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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–…
... machines crash if the I register points to a range of ... avail. I get the ULA snow, sure thing, but that’s ... -
Snow on screen of 48K Speccyok you wizards I fixed up my 4116 ram issue as Winston and McLeod advised me before by replacing with 4164's.... all I could find here in Singapore (…
... since I got it working. Snow on the screen. Particularly on ... . it's not the I register or the tuning - as it ... .no-ip.com/speccy-pics/snow.jpg[/url]
[url ... -
ULA bug and snowI am tryng to improve the snow emulation in FBZX wii but I do not have a real spectrum to test the results. I used the information taken from Harele…
... am tryng to improve the snow emulation in FBZX wii but ... writing in the ULA video register the second screen byte it ... cycle and if the I register is between 0x40 and x7F ... byte the value of R register.
This emualtes the ... -
Interrupts, 16k Spectrums and snowI'm writing something for the 16k Spectrum and I want to use interrupts. The avilable documentation doesn't seem clear enough for me to figure out ho…
... problem is ULA snow. Snow appears if the I register points to somewhere ... I can use. But does snow happen on a 16k Speccy ... 48k machine.
If snow _is_ a problem on 16k ... -
Exact emulation of the Snow effectAs the original post on another forum is outdated, and for those who don't know about that forum, I duplicate this info here: At the beginning of …
... /48/128/+2 machines snow appears if register I contains a value ... a question of register R's participation in the snow effect.
snow effect you need to make sure that the register I ... … $BFFF (register I within $80… $BF) — on machines with snow it's ... -
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 ... the Spectrum had a HW scroll register.
The first ... -
Horizontal scrollDoes anyone know how to do a 2 or 4 pixel left or right horizontal scroll of the spectrum screen. I can make a 1 one pixel scroll with: ... rl (hl…
... pixel left or right horizontal scroll of the spectrum screen.
scroll with:
... rl (hl)/dec ... -
[NEW]: Spectaculator 6.0Spectaculator is a Sinclair ZX Spectrum emulator for PCs running Windows 95, 98, ME, NT 4, 2000 and XP. Spectaculator emulates the 16K/48K/128K/+2/+…
... hex and decimal.
- Register values can be changed using ... to the APPS key, the Scroll Lock key is now also ... -
scroll?Hey guys! Great website! Is there anyway I can make my 128 not say "scroll?" and just make it scroll automatically?
Hey guys! Great website!
Is there anyway I can make my 128 not say "scroll?" and just make it scroll automatically? -
How can I scroll a line of text and wrap perfectlyI know this is easy for most of you but for some reason I am messing it up. In Assembly Language I want to do the following: I have 1 line of text …
... Pixel Rows). I want to scroll the whole line left one ... -
Is the IY register used by the spectrum rom?Hi I've been writing a sprite routine and have noticed that the sprite data gets corrupted at some points. I have no idea why and can only guess tha…
... the problem. Does the IY register need to hold a certain ... -
R Register, Contended RAM and ClonesHi. I've had a quick look at the CSS FAQ but didn't spot quite what I'm looking for (also the CSS FAQ doesn't have much detail of the clones - there …
... the progress of the R register. At one point I reset ... contended RAM on the R-register? I do not run any ... no effect as the R-register is internal to the Z80 ... (Pentagon, Scorpion, ...) affect the R-register differently? Again I would guess ... -
which domain to register?I'm about to register a domain under my country's top domain. almost all of the keywords are available to buy and I'm a bit indecisive person. which…
I'm about to register a domain under my country' ... -
Reliable snow reports?Just booked a skiing holiday - anyone know of a *reliable* website that carries snow reports and details of piste conditions? Just did a load of web …
Just booked a skiing holiday - anyone know of a *reliable* website that carries snow reports and details of piste conditions? Just did a load of web searching and got so many varying answers that made any info worthless. -
IY RegisterIve got a really bizarre bug, and I have only just started using the IY register. I seem to remember reading somewhere in a programming book, to neve…
... just started using the IY register. I seem to remember reading ... , to never use the IY register. Am I dreaming this?
register (HL, DE, BC) for zero ... -
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…
Snow in YanksvilleOK it snowed here in Indiana last night, I say this for my neck of the woods though I have no idea if the entire state got snow. Anyway I have 2 nig…
... if the entire state got snow.
Anyway I have ... else in the states get snow?
Beanz, USSpeccyfan, Klepto ... in Canada and you get snow all year round every day ...Snow Joke z80 doesn't work?The z80 file for Snow Joke keeps giving an error message when you try to take the first object in the game: [url]http://www.worldofspectrum.org/info…
The z80 file for Snow Joke keeps giving an error message when you try to take the first object in the game:
[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0006990[/url]
The tzx file works fine though.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…
How to avoid paging (scroll message)After 22 lines, the Spec asks if you want to scroll or break. I want to avoid that message and what the program to go on and produces lines on the sc…
After 22 lines, the Spec asks if you want to scroll or break. I want to avoid that message and what the program to go on and produces lines on the screen without stopping for this message. Is there a trick?The R RegisterI've found some documentation regarding the R register (in that it is updated every M cycle except for a certain number of opcodes in which it is upd…
... some documentation regarding the R register (in that it is updated ... maximum value of the R register is +127? If so, do ...ZX-style gameLooking at the new Spectrum games, like Vera, I surprised. Two pages of discussion in your forum and twelve in Russian one ! Other new games has the…
... it works too slow, the scroll is not soft and so ... use particle systems for explosions, snow or rain effects and so ...The F register unused bitsI'm doing some reading and trying to organize my Spectrum ML apprenticeship and while looking in greater detail at the flag register one question pop…
... greater detail at the flag register one question popped.
Can I manipulate this register directly or make use of ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... GAMEOVER.
;print car
;scroll road
;random road left ... load a value into a register or register pair.
The instruction ... out!
CHAPTER 4 - scroll and move the road, keep ... , adjust speed.
To scroll the road down the screen ...snow patrolJust been for a day out in Buxton and there was light dusting of snow on the hills on the way there. First snow ive seen this winter anyone else got …
Just been for a day out in Buxton and there was light dusting of snow on the hills on the way there. First snow ive seen this winter anyone else got any snow.Star Wars scroll/crawl/title effectI may have seen this type of scroll on a Speccy game before, but I've never seen it as a type-in or part of a cover tape. Does anyone know how to do …
... have seen this type of scroll on a Speccy game before ...Rotating Register PairsWhat's the best way to rotate left (or right) a register pair, so that (eg.) FE76 becomes E76F (or 6FE7)? I presume that passing the intermediate bit…
... rotate left (or right) a register pair, so that (eg.) FE76 ...Games filled with snow....I've just been playing Colin Mcrae Rally 2005 on the Xbox, and was driving the Swedish Rally, which is all very snowy and similar to the roads outsid…
... , I thought that as the snow is here and looks likely ... with that are filled with snow!?
It might put ... mood even if all the snow does disappear, so post Christmas ... a couple of more obvious snow-filled titles.....
Games filled with snow....(not Speccy)....I started a thread in Games after embracing the fact that we're all stuck with snow and deciding to celebrate it by playing games filled with it...(s…
... we're all stuck with snow and deciding to celebrate it ...
