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<1…16171819202122…34>
  • 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
  • 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
  • smooth movement in basicWas trying to figure this out myself but i would like to be pointed in right direction now :-). How do I make something move in Basic without gettin…

    ... lot more lines than the BASIC as well, and takes up ...
    ld bc,5
    ldir ;copy by,bx,my,mx ...
    Battle Bunny Battle Bunny October 2012 Sinclair Basic
  • USR 0I've heard a lot about loading a program in USR 0 (and yes, I know how to do it - "RANDOMIZE USR 0" in 128 BASIC). What I want to know is: What is th…

    ... ]MOD48
    LD HL,20;Basic line number
    LD (#5C42 ... ,HL
    LD C,4:LDIR
    RES 4,(IY+1 ...
    g0blinish g0blinish November 2012 Hardware
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... RANDOMIZE USR command in Spectrum BASIC depacks the file at a ... the dzx7_standard.asm, that the LDIR and LDI at copy_byte_loop should ... /> pop de ; DE = destination
    ldir
    exit:
    pop hl ...
    FrankT FrankT January 2013 Brand new software
  • RAM used / corrupted by +3DOSAs I said previously, [url=http://www.worldofspectrum.org/forums/showthread.php?t=41775]I'm trying to put some games in hard disk[/url] so they can b…

    ... image contains: a one-line BASIC loader "DISK"; the patch code ...
    ld (hl),$00
    ldir ; clear DOS workspace variables
    [/list]

    The BASIC loader is just:
    [code ...
    Battle Bunny Battle Bunny January 2013 Games
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... 1k games use to fool basic into running machine code? Which ... compress_tap.asm
    gentape %2 basic '%6' 0 compress_tap.bin ^
    push de
    ldir
    ret
    IF back ...
    antoniovillena antoniovillena January 2013 Development
  • Converting games to disk: difficult loadersThis thread has an spanish version in foro speccy, but I haven't gathered enough information to overcome my problems. I've been converting some game…

    ... lower address which overwrites the basic area. This is the offending ...
    LD BC,40401
    LDIR[/code]
    Set a bp ...
    LD BC,40401
    LDIR
    LD SP,64256
    FrankT FrankT January 2013 Games
  • +3e filebrowserHello everyone, Im writing a game/program loader for the +3e (with an IDE interface, but it can work with floppies too). The program lets you choose…

    ... ), will load & run a BASIC program saved with an auto ... -LINE number and return to BASIC afterwards (ie. it's just ... ,7
    push de
    ldir
    ld a,$84 ;parameter ...
    Battle Bunny Battle Bunny January 2013 Development
  • Red DwarfA Red Dwarf video game - good or bad idea? (given its recent resurgence in popularity in the UK) My ideas: [b]Plots[/b] - An interquel which bridg…

    I've done it in BASIC... sorta. It seems to work. ... it's not exactly "in BASIC", but you don't need ... page in the suited page, LDIR 16Kb from $8000 to $ ...
    ld bc, 16384
    ldir

    ld A, (# ...
    na_th_an na_th_an February 2013 New game ideas
  • Bottom 4 lines of the screen fileI'm wanting to save the bottom 4 lines of the display memory (AT 20,0 to #0; AT 1,31) 23168 is the start of the attributes and its length will be 32…

    ... four print lines. In BASIC I would have done a ... loops: ld c,l
    ldir
    ld l,$80
    ld c,l
    ldir
    ret[/code]
    ... br /> ld c,e
    ldir
    ret[/code]
    ...
    Battle Bunny Battle Bunny February 2013 Development
  • Screens and BasicA question about the ZX screens. I am using software to convert my own art and drawings to the ZX Spectrum. I have some tools to change .jpg files in…

    ... to use them in a BASIC program?
    Any clue? There ... are a purist and want BASIC only in the program ; Use ... =33911&highlight=screen%24+basic"]BattleBunny Screen copy[/URL]
    ldir+6912+16384"]copy block routine ...
    Dr BEEP Dr BEEP February 2013 Sinclair Basic
  • Hacking a game MAJIKAZOHello, I am trying to put a recent game called MAJIKAZO on disk. However, the loader is written for tape only, so I have to find a way how to rewrit…

    ... halt
    di
    ldir
    ; This code copies the ... /> ld bc,29
    ldir
    jp 65024
    ... straight to the screen from basic.

    The ... will load and run from basic.
    CLEAR 24575: ... block to disk, a basic disk loader should load ...
    FrankT FrankT May 2013 Development
  • Hacking a game MAJIKAZOHello, I am trying to put a recent game called MAJIKAZO on disk. However, the loader is written for tape only, so I have to find a way how to rewrit…

    ... halt
    di
    ldir
    ; This code copies the ... /> ld bc,29
    ldir
    jp 65024
    ... straight to the screen from basic.

    The ... will load and run from basic.
    CLEAR 24575: ... block to disk, a basic disk loader should load ...
    Speccyman Speccyman June 2013 Development
  • Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…

    ... LD (HL),A
    LDIR ;erase screen
    PI_1: ... ld (hl),$00
    ldir ; clear DOS workspace variables ... ld bc,$0d60
    ldir ;restore page 7 $db00 ... , ROM 3 (BASIC)!!
    [/code]
    Battle Bunny Battle Bunny July 2013 Games
  • Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…

    ... declared sequentially in the BASIC, as the program ... ld bc,12
    ldir
    ld hl, ... ld bc,12
    ldir
    ; 402 LET ... /> ld bc,4
    ldir
    ret

    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …

    ...
    LD BC,16384
    LDIR ; copy image of custom zx ... +5 and modify rom from basic. Also is possible switch between ... via one OUT command in basic. (OUT 23,64+5 = own ...
    velesoft velesoft August 2013 Hardware
  • Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…

    ... opcodes from a book in BASIC editor and wondering why the ... hell I was getting BASIC keycodes instead of the neat ... + manual which set up an ldir to fill the screen with ...
    u6c87 u6c87 August 2013 Development
<1…16171819202122…34>

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