Search found 566 matches

by stefano
Thu Nov 13, 2014 2:12 pm
Forum: Hardware
Topic: Chroma 81 - SCART and Colour interface for the ZX81
Replies: 158
Views: 100309

Re: Chroma 81 - SCART and Colour interface for the ZX81

How did you make it on the first attempt ??? I'm getting crazy :/ ...by the way that driver is a fantastic piece of code: I'm still trying to figure out how it works :oops: My 136 pixel driver will probably never work well, but it taught me a couple of intersting things about the emulators features ...
by stefano
Wed Nov 12, 2014 3:23 pm
Forum: Hardware
Topic: Chroma 81 - SCART and Colour interface for the ZX81
Replies: 158
Views: 100309

Re: Chroma 81 - SCART and Colour interface for the ZX81

I'm afraid I've been too confident .. the R register does not stay the same for long enough so the picture gets garbled. Also the WRX mod could not react as I expected when I poke on the ghosted locations. Is it possible to run my test program on the real hardware ? The nasty background colors are p...
by stefano
Wed Nov 12, 2014 11:10 am
Forum: Hardware
Topic: Chroma 81 - SCART and Colour interface for the ZX81
Replies: 158
Views: 100309

Re: Chroma 81 - SCART and Colour interface for the ZX81

>I guess Paul just reads the position of DFILE when accessed and mixes the attributes then. >As far as I understood the documentation there is only character map supported in 2 ways (modes): >Defining the color for specific characters - OR - defining attributes for every char position. >I think the ...
by stefano
Tue Nov 11, 2014 9:13 am
Forum: Hardware
Topic: Chroma 81 - SCART and Colour interface for the ZX81
Replies: 158
Views: 100309

Re: Chroma 81 - SCART and Colour interface for the ZX81

There is still one detail I did not get fully. The 32 bytes being "executed" by the WRX driver are just a dummy line. I suppose we also need its ghost copy to put the attributes in ? If so also the 8x8 attribute stuff would require more than 6144+2*768. By "more than" I'm referring to the fact that ...
by stefano
Mon Nov 10, 2014 4:59 pm
Forum: Emulators
Topic: JSZeddy
Replies: 47
Views: 31239

Re: JSZeddy

Well, having coloured WRX helps for 'wall' only, DStar runs well in UDG mode too.
Probably some color-cycling effect in mode 0 would have been better, but this tweak in mode 1 is a bit easier..
by stefano
Sun Nov 09, 2014 9:40 pm
Forum: Emulators
Topic: JSZeddy
Replies: 47
Views: 31239

Re: JSZeddy

It looks very good !
I'm also honoured to see the zxcity demo built with z88dk :)
by stefano
Sat Nov 08, 2014 4:44 pm
Forum: Hardware
Topic: Chroma 81 - SCART and Colour interface for the ZX81
Replies: 158
Views: 100309

Re: Chroma 81 - SCART and Colour interface for the ZX81

Probably it is something I should have understood myself reading your posts and webpage carefully, but.. is there a way to use colors in WRX graphics mode ? 8-)
by stefano
Sat Nov 08, 2014 4:32 pm
Forum: GAMES
Topic: DarkStar 2
Replies: 70
Views: 52891

Re: DarkStar 2

Uh well.. it is a feature but it makes little sense on the "vanilla version", if you don't previously load a redefined font. Check the previous posts and get the UDG version to see some better result, AFAIR it starts in QuickSilva mode, then you can choose the right bank with the number keys. The Dk...
by stefano
Sat Nov 08, 2014 4:26 pm
Forum: GAMES
Topic: Othello (A.K.A. Reversi)
Replies: 8
Views: 6672

Re: Othello (A.K.A. Reversi)

It's very good news, thanks a lot :)
by stefano
Fri Nov 07, 2014 5:04 pm
Forum: Software
Topic: Rom hex file help
Replies: 59
Views: 26183

Re: Rom hex file help

Hello !
I think you can get the rom yourself via the debug procedure I described. It is much easier than it looks.
Use the ROM version you prefer, patch it and test it on EightyOne first.
It is the only possible shot I'm able to suggest (at the moment), and I think it is worth to try.