Search found 1121 matches

by tofro
Thu Oct 19, 2017 6:12 pm
Forum: Hardware
Topic: test_task won't copy to DOS4_ on QPC2
Replies: 14
Views: 787

Re: test_task won't copy to DOS4_ on QPC2

Probably the best solution is for us all to be aware of WHY this executable file problem occurs in the first place, but I guess I will never see the day when nobody downloads a file from my site, unzips it in Windows then claims the zip file is broken. The easiest for this would maybe be a disclaim...
by tofro
Thu Oct 19, 2017 11:04 am
Forum: Hardware
Topic: Announcement - new QL Interface
Replies: 211
Views: 19457

Re: Announcement - new QL Interface

Nice.

Note the BOOT included in the starter1_zip zip file (that seems to be intended to go to WIN1_BOOT) will not work on ROM versions before JS. It loads SuperBASIC extensions and tries to use them in the very same Basic program - This will not work on JM and earlier.

Tobias
by tofro
Tue Oct 17, 2017 11:08 pm
Forum: Software & Programming
Topic: Text87plus4 and QPC2
Replies: 9
Views: 501

Re: Text87plus4 and QPC2

I can probably manage at the moment in QL mode as I'm after the content of my documents as oposed to the colours, but thanks again anyway. It doesn't get [any|a lot] nicer with more colours. And is just as awkward to operate. I bought text87 when I started to envy my brother who had Signum 2 for th...
by tofro
Mon Oct 16, 2017 7:11 pm
Forum: Software & Programming
Topic: Text87plus4 and QPC2
Replies: 9
Views: 501

Re: Text87plus4 and QPC2

Norman, File sizes seem OK. My Text87_exe has 116850 bytes, Plus4Setup 40530 High-color-patched t87 is several ks bigger. I cannot seem to get to run plus4Setup on QPC (on Windows) either. Simply does nothing, even in 512x256. I do remember I could only use recon to configure plus4. I somehow seem t...
by tofro
Mon Oct 16, 2017 12:57 pm
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 36
Views: 2756

Re: Microdrive Unit Design

The only device that copied the technical principles of Sinclair's Microdrives was the Rotronics Wafadrive for the Spectrum that came on the market at about the same time. I have never owned one, but from tests it was bulky, even less reliable than original Microdrives and cartridge supply for those...
by tofro
Sun Oct 15, 2017 10:02 pm
Forum: Hardware
Topic: test_task won't copy to DOS4_ on QPC2
Replies: 14
Views: 787

Re: test_task won't copy to DOS4_ on QPC2

How many times does this have to be repeated on the QL scene? The better solution would be to ensure that all emulators and QLs supported the q-emulator method of saving direct to (and of course loading / executing from) DOS formatted devices so that those new to the QL scene (or returning after ma...
by tofro
Sun Oct 15, 2017 1:44 pm
Forum: Hardware
Topic: test_task won't copy to DOS4_ on QPC2
Replies: 14
Views: 787

Re: test_task won't copy to DOS4_ on QPC2

Copying executables to non-QDOS media looses the file header information and thus makes it impossible for QDOS to run them as executables. Either use zip and unzip to transfer (this retains file header information) or rebuild the file header on the target with the below one-liner: a = alchp (<flen>)...
by tofro
Fri Oct 06, 2017 6:03 pm
Forum: Hardware
Topic: Microdrive Unit Design
Replies: 36
Views: 2756

Re: Microdrive Unit Design

Actually, the tape would need to run slower to get a higher density (less amount of tape runs by the head in the same time interval) and, thus more sectors. I'm not sure how much the length of tape varied between different cartridges, but, as Dave said, were already pretty much at the theoretical li...
by tofro
Fri Oct 06, 2017 8:53 am
Forum: Hardware
Topic: Q68 Advance Notice
Replies: 68
Views: 4421

Re: RE: Re: Q68 Advance Notice

Envoyé de mon XT1650 en utilisant Tapatalk What is the technology / chip used for the sound ? How is it connected to the CPU and RAM ? Is it a buffer system to fill in with the processor, and then its contents is read under DMA ; or sthing completely different ? Has it got any kind of software supp...
by tofro
Thu Oct 05, 2017 8:47 pm
Forum: Hardware
Topic: QL Vision monitor has a blank screen.
Replies: 5
Views: 371

Re: QL Vision monitor has a blank screen.

Fortunately, you seem to show a bit of healthy respect for the innards of a monitor - Yes, that can be terribly dangerous for the layman. 15 years ago, I would have bet the average TV repair guy should be able to repair that beast with the help of a circuit diagram (is on Dilwyn's site, I think). To...

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