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/  Forum Index
   /  Amiga Emulation
      /  Amiga emulation on Raspberry Pi out performs all my Amiga's
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PosterThread
bison 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 25-Aug-2017 17:50:21
#21 ]
Cult Member
Joined: 18-Dec-2007
Posts: 833
From: N-Space

@Signal

Quote:
I have not been this excited/interested in MIDI since Music-X.

I installed Rosegarden and it picked up that Timidity was already on the system and uses that for an on-board synth. No configuring necessary. Of course Timidity allows the use of either GUS patches or SoundFonts and Rosegarden uses it seamlessly.

Then I dug out my Roland PMA-5 and Edirol UM-1SX USB to MIDI adaptor, plugged in, and Rosegarden also recognized that right away. Much better sound.

Just be sure to use a powered USB hub as the RPi3 has limited power.

It sure feels like Amiga.

It's really strange that you should mention MIDI out of the blue, because I've been doing a lot of that too. I'm running LMMS and Hydrogen on a Linux laptop, but I hope to get this working on a Pi3. I've also been using abc2midi and creating GM files with ABC music notion. These work well on my laptop, but I've had a lot of trouble playing them on my Yamaha MO6 -- this requires doing a midi reset and bank select, which led me into studying the MIDI protocol and writing a C program to do this, which led to writing another C program to generate GM files, which is turning into a library and API. I spent about two weeks down this rabbit hole, and hope to get back to it when I get caught up on other things.

Useful links that I found:

http://tedfelix.com/linux/linux-midi.html

http://www.somascape.org/midi/tech/mfile.html

http://midi.teragonaudio.com/

I first ran across the third one about 15 years ago -- I'm glad that someone has mirrored it.

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JKD 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 26-Aug-2017 2:58:34
#22 ]
Regular Member
Joined: 17-Aug-2003
Posts: 194
From: South of Heaven

@Signman

Quote:

Signman wrote:
@klx300r

you guys might want to read this man's take on emulation. He may go with Tinker Board.

https://jonlennartaasenden.wordpress.com/tag/amibian/




I want that so hard! \m/

Last edited by JKD on 26-Aug-2017 at 04:19 PM.
Last edited by JKD on 26-Aug-2017 at 04:19 PM.

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Raffaele 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 26-Aug-2017 19:14:10
#23 ]
Super Member
Joined: 7-Dec-2005
Posts: 1780
From: Naples, Italy

@clusteruk

Amiga Emulation on Raspberry Pi out performs all my Amigas

Quote:

clusteruk wrote:
Hi All

I have just posted this video because I truly believe that new Amiga fans that are coming along need a cheap way to dip there toes and whilst we all know about the Raspberry Pi usually this is for games. This video is to show it can do so much more.

https://www.youtube.com/watch?v=6HZXM6cLVUg

Oh, and yes it is faster than my 68060/60mhz A2000 as well and seems faster than Vampire too except FPU.

Don't lynch me

Steve


According to this Video I am linking AEROS runs better on ODROID than on Raspberry Pi as long as ODROID sports MALI 450 graphic chip.

https://www.youtube.com/watch?v=IM7iRiozvaw

So then we must assume that the best candidate to run Amiga emulation is not crappy underpowered RasPi but its Korean clone ODROID!

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IridiumFX 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 26-Aug-2017 21:50:33
#24 ]
Member
Joined: 7-Apr-2017
Posts: 11
From: London, UK

@Raffaele

point is ... the Mali is closed source. Should any crazy genius decide to static compile UAE for the board, boot directly to UAE and redirect the graphics calls to the GPU, that would be impossible.
As far as I know, VBCC (yes, the Amiga OS compatible C compiler) also targets the VC4 and there's even a still ongoing effort to create a blobless firmware.

Should I be more clear? it is theoretically possible to transpile the Amiga ROM and HW via a thin HAL layer on a Raspberry, but not on an ODroid. It will never happen, of course, but open doors are better than closed ones

PS:
the tinker board is Cortex A17 powered ... 32 bit only ... not really future proof. I'd stick with the rasp

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Raffaele 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 27-Aug-2017 2:25:57
#25 ]
Super Member
Joined: 7-Dec-2005
Posts: 1780
From: Naples, Italy

@IridiumFX

Mali GPU is closed source, so how Android and Linux distros included to ODROID do it work? Sure there are datasheets, manuals, and open source codes there somewhere to make these distro available...

Aeros is AROS distro and work on ODROID so then we can count on AROS developers for another useful Amiga porting.

Don't you think so?

Last edited by Raffaele on 27-Aug-2017 at 02:28 AM.

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Raffaele 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 27-Aug-2017 2:30:36
#26 ]
Super Member
Joined: 7-Dec-2005
Posts: 1780
From: Naples, Italy

@IridiumFX

Plus there are other more performant Raspberry clones, some based on Intel chips, such as OrangePi, UDOO and LattePanda.

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XDelusion 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 27-Aug-2017 9:20:03
#27 ]
Member
Joined: 23-Jul-2012
Posts: 58
From: Unknown

@XDelusion

In regards to a tutorial for making your Amiga Pi beautiful, I have followed this and got Picasso to work.

How to Build an Amiga Laptop

Last edited by XDelusion on 27-Aug-2017 at 09:21 AM.

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Beans 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 27-Aug-2017 13:25:52
#28 ]
Regular Member
Joined: 26-Aug-2016
Posts: 333
From: Bear Delaware USA

@Raffaele

Quote:
Don't you think so?


No. Mali, as stated before, is closed sourced.
One of the reasons that the Raspberry Pi incorporates the gpu it has is that it is documented.

Mali Android and Linux drivers are provided by the vendor.

They are NOT portable to Amiga related OS' as the source is not available.

So, no, I don't think so.

And your list of Raspberry 'clones'?
Some that you've mentioned use proprietary drivers.
And, the LattePanda...it is an X86 based system designed for Windows10, hardly an RPi clone.

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IridiumFX 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 27-Aug-2017 14:57:23
#29 ]
Member
Joined: 7-Apr-2017
Posts: 11
From: London, UK

@Raffaele

I am afraid, no. Completely wrong. Spec docs are under NDA at ARM and for integrators only. That means, even if you register as developer at ARM website (as I am), all you get is GL ES optimization guides.

Under Linux you get blobs binding to a specific X11 version. Under Android, you get blobs binding to android graphics layer. You can't easily reverse engineer them because you'd have to figure our hardware memory map, register mapping and reimplement an ELF set of frameworks counting for multiple megabytes of object code.

Are there faster single board computers than the rasp? Yes. Plenty. Does it matter? No.
AROS already has too many issues because of blobs, even on a quasi-open platform like x64.

The paradox? An AMD+Radeon combo is currently the only fully documented platform. Full Intel being a close second and Raspberry being a not too distant fourth.
The third? If you give away with graphics acceleration or you don't mind verilog, there's the Adapteva Parallella

Edit: noticed Beans already gave an accurate response. Thumbs up.

Last edited by IridiumFX on 27-Aug-2017 at 03:00 PM.

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bison 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 19-Sep-2017 3:56:05
#30 ]
Cult Member
Joined: 18-Dec-2007
Posts: 833
From: N-Space

@Beans

Speaking of...

The state of open source accelerated graphics on ARM devices

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phoenixkonsole 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 19-Sep-2017 21:58:39
#31 ]
Super Member
Joined: 8-Nov-2009
Posts: 1668
From: Unknown

AEROS for indieGO is even better : D
"Odroid XU4"
Next version will arrive overnext weekend. The underlaying stuff had to be patched again because the last changes resulted in a bug causing a ugly boarder.
Next year there will be again more activity on AROS related stuff. Its too much overload in the moment.. insomnia

_________________
AROS Broadway - AEROS - Aminux - AmiCloud - indieGO! Appstore - AmiWallet - VAN lossless video codec - AMC Amiga media Center -KrypUnite - LibertyNet - MinX - amigaNX

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IridiumFX 
Re: Amiga emulation on Raspberry Pi out performs all my Amiga's
Posted on 19-Sep-2017 22:19:01
#32 ]
Member
Joined: 7-Apr-2017
Posts: 11
From: London, UK

@phoenixkonsole

Wasn't IndieGo a Raspberry 2 based platform?

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