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<1…21222324252627…34>
  • Loading the display with data from memoryTrying to load part of the screen(4k's worth) with data from memory location 53000, I've written this routine, but it doesnt work... [I]ld b,4000 ld…

    [QUOTE=Ralf;595779]:lol:

    How to make everybody feeling like a true expert with asking some very basic and trivial thing ;)[/QUOTE]

    I notice Ralph didn't post..... that must mean he doesn't know how to do LDIR.....:-P:-P
    R-Tape R-Tape January 2012 Development
  • Annoying colour issues with UDGsMe again... Flush with the success of finding the latest version of BASin to play with I tried to buff the graphics of the various screen items All…

    ... /> To minimise the effect in BASIC you need to ensure that ... couple (of many) examples of animation across multi-coloured backgrounds.
    Battle Bunny Battle Bunny January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... you're calling it from BASIC then super-optimisation is probably ... clear the screen for a BASIC program was simply to set ...
    LD BC,767
    LDIR
    RET

    Doing ...
    joefish joefish January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... it?

    Surely the "LDIR" is fast enough for most ... do all the "housekeeping" for BASIC use?
    SKR SKR January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... it?

    Surely the "LDIR" is fast enough for most ... do all the "housekeeping" for BASIC use?[/QUOTE]

    Well ...
    Paddy Coleman Paddy Coleman January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... [/QUOTE]

    reverse the "LDIR" routine supplied earlier, but again ... "PRINT AT 0,0;" From Basic job done.
    SKR SKR January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... could load it to? then LDIR it to screen?[/QUOTE]
    BASIC program uses 17.1K (prior ... what I have asked ZX BASIC to do and how well ...
    Paddy Coleman Paddy Coleman January 2012 Sinclair Basic
  • Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…

    ... a 128k machine in 128K BASIC, and then you switch to ... and go back to the BASIC loader. That is, to directly ...
    ld bc, 16384
    ldir
    ld A,#10 ;ROM1 ...
    mcleod_ideafix mcleod_ideafix March 2012 Games
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... ,0: REM 2 frames per animation
    #asm
    ld a ... ,7: REM 4 frames per animation
    #asm
    ld a ...
    Timmy Timmy March 2012 Brand new software
  • New project: CargandoLeches. Ultraloads with ROMHi This project has started months ago, between decicoder, macleod and me. Uses the best modulation of k7zx (throwing shavings). But this ultraloa…

    ...
    LD BC,16384
    LDIR
    XOR 32
    OUT ... in any time from ZX basic via OUT 23,64+31 ...
    velesoft velesoft March 2012 Development
  • Abbaye des morts[url]http://www.locomalito.com/juegos_abbaye_des_morts.php[/url] Looks like Spectrum, sounds like Spectrum, but it's not a Spectrum ('cause no colou…

    ... ]
    - AY music via small basic SoundTracker player, with liberal use ... the fly because with 50 animation frames for Billy and about ...
    Fikee Fikee March 2012 New game ideas
  • Limboanyone played Limbo on PSN? [youtube]GCA79zPaQe0[/youtube] I would image a game like this would work really well on the speccy

    ... for reality, totally realistic skeletal animation, skin textures, every lighting ... for, and the best facial animation of any game ever, ... too low resolution and the animation too limited (due to ... example, no doubt looks extremely basic to new players, and ...
    ewgf ewgf March 2012 New game ideas
  • Store and restore attribute valuesI am needing ideas on how to write a machine code routine that will store/restore (more important to restore) attribute values to the 22528 area. I …

    ... /> I did assembler & BASIC versions (summarised below) and, as ... is running. The BASIC version doesn't need ... COPY: ld bc,512
    ldir
    call $2d2b ;STACK ... ]

    [code]
    ----- BASIC version
    DEF FN p ...
    Battle Bunny Battle Bunny May 2012 Development
  • What if there was no memory or space limitation?What if there was no memory or space limitation? We've had topics about the limitations of the Speccy's hardware, topics where we discussed how good …

    ... point all RAM above the BASIC 48K becomes mostly irrelevant.[/QUOTE ... menu, decent game play, character animation, levels, sprites [I]and[/I ...
    zxbruno zxbruno May 2012 Sinclair Miscellaneous
  • Internal ROM expansionHas anybody designed a multiple-ROM interface that plugs into the internal ROM socket instead of plugging onto the edge connector? It would be useful…

    ... microdrive clone. Opus understands the BASIC syntax for InterFace1, but not ... 01 3c 00 $0ats
    ldir ; 82f3 ed b0 $10/$15ts ...
    jp jp May 2012 Hardware
  • SUPER INPUTA couple days ago I searched for an "INPUT string" routine that I could use in Assembly programs and supported multiple lines, but I found none. Thus…

    ... routine passing parameters through a BASIC variable. Can you see any ...
    jr z,NOTEXT
    ldir ;copy initial string to INPUT ...
    Einar Saukas Einar Saukas June 2012 Development
  • dungeon crawlerHi. I'm toying with idea of making simple dungeon crawler in spectrum basic and i actually got first version working somehow. [IMG]http://watashi.ic.…

    That's the incredibly amazing LDIR trick from pure BASIC or friend has developed. Quite genius, and a saver for BASIC coders.

    But... Does still work if you compile your code?
    na_th_an na_th_an July 2012 Sinclair Basic
  • Whats on your Disk?Following on from the highly popular whats on your C90 thread, how about whats on your disk? Having unearthed my 20+ year old MGT +D disks collection…

    ... br /> 5 CHANGER 2 ZX BASIC 10
    6 GRAPHICS ... /> 7 HEXENT 3 ZX BASIC 5
    8 SAMSYNTH ... /> 14 WINDAS 3 ZX BASIC 9999
    15 WINDACODE ... ZX SNP 48K
    52 LDIR 1 ZX EXECUTE
    ...
    obo obo July 2012 Sinclair Miscellaneous
  • Image To ZX Spec 1.3.2This release hasn't been heavily tested since I said some time ago I wasn't working on it anymore, that being said it seems very stable having spent …

    ... iPod advertisement video into an animation on the ZX81 without using ... characters that are accessible from BASIC are very similar to the ...
    zxbruno zxbruno July 2012 Announcements
  • 64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…

    ... guess the tremble is the BASIC ISR getting it he ... br /> ld bc, 512
    ldir

    ;; First we ... br /> ld bc, 512
    ldir

    ;; Page back ... br /> ld (hl), 15
    ldir
    ret

    ...
    na_th_an na_th_an July 2012 Development
  • 64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…

    ... into a Boriel's ZX Basic program...

    [ ... br /> ld bc, 512
    ldir

    ;; First we ... br /> ld bc, 512
    ldir

    ;; Page ... br /> ld (hl), 15
    ldir
    ret

    ...
    na_th_an na_th_an July 2012 Development
  • Switching 48/128 modes within a BASIC programI'm not sure what use this would be; ie. being able to switch between 48k and 128k modes and back again from within a continuously running BASIC prog…

    ... 9000 ;line number of BASIC error handler
    ... +$01) ;signal "128K BASIC" mode
    jr ... +$01) ;signal "48K BASIC" mode
    ld ... ld bc,$0004
    ldir ;replace channel info "P" ...
    Battle Bunny Battle Bunny July 2012 Sinclair Basic
  • Switching 48/128 modes within a BASIC programI'm not sure what use this would be; ie. being able to switch between 48k and 128k modes and back again from within a continuously running BASIC prog…

    ... ,9000 ;line number of BASIC error handler
    ld ... info for "P"
    ldir ;replace channel info "P" ... ),a ;switch "48K BASIC" or "128K BASIC" mode
    ld ... ;address of $FF in BASIC ROM, for report "0 ...
    Einar Saukas Einar Saukas July 2012 Sinclair Basic
  • DooM on Spectrum 128kHello my fellow WoS'ers My hope is that you can help me, recently I discovered a DooM clone -esque on the Humble spectrum, - here is a [URL="https:/…

    ... a couple of lines of BASIC to re-load and ... on tape, then a short BASIC + m/code program to load ... /> getput: ld bc,$c0
    ldir
    ret
    get: exx ... /> pgedit: ld bc,$800
    ldir
    call $5b00
    ret ...
    Battle Bunny Battle Bunny August 2012 Games
  • Divide HELP!Can someone help me out here? In order to get the latest and best version I'd need these. The Divide itself for ?40: [url]http://www.sellmyretro.co…

    ... easy program writed in ZX basic (+ small code). Can be loaded ... four 8kB CODE blocks for LDIR to divide ram pages 0 ...
    velesoft velesoft September 2012 Hardware
  • Assembly game programming on ZX how-to?Hi. I'm planning to build and release new software for the Speccy but I'm pretty lame as to handle its hardware despite a good mastery of Z80 assembl…

    ... to write the screen through LDIR because I never coded anything ... game, only small utilities comprehending basic text messages and static images ...
    pkersey pkersey September 2012 Development
  • my tiny intros[IMG]http://pouet.net/screenshots/60493.png[/IMG] [url]http://pouet.net/prod.php?which=60493[/url] the following work will appear behind Demosplash…

    ... a program is launched from BASIC, so EI isn't really ... still looks nice, and the animation is yet again a bit ... a RANDOMIZE USR N in BASIC, BC will be holding N ...
    Hikaru Hikaru October 2012 Development
  • my tiny intros[IMG]http://pouet.net/screenshots/60493.png[/IMG] [url]http://pouet.net/prod.php?which=60493[/url] the following work will appear behind Demosplash…

    ... a program is launched from BASIC, so EI isn't really ... still looks nice, and the animation is yet again a bit ... a RANDOMIZE USR N in BASIC, BC will be holding N ...
    g0blinish g0blinish October 2012 Development
<1…21222324252627…34>

Latest Posts

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