Search found 531 matches

by Martin_Head
Sat May 23, 2015 10:06 am
Forum: Software & Programming
Topic: TCP device
Replies: 8
Views: 2228

Re: TCP device

The idea, and it is purely an idea, was that if you could get two QPC's to talk to each other using the tcp device driver. Then you might be able to get a QL Network going. I was only using SuperBASIC because it's easiest for testing, that I could get them talking. So from what's said above, SuperBA...
by Martin_Head
Fri May 22, 2015 4:03 pm
Forum: Software & Programming
Topic: TCP device
Replies: 8
Views: 2228

Re: TCP device

Thanks for the suggestion. Had a quick look through volumes 6 to 15 on Dilwyn's site, but it did not leap out at me. Might have to look the hard way, but should not have to go to far back as the tcp_ device is quite recent. But mainly I'm interested in trying to get two QPC's talking to each other. ...
by Martin_Head
Fri May 22, 2015 3:15 pm
Forum: Software & Programming
Topic: TCP device
Replies: 8
Views: 2228

TCP device

Has anyone tried/managed to get QPC2 on two networked PC's to talk to each other using the TCP_ device? I know there was an article in Quanta some time ago about using the device to access email, or it may have been Newsgroups (cant quite remember). I've had a quick try, but with no success. If some...
by Martin_Head
Tue May 19, 2015 9:50 am
Forum: Software & Programming
Topic: MDV Low Level Routines
Replies: 122
Views: 23838

Re: MDV Low Level Routines

I don't know of any online sources of information on the data structure of the microdrives and the microdrive map. But there are system vectors $124 to $12A for accessing microdrive headers/sectors. see http://www.qdosmsq.dunbar-it.co.uk/doku.php?id=qdosmsq:vectors:start A couple of the copy protect...
by Martin_Head
Tue May 12, 2015 2:23 pm
Forum: Software & Programming
Topic: QDOS Floppy disk image device driver
Replies: 17
Views: 4773

Re: QDOS Floppy disk image device driver

To my mind (given the caveats as to competency already declared) many of the issues you mention will vanish if you 1) disallow remounting before unmounting any previous mount to a given device number. Surely, that is entirely under your driver's control? 2) Unmounting must be conditional on there b...
by Martin_Head
Mon May 11, 2015 10:33 am
Forum: Software & Programming
Topic: QDOS Floppy disk image device driver
Replies: 17
Views: 4773

Re: QDOS Floppy disk image device driver

The driver should give a 'bad or changed medium' if the image file gets changed 'on the fly'. I will look into it. Considering the way you have implemented the driver, off the top of my head I cant think of a situation where this condition would occur: Presumably the driver for the device the image...
by Martin_Head
Fri May 08, 2015 2:44 pm
Forum: Software & Programming
Topic: QDOS Floppy disk image device driver
Replies: 17
Views: 4773

Re: QDOS Floppy disk image device driver

With regards to QL Disk Interfaces, would FDI work on a Trump Card or other Disk Interfaces that plugin a BBQL. I have not tried it on a real QL. But I see no reason why it should not work. Of course a Trump card only supported up to double density disks, so you could only have a single density (36...
by Martin_Head
Fri May 08, 2015 2:34 pm
Forum: Software & Programming
Topic: QDOS Floppy disk image device driver
Replies: 17
Views: 4773

Re: QDOS Floppy disk image device driver

Your driver's Physical Layer is merely a set of calls to the existing device driver for the medium the image file is on. Is this correct? Youll however notice that on Qdos device drivers dont normally do that. Of course it may be the only solution in this case, since the virtual device is hosted on...
by Martin_Head
Thu May 07, 2015 9:43 am
Forum: Software & Programming
Topic: QDOS Floppy disk image device driver
Replies: 17
Views: 4773

Re: QDOS Floppy disk image device driver

I notice that whenever a drive is mounted a channel to the image file gets opened. This channel does not appear to be entered into the S*Basic channel table, so cannot be closed using CLOSE. Unmounting the FDI closes the channel again. But since it is possible to mount a new image to the same FDI d...
by Martin_Head
Wed May 06, 2015 10:21 am
Forum: Software & Programming
Topic: QDOS Floppy disk image device driver
Replies: 17
Views: 4773

QDOS Floppy disk image device driver

In case anyone is interested, I have updated my FDI floppy disk image device driver, to support HD and ED disk images, and to also support sub-directories. It is based on the SMSQ/E device level 3 driver, and can be download here http://www.dilwyn.me.uk/utils/FDI2Driver200.zip from Dilwyn Jones web ...