Search found 52 matches

by Thommy
Sun Jul 22, 2018 11:40 pm
Forum: Emulators
Topic: Clock Signal: back again for the Mac and UNIX-ishes
Replies: 14
Views: 3248

Re: Clock Signal: back again for the Mac and UNIX-ishes

Minor update; in full-screen mode it was previously possible to end up with a load of accumulated ugliness on the right-hand side of the display after loading. This is now fixed. The new release is where it always is.
by Thommy
Mon Jun 04, 2018 12:39 pm
Forum: Emulators
Topic: Clock Signal: back again for the Mac and UNIX-ishes
Replies: 14
Views: 3248

Re: Clock Signal: back again for the Mac and UNIX-ishes

That appears to be a 60Hz program? So it rolls a lot . Screenshot attached. I see this discussion of adapting it to 50Hz; I'm just squeezing this test into a quick ten minutes before work so don't immediately have time for poking around but will try to see whether any solutions are available there. ...
by Thommy
Sun Jun 03, 2018 2:37 pm
Forum: Emulators
Topic: Clock Signal: back again for the Mac and UNIX-ishes
Replies: 14
Views: 3248

Re: Clock Signal: back again for the Mac and UNIX-ishes

More fixes! Available now ! my .p validation was proven too strict by Humpty Dumpty, so has been relaxed; I've switched back to using one byte per pixel in the intermediate graphics buffer, at the cost of greater upload costs but so as to correct precision errors visible on some GPUs where the absol...
by Thommy
Wed May 16, 2018 3:59 am
Forum: Emulators
Topic: Clock Signal: back again for the Mac and UNIX-ishes
Replies: 14
Views: 3248

Re: Clock Signal: back again for the Mac and UNIX-ishes

Quick update to announce that the (hopefully) fixed version has now been released. So that's available for download here.
by Thommy
Wed May 02, 2018 4:26 pm
Forum: Emulators
Topic: Clock Signal: back again for the Mac and UNIX-ishes
Replies: 14
Views: 3248

Re: Clock Signal: back again for the Mac and UNIX-ishes

I think I'm fine on hsync, I just had the three-bit graphics-indexing line counter reset awry. I guess time will tell whether I'm actually fine and/or whether my line counter is still off. I have hsync as the forums suggest: on the ZX81 only, incrementing with the CPU clock, wrapping at 207, being r...
by Thommy
Wed May 02, 2018 3:59 am
Forum: Emulators
Topic: Clock Signal: back again for the Mac and UNIX-ishes
Replies: 14
Views: 3248

Re: Clock Signal: back again for the Mac and UNIX-ishes

Okay, so what I had implemented was the Martin Korth version of the world: exiting vsync resets the counter. I switched to resetting the counter on any port output that occurs while NMIs are disabled. That seems to fix my testing set, though I worry a little about comprehensiveness. So, from: Before...
by Thommy
Tue May 01, 2018 4:40 pm
Forum: Emulators
Topic: Clock Signal: back again for the Mac and UNIX-ishes
Replies: 14
Views: 3248

Re: Clock Signal: back again for the Mac and UNIX-ishes

It looks like something I'm doing in BiggOil upsets Clock Signal. Let me know if there's anything you would like from me if you choose to investigate. C I'll look into as soon as I get a chance; I'm fairly deep in Apple II emulation right now but I'm sure that'll all be tied up in the near future. ...
by Thommy
Tue Mar 20, 2018 3:45 pm
Forum: Emulators
Topic: ZEsarUX 6.1 BETA March 2018
Replies: 7
Views: 1882

Re: ZEsarUX 6.1 BETA March 2018

Raising the bar, as always! Very, very, very minor observation, prompting the post: the old sourceforge address is still in your signature. That's really my only relevant observation. Completely off-topic observation: your documentation of the Spectrum Next opcodes specifies mul as D*E -> DE (i.e. 8...
by Thommy
Thu Mar 08, 2018 4:25 pm
Forum: GAMES
Topic: Copyrights for New Generation Software games (e.g. 3D Monster Maze)
Replies: 5
Views: 1035

Re: Copyrights for New Generation Software games (e.g. 3D Monster Maze)

This might be the worst advice ever, but: you could always just publish it and see what happens. Almost eight years ago, we at the company I was then at released a ZX Spectrum emulator for the iPad. I sought out every freeware or free-for-distribution title that I could find. If you check WoS you'll...
by Thommy
Wed Mar 07, 2018 10:55 pm
Forum: Emulators
Topic: Clock Signal: back again for the Mac and UNIX-ishes
Replies: 14
Views: 3248

Re: Clock Signal: back again for the Mac and UNIX-ishes

Quick minor update: as I thought I would quickly be able to do, I've added ZON X support to the emulated ZX81. Binaries and source code available as usual . It should be cycle perfect, actually internally generating an audio wave at 1.625Mhz and then resampling it. So I'm optimistic of no aliasing o...