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Set mapmode0 and reinstate the mapmode0 ROM. Ah, now I have found an explanation in the Inside The Dragon book in "Appendix 5 - The Dragon 64 / SWITCHING IN RAM"... But ok, that is still too far away. Now i would like to implement all for a working Simple6809 setup... If i really accomplished, I'm ...

Where can i download the "Dragon Notebook" published by NDUG (National Dragon Users Group) ?

The links on http://www.os9projects.com/DragonTop/Dr ... nNote.html doesn't work.

Is there somewhere a archive of all publication from NDUG ?

btw. I have paid £17,03 GBP == €20,91 EUR (contins shipping) at betterworldbooks

Well I know a man who has the original source code for the Dragon 32 version - including hand written notes on the print out........ However when last contacted he wasn't about to let that fall into our hands due to potential copyright issues. To have that, would be very cool! The CoCo Basic Unrave...

So, i split and refactor many stuff: https://github.com/jedie/DragonPy/compare/6a159fc...4fd0e4b Now it's callable in this way: DragonPy$ ./DragonPy_CLI.py --cfg Simple6809Cfg --verbosity=5 or: DragonPy$ ./DragonPy_CLI.py --cfg Dragon32Cfg --verbosity=5 But there are a few OPs unimplemented for the ...

What's about copyright on Dragon ROM code?
Is there any official statement?

Dragon Data is dead. But the BASIC comes from Microsoft and they sill alive ...

But i think '`' is a "wrong" char, isn't it? It's just what 0x60 is in ASCII. On the VDG 0x60 is an empty character cell. The VDG character set is not a direct ASCII mapping - the BASIC ROM does the interpretation when you PRINT CHR$(...). For intelligable output you'll have to do a certain amount ...

The way I started with XRoar was to have some RAM, load the ROMs and periodically dump the state of 0x0400 - 0x05FF to the console using VT100 escape codes. Then I implemented CPU instructions basically in the order they're encountered in the BASIC ROM (obviously doing the "easy" stuff that was sim...

I ask myself if it's make more fun to start with a simpler hardware. e.g.: http://searle.hostei.com/grant/6809/Simple6809.html So i have only to implement a virtual RS232 interface

Also a repro for magazines:
http://www.colorcomputerarchive.com/coc ... Magazines/