> > Well the hard-drive is currently undergoing timing testings to try and work > out why I'm getting spurious data reads back if I don't read the DRQ bit > between each data read. Time to build up a new prototype I think. Nev's hard
Well...the problem solves itself if you read DRQ between each data read, eh? ;) > drive isn't much further along either - I've heard that this is because he's > relying on being able to write the DOS in SAM C (he doesn't like machine > code). Also, he's recently hit problems with his interface seemingly being > only compatible with the first drive he tested... probably the same probs > that we've been having.... > > As for the DOS, I'm designing new instructions, and trying as hard as > possible to work out how to make the DOS sectional so that you can use BOOT > 1 for a mini-just-get-it-going DOS, BOOT 2 if you want all of the extras > (BOOT 2 will be a 32k dos, boot 1 a 16k one). > > If anyone has any ideas for new DOS commands, and/or hook codes I'd be more > than happy to hear them. I'm also going to try to put in support for Steve > Taylor's LOAD * command too, if I ever get around to hacking his code. Time > is short, alas. commands: Why not give it the BASIC-commands you can find in MasterDOS, GDOS, SAMDOS, and whatever else and give them a UNIX feel? Like piping, redirection and stuff like that. LOAD without "" would be nice, giving only the filename insted of LOAD "filename" would also be nice. Keyword/ filename completion with TAB would be cool too :) hook codes: I'm quite sure you'll be able to get the most esensial ones. One important aspect is to make them generic enough, say so you can write anything from one byte to maxMB to one file and decide if you want to overwrite or append. It would also be nice if there were as few file types as possible, and that you can do exactly the same operations on all types. It would also be interesting to have the ports act as files so that you could 'save' to the printer-port to print stuff. Not highly original, but though.... My 5 øre. -Frode
