Search found 248 matches

by stephen_usher
Tue Jul 21, 2020 5:26 pm
Forum: The Off-Topic Section
Topic: Today I Received...
Replies: 272
Views: 31768

Re: Today I Received...

OK, not quite today but a few days ago... I got a replacement B&W TV/Radio for the one my Dad got rid of during one of his "clear outs" in the mid-1990s, The same model as we used to have. I've spent the last couple of days cleaning it inside and out, removing 30 year old smoker's tar ...
by stephen_usher
Tue Jul 21, 2020 5:21 pm
Forum: General QL Chat
Topic: What makes the OS for QL any better, different, unique ?
Replies: 89
Views: 10690

Re: What makes the OS for QL any better, different, unique ?

Personally, I also liked PSION's BASIC, as found on the S3. I LOVE MY PSION 5 mx PRO! And the language is not BASIC, it's named OPL (Organizer Programming Language, later renamed to Open Programming Language) :-) A mobile computer (fits into the inner pocket of a normal jacket) with a much better o...
by stephen_usher
Sun Jul 19, 2020 7:30 pm
Forum: General QL Chat
Topic: What makes the OS for QL any better, different, unique ?
Replies: 89
Views: 10690

Re: What makes the OS for QL any better, different, unique ?

I can see the QL out performing a 4.77MHz 8088, as that's a 8 bit hobbled 16 bit processor too, but not an AT. Having said that, the PC-XT didn't have to drive the screen and interleave memory as I seem to remember that the MGA or MDA card had its own memory and hardware scrolling, so it would seem ...
by stephen_usher
Sat Jul 18, 2020 8:22 pm
Forum: General QL Chat
Topic: ST Basic - inspired by QDOS?
Replies: 7
Views: 867

Re: ST Basic - inspired by QDOS?

I got my 520STM in mid-1988 and I didn't get any BASIC manual, just the green and white one with the very basic how to plug it in and use GEM.
by stephen_usher
Fri Jul 17, 2020 1:26 pm
Forum: General QL Chat
Topic: ST Basic - inspired by QDOS?
Replies: 7
Views: 867

Re: ST Basic - inspired by QDOS?

I think the biggest problem was that although it was supplied with the machine there wasn't a paper manual to support it.
by stephen_usher
Sat Jul 11, 2020 5:47 pm
Forum: Help for New Users
Topic: Peeking/Poking pixels directly
Replies: 6
Views: 781

Re: Peeking/Poking pixels directly

Under QDOS the first screen starts at $20000 always. Seeing as Sinclair used part of the second screen memory for system variables it's highly unlikely to be used. In mode 4 you effectively have contiguous "raster" lines with pairs of bytes containing a bitmap of 8 pixels, the first byte i...
by stephen_usher
Sat Jul 11, 2020 5:24 pm
Forum: Hardware
Topic: vDrive: With MDV sound? I wonder.
Replies: 9
Views: 991

Re: vDrive: With MDV sound? I wonder.

Yes, as it's merely a WAV file which has been converted into a C array of unsigned byte values which is then sent to the chips digital to analogue converter. The sample can't be very long though as the chip only has a small memory for the program. i.e. // Audio encoded as unsigned 8-bit, 8kHz sampli...
by stephen_usher
Sat Jul 04, 2020 10:00 pm
Forum: General QL Chat
Topic: ST Basic - inspired by QDOS?
Replies: 7
Views: 867

Re: ST Basic - inspired by QDOS?

It's a pity that the BASIC itself is so basic and if they did learn anything then it wasn't how to write a good language.
by stephen_usher
Wed Jul 01, 2020 12:05 am
Forum: Hardware
Topic: vDrive: With MDV sound? I wonder.
Replies: 9
Views: 991

Re: vDrive: With MDV sound? I wonder.

I've built the first version of the sound unit today and it does actually work.

The card itself fits nicely under the SD card holder.

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by stephen_usher
Wed Jul 01, 2020 12:00 am
Forum: Hardware
Topic: QL-SD
Replies: 61
Views: 5598

Re: QL-SD

This is going to cause me to change my vote to a single full-SD card as it allows you to have your QL connected wirelessly to a PC. You don't *HAVE* to have a large SD card connector to do this. Merely use and extension cable, which may give you better WiFi signal anyway: https://www.amazon.co.uk/E...