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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…
... />
The problem is ULA snow. Snow appears if the I register ... I can use. But does snow happen on a 16k Speccy ... 48k machine.
If snow _is_ a problem on 16k ... -
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–…
... avail. I get the ULA snow, sure thing, but that’s ... -
Work out screen address from attribute cellAttribute cell 22529 is equivalent to PRINT 0,1 position value. Is it possible to obtain these two values from the number 22529 in a simple MC rou…
Attribute cell 22529 is equivalent to PRINT 0,1 position value.
Is it possible to obtain these two values from the number 22529 in a simple MC routine? -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... space on the screen, a "scroll?" message appears that not only ... -
ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…
... colour you'll need to scroll the attribute map - it's much ... 'll do a scroll up and left for the attribute map
scroll the attribute map is trickier when dealing ...
; fantastically easy as the attribute map is organised as you ... -
Opinions about Lemmings on speccyHi, whats your opinion about Lemmings on speccy??
... so?? attribute clash would not be major importance and scroll is from ... -
Tales of hate and despair in 8-bitsThis topic seeks to shed some light on one of the most obscure questions a spectrum user can ask. Why do we hate Commodore?
... black casing and the natty attribute clash, and the high resolution ... /> PS: before some of u snow me under calling me irrational ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... , or 3colours and one obligating attribute for transparency. i also think ... number -65536
4) scroll error in Keyboard input routine ... -
EmuZWin supports 256 color gamesI am sorry starting new topic, but you see this info is important a bit: new version 2.4 of the EmuZWin is available to download, and it supports 25…
... did you enable for the attribute mix ?
By the ... wrong bytes.However when you scroll the screen left and ... grid, shouldn't it scroll along with the sprites to ... what if the grid would scroll with the rest of ... down a shift key, and scroll only the grid, once ... -
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
This is what I've compiled so far:
[quote]Resources
=========
* Make all caps
---------------
You can turn CAPS LOCK on or off using a simple poke to 23658:
POKE 23658,8: REM CAPS ON
... -
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 ... -
Screen effects in MCAs I see there is still interest for MC programming on Speccy. So, I made little presentation of screen or slideshow effects with source files, demon…
... area is used, then no attribute problems, and speed is also ... 3.5 - there is pixelwise scroll, but only for pixels, not ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... z80, you might want to scroll down to the "The IM2 ...
; d4ff - d4ff SP1.LIB attribute buffer
; d4f7 - d4fe SP1 ... -
Games club WC 30/09/06Games for WC 30th Sept
... game without any clash and scroll a complex full colour background ... and everything moves in exact attribute squares (Light Force, R-Type ... -
Font centering problemA while back today, I started coding a simple Othello/Reversi game in BASIC, with the precious aid of BASin (great tool, hope it eventually becomes b…
... have your UDGs available. Just scroll the numbers up across two ... your game pieces - the resulting attribute clash will make your grid ... -
PSPSIM - SamCoupe Emulator for the PSPI have just been playing around with PSPSIM and just wanted to know what Sam Coupe users thought were the best games/apps for the Coupe? Cheers,
... can work with in the attribute limitations. The delays in mode ... alas the Put, Roll, and Scroll commands are disabled in 1 ... -
Fixing Attribute Clash via emulationI'm sorry if this has been posted already, but is there a possibility to fix attribute clash via emulation? I'm not talking about RealSpec or any of …
Yep. Attribute clash isn't a purely ... , say, dot crawl or ULA snow, so to remove it entirely ... character square since the previous attribute was written to it.
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... system variable to stop the scroll? message coming up.
attribute contains a rock or not ...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…
... ]d_PrintDoubleW()[/b]. The pixel scroll routine requirement has changed (the ... double width characters for the scroll. So a little later ... uchar colour; // +1 background tile attribute
uint tile; // +2 ...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…
... one character up. The scroll will work properly it ... /> Or you could vertically scroll only 28 characters of the ... first byte of the attribute file. Why not $ ... this is once your scroll routine takes less than ... able to set the vertical scroll speed.
...New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... =0017759[/URL] ), it's a scroll game implemented 100% in BASIC ... whole lines with the same attribute for the background, and c ...Games with Parallax ScrollingI loved that effect. It gave a false depth to the game.. To me a game with parallax scrolling was a better game. How wrong I was.. anyway, a list of…
... then have vertical or horizontal attribute stripes which span the ... - depending on general the scroll direction but it could be ... , these attributes "naturally" would scroll at 8 pixels each frame ... at 8 pixels matching the attribute scroller position to help ...Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... ? I need a fast window scroll routine in four ways, window ... and, if the latter, is attribute scrolling required too?
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... and, if the latter, is attribute scrolling required too?
scroll, without attributes. And dont tell ... this is impossible, i can scroll myself all the screen in ...Why were most spectrum games on Monochrome?OK, I know about the whole "Attribute clash" that you get on the spectrum. And I've spoken to someone who claims to have been an Ocean programmer, wh…
... examples of color games with scroll, but have 8x8 pixels movement ... the best examples of intelligent attribute mapping, with black separators between ...Skooldaze TooDear WoSsers, Thanks to Skoolkid's disassembly I'm attempting to write a new "improved" version called [B]Skooldaze Too[/B]. As part of the improvem…
... move around, keep going to scroll the map. Press EXT mode ... initialAS table!)
A = modify ATTRibute of UDG
In ...Skooldaze TooDear WoSsers, Thanks to Skoolkid's disassembly I'm attempting to write a new "improved" version called [B]Skooldaze Too[/B]. As part of the improvem…
... move around, keep going to scroll the map. Press EXT mode ... initialAS table!)
A = modify ATTRibute of UDG
In ...Well, it's just sat on my hd doing nothing otherwise..Here's a platform game I was working on late last year. I spent something like two months of not very plentiful spare time on it. So I worked during …
... movement and graphics, falling pixels (snow?) also add some atmosphere.
attribute after him so falling snow becomes cyan in ...Well, it's just sat on my hd doing nothing otherwise..Here's a platform game I was working on late last year. I spent something like two months of not very plentiful spare time on it. So I worked during …
... go about doing the nice attribute-sized sprite masking that DD2 ... his cyan ink attribute after him so falling snow becomes cyan in ... 's intentional. The enemies leave attribute trails too. It's a ...Did the average Spectrum programmer really even try?I've been thinking about this recently, I'm always hearing Amstrad, and MSX users moaning about how unfair it was that they got "lazy Spectrum ports"…
... , surely squared off edges, attribute-sized platforms and borders, and ... game doesn't need to scroll or anything :???:
... I recall, two colours per attribute box, bright with bright ... a few Codemasters releases the attribute moving method is pretty ...
