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Hi All
I was looking at the lowercase daughter board on www.dragonplus-electronics.co.uk and noticed some Xroar screenshots showing it in action. How is this done in Xroar?
Cheers
Garry

megagarrym wrote: ↑Thu Sep 14, 2023 12:49 pm I was looking at the lowercase daughter board on www.dragonplus-electronics.co.uk and noticed some Xroar screenshots showing it in action. How is this done in Xroar?

You need a ROM formatted in the same way as the one in the Dragon 200-E, which is:

ROW 0 CHAR 0, ROW 0 CHAR 1, ... ROW 0 CHAR 255
ROW 1 CHAR 0, ROW 1 CHAR 1, ... ROW 1 CHAR 255
...
ROW 15 CHAR 0, ROW 15 CHAR 1, ... ROW 15 CHAR 255

So that's a 4K ROM containing data for each of 256 characters a row at a time.

Rows 12-15 won't be accessed, and chars 128-255 will be semigraphics anyway, so there's a bunch of wasted space.

Anyway, use it in XRoar using the option:

Hi Sixxie
Thanks for that. I suspect that creating the ROM will be beyond my capabilities. I tried using the ROMs from the DragonPlus website with no success. I'll stick to upper case for now.
Cheers
Garry

Your problem may be that the ROMs provided contain multiple fonts, and the first in each case is the stock 6847 font, so you'd never notice a difference.

I've broken them out into 4K ROMs here, you can try each in turn.

Thanks Sixxie, I'll give that a go and report back.

Success!!
Many thanks Sixxie, this is incredible.
My Xroar shortcut is something along the lines of C:\xroar\xroar.exe -ext-charset "C:\xroar\ext-charset-03.rom"
The next quest for any clever person out there is to make it so we can use the shift key normally rather than the old shift+0 switch.

Thanks again, I think that's at least 2 pints I owe you now.
Garry

You can download the character ROM sets from the product support page on Dragonplus Electronics. https://www.dragonplus-electronics.co.u ... downloads/

You'll need to break these up into 4KB files, to create a file for each character set. I use a hex editor called FRHED to do this, set to 256 byte display width. The description is in the ASCII representation of the data to the right hand side.