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<12345>
  • Routines listHi everyone I'm looking for a complete list of Z80 routines (8252, 8859, 5633...) Does it exist? Thanks

    Hi everyone
    I'm looking for a complete list of Z80 routines (8252, 8859, 5633...)
    Does it exist?
    Thanks
    alchemist alchemist May 2018 Assembler
  • A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…

    ... ;BORDER = 0
    call 8859 ;inside ROM routine BORDER ($2294 ... ;length of string
    call 8252 ;print string

    ... ld bc,5
    jp 8252 ;upon RETurn from the subroutine ... /> ld bc,7
    jp 8252

    as_is_key rst ...
    Ast_A_Moore Ast_A_Moore October 2017 Development
  • im having problems with zx spin. im getting invalid combination of opcodes and operands errorim trying to assemble this program: [code]org 40000 ld a,0 call 8859 ld (iy+83),7 ld a,2 call 5633 call 3435 ld a,2 call 5633 ld de,d…

    ... /> ld a,0
    call 8859
    ld (iy+83),7 ... /> ld bc,12
    call 8252
    ret


    digital digital June 2020 Assembler
  • how do i set this code up, so i can print more than one line of text?well i got it working but how do i set this code up, so i can print more than one line of text? with a loop or something? not sure where to start on …

    ... /> ld a,0
    call 8859
    ld (iy+83),7 ... /> ld bc,36
    call 8252
    call 3405
    ret ...
    digital digital June 2020 Assembler
  • How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…

    ... ,8 ; black border
    call 8859 ; We'll set the border ... to print

    call 8252 ;PRINTs string
    cp 22 ...
    alienbanana alienbanana February 2014 Development
  • A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…

    ... ;BORDER = 0
    call 8859 ;inside ROM routine BORDER ($2294 ... ;length of string
    call 8252 ;print string

    ... ld bc,5
    jp 8252 ;upon RETurn from the subroutine ... /> ld bc,7
    jp 8252

    as_is_key rst ...
    Ast_A_Moore Ast_A_Moore October 2017 Development
  • im having problems with zx spin. im getting invalid combination of opcodes and operands errorim trying to assemble this program: [code]org 40000 ld a,0 call 8859 ld (iy+83),7 ld a,2 call 5633 call 3435 ld a,2 call 5633 ld de,d…

    ... /> ld a,0
    call 8859
    ld (iy+83),7 ... /> ld bc,12
    call 8252
    ret

    data2 ...
    rich_chandler rich_chandler June 2020 Assembler
  • Miner Willy Meets The Taxmandunno about you but im tempted!! [url="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=8101295013&category=3545"]http://cgi.ebay.co.uk/ws/eBa…

    ... &item=8101295013&category=3545"]http://cgi.ebay.co.uk ... &item=8101295013&category=3545[/url]

    These should ...
    Sard Sard April 2004 Games
  • Machine Code Sprites Example Code Using Char Based SystemBelow is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifti…

    ... /> ld a,0
    call 8859 ; set permanent border colour
    robpearmain robpearmain August 2004 Development
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ... /> ld a,0
    call 8859 ; set permanent border colour
    robpearmain robpearmain August 2004 Development
  • Web Developers Please Help - IE6 CSS BugI have constructed what seems to be a nice looking well behaved 3 column dynamic web page layout in CSS. It looks fine in IE7 and FireFox (latest) H…

    I have constructed what seems to be a nice looking well behaved 3 column dynamic web page layout in CSS. It looks fine in IE7 and FireFox (latest)

    However in IE6 it has this quirk where it creates an extra Div and puts the last two characters ...
    Scottie_uk Scottie_uk June 2008 Chit chat
  • Html / Css HelpGuys I have been busting my gut over this problem all evening maybe you can help me out. If have the following code that presents me with a well lai…

    Guys I have been busting my gut over this problem all evening maybe you can help me out.

    If have the following code that presents me with a well laid out form in both FF and IE.

    However, when I add a doctype descriptor into the ...
    Scottie_uk Scottie_uk January 2009 Chit chat
  • What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…

    ... string to print
    call 8252 ; print our string
    jp ...
    xyzzy xyzzy December 2009 Development
  • z88dk sticky?I've just tried to PM Alcoholics Anonymous and couldn't because "Alcoholics Anonymous has exceeded their stored private messages quota and cannot acc…

    ... /> ld a,1
    call 8859
    #endasm
    // Calls our ...
    Shaun.Bebbington Shaun.Bebbington January 2012 Development
  • What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…

    ... accumulator with zero.
    call 8859 ; set permanent border colours.
    Saboteur Saboteur May 2012 Development
  • Hep needed with a bit of code...I've written a bit of code to make a character move across the screen, but the counter stops at 29 when the 3 lines to delete the characters trail ar…

    ... /> ld de, 63290
    call 8252
    ret
    prb: ld ...
    daveysludge daveysludge August 2012 Development
  • PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…

    ... text to print)
    call 8252

    PS. I'd ...
    daveysludge daveysludge August 2012 Development
  • Anyone know where this is going wrong?I've written a simple routine to make a block drop from the top of the screen, but for some reason it wont 'cover its trail' so to speak. The block i…

    ... /> LD BC, 12
    CALL 8252
    RET
    print2: LD ... /> LD BC, 12
    CALL 8252
    RET
    dat: defb ...
    daveysludge daveysludge October 2012 Development
  • Covering my tracks using OVERI've got myself in a bit of a mess again I'm afraid, the routine I have written is for 4 characters to move across the screen 2 spaces at a time in I…

    ... /> ld bc,15
    call 8252
    ret
    dat: defb ...
    daveysludge daveysludge October 2012 Development
  • Help needed...I am at my wits end with this pigs ear of a routine, can anyone simplify it and make it work as it should? Basically it should make the characters '…

    ... ld bc,13
    call 8252
    ret
    app2: ... ld bc,15
    call 8252
    ret
    app3: ... ld bc,15
    call 8252
    ret
    app4: ... ld bc,15
    call 8252
    ret
    app5: ... ld bc,15
    call 8252
    ret
    app6: ...
    daveysludge daveysludge October 2012 Development
  • Infoseek infoseek_select_xml.cgi script does not workinfoseek_select_xml.cgi script stopped working: [url]http://www.worldofspectrum.org/api/infoseek_select_xml.cgi?id=0000048[/url] returns: <?xml ve…

    infoseek_select_xml.cgi script stopped working:

    [url]http://www.worldofspectrum.org/api/infoseek_select_xml.cgi?id=0000048[/url]

    returns:
    Artem Artem February 2013 Infoseek database
  • MC LPRINT 23681Having problems with this routine to print large on the screen using LPRINT, it works ok in BASIC, but cant seem to get it to loop for some reason in…

    ... /> ld bc,16
    call 8252 ;print
    ret
    dat ...
    daveysludge daveysludge September 2013 Development
  • Troublesome routine, help needed!Having problems with this routine, it basically fires a rocket up the screen, but refuses to detect collisions. I'm using attribute blocks for detect…

    ... /> ld bc,33
    call 8252
    ret
    av1 defb ...
    daveysludge daveysludge November 2013 Development
  • Latin-1 font for FZXI'm currently creating some [URL="http://en.wikipedia.org/wiki/Latin-1"]Latin-1[/URL] (ISO 8859-1) characters to be added into [URL="http://www.world…

    ... -1"]Latin-1[/URL] (ISO 8859-1) characters to be added ... /wiki/ISO/IEC_8859-15"]ISO 8859-15[/URL].
    TK90XFan TK90XFan April 2014 Development
  • Help with Assembly - DEFB, etc.Dear all, I'm going through Jnathan Cauldwell's tutorial and find myself scratching my head at part I can't find a decent explanation of anywhere! E…

    ... string to print
    call 8252 ; print our string
    ret ...
    Tobo Tobo September 2014 Development
  • LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…

    ... accumulator with zero.
    call 8859 ; set permanent border colours.
    daveysludge daveysludge October 2014 Development
  • How to Write ZX Spectrum Games - Jonathan CauldwellHello, I'm trying to improve my very basic level of assembler by reading the Jonathan Cauldwell guide. I'm fine with the basics LD, CP, and JP,…

    ... bc,eostr-string
    call 8252
    jp loop

    jonesypeter jonesypeter October 2015 Development
  • Text scroller and custom fontYesterday I was testing this text scroll routine taken from Jonathan Cauldwell's Intro Maker (labels have been inserted to allow partial code relocab…

    ... /> LD BC,00001
    CALL 8252 ; PR_STRING
    L_35381: CALL 00654 ...
    Alessandro Grussu Alessandro Grussu January 2016 Development
  • Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …

    ... 5633 ; open channel
    call 8252 ; print our string
    ret ...
    Scorpion_Realities Scorpion_Realities October 2017 Development
  • [Asm] Is this nested loop faster than LDIR or a bunch of unrolled LDI's?Hi all. I'm learning Z80 asm on Speccy 48K, and to start with I decided to write my own "CLS" routine (without relying on ROM calls or LDIR) as a lea…

    ... border color. Alternative: call $229B/8859 (Spectrum ROM function to change ...
    ST1 ST1 November 2018 Development
<12345>

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