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Kiwi - a 68k Homebrew Computer • EmuTOS - Page 3
Page 3 of 4

Re: EmuTOS

Posted: Mon Jul 07, 2014 7:43 am
by HiroProX
IIRC, EmuTOS is based on the sources for DRI GEM that were open sourced awhile back. The actual GEM sources might be a good starting point for building a VDI driver.

Re: EmuTOS

Posted: Mon Jul 07, 2014 8:33 am
by simon
That's correct, but the original sources don't compile with GCC. You would have to use the original toolchain.

Btw GEM itself isn't the problem. It is part of EmuTOS already and doesn't relay on specific hardware. The layer under GEM (hardware driver, VDI) has to be ported or re-created to provide GEM access to the actual gfx hardware. I think, the fVDI is the way to go as it's design provides support for different drivers already.

Unfortunately I hadn't the time to proceed my work on this as I have been completely busy with creating the Kiwi kits in the last three months.

Re: EmuTOS

Posted: Sun Oct 28, 2018 11:50 am
by simon

Re: EmuTOS

Posted: Mon Oct 29, 2018 11:29 pm
by marvin
Looks great on the screenshots :D

Re: EmuTOS

Posted: Tue Oct 30, 2018 10:54 am
by simon
Thank you! Much work to do though...

In addition to the hardware acceleration I think about changing the (default) resolution. Compare the hi-res mode of the Atari ST with B5 mode of the V9990. We should be able to run the native hi-res 640x400 resolution but with 16 colors. The drawback is, B5/B6 modes need a multiscan/VGA monitor. With usual 15KHz monitors we could might use B4 mode (maybe interlaced) to achieve Atari's hi-res specs.

Simon

Re: EmuTOS

Posted: Tue Oct 30, 2018 7:38 pm
by simon
This is how it could look like at 640x400... :)

EmuTOS_fVDI3.jpg
EmuTOS with fVDI preview 3

Re: EmuTOS

Posted: Fri Nov 02, 2018 5:02 pm
by simon
After a bit more work, fVDI now runs at reasonable speed and is quite useful. Even without patterns and a few bugs.
But see...

EmuTOS_fVDI4.jpg
EmuTOS with fVDI preview 4
EmuTOS_fVDI5.jpg
EmuTOS with fVDI preview 5

EmuTOS_fVDI6.jpg
EmuTOS with fVDI preview 6
EmuTOS_fVDI7.jpg
EmuTOS with fVDI preview 7

EmuTOS_fVDI8.jpg
EmuTOS with fVDI preview 8
EmuTOS_fVDI9.jpg
EmuTOS with fVDI preview 9

Re: EmuTOS

Posted: Tue Nov 06, 2018 4:40 pm
by SteveMoody
I've never had an Atari ST so I don't know much about TOS but it's looking good in the screen shots at least :)

Re: EmuTOS

Posted: Tue Nov 06, 2018 5:44 pm
by simon
Me neither. I am a C= boy from VIC-20 to C-64 and Amiga finally. :=) I may have started with EmuAmigaDOS/Workbench if that would exist... ;-)

At least our Kiwi can display 16 colors instead of monochrome at 640x400 compared to the Atari ST.

Give me another week or two to submit all to the SVN. I consider to wipe the existing EmuTOS repo as I started from the scratch with a new checkout of the original repository.
I've had a hard learning curve of the VDI internals and I want to add some more features like "pattern fills" and "changing mouse pointer GFX" before releasing a first version.
Probably resolution changing would be essential as well. Not everybody might be able to use 25kHz or 31kHz video modes...

Last but not least another little teaser. If you have a scientific background you probably have experience with LaTeX. Well, Kiwi can be used to edit your LaTeX documents from editing to DVI preview... Printing will be a topic for later though...

Kiwi-TeX1.jpg
Texteditor

Kiwi-TeX2.jpg
LaTeX run. EmuCON still thinks it runs at 512x200...

Kiwi-TeX3.jpg
DVI preview of the final document.

Re: EmuTOS

Posted: Wed Nov 07, 2018 5:13 pm
by marvin
Hi Simon,

really great work.

Never have thought of using LaTeX on a Kiwi, this is unbelievable :)

Cheers
Marvin