@LyleHaze and ssolie

Congrats and THANKS for all your efforts... These will go down as the
first steps in your creation of the OS4-Xena powered Time Machine.

;)

PJS

Great :)

Does xena have any RTOS running on it as default?

Should we have our own ?
Port of http://aminet.net/package/dev/cross/AmiExec ?

(edit: Link fixed by ChrisH)

Last edited by ChrisH on 24-May-2012 at 09:02 AM.

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

That's great to see this part is in progress with news from times to times. I hope their will be other examples thanks to this tool, to see what can be done with the XMOS chips.

Kimmok: Your link is not clickable, due to the '?'

@Kimmok
I don't think an RTOS makes sense for Xena. First, it has *hardware-based* multi-threading, so no need for an OS to do it. Second, it only has a tiny amount of program memory, so you'd be hard-pressed to fit more programs into it than there are hardware threads, so no need for an OS.

_________________
Author of the PortablE programming language.
It is pitch black. You are likely to be eaten by a grue...

Looks like Jorkany should be very pleased to hear this. He regularly asks about the status of XMOS support within OS4.

Thanks Lyle your contribution is very much appreciated. Donation on the way

TrevorD

edit: typo

Last edited by TrevorDick on 24-May-2012 at 08:28 PM.

_________________
No, I don't need no reason, I'm just breezin'

@ChrisH
"it has *hardware-based* multi-threading, so no need for an OS to do it. "

Yes you are right. I just hope that there will be some very nice way to start/stop/reset processes on the fly per thread from AOS4 side.

I imagine there might be some control SW running on one of the 16 threads, at least optionally.
IIRC, there are some embedded solutions where processing load is shared (almost?) dynamically between the threads on xcore.

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

@KimmoK
Quote:

Does xena have any RTOS running on it as default?

I think you should take a look at what XMOS chips are being used for.

Here is a good starting point:
https://www.xcore.com/projects

The advantage the X1000 has is the local bus between Xena and the PA6T. This enables us to move large amounts of data through the Xena very quickly. Enabling this local bus from AmigaOS has always been a top priority in my mind.

_________________
ExecSG Team Lead

I was loking through some old magazines the other day, New Scientist maybe, and they were going on about Microsoft talking about using multiple randomisation methods on Vista, so that viral code would have to crack differently coded executables in order to proceed, which on multicore processors would cause a faliure when compared.

How would XENA allow high speed preferably runtime code security, if possible, given it can be controlled from teh CPu and I thought send data directly back to teh CPU?

Another trick is using the slow speed XENA to run the code at teh same time as teh high speed CPU. .so if theres an error due to a bit glitch, the CPU fails, flushes, but reloads the runtime from XENA and then continues at speed, depending on size of routines, driver loops etc?

I keep thinking of maybe the XENA chip watching over the CPU behaviour, with the other none OS core running code variations on XENA?

Sorry, just being mad. 8}

_________________
The older and more respected a scientist is, the longer it takes to prove him wrong.

Sorry to be off-topic but,

You do know "teh" is spelled "the", right?
Or is there some special meaning to it being spelled "teh"?

http://en.wikipedia.org/wiki/Teh

_________________
BroadBlues On Blues BroadBlues On Amiga Walker Broad

re:Cameraman
Your post caught me off guard.
I usually type faster than I should, and I VERY often misspell "the" in any number of ways. I don't mind too much on IRC, but I always try to proofread my work twice before posting.
On seeing your post, I was afraid I might have let one slip through in the blog entry.

Only after reading the entire thread again did I realize that your post was intended for Terl and not me.

Broadblues:
All this time I thought I was just being sloppy. Now I can claim to be "leet".. or something like that.
And now I know I can blame Microsoft for my handicap. All those years of typing "the" incorrectly into Word is what reinforced my bad typing habits. Crippled by Autocorrect.

Now proofreading again before hitting Send...

_________________
question=(2b||!(2b))

A very good news

_________________
BACK FOR THE FUTURE

http://www.betatesting.it/backforthefuture

Sam440ep Flex 800 Mhz 1 GB Ram + AmigaOS 4.1 Update 6
AmigaOne XE G3 800 Mhz - 640 MB Ram - Radeon 9200 SE + AmigaOS 4.1 Update 6

@pjs
Quote:

Congrats and THANKS for all your efforts...

Don't thank me. As a typical engineer, I just pointed to where Lyle should dig. He did all the real work.

_________________
ExecSG Team Lead

More xena democode in the works:
http://blog.a-eon.biz/blog/

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

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