64kib

07/15/2017

09:47 PM EclaireXL Bug #25: F10 Hard Reset Ignore inserted cartridge (Core v7)

This is the last thing remaining for V15. In order to do it (simply) I decided to allow off PBI access from turbo mod... foft

09:44 PM EclaireXL Bug #25 (In Progress): F10 Hard Reset Ignore inserted cartridge (Core v7)

foft

07/09/2017

01:25 PM EclaireXL Feature #24: A board with Atari SOUL!!!! (ROM in block ram support)

I'm using block ram in the FPGA for the OS ROM and BASIC. It can be read in 2 cycles and written to in 1 cycle. SDRAM... foft

07/07/2017

09:26 PM EclaireXL Feature #24: A board with Atari SOUL!!!! (ROM in block ram support)

Also of course nice and fast vs uncached sdram...
sysinfo fp test from 6x->20x :-) I probably need a cache to get... foft

09:13 PM EclaireXL Feature #2: PBI support

Added antic refresh cycles foft

07/06/2017

09:28 PM EclaireXL Feature #51: Debug port

I have a first cut of this building. This will be part of the v15 core.
Next I need to build the capture software ... foft

07/05/2017

09:41 PM EclaireXL Bug #49 (Closed): CORE13 - NTSC/PAL switching

foft

09:40 PM EclaireXL Bug #49: CORE13 - NTSC/PAL switching

Fixed, will be in v15 when I release it. foft

07/04/2017

09:31 PM EclaireXL Bug #49: CORE13 - NTSC/PAL switching

Trying to fix this one, but its nasty. I need more brain cycles to fix it... foft

09:29 PM EclaireXL Feature #14: Svideo core for first prototype

Hmm, just reading that IRE is _relative_ so that might be why increasing voltage didn't make anything brighter!!
h... foft

07/02/2017

10:50 PM EclaireXL Feature #14: Svideo core for first prototype

For anyone with composite/svideo setup. Please can you tell me what you think of svideo_gtia6.sof vs the previous ver... foft

11:42 AM EclaireXL Feature #14: Svideo core for first prototype

I mean svideo and composite, it's the same thing pretty much.
I've got the gtia style one running pretty well for... foft

01:10 PM EclaireXL Bug #54: GTIA issue when Turbo > 4X

Yeah, this kind of test program is very helpful. Thanks. foft

07/01/2017

05:05 PM EclaireXL Feature #14: Svideo core for first prototype

That works, kind of! Basic screen and star wars shields look the correct colours, but I have no red. Also very grainy... foft

12:59 PM EclaireXL Feature #14: Svideo core for first prototype

Writing an 'atari-style' implementation instead of going via RGB. Fixed saturation, simple phase shift for colour. foft

07:10 AM EclaireXL Feature #14: Svideo core for first prototype

Interesting...
http://atariage.com/forums/topic/29621-atari-video-circuits-experiment/
So fixed saturation (exc... foft

03:59 PM EclaireXL Feature #53 (Closed): Add version number to settings

Add version number to settings foft

06/30/2017

10:15 PM EclaireXL Bug #52: Atari Control Picture

I checked an older core in case I introduced it with the antic timing changes for pbi. Was bad then, so unrelated.
... foft

10:10 PM EclaireXL Feature #14: Svideo core for first prototype

Added a poke 712,15 for comparison of max values. Interesting how the amplitude for basic 'blue' is so much higher ye... foft

09:54 PM EclaireXL Feature #14: Svideo core for first prototype

I mean see how the 'white' on ready already takes most of the range, without trying to increase it. foft

09:54 PM EclaireXL Feature #14: Svideo core for first prototype

Atari
!composite_atari_basic.png!
Eclaire
!composite_eclaire_basic.png!
We have a range of 0-1v on the DAC. 0... foft

09:50 PM EclaireXL Feature #14: Svideo core for first prototype

Added traces of Atari basic from the scope, to see the voltage level differences.
Eclaire is driving my monitor, A... foft

06/29/2017

08:59 PM EclaireXL Bug #49: CORE13 - NTSC/PAL switching

I think I've identified the problem. If the zpu happens to exit the menu at the end of an 'original' cycle the pbi lo... foft

06/23/2017

07:27 AM EclaireXL Feature #11: Non-uk keyboard support (custom keyboard mapping)

It's written in c. The Atari core is built with a DMA port and the ability to freeze the 6502. Outside that there is ... foft

06/22/2017

09:12 PM EclaireXL Feature #11: Non-uk keyboard support (custom keyboard mapping)

Yeah, that should work. You just described a multiplexor btw.
Got guests this weekend, so will do the plumbing nex... foft

06/21/2017

09:02 PM EclaireXL Bug #33: Wizard of Wor

I'm going to build a debug tool to make it easier to track these things down.
For now, a workaround. Use 2x turbo ... foft

08:56 PM EclaireXL Feature #11: Non-uk keyboard support (custom keyboard mapping)

I put up a build with your mapping as ansikbd.sof in the usual place. Let me know if it works as expected please. foft

09:44 AM EclaireXL Feature #11: Non-uk keyboard support (custom keyboard mapping)

Thanks
11 is left alt
extended 11 is right alt - I use 1xx for extended xx.
I'll build a test core with your c... foft

06/20/2017

07:41 PM EclaireXL Feature #11: Non-uk keyboard support (custom keyboard mapping)

What is an a8k file? Is there already a keyboard mapping file format we can use? foft

07:36 PM EclaireXL Feature #14: Svideo core for first prototype

Worth a read for some background: http://codeandlife.com/2012/10/09/composite-video-decoding-theory-and-practice/#mor... foft

07:12 PM EclaireXL Feature #51 (New): Debug port

I'm finding it hard to track down issues in some games/programs. Output debug information so I can look into the prob... foft

07:08 PM EclaireXL Feature #2: PBI support

Hias tried out PBI on the v1.
Surprise: Turbo freezer didn't work! Mine works perfectly on v2...
He investiga... foft