Click Here
home features news forums classifieds faqs links search
5652 members 
Amiga Q&A /  Free for All /  Emulation /  Gaming / (Latest Posts)
Login

Nickname

Password

Lost Password?

Don't have an account yet?
Register now!

Support Amigaworld.net
Your support is needed and is appreciated as Amigaworld.net is primarily dependent upon the support of its users.
Donate

Menu
Main sections
» Home
» Features
» News
» Forums
» Classifieds
» Links
» Downloads
Extras
» OS4 Zone
» IRC Network
» AmigaWorld Radio
» Newsfeed
» Top Members
» Amiga Dealers
Information
» About Us
» FAQs
» Advertise
» Polls
» Terms of Service
» Search

IRC Channel
Server: irc.amigaworld.net
Ports: 1024,5555, 6665-6669
SSL port: 6697
Channel: #Amigaworld
Channel Policy and Guidelines

Who's Online
46 crawler(s) on-line.
 7 guest(s) on-line.
 0 member(s) on-line.



You are an anonymous user.
Register Now!
 Rob:  8 mins ago
 NovaCoder:  20 mins ago
 DWolfman:  43 mins ago
 ggw:  45 mins ago
 kolla:  1 hr 23 mins ago
 ne_one:  1 hr 32 mins ago
 RobertB:  1 hr 36 mins ago
 Severin:  1 hr 46 mins ago
 freak:  1 hr 50 mins ago
 vox:  1 hr 57 mins ago

Software News   Software News : Bounty for JIT enabled E-UAE on AmigaOS4.1
   posted by Troels on 9-Jun-2009 14:44:14 (5131 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
    

Related Links
· More about Software News
· News by Troels


Most read story about Software News
UBoot 2010.06.04 for Sam460ex available

Last news about Software News
IBrowse 2.5 Released
Printer Friendly Page  Send this Story to a Friend

Goto page ( 1 | 2 )

PosterThread
d0c 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 10-Jun-2009 10:42:17
#21 ]
Cult Member
Joined: 8-Sep-2004
Posts: 896
From: UK

this is one of the softwares on my list, that is much needed.... hopefully we will soon have 100% working working and no beta crap.

Last edited by d0c on 10-Jun-2009 at 10:43 AM.


_________________
I was a ZX Spectrum owner....

 Status: Offline
Profile     Report this post  
Kronos 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 10-Jun-2009 22:48:37
#22 ]
Elite Member
Joined: 8-Mar-2003
Posts: 2166
From: Unknown

To be honest, whats the point ? 68k-SW falls into 3 categories:

1. System-conform (RTG/AHI etc) if these don't run on your (PPC)OS, your OS is at fail.
2. Superseeded/replaced by PPC-SW (browsers for example)
3. works fast enough in interpreted-EMU, mostly games which most of the time wouldn't run under JIT anyway.


_________________
- We don't need good ideas, we haven't run out on bad ones yet
- blame Canada

 Status: Offline
Profile     Report this post  
Dwyloc 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 10-Jun-2009 22:59:23
#23 ]
Super Member
Joined: 30-Mar-2005
Posts: 1051
From: Glasgow, Scotland

I the event that someone with the required experience take on the project the I will make a donation but until then I will not be putting any more money to words another boaunty with know one working on it.

I much prefer to donate my money to authors of current projects and encourage them to keep working on them.


_________________
Sam440ep 667mhz, 512MB, 120GB 2.5" HD, OS4.1FE
WinUae 3.0.0, OS 3.9, BB3, Catweasel MkIV
Amiga 1200, Blizzard 040/40 (BlizzardPPC 060/200 with SCSI removed at present), mediatorSX pci, Voodoo3, PCI network card os 3.9BB2
4MB Minimig with ARM addon boar

 Status: Offline
Profile     Report this post  
fingus 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 12-Jun-2009 11:26:29
#24 ]
Cult Member
Joined: 20-Oct-2006
Posts: 736
From: Münster / Germany

what we really need is to play smooth our old Amiga500-games!

please someone add that to petunia or something else.

If i show my new amiga system to friends, the first question of them is:

"Can i play my old Amiga500 games"

the aswer is sad:

"not really, the emus are slow and picture are slow"

Classic Emulation should be Part of Amiga OS4.1.
It´s another motivation for much old Amigans to buy a new Amiga.

Sam hardware should do it smoothly. On PC we have this since Pentium II266 Mhz!


_________________
SAM460ex Lite, Radeon HD6570 Ultimate/1GB, Juli@Xte PCI-e soundcard (top notch!), eSATA-Connector, OS4.1 Final Edition, Author of Amiga-Flipclock

 Status: Offline
Profile     Report this post  
rzookol 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 12-Jun-2009 13:26:41
#25 ]
Regular Member
Joined: 4-Oct-2005
Posts: 238
From: Poland, Lublin

G4 1 ghz is able to play most of the a500 games without slowdown. Slamtilt and worms dc run ok too.

 Status: Offline
Profile     Report this post  
billt 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 12-Jun-2009 16:12:20
#26 ]
Elite Member
Joined: 24-Oct-2003
Posts: 3104
From: Maryland, USA

Quote:
"Can i play my old Amiga500 games"
the aswer is sad:
"not really, the emus are slow and picture are slow"


Can they play all their old games from 286 PCs? Dos games, Win3.1 games, Win95 games? Some yes, some no. Same as us. Just as sad as us. Deal with it. You, me, them, everyone.


_________________
All glory to the Hypnotoad!

 Status: Offline
Profile     Report this post  
Arko 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 12-Jun-2009 16:19:25
#27 ]
Super Member
Joined: 17-Jan-2007
Posts: 1989
From: Unknown

To be honest, this bounty is one of the most useless bounties I ever heard of.

Here are the reasons:

1. the performance of a JIT as emulator is overestimated
2. E-UAE under AOS4 or MOS is only useful for games that uses the custom chips, this type of games where programmed for CPUs below the speed of the CPU emulation that E-UAE reaches without JIT.
3. Instead of wasting money by emulating of old games we could put up bounties
- for porting old games.
- for reprogramming old games.
- for programming new games.

Since the last 20 years we had so much changes in technology.
imagine a Worms like game to play on the workbench screen over the Internet. or an online version of a Ultima like 2D RPG ... alls this could be programmed with little effort by a small hobby team of 3 people, that would make much more sense than a speedup of the existing E-UAE.

A speedup in E-UAE won't bring you new software, not for AOS4, MOS, AROS nor AOS3 ...

Last edited by Arko on 12-Jun-2009 at 04:21 PM.


_________________
AmigaONE. Haha. Just because you can put label on it does not make it Amiga.

I borrowed this comments from here (#27 & #28):
http://amigaworld.net/modules/newbb/viewtopic.php?topic_id=38873&forum=2&start=20&order=0

 Status: Offline
Profile     Report this post  
_Steve_ 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 14-Jun-2009 1:28:35
#28 ]
Team Member
Joined: 18-Oct-2002
Posts: 6744
From: UK

@arko

Quote:
To be honest, this bounty is one of the most useless bounties I ever heard of.

Here are the reasons:

1. the performance of a JIT as emulator is overestimated


The JIT isn't an emulator though. The JIT is just a component used to make the emulated system run faster.

Quote:
2. E-UAE under AOS4 or MOS is only useful for games that uses the custom chips, this type of games where programmed for CPUs below the speed of the CPU emulation that E-UAE reaches without JIT.


E-UAE is only used to play pretty much every game ever written for the A500, CD32, A1200/4000 - which generally involves them doing something with the custom chips not found in the modern machines. Now while these games may have been made for a system only running on a 7MHz CPU (or 14MHz for the 1200), the emulated system needs a faster CPU to be able to emulate the A500 in its entirety at a decent enough speed to be playable.

The CSPPC (at 233MHz) is barely fast enough to play A500 games using an old WarpOS port of UAE 8.x.x. The current WinUAE sources include a lot more functionality and the best speed gains are down to the JIT. Naturally, the JIT itself has also been the cause of some incompatibility issues, and needs to be disabled in certain cases - but these are few and far between and even an x86 machine typically needs the JIT enabled to run at a nice speed with no input or display lag. When you throw AGA emulation into the equation, the JIT really comes into its own at making the whole experience more enjoyable.

Quote:
3. Instead of wasting money by emulating of old games we could put up bounties
- for porting old games.
- for reprogramming old games.
- for programming new games.


For the A500/A1200 games, it isn't so much porting as completely re-writing as they are 68k assembly titles that need completely reworking to remove all chipset and hardware banging methods. In this case it is simply not worth the effort, and you are then reliant on the re-made title having the same gameplay mechanics and being as fun as the original was.

Quote:
Since the last 20 years we had so much changes in technology.
imagine a Worms like game to play on the workbench screen over the Internet. or an online version of a Ultima like 2D RPG ... alls this could be programmed with little effort by a small hobby team of 3 people, that would make much more sense than a speedup of the existing E-UAE.

A speedup in E-UAE won't bring you new software, not for AOS4, MOS, AROS nor AOS3 ...


But the point is not that E-UAE is going to bring new software, it is simply that you can actually play the software you already have for your classic machines that doesn't work on your new hardware at all - and the be able to play them at a decent speed without having to resort to lower screen sizes or frame skipping or reduced sound/sound quality.

It could be that someone actually just wants to play Worms, or WormsDC and not some new Worms like title.

 Status: Offline
Profile     Report this post  
thinkchip 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 15-Jun-2009 14:59:22
#29 ]
Super Member
Joined: 26-Mar-2004
Posts: 1113
From: Salt Lake City, Utah, USA

I want to get the money I paid for the Sputnik project and apply it to the JIT project.


_________________
AmigaOne 500(OS4.1 FE) / microA1(OS4.1 FE) / Cubic IDE / Imagine
Amiga 4000/1200/500/2500/1000 / VIC20 / C64 / SX64 / C128 / C16 / C116 / Plus/4 / PET B500
Windows 10 / 3GHz AMD Phenom 8GB RAM / Lightwave 11.6.3 / Visual C++

 Status: Offline
Profile     Report this post  
Hypex 
Re: Bounty for JIT enabled E-UAE on AmigaOS4.1
Posted on 15-Jul-2009 2:49:34
#30 ]
Elite Member
Joined: 6-May-2007
Posts: 9556
From: Greensborough, Australia

@Arko

I disagree. I run an EUAE Workbench for some testing. And not all RTG system friendly apps play ball and can simply crash OS4. Apart from that, have you ever used EUAE at it's full speed? Running a Workbench with native P96 drivers?

It is slow as. Even with the faster native RTG screen drivers it is still slow. And if you like to have a directory added as a volume then forget it! EUAE stops as soon as it opens files. I don't see this type of delay on a PC.

And on a Sam this will be even slower.

 Status: Offline
Profile     Report this post  

Goto page ( 1 | 2 )

[ home ][ about us ][ privacy ] [ forums ][ classifieds ] [ links ][ news archive ] [ link to us ][ user account ]
Copyright (C) 2000 - 2019 Amigaworld.net.
Amigaworld.net was originally founded by David Doyle