-
be happy 2006small gift from Triumph games lab [url="http://scenergy.natm.ru/files/behappy2006.zip"]http://scenergy.natm.ru/files/behappy2006.zip[/url]
... Dunny wrote:
Yes, the Snow would become a blizzard on ... repaired model).
The "snow" is tremendous. The top third ... the screen contains all the snow (fairly intense), while parts ... Spectrum had a HW scroll register.
The first ... -
The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…
... /> Basically you're using the "snow" effect, knowing how it works ... expect, anyhoo. Not exactly "hardware scrolling", but more "image displacement"? -
The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…
Using the snow effect, yes. But ... displacements gives a nice scrolling effect though, and it ... done in software. So hardware scrolling sounds much better :)
... being specified in RS' snow effect doc, so this ... rock steady display in "snow" mode. From there you ... -
RealXThis may be a dumb question but will RealX ever get released?
... of the I register and the R Register, combined to form ... applied during this period is "snow contention".
... do with clarification - as snow contention is not applied until ... cases.
Your Snow documentation also states incorrectly that ... -
RealXThis may be a dumb question but will RealX ever get released?
[quote=Luca]Then it isn't clear to me what do you mean by "snow contention".[/quote]
Dunny likes to call contention based on the IR register pair outside of M1 cycles as snow contention. But only when it causes the snow. -
RealXThis may be a dumb question but will RealX ever get released?
... the IR register pair outside of M1 cycles as snow contention. But ... only when it causes the snow.[/QUOTE]
In RS source ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
[QUOTE=Alcoholics Anonymous]Hardware scrolling I may have added as ... what you mean by hardware scrolling but a blitter can also ... in just by changing a register. It makes horizontal scollers a ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... what you mean by hardware scrolling but a blitter can also ... for vertical scroll, with a register indicating pixel row to start ... of bytes in an internal register that stored the last pair ... amount 0-7 indicated by register. This could be done without ... -
tips on optimizing assemblyI wrote a small routine to rotate right a whole screen character line complete with attributes. This is my third ever assembly routine, so I guess i…
... shuffling things into the A register quite a lot... it would ... the LDIR instruction - character-based scrolling is just copying blocks of ... to copy... if you were scrolling to the right, you'd ... -
Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …
... is passed in the HL register.
This just concerns ... does the screen grabbing / putting / scrolling. These will have to be ... deal of speed.
Scrolling is particularly scary, even for ... -
Help make Retro Gamer greatI'm more than happy with the articles that are now appearing in Retro Gamer, but I want it to become far more of a hub for the retro community than i…
... confirmed how the spectrum ULA snow effect work - lots of people ... back to the ULA as snow. This can have all sorts ... see is when the IR register pair is cycled through to ... to appear, through which the snow falls and causes the ULA ... -
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... the "Snow Effect" with particular values of the I register.[/QUOTE]
In fact, I thought the snow effect ... />
I wonder if the snow effect might be another clue ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
For anyone interested in implementing the snow effect, this 48K machine here uses ULA address for A15-A7, and R register for A6-A0. That slightly contradicts the Ramsoft docs (R for A7-A0 stated there), but there you go...Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... library that allows us to register functions to run during ... () is where the actual scrolling occurs; it is meant to ... d_ScrollStart() is called to start scrolling the message and d_ScrollStop() is ... called to stop scrolling. The message to be ...ULA RAS, CAS cycles, refresh and "snow effect"Hello everyone. I have a question, does anyone observed timings of RAS and CAS generated from ULA? I think there may be answer to where the "snow ef…
... will show you how the snow effect works.
Basically ... refresh cycle when the I register is at that magic range ... lower 16K and hence the snow.
Summay: ULA generates ...ULA RAS, CAS cycles, refresh and "snow effect"Hello everyone. I have a question, does anyone observed timings of RAS and CAS generated from ULA? I think there may be answer to where the "snow ef…
... read access, one bug -> snow effect)[/QUOTE]
If ... following as proof that the snow effect has nothing to do ... only occurs when the I register is set to a particular ...help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…
... the more limited challenge of scrolling the middle 28 bytes of ... that's what the bc register holds? The snapshot is here ...MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…
... RESIDOS:
ULA snow effect (screen raining) is active ... /128/+2(grey) if register I is set to same ... clones don't snow, and more russian games use register I set ... RESIDOS you can detect if register I is set to ... on +2A/+3. If register I is set to range ...MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…
... in RESIDOS:
ULA snow effect (screen raining) is active ... /48/128/+2(grey) if register I is set to same ... crash on +2A/+3. If register I is set to range ...list of ZX games with raining effect(ula snow)If you know any ZX games with raining effect in screen, then add game name to list. I know about this games only: (tested on real ZX128+2 - grey) 4x…
... and register I is set to fast memory = no snow. (ZX48 ula snow ... only if register I is set ...list of ZX games with raining effect(ula snow)If you know any ZX games with raining effect in screen, then add game name to list. I know about this games only: (tested on real ZX128+2 - grey) 4x…
... and register I is set to fast memory = no snow. (ZX48 ula snow ... only if register I is set ...list of ZX games with raining effect(ula snow)If you know any ZX games with raining effect in screen, then add game name to list. I know about this games only: (tested on real ZX128+2 - grey) 4x…
... paging. If 48k game set register I to value #BF-#FF ... (set in OPTIONS menu "ula snow effect")
VELESOFTBlizzard's Rift in Spinanyone else having trouble playing blizzard's rift in spin, the game loads ok, you can select controls, select a system to visit but when you select …
... the I register in such a manner that would cause snow on ...48K games that don't work on a +2Not sure if there is already a thread about this but recently I've noticed some old 48K games will not run on my +2 - even in 48K mode. Examples are…
... game, but the 'snow' effect (setting I register between $40 and $7F ...48K games that don't work on a +2Not sure if there is already a thread about this but recently I've noticed some old 48K games will not run on my +2 - even in 48K mode. Examples are…
... game, but the 'snow' effect (setting I register between $40 and $7F ... I have never seen the snow effect occur ever. (I have ...A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
... , here is a 4-way scrolling version of the program.
register pair, it wasn't much ...4116 DRAM for 48KSomeone told me I got faulty RAM in my broken 48K. They should be 150ns, right? What would be a good place to buy them from?
... I connected an 8-bit register (74HCT574 or similar) to 'capture ... perfectly stable, but showed some 'snow' on screen. Somehow the Z80 ... of clocking the 8-bit register directly with a DRAM control ... / writes to the lower RAM. Snow gone, normal operation 100% stable ...Hidden Features In GamesI'm sure there was a thread like this somewhere - sorry, but I can't find it. Hidden stuff in games. In "Mikie" there is a hidden bonus in each of …
... />
Well, Hypersports used 'Push' scrolling and 'Push' sprites (and used ... emulator testing with the "R" register usage - if your emulator gets ...Hidden Features In GamesI'm sure there was a thread like this somewhere - sorry, but I can't find it. Hidden stuff in games. In "Mikie" there is a hidden bonus in each of …
... ;343441]Well, Hypersports used 'Push' scrolling and 'Push' sprites (and used ... emulator testing with the "R" register usage - if your emulator gets ...
