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Search Again :: Adv Search 1000 results in 0.020s
<1…23242526272829…34>
  • Creating a Spectrum game that won't load...Dear All, I have recently been using my ZX Spectrum as a reference for the production of a new body of art work and something I keep coming back to …

    ... , then why not SAVE a screen instead of LOADing? The USR ... DE,768 ;length (6912 for screen)
    LD IX,15616 ;start ... (16384 for screen)

    LD HL,$0C98 ;timing
    EX ... />

    LD BC,$3B0E ;timing
    EX AF,AF'
    roko roko November 2009 Sinclair Miscellaneous
  • Project OTLA / k7zx (high speed loading)Hello, I am proud fan of zx spectrum (I do not have speccy, but clones (Didaktik Gama, Didaktik M)), I am using portable CD player to load games. Al…

    I haven't looked at the OTLA code, but I suspect it wouldn't run correctly from screen memory, since it's highly timing-critical and 16384-32767 is contended memory.
    gasman gasman November 2009 Sinclair Miscellaneous
  • many scr files to tap fileguys, I know that threads like this have existed in the past, but i'm gonna try to get a video onto speccy. The +3e to be exact. figured i'd use full…

    ... that. (It's all rather timing-critical and error checking was ... and outputting them to the screen or a 256-byte sound ... its just a matter of timing - onwards and upwards!
    nuggetreggae nuggetreggae December 2009 Development
  • ZX81 more powerful than the Speccy?I have been reading ?The ZX Spectrum Book 1982 - 199x? by Andrew Rollings (thanks again, Andrew - it?s a great read!). There are some comments in the…

    ... or something, to test the timing. It might not have been ... allowed to know how the screen was laid out in memory ...
    ewgf ewgf January 2010 Games
  • zx81 + commodore 1541 drive?[url]http://8bit.yarek.pl/interface/zx81.zx1541/index.html[/url] did anyone build it ?!?! just curious :)

    ... , using carefully-timed writes to screen memory to change the displayed ... ZX81's equivalent of multicolour hacks on the Speccy, or FLI ...
    gasman gasman January 2010 Hardware
  • zx81 + commodore 1541 drive?[url]http://8bit.yarek.pl/interface/zx81.zx1541/index.html[/url] did anyone build it ?!?! just curious :)

    ... , using carefully-timed writes to screen memory to change the displayed ... ZX81's equivalent of multicolour hacks on the Speccy, or FLI ...
    roko roko January 2010 Hardware
  • Game Boy Advance EmulationI've finally got myself a GBA flash cartridge and programmer. I've put ZXAdvance on it and I like the setup. Mildly disappointed that it doesn't ha…

    I played with the screen setup - I like how you ... /middle/bottom thirds of the screen separately. I think there's ... Buzzsaw+ using the Pentagon (uncontended) timing routines and the super-colour ...
    joefish joefish January 2010 Emulators
  • Can ULA kill other componentsIn my search for a problem I used a ULA6C001E-7 on a board that had a ULA6C00IE-6 chip. Q1) Should this have worked? Q2) After this experiment both …

    ... same problem. White border, Black screen with verticle thin whit stripes ... as there is a small timing difference between both ULA's ...
    roko roko January 2010 Hardware
  • ULA Plus and Interlace.May be a bit late to suggest this, but here goes. Did the original Speccy ULA actually output a proper PAL interlaced image, with timing pulses on a…

    ... proper PAL interlaced image, with timing pulses on alternate frames to ... to alter what's on screen and generate hi-res interlaced ... going to have an interlaced screen as it would induce fits ...
    csmith csmith January 2010 Hardware
  • Please test my Manic Miner remake!Thanks to everyone who downloaded my sneak preview of Manic Miner Turbo. Thanks especially to na_th_an who is the only person so far to give feedback…

    ... only need to redraw whole screen at level startup, there's ... are not ready to update screen, just play tune and update ... /> ; we are ready to update screen. clear the flag
    xor ... (attribptr), a

    IFDEF TIMING
    ld a, (bdr_colour)
    Paradigm Shifter Paradigm Shifter February 2010 Games
  • Sinclairean A3[B]Sinclairean[/B], a new ZX Spectrum emulator written in machine code for x86-compatible, OpenGL-capable computers. Features: [LIST] [*]Fast machin…

    ... QUOTE]- button for reset default screen size, after zooming or rotating ... br />
    [QUOTE]- some screen mode with aspect ratio closest ... to the original Spectrum screen..[/QUOTE]

    ... to follow the actual Speccy timing.

    [QUOTE]- ...
    Madonna Mk 2 Madonna Mk 2 February 2010 Emulators
  • UWOL, quest for money - The MojonTwins (ZX SPECTRUM 128k)Uwol didn?t have enough after earning about the 90% of all the income which resulted of selling retrovideogames in Spain and getting himself rich. No…

    ... situation fast (on every new screen) and avoid the shots somehow ... the wrapper, with game-specific hacks.
    Shiru Shiru March 2010 Games
  • Spectrum 2-3 times more powerfull than MSX?![url]http://www.youtube.com/watch?v=2-kI0urN9tI#t=8m18s[/url]

    ... outputs to VRAM while the screen is being shown (e. ... RetroTechie;429230]There are some timing requirements to observe when video ... emulators that don't emulate screen corruption, or in their ... complaints after release because the screen gets corrupted on many ...
    Metalbrain Metalbrain March 2010 Sinclair Miscellaneous
  • Spectrum 2-3 times more powerfull than MSX?![url]http://www.youtube.com/watch?v=2-kI0urN9tI#t=8m18s[/url]

    ... O ports. There are some timing requirements to observe when video ... PUSH to write to the screen, which is quicker even ... it does character-map the screen, and programmers can exploit that ... to speed up screen updates and provide an alternative ...
    joefish joefish March 2010 Sinclair Miscellaneous
  • Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …

    ... to see how the flick screen scrolling system works, that's ... in sprite test to make timing more exactly. but there is ...
    Fikee Fikee March 2010 Development
  • Networking using EAR and MICI know this is an old topic and was mentioned before in books or magazines, but I need some advice. I'm considering the possibility of creating a Bat…

    ... , it disables interrupts so the timing isn't disrupted. With something ... , then it can update the screen, read the keyboard, advance its ... have to take all its timing cues from the master Speccy ...
    joefish joefish March 2010 Sinclair Basic
  • Spectrum v Amstrad CPC rangeAmstrad seemed to be a rather late starter in the 8 bit micro computer race. I never really saw one outside a shop, only a few people at school had o…

    ... flickering 2- or even 3-screen-alternating interlaced stuff on real ... and FLI, I've coded timing-critical stuff in my demos ... shifting stuff around on the screen from the processor, I'd ...
    XTM of TMG XTM of TMG April 2010 Sinclair Miscellaneous
  • ZX Basic 1.2.5 - a BASIC CompilerWell, my old post about ZX BASIC seems to be gone (maybe this phorum purges old threads?), so I started a new one. After more than 6 month, I've fin…

    ... more. It's all about timing on the spectrum - get it ... to the top of the screen. It was doing it, then ...
    Gedlion Gedlion April 2010 Development
  • IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…

    ... the following, all speed fixed - timing fixed - interrupt fixed

    screen attributes, and changes loads of ...
    nuggetreggae nuggetreggae April 2010 Development
  • Flicker fixer for ZX 48KHas anyone the schematics for the flicker fixer: [URL]http://8bit.yarek.pl/computer/zx.48/[/URL] Micky

    ... in refresh cycle for stop screen raining. ULA15 in active state ... with fixed screen raining + always fast I/O operations(incompatible CPU timing)
    velesoft velesoft April 2010 Hardware
  • IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…

    ... the Wolfenstein (and other timing sensitive) parts (Pentagon Timing ofcourse), otherwise works ... on a machine with contended screen memory (it requires too much ...
    gasman gasman April 2010 Development
  • Dragon Slaying games.St Georges Day. Need to kill Dragons! Games ideas please? NB: Dragons are not our friends, so nothing involving co-operating with the beasts! T…

    ... the right one) and the timing with which you have to ... 't get past the final screen with Singe. :( I've completed ...
    ToxieDogg ToxieDogg April 2010 Games
  • FMV on +3eOK, so about 6 months ago i posted here that i got full motion video on +3e, with a bunch of scr files called passion. I added the glider rider music…

    ... starts on page 23, with screen 0 set in place. the ... load to page 29, with screen 1 set in place.

    As for timing, one 512 byte sector takes ...
    nuggetreggae nuggetreggae April 2010 Development
  • Making Horace play fair!Hi again Has anyone created a new or twiddled version of Hungry Horace that has a more fair screen 3 and 4? Or a version of the spiders where the f…

    ... being able to change the screen colours?[/QUOTE]

    yes ... different colour. I included some hacks to change flower and horace ...
    Arda Arda April 2010 Games
  • converting ZX128 software for SAM COUPESAM COUPE is computer compatible with ZX48 model. Use same ports, same keyboard with compatible membrane, 64kB adress space with possibility connect …

    ... position of CPU interrupt in screen area. Default value is 0 ... can flash (SAM use different timing). This can be eliminate via ... But more games use correct timing via interrupt 50Hz then games ... palette, set interrupt position on screen, can run 48kB SNApshots in ...
    velesoft velesoft May 2010 Games
  • DivIDEo - streaming video on the DivIDEThis has been a bit of a personal holy grail for years and years, so I'm very pleased to announce the release of DivIDEo, my streaming video system f…

    ... the quality of sound (perfect timing)[/QUOTE]

    I *think ... contention is when writing to screen memory, and there's not ...
    gasman gasman May 2010 Announcements
  • BUZZSAW+ Demo No. 3Right, another demo of BUZZSAW+. [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_3.tap"]Joefish_Buzzsaw_Demo_3.tap[/URL] The default con…

    ... on each line of the screen, with data taken from a ... to monitor and debug the timing of everything by making it ...
    joefish joefish June 2010 Development
  • Why only 2 colors ?Maybe this question dont go on this part of the forum, but dont know what other part to ask. Why the Spectrum only can show 2 colors at time in the …

    ... /> The Spectrum only had one screen mode. 256x192 pixels, each of ... .

    But with careful timing and programming on all these ... more colours to appear on screen. This technique was rarely used ... which could do the precise timing for you.

    ...
    joefish joefish June 2010 Sinclair Basic
  • Gummy Bears iso3d adventureHi! While checking out some of the Russian and other foreign TRDOS games I came across a rather nifty looking isometric 3d adventure "Gummy Bears"..…

    ... the bottom of the screen; most of the hacks have it at ... the top). There are other hacks which don't feature Dizzy ...
    Alarm Alarm June 2010 Games
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