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From 06/16/2017 to 07/15/2017

07/15/2017

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

07/09/2017

01:25 PM 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

11:05 PM Feature #24: A board with Atari SOUL!!!! (ROM in block ram support)
??? What you mean here? sadosp
09:26 PM 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 Feature #2: PBI support
Added antic refresh cycles foft

07/06/2017

09:28 PM 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 Bug #49 (Closed): CORE13 - NTSC/PAL switching
foft
09:40 PM Bug #49: CORE13 - NTSC/PAL switching
Fixed, will be in v15 when I release it. foft

07/04/2017

09:31 PM 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 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

07/03/2017

06:42 AM Feature #14: Svideo core for first prototype
Stephen wrote:
> Hate to be a dunce - where is the documentation for cabling s-video from this board?
You can us...
sadosp
12:31 AM Feature #14: Svideo core for first prototype
foft wrote:
> For anyone with composite/svideo setup. Please can you tell me what you think of svideo_gtia6.sof vs t...
Stephen

07/02/2017

10:50 PM 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 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 Bug #54: GTIA issue when Turbo > 4X
Yeah, this kind of test program is very helpful. Thanks. foft
05:54 AM Bug #54: GTIA issue when Turbo > 4X
Thanks Stephen!
sadosp
03:46 AM Bug #54 (Closed): GTIA issue when Turbo > 4X
I'm attaching a BASIC listing of a PMG test program I wrote to assist in diagnosing an issue with the 1088XEL. For f... Stephen

07/01/2017

06:43 PM Feature #14: Svideo core for first prototype
sadosp wrote:
> Maybe is time to think about implementing one external RGB -> composite/s-video converter, fit direc...
Stephen
05:31 PM Feature #14: Svideo core for first prototype
Maybe is time to think about implementing one external RGB -> composite/s-video converter, fit directly to VGA output... sadosp
05:05 PM 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 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 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 Feature #53 (Closed): Add version number to settings
Add version number to settings foft

06/30/2017

11:30 PM Bug #52: Atari Control Picture
foft wrote:
> I checked an older core in case I introduced it with the antic timing changes for pbi. Was bad then, s...
Stephen
10:15 PM 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 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 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 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 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

11:30 PM Bug #52 (Closed): Atari Control Picture
CORE14, PAL & NTSC exhibit the same behaviour. When displaying the attached Atari Control Picture, the colour blocks... Stephen
08:59 PM 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

06/27/2017

07:54 PM No news
No news, I've been ill but am almost better!
Is anyone still alive here?
On an unrelated note found this artic...
foft

06/23/2017

07:27 AM 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
04:31 AM Feature #11: Non-uk keyboard support (custom keyboard mapping)
Okay, sounds great. So, is the system menu actually an Atari program or is it VHDL code?
917k

06/22/2017

09:12 PM 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

11:30 PM Feature #11: Non-uk keyboard support (custom keyboard mapping)
Mark,
It works great! Very Cool! Thank you for the test build. If we can add a toggle to the system menu and assig...
917k
08:56 PM 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 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
02:55 AM Feature #11: Non-uk keyboard support (custom keyboard mapping)
Rethinking this, I'm not sure if we need to have a user-mappable keyboard at all as long as we have support for both ... 917k
02:37 AM Feature #11: Non-uk keyboard support (custom keyboard mapping)
TEST 917k
12:06 AM Feature #11: Non-uk keyboard support (custom keyboard mapping)
I would say just use a text file, it's easier to create/edit. Also, The EclaireXL could have keys that have no equiva... 917k
09:02 PM 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

06/20/2017

09:41 PM Feature #2: PBI support
Excellent! sadosp
07:08 PM 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
07:51 PM Feature #11: Non-uk keyboard support (custom keyboard mapping)
its keyboard mapping from ATARI800WIN Emulator, see attached file ndary
07:41 PM 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 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 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

06/17/2017

08:17 AM Feature #11: Non-uk keyboard support (custom keyboard mapping)
i think reading a key-map file from the SD CART is a good idea, an a8k file? if the key-map file is corrupt or missin... ndary
05:08 AM Feature #11: Non-uk keyboard support (custom keyboard mapping)
foft wrote:
> Computer generated c code for TK2 is here: http://atariage.com/forums/topic/263044-developerstesting-r...
917k
 

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