Search found 167 matches

by olofsen
Sun Sep 08, 2019 12:23 pm
Forum: Hardware
Topic: 32 kb ROM patch.
Replies: 9
Views: 256

Re: 32 kb ROM patch.

Does setting RAMTOP to $0000 work as well on a real ZX81?
by olofsen
Thu Sep 05, 2019 8:44 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 23
Views: 1599

Re: sz81 emulator

The 2.3.10 source and Windows binaries have been updated with a minor change for UDG. Without this change, the first "BBB" video worked, but hopefully now also the new example videos. A difference is that switching off WRX doesn't seem to be necessary. Hopefully the minor change does not give issues...
by olofsen
Wed Sep 04, 2019 11:23 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 23
Views: 1599

Re: sz81 emulator

djp wrote:
Wed Sep 04, 2019 10:19 pm
I'm running version 2.3.10, albeit under GNU/Linux but it doesn't appear that the ZXpand support with the UDG setting is working with the video player. :(
Does it work with the latest source (the Windows versions would then also need another update)?
by olofsen
Wed Sep 04, 2019 5:52 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 23
Views: 1599

Re: sz81 emulator

Moggy wrote:
Tue Sep 03, 2019 10:38 pm
SZ81 for windows also has Zxpand support but unfortunately the UDG setting doesn't seem to want to work with the video player.
The Windows versions (available at the link in the first post) have been updated to version 2.3.10 :)
by olofsen
Sat Aug 24, 2019 4:14 pm
Forum: Development
Topic: Advances in retro video compression
Replies: 9
Views: 505

Re: Advances in retro video compression

The movie looks amazing! :) The slowdown in EightyOne may be caused by emulated delays in the ZXpand code. FileRead sets a delay via COMFUNC(FileRead,100) of 100 units. Roughly every 1 ms the zx81 code decreases this delay with 10 units. The resulting delay of about 10 ms for every 256 bytes may be ...
by olofsen
Wed Jul 17, 2019 8:02 am
Forum: Software
Topic: Happy pi day - March 14th
Replies: 4
Views: 1183

Re: Happy pi day - March 14th

Changing line 220 in pi2.p to the one in pi.p seems to help - so

Code: Select all

220 LET S=-1
by olofsen
Sat Jun 22, 2019 3:44 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 23
Views: 1599

Re: sz81 emulator

GCHarder wrote:
Wed Jun 12, 2019 10:09 pm
Is there a manual somewhere for ZX81NU?
I'm not sure if there is a manual; the project is described here:
http://forum.tlienhard.com/phpBB3/viewt ... f=2&t=1029
by olofsen
Sat Jun 22, 2019 3:40 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 23
Views: 1599

Re: sz81 emulator

It seems the macOS download only includes the standard version. Could you kindly include the ZXpand and ZXmore version with the macOS package as well? Unfortunately I'm not familiar with macOS Apps and Frameworks, but the following steps might help to create an executable that may be started from a...
by olofsen
Thu Jun 13, 2019 11:16 pm
Forum: Emulators
Topic: sz81 emulator
Replies: 23
Views: 1599

Re: sz81 emulator

by olofsen
Sat Apr 27, 2019 4:57 pm
Forum: Emulators
Topic: bugs found on eo
Replies: 14
Views: 3041

Re: bugs found on eo

Per design, the Z condition bit is not affected by ADD HL,BC...