Search found 1298 matches

by Pr0f
Wed Dec 22, 2021 11:13 am
Forum: Hardware
Topic: USB Keyboard IF
Replies: 37
Views: 8064

Re: USB Keyboard IF

Nice project - does it deal with CRTL, ALT and SHIFT keys and combinations of those with other keys - the IPC code has some special cases - particularly with the HERMES IPC replacement - that you may want to handle.
by Pr0f
Thu Dec 16, 2021 9:19 pm
Forum: Online Auctions
Topic: I hate snipers
Replies: 11
Views: 9051

Re: I hate snipers

I hate the auto bid bots. My usual trick if I really want something is to look around to see if anyone is selling the same item - and if so whether there is a buy it now for a sensible price - quite often I'll watch the same thing on several ebay items - and if one goes silly on bidding - I will tak...
by Pr0f
Sat Dec 11, 2021 10:10 pm
Forum: The Off-Topic Section
Topic: Happy Birthday!
Replies: 426
Views: 211641

Re: Happy Birthday!

Happy Belated birthday Dilwyn - it was my partners birthday on the same day! :D Hope you had a good one!
by Pr0f
Mon Nov 29, 2021 7:34 am
Forum: Hardware
Topic: 720K floppy and trump card
Replies: 3
Views: 1275

Re: 720K floppy and trump card

Or do you mean fool the trump card into thinking the drive is 780K (QL uses a slightly different format so more space is given)? Biggest issue with using the 1.44MB drives is they were mostly meant for the PC market - so come selected as "Drive 1" and use the cable twist between 1st and 2n...
by Pr0f
Wed Nov 24, 2021 7:30 am
Forum: Software & Programming
Topic: Minerva - In need of some help please
Replies: 17
Views: 3655

Re: Minerva - In need of some help please

Nice work :-)
by Pr0f
Mon Nov 22, 2021 5:59 pm
Forum: Software & Programming
Topic: Do the shuffle...
Replies: 3
Views: 862

Re: Do the shuffle...

I was probably going to go for assembler as I'm a glutton for punishment :-) for the 8 bit value - I reasoned that I would be able to loop around 8 times, using the new value of the bit assignment as a mask and decide whether to AND or OR the bit to set it's value based on the original value. I was ...
by Pr0f
Mon Nov 22, 2021 11:55 am
Forum: Software & Programming
Topic: Do the shuffle...
Replies: 3
Views: 862

Do the shuffle...

I have a question relating to bit reordering in a byte / word or even long word. I have seen algorithms to swap one value for another by using XOR technique, and also algorithms to swap bits in the byte or word from lowest to highest and vice versa (reversing the bit pattern). What I want to achieve...
by Pr0f
Thu Nov 18, 2021 8:19 pm
Forum: Software & Programming
Topic: NOOB QUESTION: learning machine code
Replies: 38
Views: 6318

Re: NOOB QUESTION: learning machine code

And with some good examples too :-)
by Pr0f
Thu Nov 18, 2021 8:10 pm
Forum: Software & Programming
Topic: NOOB QUESTION: learning machine code
Replies: 38
Views: 6318

Re: NOOB QUESTION: learning machine code

you'll probably need more than one book - as there's 68000 assembly programming - and then there's the specific application of programmming 68008 code on the Sinclair QL. The book Dilwyn mentions is a good one, for more general techniques I found the cybex "Programming the 68000" a useful ...
by Pr0f
Fri Nov 12, 2021 12:00 pm
Forum: Software & Programming
Topic: Minerva - In need of some help please
Replies: 17
Views: 3655

Re: Minerva - In need of some help please

Dilwyn has a useful list of some of the ROMS associated with the QL and it's peripherals - there are some Sandy ones amongst the list:

http://www.dilwyn.me.uk/qlrom/index.html