Activity

foft's activity

From 06/28/2017 to 07/27/2017

09:06 PM EclaireXL Bug #56: Galaxian Cartridge crash: This works on the latest core I'm using (lets call it v15 - address decoder rework!) foft

08:14 PM EclaireXL Feature #55 (New): Replace main CPU: I really find the stack based zpu annoying to debug. Also as its setup the rom is full.
Consider replacing with so... foft

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

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

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

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

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

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

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

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

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

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

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