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Old 20 June 2003, 22:39   #1
Falk
 
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native x86 code in WinUAE?

Hi!

Is it possible to develop amiga programs, libraries, datatypes ... which are able to execute directly x86 code in WinUAE to get more speed .. like in Amithlon f.i.? And if .. is there existing such software yet?

If WinUAE doesn't support this yet - is it planned for the future? Like on real Amigas with PPC processor for instance where software over WarpOS could directly execute PPC code.

Greetings
 
Old 21 June 2003, 02:42   #2
RoKo
 
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An Amiga program can call Windows DLLs.
Bernd Roesch's video player/recorder does it (on the WinUAE download site).
And my QuarkTex does it.
 
Old 21 June 2003, 20:14   #3
Falk
 
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sounds great

the QuarkTex is nice, respect .. and works good .. there is only a white small box around the mouse pointer on every Warp3D application I tried.

hmm .. I want to have some datatypes native f.i. JPEG to get more speed .. since I've installed OS 3.9 under WinUAE its lame .. and for browsing.
is it possible? I have no really idea cause I have no experiences in Windows coding.
 
Old 22 June 2003, 00:50   #4
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I've been wondering about this too - I see that it is possible and I'm interesting in writing programs to make use of it myself, but I've haven't been able to find much at all about how to do it. I did find http://www.winuae.net/files/winuae_vidrec.lha which contains some source, but isn't enough to make sense to me (assembly language mixed in with BlitzBasic isn't something I understand well..)

Does anyone have any pointers to some documentation or examples?
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Old 22 June 2003, 17:21   #5
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Okay, I've now managed to work out how to call Windows DLLs from Amiga programs using a mixture of C and assembly (is it possible to do it in pure C?), so I guess it wasn't too hard at all

But some things are still eluding me. Like how does one get access to the "winuae" struct (in order to then access the Amiga's memory directly) from the Windows DLL - the documentation says the pointer is stored in a6, but surely that's an Amiga register, and I have no idea how to access that from Windows?

Also the documentation suggests that it is possible to access function variables in the DLL from the Amiga side, but I can't work out how to do that. What do I do with the "variable name address" once I have it?

thanks in advance for any help..
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Old 22 June 2003, 18:18   #6
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This whole DLL calling thing is a bit problematic, cause WinUAE stops while the DLL code runs.
But I can send you some .c and .h files to use it
Have to write some documentation about this...

Amithlon uses some neat tricks to execute x86 code. It can even run AmigaOS controlled without breaking the multitasking.
Basically, it treats all code that starts at an odd address (68k always starts at even addresses) as x86. There is a Linux GCC cross-compiler for this.
I don't know if somebody will implement this in UAE anytime soon.
 
Old 22 June 2003, 18:59   #7
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Some source code would be very helpful please (my email is mark dot harman at ntlworld dot com if you want to email them).

That's interesting to know about Amithlon.. I was wondering if it had advantages over WinUAE for this.

thanks..
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Old 23 June 2003, 03:45   #8
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Thumbs down

Quote:
Originally posted by RoKo
Amithlon uses some neat tricks to execute x86 code. It can even run AmigaOS controlled without breaking the multitasking.
Basically, it treats all code that starts at an odd address (68k always starts at even addresses) as x86. There is a Linux GCC cross-compiler for this.
I don't know if somebody will implement this in UAE anytime soon.
NO, unfortunately this is impossible!
Amithlon is commercial, paid software, whereas UAE is under the GPL!
It wouldn't be possible to rip parts of this copyrighted code and still say, "UAE is under GPL".
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Old 23 June 2003, 03:50   #9
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Quote:
NO, this is impossible!
I'm not sure how you mean. I presumed he meant reimplementing the feature, rather than stealing from the source code directly..

And if you did want to use the source code directly, then either it would be done with permission of the author, which would be fine, or it would be without permission, which would be illegal. But either way, whether UAE is GPL or not doesn't really make a difference.
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Old 23 June 2003, 22:05   #10
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Quote:
I'm not sure how you mean. I presumed he meant reimplementing the feature, rather than stealing from the source code directly..
Right.
I do not have the Amithlon source anyway, cause it's a commercial program, you know
 
Old 12 June 2008, 09:35   #11
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ha ha found a nice old thread to bring back alive

as I run winuea on a fairly powerful pc I would like to take advantage of it from within workbench. I personlay see this as the way forward for the Amiga as emulation comes of age, (nice 1 Toni)

Until then dose someone have a list of programs that use x86 code from AmigaOS?
or anyideas as how the exploit the pc, like useing its internet connection is great but I`m sure we could use more of the hardware for our favorite OS

ponder ponder ponder ......
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Old 12 June 2008, 22:31   #12
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@RoKo

Could you put your example C source that lets this work in WinUAE in the zone please?
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Old 12 June 2008, 23:47   #13
Graham Humphrey
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Given that this guy is no longer a registered member and the post he made was almost five years ago, I would think the chances of him seeing your request are rather slim. But then again, I guess you can never quite tell
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Old 13 June 2008, 08:29   #14
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I notice that Roko is also the author of QuarkTex. I wonder if he's still developing it? It's not been updated for a while.
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Old 14 June 2008, 03:28   #15
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Some of us are still receiving emails from this thread

I figured out the problems I was having - I made a simple program WinLaunch (util/misc on Aminet - http://us2.aminet.net/util/misc/winlaunch.readme ), which comes with the source code if anyone is interested.

I'd also recommend looking at Bernd Roesch's TV-Watcher/Videorecorder, which comes with some source too.
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Old 14 June 2008, 12:58   #16
Toni Wilen
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Personally I don't like this interface at all, it can be used for bad things too easily in my opinion..
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