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<1234567…34>
  • 128 spectrum zx +2 is stuck on test screenhey this is my first spectrum i bought it from a boot-sale for 2 pound and it came with loads of games but when i turn it on i get the test screen an…

    ... it on i get the test screen and it makes the beep ... keeps going bk to the test screen can any one help?
    omighty_one omighty_one June 2007 Hardware
  • +2A shows test screen and beepsNew day, new problem. A +2A, which seems to be in good condition, shows the colored test screen when powered-up and beeps about once every second. Am…

    ... good condition, shows the colored test screen when powered-up and beeps ...
    schombi schombi October 2013 Hardware
  • test screencan someone help? iv got a spectrum 128k +2 B i found in the attic form whenn i was a kid. it powers up only it starts on the test screen with out me…

    ... only it starts on the test screen with out me starting it ...
    bartiddu bartiddu May 2014 Sinclair Miscellaneous
  • ZX Spectrum 2+ Stuck on Test ScreenHello, I hope you can point me in the right direction. I recently purchased a ZX Spectrum 2+ which I've never owned before or used. After booting,…

    ... , it gets stuck on the "test screen". After doing some reading I ... understand you can boot this screen by holding break when pressing ... is the screenshot of the test page I am seeing: http ...
    eDrinker eDrinker September 2015 Hardware
  • Test of screen switching timings.I modified the btime.tap test by Jan Bobrowski to explore the timing of screen switching. The new test, ptime-128, produces different results on diff…

    ... .tap test by Jan Bobrowski to explore the timing of screen switching ... . The new test, ptime-128, produces different results ... 128/gray +2 and black +2A/+3, who will launch the test ... ;d=1510766554"]Download the ptime-128 test[/url]
    weiv weiv November 2017 Emulators
  • TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …

    ... />
    Menu controll:
    After start menu you can see in ... testing next pages. At end start 128 test
    again. You can ... (16384-32767).
    At end start test again.
    If bad memory ... border lines.
    At end start test again.
    If bad memory ...
    velesoft velesoft August 2012 Sinclair Miscellaneous
  • Reading from the 128 Serial PortDon't shout at me if this is a silly question. I have Googled extensively, and searched the forums, but I can't find anything discussing what seems t…

    ... .
    I used a test file holding 6912 times CHR ... waits for the PC to start sending, and synchronizes on ... the start bits.
    The MC:
    LD DE,16384 ;screen$

    start DI
    DEC DE ...
    roko roko June 2009 Sinclair Basic
  • Preliminary MontyHey All... A new 2009 production (port from Atari) of a game called "Preliminary Monty" is out. It is a VERY nice platform game - with a bit "crude…

    ... contain bad joystick controll. Before start game must be tested joystick ... #FF of attribute data from screen. All unused ports work as ... /> (but this work only if screen area 16384-23295 is filled ... port after interrupt
    AND 128 ;test only D7
    LD BC ...
    velesoft velesoft September 2009 Games
  • Speccy2010 - pentagon emulation using GlukIs anyone here familar with Speccy2010 (FPGA Russian Sinclair Spectrum clone). ? I'm using Pentagon mode on Speccy2010 (it uses something called Glu…

    ... = RGB color test screen
    RESET+U = reset to 128 menu
    ... = boot from HDD
    P = start Perfect Commander for manage FDD ... (128kB version)
    C = start Perfect Commander for manage FDD ... rom code)
    R = start Real Commander from ram page ...
    velesoft velesoft May 2011 Hardware
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... count
    ld b, 96 + 128 ; 224 characters in 8-bit ... count
    push de ; stack screen start address
    push hl ; stack ... ) ; get it
    cp ctrl_number ; test for hidden number marker
    chev chev October 2013 Development
  • alternate BASIC ROMI've come up with a few patches to the standard ROM to make it use the 128 shadow screen by default. The ROM is reorganised as follows: RAMTOP is se…

    ... make it use the 128 shadow screen by default. The ... 0xbfff
    system variables start at 0x4000
    just ...
    the shadow screen is selected by default< ... br /> the shadow screen is paged into 0xc000 ... now write to the upper screen area, including PLOT
    chev chev October 2008 Sinclair Basic
  • +3 FaultsI have some Spectrum +3s for testing - looks like they all need drive belts. One will not start up and shows a screen of yellowy green, then one of …

    ... /> One will not start up and shows a screen of yellowy green ... a long beep, showed a screen with 1987 in different backgrounds ... then started showing that same screen.

    Disconnect the keyboard ... +3 have a keyboard self-test on start-up?
    rwap rwap May 2010 Hardware
  • A fast DRAW routineI was investigating how to speed up the line drawing for the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=20225"]BASIC compiler[/URL]…

    ... set SCREEN_ADDR with the desired screen start (untested).

    ... /> bit 2, a ; Test for INVERSE1
    jr z ... /> bit 1, c ; Test for OVER
    jr z ... mask
    ; H'L' = Screen Address of pixel

    boriel boriel December 2010 Development
  • Speccy 128 Shadow screen.How much is the shadow screen used in 128k commercial software? I ask because I am looking at putting 128k of memory in the 48k setup I have been bu…

    How much is the shadow screen used in 128k commercial software?< ...
    spodula spodula January 2011 Hardware
  • Problem with BC corrupting after DJNZJust for fun, I'm messing around trying to get the level maps from Lemmings to display on the screen with machine code. It's been ages since I did an…

    ... 128 pixels, or 64 bytes per line stored sequentially unlike the screen ...
    LD DE,16384 ; SCREEN START ADD

    LOOP1 LD ... /> INC E ; ADD 256 TO SCREEN ADDRESS TO GET TO NEXT ... getting what I expected on screen, after popping BC the DJNZ ...
    mulder mulder January 2016 Development
  • ZXSCLZF - Yet another Screen CompressorQuick disclaimer before I continue, this compressor does not shrink screens as small as some of the others posted here, in particular the very good z…

    ... =buffer+_START; // move screen check start to start of buffer attr space ...
    ld hl,screen ; 10t - start location of the compression< ... ld d,(hl) ; 7t - start screen pos into de
    inc ... ld l,(hl) ; 4t - get screen start low byte
    ld h ...
    TomD TomD April 2017 Development
  • Please, convert your game to EP128The Enterprise is a Zilog Z80-based home computer first produced in 1985. It can simulate the specy screen, so most of the EP128 game is specy conver…

    ... It can simulate the specy screen, so most of the EP128 ... sound chip, so the 128 musics are convertable easily.

    A test screen of Wizards Lair:
    https ... =20101;image

    Test screen of Popeye (right):
    https ...
    endi endi January 2018 Brand new software
  • Textured Scanline Flood Fill for ZX Spectrum 48KPity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the…

    ... Leave some space for shadow screen buffer
    20 GO SUB ... />
    200 REM Coordinates to start fill
    210 POKE 63694 ...
    Volker Volker February 2021 Software
  • BASIC error messagesDoes anyone know what all the numbers mean after the various error messages in Sinclair BASIC? Does anyone know how to instigate each error type?

    ... reinforces my belief that the 128 ROMs were just a joke ... mode", and the "1987 colour test screen".

    I didn't ...
    Digital Prawn Digital Prawn June 2008 Sinclair Miscellaneous
  • Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…

    ... some test code to print numbers and text to the screen:

    ; Printing test to the screen.


    start ei ; Assume BASIC ...
    ld a,2 ; Open channel 2 (screen ...
    ASM ASM November 2010 Development
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... bottom two thirds of the screen:

    SNAPSHOT = 49152 ... (SCREEN) - 4096 (TWO THIRDS) = 38144 BYTES so that is 27392 start address ... load)

    The first screen is complete garbage but it ... system functioned. I have a test screen saved as an 8 BIT ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • Newbie QuestionsI have just purchased my first Speccy! It should be shipped to me (in the U.S.A.) very soon. I'm a ZX newbie & I have some questions :-D First of al…

    ... located a "Toastrack" ZX Spectrum 128. Here are my newbies questions ... the Speccy? Is there some "test" TAP image I should run ... think there is a test screen on the 128 (or maybe that was ... C64 users ;-)

    The 128 manual is here [url]http ...
    R-Tape R-Tape February 2012 Hardware
  • Newbie QuestionsI have just purchased my first Speccy! It should be shipped to me (in the U.S.A.) very soon. I'm a ZX newbie & I have some questions :-D First of al…

    ... think there is a test screen on the 128 (or maybe that was ... C64 users ;-)

    The 128 manual is here [url]http ... usually come with ZX Spectrum 128 & a pair (?) of ZX ...
    zolli zolli February 2012 Hardware
  • Music cassettesWas there ever a utility on the Spectrum which when you to play an audio cassette in the player enabled the loading border stripes 'move to the music…

    ... keys together while the self-test screen is showing.[/QUOTE]

    test this in an emulator though ... /> (couldn't find that "self-test screen" in the 128 on-screen menu)
    ZnorXman ZnorXman March 2012 Sinclair Miscellaneous
  • Music cassettesWas there ever a utility on the Spectrum which when you to play an audio cassette in the player enabled the loading border stripes 'move to the music…

    [QUOTE=ZnorXman;609737]Guess I didn't know that! How would I test this in an emulator though?
    (couldn't find that "self-test screen" in the 128 on-screen menu)[/QUOTE]

    Hold down BREAK while powering-up or resetting.
    John Elliott John Elliott March 2012 Sinclair Miscellaneous
  • Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …

    ... outline of how the screen updates are structured in ... the active area of the screen. Start updating (in a linear, ... of waiting for the screen ray is used in ... thing? My screen copy routine was just a test one that ... ,(255) to change then start moving data, as this ...
    R-Tape R-Tape May 2012 Development
<1234567…34>

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