Search found 2408 matches

by Dave
Sun Sep 29, 2019 8:11 pm
Forum: Hardware
Topic: Oki Dot Printer
Replies: 6
Views: 424

Re: Oki Dot Printer

Those printers are quite advanced. It could be a number of things. It defaults to IBM mode and needs setting to Epson mode. It defaults to bidirectional parallel and can be set to input only (it can hang if it sends a job complete message and gets no response) The QL may not be "ending" pr...
by Dave
Thu Sep 26, 2019 12:01 am
Forum: Hardware
Topic: DIY Fpu Unit for STFM
Replies: 28
Views: 3708

Re: 74HCxx vs 74LSxx

The red CPU sockets Sinclair used in QLs are really terrible. They will not reliably support any sort of daughter card at all. More than half of the problems with intyernal memories that used that socket were because of the socket. It would definitely be more reliable (and easier!) to put the CPU an...
by Dave
Tue Sep 03, 2019 9:37 pm
Forum: Hardware
Topic: Issue 8 discussions...
Replies: 127
Views: 14340

Re: Issue 8 discussions...

Sorry guys. I don't work in the summer. Nasta finished the design. I'll be back on it when it cools down.
by Dave
Fri Aug 02, 2019 10:39 pm
Forum: Hardware
Topic: Issue 8 discussions...
Replies: 127
Views: 14340

Re: Issue 8 discussions...

AKA fun times. :D

It’s a cycle you’ve followed for years. I follow a similar cycle.

I will be away for a whole year in 2021 o 2022. Just setting expectations.
by Dave
Thu Aug 01, 2019 7:37 pm
Forum: Hardware
Topic: Issue 8 discussions...
Replies: 127
Views: 14340

Re: Issue 8 discussions...

And summer arrived. Nasta always goes radio silent all summer, and I have summer stuff to do!

See you when the nights get shorter!
by Dave
Sun Jul 14, 2019 7:56 pm
Forum: Hardware
Topic: Issue 8 discussions...
Replies: 127
Views: 14340

Re: Issue 8 discussions...

Things are going slow right now.

I'm investigating a couple of low level decisions about the video system. I'm not really happy with any of the options that have been presented to me, or any I have devised myself. I'm still noodling it out.
by Dave
Thu Jul 04, 2019 6:02 pm
Forum: Software & Programming
Topic: Starting programming.....
Replies: 6
Views: 1056

Re: Starting programming.....

I always just used flat files or linked lists. It's not like a QL program usually has complex data requirements. I personally prefer flat files. They occupy more memory, but they are quicker to index and easier to save/load only the specific entries you want if each record set starts on a ^2 boundary.
by Dave
Wed Jul 03, 2019 9:14 pm
Forum: Prospective Members
Topic: Membership payed but nothing happened aftewards?
Replies: 2
Views: 1015

Re: Membership payed but nothing happened aftewards?

QUANTA is aaaalmost dormant nowadays.

They still release a regular magazine, but without an editor, that's a tough job.
by Dave
Wed Jul 03, 2019 6:08 pm
Forum: Software & Programming
Topic: Get info when QL is ready with screen redrawing?
Replies: 9
Views: 909

Re: Get info when QL is ready with screen redrawing?

It's also an option to turn the video display off while the screen is being redrawn, so the redraw happens during the dark spell, if that is the effect you're trying to achieve?