Search found 439 matches

by djnzx48
Thu Jun 20, 2019 8:18 am
Forum: ZXDB Discussion
Topic: New Database Model ZXDB
Replies: 170
Views: 13139

Re: New Database Model ZXDB

You mean scanning the bottom of every page with OCR to find out the page numbers? I suppose it might work in theory, but it could be kind of impractical. How would you distinguish them from any other number on the page? And a lot of the full-page advertisements don't have page numbers anyway. EDIT: ...
by djnzx48
Thu Jun 20, 2019 3:30 am
Forum: ZXDB Discussion
Topic: New Database Model ZXDB
Replies: 170
Views: 13139

Re: New Database Model ZXDB

Thanks for the great explanation @Einar Saukas When I go to our MicroMart Page (I didn't know that was included in ZXDB). https://spectrumcomputing.co.uk/index.php?cat=97&mag_id=280 I click on any PDF and it says Page not Found on archive.org. Is that something with the path? Every PDF link seems t...
by djnzx48
Thu Jun 20, 2019 3:00 am
Forum: ZXDB Discussion
Topic: New Database Model ZXDB
Replies: 170
Views: 13139

Re: New Database Model ZXDB

Not sure if this is a bug or not, but in the past I've noticed the magazine references often link to one past the intended page. For example, the Pssst link takes me to page 79 when the actual reference is on page 78. It seems like the page numbers in archive.org links start at zero, with no page n...
by djnzx48
Thu Jun 20, 2019 3:00 am
Forum: Games/Software
Topic: Wheelie graphical style...
Replies: 4
Views: 110

Re: Wheelie graphical style...

Also the Go-Go BunnyGun demo uses a similar technique, with the background pattern on alternate rows of the screen.
by djnzx48
Wed Jun 19, 2019 11:12 pm
Forum: Games/Software
Topic: Wheelie graphical style...
Replies: 4
Views: 110

Re: Wheelie graphical style...

You could probably alter the game to use more solid graphics, and change the code to run over every line on the screen. But it would likely run twice as slowly. For some reason they've put the scrolling code into contended memory, so the instruction combination used incurs up to 34 T-states of conte...
by djnzx48
Wed Jun 19, 2019 10:51 pm
Forum: Games/Software
Topic: Wheelie graphical style...
Replies: 4
Views: 110

Re: Wheelie graphical style...

It seems it was likely for performance reasons. The game uses RLD/RRD to scroll the screen, and the graphical style means that only every second row has to be scrolled.
by djnzx48
Wed Jun 19, 2019 5:27 am
Forum: ZXDB Discussion
Topic: New Database Model ZXDB
Replies: 170
Views: 13139

Re: New Database Model ZXDB

Not sure if this is a bug or not, but in the past I've noticed the magazine references often link to one past the intended page. For example, the Pssst link takes me to page 79 when the actual reference is on page 78. It seems like the page numbers in archive.org links start at zero, with no page nu...
by djnzx48
Wed Jun 19, 2019 5:18 am
Forum: Hardware
Topic: What 128k model to buy for homebrew development testing and homebrew gaming?
Replies: 21
Views: 458

Re: What 128k model to buy for homebrew development testing and homebrew gaming?

Is that the whole process you have to go through every time? Personally I don't use emulators to produce .tap files. It's too tedious and error-prone if you have to load in all the code blocks manually and save them out again each time you need to make a build. Much simpler is to create a small batc...
by djnzx48
Fri Jun 14, 2019 6:13 am
Forum: Games/Software
Topic: SC Friday Quiz: Baddies
Replies: 39
Views: 474

Re: SC Friday Quiz: Baddies

3. Impossible Mission
10. Commando
25. Dan Dare