What the fastest possible x64 emulation way of OS4 today ?

@Joerg
Quote:

But at least if it run's before on amigaos4 (i remember it too, it surely were working half way), it can be fixed. At least on aminet i surely see scout_os4 from 2006 and scout_src.

EDIT: i just loose hours to build scout over latest amigaos4 SDK, only to realize that even old os4 binary of scout from 2006 year runs fine and not hitting DSIs all over place a Joerg expect.. So not sure if there needs for releasing it ?

@Balaton
The one thing i don't understand for now : If public boardinfo.h didn't contain many things and those needs to be reconstructed, then how it is expected that anyone writing GFX drivers will be able to know where to feed p96 struct so it will take driver's DCC/EDIT way, and build own mode list if there is no .icon file present ? I mean, currently all i know that it placed on in boardinfo structure like this:



But then, how other developers should know about ? And P96 from Icomp coming with all the developer archive, there probably expected that anyone can wrote a driver which will feed the p96 correctly ?

On the Icomp wiki doc at https://wiki.icomp.de/wiki/P96_Driver_Development i didn't find any mention of "do that and that, so when you have no .info file, p96 can be feed with the mode table taken by driver's DCC/EDID". Like, you shouldn't do that at all and rely only on .info files ?

I mean what the point to have it closed from hyperion, and what the point to not describe it on Icomp's docs ? Like, we should't ever build our own modes, or having EDID/DCC code in driver, and should only rely on the .info monitor tooltype, and when there is none , to have just one single fallback to VGA: Productive ?

Just trying to understand the logic behind all of this.

@kas1e
Hyperion has the rights to the OS 4.x/PPC version of P96 (next to nothing of it is used anymore, except for the .chip and .card APIs and the PIP/overlay functions in Picasso96API.library, everything else of it was re-implemented in the OS 4.x graphics.library instead), Individual Computers the rights to the OS <= 3.9/m68k version.
I very much doubt the extensions to the old Picasso96 versions from Tobias Abt added in both of them are compatible, i.e. you can't use anything from newer IComp p96 versions on AmigaOS 4.x.

Until recently there were only 3-4 developers who implemented AmigaOS 4.x/PPC p96 drivers, the Frieden brothers (ATIRadeon, I'm not sure but maybe Permedia2 and/or updates in the Voodoo 3/4/5 driver as well), Hans de Ruiter (RadeonHD and RadeonRX) and ACube (siliconmotion502), and all of them had access to the AmigaOS 4.x sources incl. developer includes like the extended boardinfo.h.
All other p96 drivers included in AmigaOS 4.x are just the ancient, and in most cases unmodified m68k, drivers from Abt's p96 versions not supporting any AmigaOS 4.x additions like compositing or DDC/EDID.

Edit:
https://wiki.icomp.de/wiki/P96_Driver_Development doesn't contain neither "DDC nor "EDID".
https://wiki.icomp.de/wiki/P96 does include "EDID" once: P96Prefs, not the .chip or .card drivers.
Are you sure IComp's versions of p96 support DDC/EDID at all in it's .chip drivers?

@joerg
let's continue gfx-drivers discussion there if you doesn't mind:
https://www.amigans.net/modules/newbb/viewtopic.php?post_id=160785

@kas1e

Quote:
The OS4 version of Scout does crash sometimes, and you need to be ready for that if using it, but more often it safely does nothing when asked to display things that no longer exist or aren't applicable on OS4. I regularly use it as a test and debug tool, though I make sure to save my work first.

Quote:
Just recompiling it using the latest SDK is unlikely to change anything; to fix the occasional crash you'd have to go through it and update any code that is not compliant with OS4 changes since 2006. Without doing that there's probably no point in releasing a newer version.

Assuming you had to make some changes to get it to compile with the latest SDK/GCC, it wouldn't hurt to at least have that version of the source available in case anyone wants to take it on.

@msteed
let's continue there : https://www.amigans.net/modules/newbb/viewtopic.php?post_id=160795