archive.worldofdragon.org

I have the 64-bit version of xroar up and running under Win 8 Pro without problems. I used the distribution in xroar-0.29.4-w64.zip, unpacked it to an empty directory and just added my selection of Dragon ROM files. No problems at all.

-- Rolf

However, writing to the EPROMs from the Dragon does not seem to be working - not sure at this point whether the rom is too slow (need to try with SRAM but I don't have any right now) or whether I've made a mistake somewhere. You will not be able to write to an EPROM in that way. The EPROMs need a h...

As far as I'm aware, the only information ever published about the Dragon 64's Serial port is on pages 335 to 339 of Inside The Dragon , and pages 4 to 6 of the Dragon 64 supplement . It is also tremendously useful to have a copy of the datasheet for the ACIA chip handy when doing any serial port p...

I have made a cable to connect a Dragon to a PC. I connected the Dragon DTR signal to both the DSR and CTS signal on the PC end. Dragon CTS was connected to PC RTS. With this setup it is straight forward to use CTS/RTS flow control on the PC and it usually works "as expected" on the Dragon. -- Rolf

Now also available from the downloads section. Great stuff!

-- Rolf

I've just made Dragon Tools 0.3 available for download. This release adds the options -basic and -native to the DragonDos Write command to add the corresponding DragonDos file headers to files copied from a local filesystem. The release can be downloaded from http://www.rolfmichelsen.com/dragontools...

The DragonDos file header format is documented in the May 1987 issue of Dragon User, which is available from the archive. BASIC and machine code programs have a 9 byte header with file type and vrious metadata. Data files do not have a header.

-- Rolf

Did you use the DragonDos program from the DragonTools distribution to create the disk image? The DragonDos program will always copy files from the host filesystem to a DragonDos filesystem as a data file. I'll add an option to manually add a machine code or BASIC program header to the file. Maybe t...

If you have a problematic file, post it here and somebody will probably figure it out pretty quickly.

— Rolf

I have this tool to cover exactly this case, but it's a Windows .NET binary. Might run under Mono, but that's not tested. If it turns out that the Dragon community is mostly non-Windows, I might consider a port to more portable C++. It's not that much code.

-- Rolf