, 2004 7:35 am

i can start making a tutrial right now, just give me a day or two.

Ancient Imhotep · Post by **Ancient Imhotep** » Mon Jul 26, 2004 5:35 pm

I want to help with the PearPC development as much as possible, so if someone posts a tutorial on how to compile using CYGwin then I will take the time to read it.

Then if people want I can compile the code and even try new patches to see if they work.

I think that all the people who can should test the patches, as these will help to add features and remove bugs.

PPC_Digger · Post by **PPC_Digger** » Mon Jul 26, 2004 8:53 pm

Ancient Imhotep wrote:I think that all the people who can should test the patches, as these will help to add features and remove bugs.

that's what open source is all about :D