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<1…17181920212223…34>
  • Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…

    ... /> ld a,32 ;A litle loop to dec 32 from de ... if not end of slice loop
    ld a,8
    LuMan LuMan April 2014 Development
  • RS232 on Spectrum 128KDoes anyone actually use the RS232 port on the Spectrum 128K? Is there anything useful that can be done with it? I know about the keypad with the Sp…

    ... , with a proper MIDI current loop and MIDI connector this time ...
    rga24 rga24 May 2014 Hardware
  • Timex contended memory timings, the TS2068 kludge board and EXROM at $4000 - $7FFFI haven't seen this documented anywhere yet so I thought I'd share my findings. I've been investigating contended memory timings on the Timex Sinclai…

    ... location during the beep timing loop.

    When this program ...
    rga24 rga24 May 2014 Hardware
  • Optimal shifting for set pixel?Hi, I'm optimizing my set pixel code. For speed. But without using partitioned memory (i.e. a table on 256 byte boundary) I have optimal memory addr…

    ... /> scf ; our shift bit
    loop: rra ; to a
    djnz ... loop ; until apropriate position
    [/CODE]< ...
    tstih tstih May 2014 Development
  • New version Emulator ZEsarUX-1.0Hi I have uploaded a new version of my Spectrum/ZX80/ZX81 emulator. This is a major stable version, with real timing for all the models and with hi-…

    ... , snow in border, colour ula delay, interrupt starts at video display ...
    chernandezba chernandezba May 2014 Emulators
  • My youth, preserved forever....!A while back I asked for some help here and was given it! I wanted to know how to make the logo for my music channel into a Spectrum style loading sc…

    ... appearing pictures). Well, after much delay (and the birth of my ...
    Penetrator Penetrator June 2014 Sinclair Miscellaneous
  • festivalssince its glasto time thought wed best talk abou the festivals youve been to, the bands youve seen etc first glasto i went to was 26/27/28th june 19…

    ... /> rocket from the crypt
    loop guru
    faithless
    cornershop ...
    mel the bell mel the bell June 2014 Chit chat
  • Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…

    ... ,downloop ; if not repeat
    ; ... loop code sets every memory location ... +1 (H=1 after initial loop)
    0x11E7 JR NC,test_2 ...
    tstih tstih July 2014 Development
  • Problem Reading the KeyboardHi Folks, I'm working my way through Toni Baker's rather good book and thought I'd write some code to scan the keyboard and store the results so tha…

    ... area
    ;3 - Loop through the keyboard segments


    ;3 Loop through the keyboard segments
    LD BC,0x08 ;Loop through 8 keyboard segments
    DJNZ _keySegmentLoop ;Loop to process the next keyboard ...
    KrazyKattapilla KrazyKattapilla July 2014 Development
  • PLOTTER - display file utilityI've been disassembling Gyron and needed something to help with working out where things were being put on the screen, so I wrote this program. I was…

    ... $(a) gets stuck in a loop). I'll fix that in ...
    Battle Bunny Battle Bunny August 2014 Development
  • Rex: how to load Part 2?I tried typing: LOAD "PART2" as stated on the instructions, but the tape goes on a loop on both KLIVE and ZXSpin. Some time ago, Retro Gamer said tha…

    ... the tape goes on a loop on both KLIVE and ZXSpin ...
    Shrapnel Shrapnel September 2014 Games
  • My attempt to restore the CPU clock signalI know Winston has already got this, but I can't see any thread with details about it. Only wanted to share my (still early) results. I'm not taking…

    ... original clock with as little delay as possible.

    I ...
    mcleod_ideafix mcleod_ideafix September 2014 Hardware
  • Simple text scrolling routine...I'm having trouble writing a very simple text scroller, the idea is to use the ROM printer routine to print 32 characters each time the routine is ca…

    ...
    ld b,64
    loop
    ld a,r
    inc hl
    djnz loop
    ret

    dat ...
    daveysludge daveysludge September 2014 Development
  • ANN: Tipshop updated Tuesday, 30 September 2014Tuesday 30 September 2014 2 updates within a couple of weeks of each other - you're spoiled. Or something * JP provided a correction for a cheat fo…

    ... /> (that's not a time-loop - it's 3 different games ...
    hackersanon hackersanon September 2014 Announcements
  • Kempston joystick detectionIn both [url="http://skoolkit.ca/disassemblies/manic_miner/asm/34252.html#34332"]Manic Miner[/url] and [url="http://skoolkit.ca/disassemblies/jet_set…

    ... /> XOR A ; A=0
    LOOP:
    IN E,(C) ; Combine ...
    OR E
    DJNZ LOOP
    AND 32 ; Is a ...
    SkoolKid SkoolKid October 2014 Hardware
  • Help needed with a bit of code...My minds gone blank again I'm afraid, I'm having trouble with this routine that loads variables into memory then calls the corresponding routine. Th…

    ...
    ld de,adds
    loop
    ld a,(de)
    pop af
    djnz loop
    ret


    daveysludge daveysludge October 2014 Development
  • PS3 game recommendations for a noobHowdy! Disclaimer: If you can't be bothered to read the whole post, just recommend some must-have PS3 games :) I've finally decided to enter the (a…

    ... largely been out of the loop in terms of 'modern' gaming ...
    Maroc's Other Projection Maroc's Other Projection October 2014 Chit chat
  • Boomshine in SpecBASHere's a little game called "Boomshine": [url]http://www.k2xl.com/games/boomshine/[/url] It's a really nice, relaxing puzzle game about exploding b…

    ...
    140 REM main animation loop
    150 CLS 0: SCREEN ...
    Dunny Dunny November 2014 Sinclair Basic
  • Ensure my interrupt handler begins at the same T-stateHi! Is there a way to ensure that an IM 2 interrupt handler starts always at the same T-state (related to the moment the ULA triggers the INT line, w…

    ... of 4, and the main loop is full of HALT instructions ... key press and close the loop. The portion of instructions that ...
    mcleod_ideafix mcleod_ideafix November 2014 Development
  • Bug-Eyed Blob Things[URL="http://www.speccyjam.com/games/bug-eyed-blob-things/"]Bug-Eyed Blob Things[/URL] is a great game, that won the [URL="http://www.speccyjam.com/"…

    ... certainly enough for a main loop like this:

    [CODE ... , then a more efficient main loop would be:

    [CODE ...
    Einar Saukas Einar Saukas November 2014 New game ideas
  • Fast Condition TestingHello my friends, I have been writing some input and string handling routines in BASIC lately - yeah I could write them super fast in C/ASM via z88d…

    ... ]
    [B]REM ****** BEGIN INPUT LOOP *****[/B]

    LET c ...
    Zetr0 Zetr0 November 2014 Sinclair Basic
  • Strange keyboard port reads on 48+Hi all, I don't know whether it was already discussed (I also searched forum, but there are too much of results searching "48k keyboard" so I didn't…

    ...
    ret
    test
    loop
    rept 3270
    ld ... z
    endm
    jp loop
    [/CODE]

    compiled ...
    ub880d ub880d January 2015 Hardware
  • SpecBAS 0.830 Released!Hi guys - A new official release of SpecBAS has been released. The full changelog is below, but for now here's the download: [url]https://sites.goo…

    ... - DO 35: PRINT "X": LOOP will loop 35 times without needing a ... to fail
    Omitting a loop-control variable in FOR EACH ...
    The new, faster render loop caused out of bounds errors ... more than once in a loop
    INPUT now uses the ...
    Dunny Dunny February 2015 Sinclair Basic
  • MVC poserAnyone on here an MVC expert? I'm hoping there is... I have a slight problemo. In a nutshell, I have a model that has a collection of a different …

    ... using bog standard for each loop, populating each with some appointment ...
    STeaM STeaM February 2015 Chit chat
  • Playing AY music on the SpeccyCan anyone help with playing AY ripped music on the Speccy? So, let's say I want to play some ripped AY music, such as: [url]ftp://ftp.worldofspect…

    ... /> CALL 51500
    EI
    LOOP:
    HALT
    CALL 51802 ...
    JR LOOP



    Any ...
    badgyre badgyre February 2015 Development
  • SPIN AssemberHi, I'm in the early stages of learning assembler, and am now looking at some tutorials from Toni Baker in ZX Computing: [url]http://wos.meulie.net…

    ...
    ld (tvflag),00
    LOOP:
    ld A,"*"
    rst ... 10
    jr LOOP

    An invalid RST ...
    jonesypeter jonesypeter March 2015 Development
  • SpecBAS Screen wipeAn old effect, but a good one - you'll need this file: [url]https://sites.google.com/site/pauldunn/moon.png[/url] to run this program. [code] 10 REM…

    An old effect, but a good one - you'll need this file: [url]https://sites.google.com/site/pauldunn/moon.png[/url] to run this program.

    [code]
    10 REM Screen Wipe
    20 GRAPHIC NEW img LOAD "moon.png"
    30 PALETTE COPY img,0,256 TO ...
    Dunny Dunny March 2015 Sinclair Basic
  • 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 …

    ... screen. When drawn in a loop, you get a nice 3D ...
    Dunny Dunny May 2015 Sinclair Basic
  • password change is not workingpassword change is not working , you just keep going round in an endless loop<br><br>1) request form<br>2) change password<br>3) get sent another cha…

    password change is not working , you just keep going round in an endless loop

    1) request form
    2) change password
    3) get sent another change password form

    repeat........................
    gudbuddy gudbuddy May 2015 WoS/Forum Issues
  • I am Mushroomz!<p>No promises, but weird game in AGD combining 2 classics into one perhaps? Not sure.....Depends how it goes? May just be a clone of 1 classic inste…

    ... of 2? Been out the loop in any type game making ...
    dm_boozefreek dm_boozefreek June 2015 New game ideas
<1…17181920212223…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
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    John Elliott on April 21
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    rich_chandler on April 21
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