archive.worldofdragon.org

Hi - I've got some raw binary data I want to load into Xroar, so I'd like to convert into a DECB .bin file (so I can simply say xroar -load stuff.bin). I've scoured the archive, and I can find almost every other type of conversion tool but this one - I'm guessing it's as simple as adding a few bytes of header info at the start? But I'm struggling to find a spec. I would be ever so grateful if someone could point me in the right direction!

Many thanks in advance, Tony

Hi Tony,
it needs a 5 bytes header and a 5 bytes trailer at the end
The Header is:
- byte 0 -> always $00
- bytes 1-2 -> The Length of the file
- bytes 3-4 -> The Load address

And the trailer:
- byte 0 -> always $FF
- bytes 1-2 -> by now $0000 (maybe intended for Stack value before execution ...)
- bytes 3-4 -> execute address

cheers
pere

Hello Tony,
I wrote the header and trailer that are the CoCo standard.
XRoar loads them into a Dragon emulation with no problems.

But if you wanted to add the Dragon std Header (no trailer)
It has this structure:
Byte 0 -> always $55
byte 1 -> $02 for Binary files
bytes 2-3 - Load Address
bytes 4-5 - Length of file
bytes 6-7 - Execute Address
byte 8 -> always $AA

cheers
pere

Oh, just to let you know Pere, that worked perfectly! Thanks!

glad to know,
you are welcome!

cheers
pere

The best reference for these things are Graham's files at http://dragon32.info/info/