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Software News   Software News : Bounty for JIT enabled E-UAE on AmigaOS4.1
   posted by Troels on 9-Jun-2009 14:44:14 (5111 reads)
E-UAE on AmigaOS4.1 (and MorphOS) supports only interpretive emulation and is quite slow compared to f.ex. winUAE.
What's needed is JIT 68K code emulation to speed things up.
Especially AmigaOS4.1 users with slower machines will gain a lot from a JIT version of E-UAE.

Read more...


As the JIT will automatically become open source, other PPC platforms will also be able to benefit from it.

As a minimum the project should be able to.
- Bring JIT 68k code emulation to the OS4 version of E-UAE.
- Work with a number of specified games and applications that runs
(slow) under the OS4 version of E-UAE.


Click the link below to visit the project page.
http://amigabounty.net/?function=viewproject&projectid=35
    

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PosterThread
Trekiej 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 16:47:44
#1 ]
Cult Member
Joined: 17-Oct-2006
Posts: 656
From: Unknown

Is there anyway to tell what the limitations are of JIT?
More RAM means faster speed up to a point, from what I understand will increase the speed.
Will it level off and do no more good after a while?


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billt 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 17:02:54
#2 ]
Elite Member
Joined: 24-Oct-2003
Posts: 3100
From: Maryland, USA

Quote:
Is there anyway to tell what the limitations are of JIT?


By the size of the translation buffer holding native PPC instructions? The smaller the buffer, the fewer PPC-native instructions, the more often it needs to translate. A one-instruction size buffer is basically an interpreter. If th ebuffer is larger than PPC-native translation of all the 68K software running, then you won't notice different making it bigger.

Also by what isntructions are supported in PPC-native translation, if some are not but are frequently used, you have to stop and interpret those. But it makes sense to JIT translate the most popular ones, preferrably all possible 68k instructions.


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retro 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 18:15:08
#3 ]
Super Member
Joined: 16-Dec-2003
Posts: 1028
From: Unknown

whot iff an 68k version was made then os 4 world use the ppc to run uae with jit. then the program/emolator dont have to translate the cpu,


yes wee most off all need a faster uae.

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retro 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 18:18:21
#4 ]
Super Member
Joined: 16-Dec-2003
Posts: 1028
From: Unknown

the aros version dosent work,
woth iff the code was mixed. so it both used 68k and ppc (powerup/warpos) then the program world use warpos warpper and jit.

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retro 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 18:38:32
#5 ]
Super Member
Joined: 16-Dec-2003
Posts: 1028
From: Unknown

The JIT will automatically become open source and other PPC OS, be able to benefit from it.

way does wee have to trow away evey advantage that os 4.x have
i relly cant see way wee have to give the morphos pepole anything
wee give and give there dont give anything back and ther are only taking resources from the platform.. way not take half og evry thing and give it to bill gates. amiga indrustri is so small anyway..




anyway wee relly neeed jit to uae too be avaible to use uae as an final solution....

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KimmoK 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 18:49:30
#6 ]
Elite Member
Joined: 14-Mar-2003
Posts: 5101
From: Ylikiiminki, Finland

this thing definitely is worth a bounty!

@retro



Amigaworld will benefit if we work together. No camps, no sides, all together.
What if Hyperion guys dive into sea inside some airplane? Is it not good that we then have planB and planC?


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// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

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retro 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 18:50:43
#7 ]
Super Member
Joined: 16-Dec-2003
Posts: 1028
From: Unknown

just donated 14 euros

i think that evry one who has os 4.x should donate to this one. iff wee can pay soo much for a motherboard wee can allso affort to make a small donation to this couse..
there are alot of os 3.x software wee cant use these days.another thing
amiga inc should give os 3.x roms away ot os 4.x ussers dont you think....

its just ####es mee off that it is a morphos bounty too

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Doobrey 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 18:54:48
#8 ]
Regular Member
Joined: 14-Apr-2003
Posts: 276
From: Unknown

Quote:
way does wee have to trow away evey advantage that os 4.x have
i relly cant see way wee have to give the morphos pepole anything
wee give and give there dont give anything back and ther are only taking resources from the platform.. way not take half og evry thing and give it to bill gates. amiga indrustri is so small anyway..


Oh please stop the stupid trolling, the red/blue wars are long over except in the minds of a few idiots.

Anyway to your main point, check the license for E-UAE (it's GPL if you can't be bothered)
There's no way to keep it 'OS4 exclusive'.


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retro 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 19:02:00
#9 ]
Super Member
Joined: 16-Dec-2003
Posts: 1028
From: Unknown

Anyway to your main point, check the license for E-UAE (it's GPL if you can't be bothered)
sooooooo ?? or and whot... it is more the less abandonwere....


iff it was realed to os 4.1 without the src. just the compiled .exe

then morphos ussers has to run it with os 4warpper
heheh

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Jamie_S 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 19:10:48
#10 ]
Cult Member
Joined: 26-Oct-2003
Posts: 793
From: Purbeck, UK

Donated... I think it's important to a lot of OS4 users to be able to emulate the old games/software on their Amiga machines... getting JIT will make the whole OS4 platform that bit more tempting to potential users.

Cheers


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HKvalhe 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 20:21:45
#11 ]
Regular Member
Joined: 2-Apr-2009
Posts: 483
From: Norway

No doubt, this would change a lot making Classic Amiga-emulation much faster!


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_Steve_ 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 20:37:00
#12 ]
Team Member
Joined: 18-Oct-2002
Posts: 6743
From: UK

@retro
Quote:
way does wee have to trow away evey advantage that os 4.x have
i relly cant see way wee have to give the morphos pepole anything
wee give and give there dont give anything back and ther are only taking resources from the platform.. way not take half og evry thing and give it to bill gates. amiga indrustri is so small anyway..


Nobody is throwing away any advantages. In fact, by making it open source, everybody wins. The whole point is by being open source, more people can participate in adding to the code and fixing issues and making it better for everybody. The very close source compatibility between AROS, MOS and OS 3.x/4.x has meant that lots of little tools and utilities have been easily ported between the 3 operating systems, to the mutual benefit of all of them.

It really is about time the hatchet was well and truly buried, and that all three groups just learn to live with each other and get along. Life is too short for all of these petty fights.

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SoundSquare 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 20:46:13
#13 ]
Regular Member
Joined: 31-Jan-2006
Posts: 253
From: Unknown

it requires a very skilled coder, or team, and i doubt there is any left or free at the moment. I wouldn't be surprised if nobody picks up the bounty. Not very optimistic here.

Last edited by SoundSquare on 09-Jun-2009 at 08:47 PM.
Last edited by SoundSquare on 09-Jun-2009 at 08:46 PM.


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rzookol 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 21:17:33
#14 ]
Regular Member
Joined: 4-Oct-2005
Posts: 238
From: Poland, Lublin

Umisef has written that he will give his unfinished JIT PPC to people. Amidog has written simple jit for ppc also (for Amigenerator).

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Doobrey 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 22:24:02
#15 ]
Regular Member
Joined: 14-Apr-2003
Posts: 276
From: Unknown

Quote:
sooooooo ?? or and whot... it is more the less abandonwere....

Complete and utter bovine excrement.
Last update 20th August 2008, I'd hardly class it as abandoned, it's newer
than OS4 for the 'classic' Amiga, and only 1 month older than OS4.1 !

I guess we can class them as abandonware too huh ?

Quote:

iff it was realed to os 4.1 without the src. just the compiled .exe


You really should read the GPL sometime, you can't hold back the sources.

Quote:

then morphos ussers has to run it with os 4warpper
heheh


Jeez, how pathetic.

Howcome you use E-UAE, which has had lots of fixes and improvements from "non-OS4" coders (ie Windows,Linux,Mac,AROS etc). Even EvilRich's site says that E-UAE is "largely based on WinUAE"

But you're not prepared to see changes made by OS4 coders go back into the main source tree ?

Yet you feel you can lecture about others taking but not giving back? Seems very hypocritical if you ask me.

Last edited by Doobrey on 09-Jun-2009 at 11:03 PM.
Last edited by Doobrey on 09-Jun-2009 at 10:38 PM.


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Fab 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 9-Jun-2009 23:29:31
#16 ]
Super Member
Joined: 17-Mar-2004
Posts: 1178
From: Unknown

@retro

we don't need people like you, really.

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fishy_fis 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 10-Jun-2009 0:31:54
#17 ]
Super Member
Joined: 29-Mar-2004
Posts: 1835
From: Australia

@Retro

Quote:
whot iff an 68k version was made then os 4 world use the ppc to run uae with jit. then the program/emolator dont have to translate the cpu


Doesnt work that way. There is a 68k version by the way, which also emulates the 68k cpu. UAE requires the cpu be emulated due to chipset timings.
As for AROS version doesnt work ?? Huh ?? I use it regularly (with jit cpu emulation) and its the best version available to date on an Amiga based system (j-uae).

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retro 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 10-Jun-2009 0:46:04
#18 ]
Super Member
Joined: 16-Dec-2003
Posts: 1028
From: Unknown

hmm. i just wanna secure that pepole gonna pick os 4.1
becuse iff pepole suport morphos ther might as well buy an "mac mini" an run linux on it....
morphos startet to develop on the desktop way before hyperion did. so there have a step ahead,

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meet.mrnrg 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 10-Jun-2009 3:35:23
#19 ]
Super Member
Joined: 5-Feb-2007
Posts: 1919
From: UK, AUS, US

I see a lot of people have donated already. I put in some money also of course.
Once E-UAE is working properly with PPC JIT it's going to be a very nice situation for a lot of PPC users;

Sam440.xxx
Peg.xxx
Efika.xxx
MacMin.xxx
YellowDog.xxx
etc..


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fingus 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 10-Jun-2009 9:40:47
#20 ]
Cult Member
Joined: 20-Oct-2006
Posts: 736
From: Münster / Germany

we need good classic emulation!


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