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<1…14151617181920…34>
  • Weird 1982 Copyright message after cap change.Hello All, As mentioned before I had a busted Issue 6 48K Spectrum+, one of the capacitors had leaked, and trashed the keyboard membrane ribbon. Us…

    ... screen with the thin red vertical bars take the same amount ... boot identically, neither have red lines on the black screen... the ...
    Korinel Korinel October 2014 Hardware
  • clear a windowed area of the screenHi everyone! Ain't been on here for donkeys, but have recently started messing around with a little game. I'm looking for ideas/opinions on the bes…

    ... /> To clear just the 192 lines of the window in the ... file, the PUSH method is 39 bytes and takes 170T for ...
    Battle Bunny Battle Bunny October 2014 Development
  • Retro GamerDoes anybody know when the next issue of Retro Gamer will be out? They told me to include an article about the Spectrum30 show in the News section an…

    ... it's more along the lines of "mass-market video game ...
    P34 ADSPACE
    P35-39 CONTEMPORARY FEATURE
    P40-41 ...
    Mark Wright Mark Wright November 2014 Sinclair Miscellaneous
  • Retro GamerDoes anybody know when the next issue of Retro Gamer will be out? They told me to include an article about the Spectrum30 show in the News section an…

    ... it's more along the lines of "mass-market video game ...
    P34 ADSPACE
    P35-39 CONTEMPORARY FEATURE
    P40-41 ...
    polomint polomint November 2014 Sinclair Miscellaneous
  • 64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…

    ... of scrolling only (horizontal or vertical) and optimising around that. The ... pixels in under four scan lines on a 128K, surely ...
    joefish joefish December 2014 Development
  • Spectrum Emulator that supports low resolutions and runs smoothlyHello to All, I have been trying to find a spectrum emulator that will work well through my CRT TV (using RGB to Scart) Most emulators seem to supp…

    ... actual border-lines; the others may be either border or vertical retrace ... .

    Then the 192 screen+border lines are ... displayed, followed by 56 border lines again"


    So ...
    Arjun Arjun December 2014 Emulators
  • Uridium possible with more colour??Having seen the MSX version of Uridium mentioned in another thread I wondered if the Spectrum could produce anything similiar, and had a go at a mock…

    ... amounts of time to redraw lines of the screen. You could ... perhaps count on two raster lines passing you by for every ... multicolour painting for a 16x192 vertical strip.

    The rest ...
    joefish joefish January 2015 New game ideas
  • Spectrum +2 (grey) RAM issueHi, I?ve got a ZX Spectrum +2 (grey) with what I think is a RAM issue. I used to be able to load games very reliably by playing converted TAPs and …

    ... /1x7hjbipv3saa8l/2015-02-02%2018.39.24.jpg?dl=0[/url ... one, albiet with black diagonal lines on my (admittedly naff) TV ...
    CRNorris CRNorris February 2015 Hardware
  • A vehicle for wireframe engineHi, I'm playing with wireframe graphics right now. I'm open for ideas for (simple) game that would use wireframe engine. So if you have an idea, plea…

    ... fact that special cases of vertical and horizontal line are not ... can draw just 3-4 lines from left border to right ... border. Or much more short lines, obviously.
    In 3d it ...
    catmeows catmeows February 2015 New game ideas
  • Testers for new z88dk clibA long (long, long, long) time ago a few people offered to help test the new clib in z88dk. Much time has passed since then and I won't hold people,…

    ... masked sprites move in straight lines
    // at various speeds, bouncing ... pixels
    char dy; // signed vertical speed in pixels
    };
    Alcoholics Anonymous Alcoholics Anonymous February 2015 Development
  • Using a TV as a pc monitor full timeRight<br><br>the pc i use is in the corner of the bedroom, the tv / dvd player / wii is in the other corner. theres a connection to connect a pc to t…

    ... I still miss the heady vertical resolution of 1600x1200 a decade ... over multiple screens it all lines up nicely.
    Scottie_uk Scottie_uk June 2015 Chit chat
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... -bit decoder to 8 output lines rather than OR or NAND ... . And it does have a vertical expansion port, so you could ...
    joefish joefish June 2015 Emulators
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    ... for the upper address lines that using these alone ... to use lower address lines to make the distinction, ... advantage in using upper lines, especially as it would ... take it decoding of lines other than A0 for ... And it does have a vertical expansion port, so you ...
    zub zub June 2015 Emulators
  • TV Pal, odd and even framesI have been researching, but haven't found any real interesting information on this subject, so far. What I mean is, since TV PAL signal is interl…

    ... scanlines totaling 625 PAL scan lines.

    But it ... data, hence halving PAL scan lines, which also helps to ... br />
    8 scan lines for vertical synch period
    56 scan ... lines, for top border
    ...
    RMartins RMartins August 2015 Development
  • TV Pal, odd and even framesI have been researching, but haven't found any real interesting information on this subject, so far. What I mean is, since TV PAL signal is interl…

    ... mean the R+G+B vertical strips in a tiny ... monitor, which had many more lines of pixels, and all ... can clearly see the lines it's scanning and ... only have redrawn all its lines after two frames. But ... moving object, but alternate lines of the screen are lagging ...
    joefish joefish August 2015 Development
  • Raycasting (3D Games!) with SpecBAS<div><font face="Arial, Verdana"><span style="font-size: 13.3333330154419px; line-height: normal;">Here's one I wrote just recently. I wanted to see …

    ... closest vertical slice for each pixel column of the screen. Subsequent lines ... discarded. Then you render in vertical columns from your buffer. I ...
    joefish joefish August 2015 Sinclair Basic
  • TV Pal, odd and even framesI have been researching, but haven't found any real interesting information on this subject, so far. What I mean is, since TV PAL signal is interl…

    ... .png[/img]
    Trigger (vertical mark), at start of PAL ... /> - Line #3 Horizontal Sync (noticed vertical trigger mark "black arrow", pointing ... And finally, here is the Vertical Sync, after PAL line #306 ... looking to be around 4 lines width instead of 8.
    RMartins RMartins August 2015 Development
  • Newbie Hardware QuestionsI just recently aquired my first Spectrum, a +2, and I'm in the process of getting acquainted with it. Being a newbie I had some questions, which …

    ... Ohm resistors on the RGB lines, but its a little in ... 's also a lot of vertical bar noise with this coverter ... combining the BRIGHT and RGB lines in the cable as it ...
    Questarian Questarian August 2015 Hardware
  • 1985-2015.A topic where we can review games released on the Speccy 30 years ago, or, anyway, talk about that year.

    ... vertical shoot'em up where you must advance through the enemy lines ...
    JuanF. Ramirez JuanF. Ramirez September 2015 Games
  • Subtract 4 from an addressThis is a novice Z80 question really: I'm trying to vertical scroll my back buffer, but I'm not sure of the quickest way to apply an offset and mo…

    ... frame while scrolling? Actually during vertical scrolling you don't have ... from the 2nd line. Draw lines to the end of buffer ...
    Ralf Ralf September 2015 Development
  • z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…

    ... as 0 and then two lines of code were being to ... it.
    ld a,(ycoord) ; vertical position.
    rst 16 ; print ... coords.
    ld hl,ycoord ; vertical position.
    dec (hl) ; ... it.
    ld a,(ycoord) ; vertical position.
    rst 16 ; print ...
    antonyjones101 antonyjones101 September 2015 Development
  • z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…

    ... x, y; where x is vertical and y is horizontal" instead ... as 0 and then two lines of code were being to ...
    lunarul lunarul September 2015 Development
  • Angles and blocksHelp! Sprites! Blocks! Angles! I have a sprite that has a choice of 64 angles, and want it to deflect on collision with blocks. http://i1142…

    ... -based system, using those diagonal lines like a laser for instance ... assume first-off either a vertical or horizontal wall. You exchange ...
    joefish joefish September 2015 Development
  • Angles and blocksHelp! Sprites! Blocks! Angles! I have a sprite that has a choice of 64 angles, and want it to deflect on collision with blocks. http://i1142…

    ... -based system, using those diagonal lines like a laser for instance ... assume first-off either a vertical or horizontal wall. You exchange ...
    Einar Saukas Einar Saukas September 2015 Development
  • Angles and blocksHelp! Sprites! Blocks! Angles! I have a sprite that has a choice of 64 angles, and want it to deflect on collision with blocks. http://i1142…

    ... of pixels instead of detection lines). Now F will be center ... , but if you only have vertical and horizontal walls, you will ...
    Einar Saukas Einar Saukas September 2015 Development
  • Ninjaman 8-way scrolling 50Hz multicolour demo :-)Here's a demo I've been working on for a while. The goal was to make the best scrolling routine possible on a humble 48K ZX Spectrum. I was origin…

    ... every 8 lines, but you get to pick the vertical start position ... , which is what allows vertical scrolling. It [i]may[/i ...
    Kayamon Kayamon November 2015 Development
  • Some downloads fail meI want download the schema of the Spectrum +2A and I can not because appears a user and password request in all links of "SCHEMATICS, MANUALS AND TEC…

    ... don't believe because the vertical synchronism has 50 hz but ... load of save in the lines of the border of the ...
    DAVID BRUNNER DAVID BRUNNER November 2015 Hardware
  • 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…

    ... / brightness / contrast settings.

    Vertical banding (like shown in 2nd ... in video encoder / ULA supply lines. A suitable coil in series ...
    RetroTechie RetroTechie December 2015 Hardware
  • 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…

    ... options.[/quote][quote="RetroTechie;843635"]Vertical banding (like shown in 2nd ... in video encoder / ULA supply lines. A suitable coil in series ...
    1024MAK 1024MAK December 2015 Hardware
  • ZX Uno programming competition[b]Rules[/b] - The game tematic is free. The languaje can be english or spanish. - You must use Radastan video mode in the game as principal. - …

    ... ZX Spectrum. We have half vertical and horizontal resolution (128x96) and ... .com/forum/viewforum.php?f=39"]http://www.zxuno.com/forum ...
    radastan radastan December 2015 Announcements
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