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Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... tape and I found some ULA snow in the options menu screen ... in slow ram = ulo show snow/raining effect. -
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... you? Because I found some ULA snow effect during the game. If ... -
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... you? Because I found some ULA snow effect during the game. If ... -
Mr Heli - my new mod (w.i.p.)I really liked modding Spectrum games and would like to share my new project with you :) I took arcade port Mr Heli. It is actually a good game with…
... and hadn't noticed of ULA snow effect during the game? I ... -
128K Spectrum - can't figure out what's wrongLong time no post :) So I have this 128K Spectrum (+2 ROMs) that I cannot for the life of me figure out where the problem lies. Let's take a look a…
... almost like a variant of ULA snow, so I wonder are the ... of the pins in the ULA socket are making poor contact ... -
ULA snow effectIt's wintertime, you know. [quote="http://ramsoft.bbk.org.omegahg.com/floatingbus.html"]when the I register falls in the range 0x40-0x7F then the UL…
I have impemented the "ULA snow effect" in my emulator and ... -
The Infeasible GameMy new game will be available early next year. One or two little bits to sort and then I need to play test all the levels. For now, here is a short v…
Looks good, just a shame I can't play it on my real Speccy for more than 10 minutes without getting a horrific migraine ;)
For an accurate image of what we're seeing - turn on Hardware --> Emulation --> ULA snow effect -
The Infeasible GameMy new game will be available early next year. One or two little bits to sort and then I need to play test all the levels. For now, here is a short v…
... on Hardware --> Emulation --> ULA snow effect[/quote]
I ... -
Composite picture qualityI have read many many discussions here about the composite video modification of the Spectrum 16/48K models. I have choosen one of the simplest comp…
That's a fix for the ULA snow effect when the Z80's I register is set to point at contended memory. Won't do anything for the picture quality.
B -
LED STORM - problem with infy energy poke (128k version)Hi guys, I'm having a little trouble with this infinite energy multiface poke found on Tipshop (POKE 37422,182) for the 128k version of Led Storm, it…
... with an emulator that supports ULA snow you can see visible glitches ... -
LED STORM - problem with infy energy poke (128k version)Hi guys, I'm having a little trouble with this infinite energy multiface poke found on Tipshop (POKE 37422,182) for the 128k version of Led Storm, it…
... with an emulator that supports ULA snow you can see visible glitches ... -
Skate Crazy on grey +2I've downloaded "Skate Crazy" from WoS, recorded it on a real tape and tried to load to my grey Spectrum+2. Game (both parts) works only in 48k mode.…
Double Buffering Artefacts on Real HardwareI have a project that I've played around with for a while and always tested using emulators, either ZX Spin or Spectaculator. It is a 128k game th…
... and tick the box for ULA snow effect. It's more accurate ... accuracy in the z80 core/ULA, but it will be very ...Double Buffering Artefacts on Real HardwareI have a project that I've played around with for a while and always tested using emulators, either ZX Spin or Spectaculator. It is a 128k game th…
... (presumably) expected in Spectaculator, exhibits ULA snow in but draws a different ... does the wrong screen without snow in the other two.
MAME in spectrum emulationHey to all Does anyone use MAME as a emulator port for any Speccy HW? I was so far away from MAME developments I forgot they merged with MESS whic…
... [/i] be a priority? The ULA snow effect? The floating bus? Accurate ...MAME in spectrum emulationHey to all Does anyone use MAME as a emulator port for any Speccy HW? I was so far away from MAME developments I forgot they merged with MESS whic…
... [/i] be a priority? The ULA snow effect? The floating bus? Accurate ...The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... referring to the actual ULA [i]snow[/i] effect, ... on these machines, the ULA snow effect works a little different ... contended bank, then the snow effect will appear [ ... post will cause the snow effect, even though ... all know as the ULA snow effect, not an actual ...The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... a Toast Rack produced the snow effect [i]while loading[/i ... they both (try to) emulate ULA snow.
Anyway, thought it ... .mp4"][b][u]Video of ULA Snow During the Loading of [i ...The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... pointing to $40–$7f causes ULA snow and a crash. Or does ... />
Primary the snow is caused because the ULA's memory contention ... ). The part of the ULA that generates the control signal ... correct data... so shows as "snow" (corrupt or incorrect picture ...The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... /> 2. Odd banks produce the ULA snow effect; even banks don’t ... . No crash
2. No ULA snow
Additional tests:
snow-effect pattern changed in Test ... play here.
2. The snow effect is triggered not just ...I introduce myself and my emulator.Hi! My name is Marta, and I've been a Speccy user for 30+ years now. During the past year I decided to write my own emulator, just to see if I cou…
... ’re game, that is)—the ULA snow effect. Not essential, for the ...Limitations of emulationsYears ago at a trade fair, I got chatting to the guys who programmed [i]Gyron[/i]. They were demonstrating it and showed me an undocumented feature: …
... . The only exception being the ULA snow effect, but I know of ... , memory fading and the subtle ULA behavior change as it warms ...Limitations of emulationsYears ago at a trade fair, I got chatting to the guys who programmed [i]Gyron[/i]. They were demonstrating it and showed me an undocumented feature: …
... . The only exception being the ULA snow effect, but I know of ... , memory fading and the subtle ULA behavior change as it warms ...Grey +2 with lines on some games on RGB connectionHi Everyone, Is it OK if I ask a question? I dug my +2 out of the loft after far too many years about a month ago, and I have finally got it ba…
More info on the ULA rain/snow effect: https://www.worldofspectrum.org/forums/discussion/55839/the-i-register-pointing-to-40-7f-causes-ula-snow-and-a-crash-or-does-it/p1Grey +2 with lines on some games on RGB connectionHi Everyone, Is it OK if I ask a question? I dug my +2 out of the loft after far too many years about a month ago, and I have finally got it ba…
... ;952854"]More info on the ULA rain/snow effect: https://www.worldofspectrum ... -pointing-to-40-7f-causes-ula-snow-and-a-crash-or-does ...
