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  • 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–…

    ... ’s stable per se, but BASIC itself can be dodgy, so ...
    ld (hl),$fe
    ldir

    ld hl,$fefe ...
    Ast_A_Moore Ast_A_Moore February 2018 Development
  • Loading Images/Screens mid-gameHi all, Looking to get back into a bit of coding and I couldn't figure out a way to do the following: I have an image/SCREEN that I'd like to b…

    LDIR is probably your friend here. ...
    LD BC,LENGTH
    LDIR
    RET (if needed!)
    LDIR[/b] ; do it!
    [b]RET[/b] ; drop back to Basic ...
    spider spider April 2018 Sinclair Basic
  • Currah uSpeech ROM Paging and BootyHi, When I emulated the Currah uSpeech for [url="http://www.inkland.org.uk/inkspector"]InkSpector2[/url], I made it page in its own ROM on memory …

    ... does, that explains how that "ldir" activates the hidden game in ... you get "C Nonsense in BASIC, 0:1" then the uSpeech ...
    inky inky October 2019 Hardware
  • Bit of fun - one change onlyI also posted this on another marque's forum (for their products) to see. Its just a bit of fun really. OK, if you could of made one change to a S…

    ... again and doing this from Basic would be a no-no ... code to execute to say LDIR something into this space perhaps ...
    spider spider July 2020 Hardware
  • Dynamite Dan II - Island 6 - HELP!Hi all, can someone possibly create a snapshot of Island 6 (car park island) on Dynamite Dan II for me please? I'm trying to work out why half the…

    ... doing USR 0 in 128 basic (this will keep AY and ... features), or go to 48 Basic (no AY). Or from 128 ...
    ld (hl),l
    ldir ; clear printer buffer
    [/code ... 't set to BLACK from basic.
    [code]
    ld hl ...
    FrankT FrankT December 2020 Games
  • Microdrive logic flow.Hi all, I've finally gotten my hands on an Interface 1 and Microdrive to continue my project, and have been analyzing the Microdrive with a logic …

    ... quickly as the Spectrum can LDIR.

    There's one ... Spectrum command-line or from Basic. Also a DOS style console ... ";8;"SHELL" might load a basic SHELL program to talk more ...
    cj7hawk cj7hawk June 2021 Hardware
  • Things that people >= 40 (ish) would recognize (and others would likely not)#1: Used to see these all over the place, usually right above the bath tub. [img]http://www.constructionphotography.com/ImageThumbs/A052-01718/3/A0…

    ... to deal with just in Basic.[/quote]
    When I started ... the first of these)
    - LDIR, LDDR (marvellous, marvellous additions which ...
    The Mighty Dopethrone The Mighty Dopethrone August 2021 Chit chat
  • Multi-tasking OS on the Spectrum?Do you think it is possible to build a multi-tasking operating system on the Spectrum? That is, most important the ability to have several task run…

    ... ...

    That's the basic concept. Now, you could hook ... need to replace mass instructions (LDIR, etc.) with jumps to implementation ...
    tstih tstih February 2022 Development
  • 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…

    ... /> ld bc, 21*8
    ldir

    setchan equ 0x1601 ... fetchan
    ret ; back to basic


    ; Print text ...
    Paradigm Shifter Paradigm Shifter June 2022 Development
  • Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…

    ... /> Symbol shift + space: return to basic. Originally had this as caps ... /> ld bc, 32
    ldir
    pop bc
    ENDM ... /> ld bc, 32
    ldir
    pop bc
    ENDM ... ld bc, BSS_LEN-1
    ldir

    IF RETURN_TO_BASIC
    Paradigm Shifter Paradigm Shifter August 2022 Development
  • Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…

    ...
    SymShift+Space: Exit to basic

    [code]
    ; ... /> ld bc, 32
    ldir
    pop bc
    ENDM ... /> ld bc, 32
    ldir
    pop bc
    ENDM ... /> ld bc, BSS_LEN-1
    ldir

    IF RETURN_TO_BASIC
    Paradigm Shifter Paradigm Shifter September 2022 Development
  • New release of ZEsarUXFound today by chance on: [url]https://github.com/chernandezba/zesarux/releases/tag/10.1-13122021[/url] [quote]ZEsarUX-10.1 Beta1 Pre-release che…

    ... browser: show autostart line on basic blocks

    Fixes:
    LDIR, etc) and interrupts
    Fixed ...
    Luzie Luzie October 2022 Emulators
  • Currah MicroSourceThis is an interesting one for the experts to mull over. I've got (and love) a MicroSource interface from Currah which consisted of an 8K ROM provid…

    ... providing assembly (excellent), forth (v. basic) and debug facility.

    Chris Chris August 2001 Emulators
  • zx32: cursor keysAre the cursor keys emulated on zx32? I ask because i want to select the 128k Basic option from the opening menu in Spectrum 128 mode, but when I pre…

    ... want to select the 128k Basic option from the opening menu ... how do I select 128K basic in zx32?
    Spector Spector July 2001 Emulators
  • Idea about improving EmulatorHi, I got a bright idea today how to improve such excellent emulators a bit more. Okay, disassemblers are available in nearly every one new released …

    ... how about a build in Basic compiler (much like HiSoft Colt ... and bit-test, or HiSoft Basic 1.1)?
    In fact ... compiler. The extended basic could base on Beta Basic, Laser Basic (Laser Compiler ... was lame) or Mega Basic and can include extra commands ...
    LCD LCD April 2001 Emulators
  • How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…

    ... /4a and when using extended basic with its so simple sprite ... wasnt very good with speccy basic as well all this peek ...
    Andy Gurr Andy Gurr January 2002 Games
  • Head Coach - where can i find it to download?Does anyone remember a game for the spectrum , called Head Coach? It was a very simple coaching american football game, and was very basic, and very…

    ... football game, and was very basic, and very addictable! I need ...
    Matt Matt December 2001 Games
  • inRetroSpectIf any1 is interested I have made my Speccy Database program (inRetroSpect) available to any1 who's interested!! It's available at: [url]http://www…

    ... /> It's at its most basic point for a release at ...
    Chris Chris December 2001 Games
  • Interface for PC ZXSee last entry of former TOPIC. I'm working on the interface. Info about it on MISCELLANEOUS Author: Arjun (---.bng.vsnl.net.in) Date: 08-13-01 …

    ... ever program was TI extended Basic on the TI99 4A...i ... that on pc,,,TI extended Basic language...any chance you could ...
    Dr BEEP Dr BEEP November 2001 Games
  • moneyWhen i was younger and writing speccy games in basic with the occasionaly machine code subroutine, i used to dream of writing a hit game and making a…

    ... and writing speccy games in basic with the occasionaly machine code ...
    neil neil September 2001 Games
  • What's this racing game?Hi 2 everyone who likes Spectrum. Does anyone know what was the name of this RACING game. It was 2 words i'm pretty sure. It used the ZX Spectrum ba…

    ... . It used the ZX Spectrum basic font (you know what i ...
    Martin Martin September 2001 Games
  • OmegaAnybody know where I can get a version of this game once played on Spectrum? White lines on blue background. Build your own Robots and send on task t…

    Anybody know where I can get a version of this game once played on Spectrum?
    White lines on blue background. Build your own Robots and send on task to disarm reactors on a ship. Basic but fun.
    Thanks
    Steve Newport Steve Newport September 2001 Games
  • How did people program GamesI have been wondering how people wrote games. Did they use basic and just type in to the spectrum interface and save it. Or did they use assembler, a…

    ... wrote games. Did they use basic and just type in to ...
    Duxbuz Duxbuz August 2001 Games
  • Spectrum +3 tape to discHi I have ZX Spectrum +3 and about 20 blank disks, I need to know if there is a way to copy games from tape to disk i.e a basic program I could write.

    Hi I have ZX Spectrum +3 and about 20 blank disks, I need to know if there is a way to copy games from tape to disk i.e a basic program I could write.
    Steven Banner Steven Banner February 2002 Sinclair Miscellaneous
  • Thanks for the memories... is it 16k or 48k? Hi. At three different flea markets in Gothenburg, Sweden I found just as many Spectrums... (and a ZX81! [img]/__forums/images/smiles/icon_smile.gif…

    ... RAM-memory?

    Most basic-dialects has commands for that ...
    Lars Lindblad Lars Lindblad January 2002 Sinclair Miscellaneous
  • Anyone Recognizes This Loader?Hi there! I live in Argentina. I have a -dead by now- CZ Spectrum (a ZX clone made by an argentinian company, Czerweny, which used to make... Excell…

    ... headers):

    A single BASIC loader (no assembly), which LOADs ... . The last sentence in the BASIC loader was invariably RANDOMIZE USR ...
    Marcelo Marcelo November 2001 Sinclair Miscellaneous
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
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    harriusherbartio on April 21
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    harriusherbartio on April 21
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