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I think the easiest way around that would be to save a copy of the LINKER onto a different cassette, then you won't need to be careful when you stop, eject and later replace the SPRINT tape. Instead, you could simply insert the second cassette when needed. The split archive on this site could assist...

I used this one from WHSMITH (long since discontinued but popular at the time); it works well with the Dragon! http://img842.imageshack.us/img842/8283/724066977499d256f6b7z.jpg The packaging looks like this: http://img854.imageshack.us/img854/2373/dsc08446s.jpg PS. You can avoid the problems with SP...

It randomises the RND() function, i.e. sets an initial random number seed using the TIMER value (which is a 50Hz counter, so it'll tend to have a different value each time the program is RUN). This is a standard way to make the pseudo-random numbers returned by RND() unpredictable in practice (rathe...

Cool - good luck!

If you desire some non-volatile memory, I'd recommend incorporating an EPROM or similar for that purpose, as my results with a battery were kinda disappointing (alternatively I expect there's plenty of scope for improvement on my design).

Yes, the Shift+# is working OK but its only working in 'Real Mode' rather than 'PC Mode' like T3 and XROAR. Yes, only in 'Real Mode' however it's not possible to directly compare with T3 in that way (don't know about XROAR). The 'PC Mode' in PC-Dragon refers to usage of MS-DOS for reading the keybo...

Okay... think I've got the PC-Dragon development environment working. Looks like it was last built in January 2000, a few months before everything was migrated to the current PC from an even older one. Having spent awhile obstructed by TC complaining that it was unable to find standard include files...

zephyr wrote:Sarah,

Have you abandoned the PC-Dragon fix?

Regards,
Steve

Don't worry, I haven't forgotten about you!

My dev/build environment for PC-Dragon is an elderly real machine. I'll need to spend some time discovering whether it's still working and comprehensible..!

I had to go into the loft this morning, so hunted down my Dragon (still the only one I've ever owned) whilst up there and snapped some pictures. Here's a preview - higher resolution photos can be found in the attached zip file. http://img23.imageshack.us/img23/7707/img0053smallf.jpg Incidentally, al...

That sounds amazingliy interesting, do you have by any chance any schematics or pictures of that cartridge-based Ram expansion? Let's see... yep, found my 20 year old notes! They're horribly messy - everything is hand scribbled - however I've scanned and attached them all for you anyway. They also ...

Dragon Answers in the March 1988 issue of Dragon User has some information about creating a cartridge based RAM extension. So is it possible to to create a cartridge that contains both RAM and a stored program (or programs), and where the program can make use of the additional RAM? Yes, certainly. ...