Search found 134 matches

by olofsen
Sat Apr 28, 2018 10:55 am
Forum: Hardware
Topic: ZXPAND and Lambda 8300?
Replies: 28
Views: 2931

Re: ZXPAND and Lambda 8300?

Perhaps it is the INT routine? The routine in the ZX81 compatible Lambda ROM is I think slightly different from the normal ZX81 INT routine which the ZXpand is using?
by olofsen
Wed Mar 14, 2018 5:23 pm
Forum: ZX Spectrum Lounge
Topic: Sinclair Zx Spectrum: absolutely better ...
Replies: 3
Views: 313

Re: Sinclair Zx Spectrum: absolutely better ...

Hi, thank you for this great reading! But, perhaps the Science of Cambridge is best - it is the fastest with lots of RAM, has the best BASIC, and the best colour graphics :)
by olofsen
Tue Jan 02, 2018 9:32 pm
Forum: Development
Topic: ZXMore development thread
Replies: 7
Views: 465

Re: ZXMore development thread

Sure!
by olofsen
Sun Dec 24, 2017 7:27 pm
Forum: Sinclair Misc
Topic: Happy Christmas
Replies: 10
Views: 765

Re: Happy Christmas

Merry Christmas everyone!
by olofsen
Wed Dec 20, 2017 8:52 pm
Forum: Development
Topic: Metropolis, a proper ZX80/81 demo
Replies: 21
Views: 1301

Re: Metropolis, a proper ZX80/81 demo

Thank you for the newer versions, these work on sz81 as well! However, the version that works well on the real thing but not on an emulator also helps in understanding how things really work. It would be even more interesting if that one works on one ZX81 but not on another... ;)
by olofsen
Wed Dec 20, 2017 8:18 am
Forum: Development
Topic: Metropolis, a proper ZX80/81 demo
Replies: 21
Views: 1301

Re: Metropolis, a proper ZX80/81 demo

It really is a proper demo, because it doesn't work properly on the latest sz81 emulator either (in zx81 mode, it does in zx80 mode)...! As far as I understand it, the in/out combination, which is normally used to produce Vsyncs, is used here to produce Hsyncs. A Vsync resets the "rowcounter", which...
by olofsen
Thu Dec 07, 2017 2:25 am
Forum: Emulators
Topic: ZX80 Program Listing to text file
Replies: 14
Views: 1193

Re: ZX80 Program Listing to text file

The "ZX80LP" button at http://rullf2.xs4all.nl/jszeddy/jszeddy.html prints every printed character to the printer area - so that would need a bit of formatting after a number of LIST commands, but perhaps it's something ;)
by olofsen
Mon Nov 27, 2017 7:40 am
Forum: Emulators
Topic: Ram at 8K with NO$ZX81?
Replies: 4
Views: 474

Re: Ram at 8K with NO$ZX81?

Just press F9 :)
by olofsen
Sun Nov 26, 2017 5:40 pm
Forum: Emulators
Topic: Ram at 8K with NO$ZX81?
Replies: 4
Views: 474

Re: Ram at 8K with NO$ZX81?

Version 2.0 seems to be here: http://problemkaputt.de/zx.htm