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<1…28293031323334>
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... , 48 in c
    loop0 defb 17,32 ;clever!* first pass ...
    R-Tape R-Tape July 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... /> ld b,$18
    loop0 defb 17,32
    loop1 xor ...
    Dr BEEP Dr BEEP July 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ...

    equals

    DEFB #CB
    LD (HL),B ...
    Dr BEEP Dr BEEP July 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ...

    equals

    DEFB #CB
    LD (HL),B ...
    antoniovillena antoniovillena July 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... $7848-1

    l0 defb 62 ; ld a,33
    Dr BEEP Dr BEEP July 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... $7848-1

    l0 defb 62 ; ld a,33
    antoniovillena antoniovillena July 2012 Development
  • Pixel plots for entire Spectrum charsetDoes anybody have these, preferably relative to their 8x8 pixel grid, or know an easy way of finding out (i.e in a format similar to the data bin exa…

    ... /> DEFB %00000000
    DEFB %00111100
    DEFB %01000010
    DEFB %01000010
    DEFB %01111110
    DEFB ...
    FrankT FrankT 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…

    ... ret

    buffer1:
    defb 0, 1, 2, 3, 4 ...

    buffer2:
    defb 20, 21, 22, 23, 24 ... , 17, 18, 19
    defb 20, 21, 22, 23, 24 ... , 17, 18, 19
    defb 20, 21, 22, 23, 24 ... , 17, 18, 19
    defb 20, 21, 22, 23, 24 ...
    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…

    ... ret

    buffer1:
    defb 0, 1, 2, 3, 4 ...

    buffer2:
    defb 20, 21, 22, 23, 24 ... , 17, 18, 19
    defb 20, 21, 22, 23, 24 ... , 17, 18, 19
    defb 20, 21, 22, 23, 24 ... , 17, 18, 19
    defb 20, 21, 22, 23, 24 ...
    na_th_an na_th_an July 2012 Development
  • Work out attribute location in MCHow do I go about writing a MC routine which calculates the attribute address from a set of PRINT co-ordinates. I know you in basic you multiply the…

    ... /> org 60000
    defb 15 ;vert
    defb 15 ;horiz
    ld ...
    daveysludge daveysludge August 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…

    ... /> defb 21
    defb 1
    defb 19
    defb 1
    defb 16
    defb ... 2
    defb 22
    defb ... 14
    defb 29
    defb ...
    daveysludge daveysludge August 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…

    ... ]
    org 63300
    string: defb 21,1,19,1,16 ... ,2
    atrow: defb 22,14
    col: defb 31
    charsp ... : defb 35,8,19,0 ...
    Battle Bunny Battle Bunny 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…

    ... /> ret

    ;
    score defw 99 ;max allowable number here ...
    R-Tape R-Tape 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…

    ... /> jr nz,fhigh
    nohigh defb 33 ; hide LDIR in LD ...
    Dr BEEP Dr BEEP 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…

    ... /> jr nz,fhigh
    nohigh defb 33 ; hide LDIR in LD ...
    BloodBaz BloodBaz August 2012 Development
  • WibbleBibble's Basic threadHi in an attempt to keep my questions from spamming the forum. I think its better to put them all in one place. Thanks everyone so far, I feel I am …

    ...
    ret

    colours:defb 7,5,5,5,5 ...
    Battle Bunny Battle Bunny September 2012 Sinclair Basic
  • How much memory on sprites, maps etc.I've been tinkering with shifting & pre-shifting sprites recently, but as I haven't had that much experience with Z80 assembly I sometimes find it ha…

    ... to forget about a little defs 6144, which in machine code ...
    R-Tape R-Tape September 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…

    ... /> defb 8
    defb 16
    defb 8
    defb 17
    defb 8
    defb ... 21
    defb ...
    Dr BEEP Dr BEEP October 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…

    ... /> defb 16,8
    defb 17,8
    defb 21,1
    defb 22 ...
    cor1: defb 0 ...
    cor2: defb 0
    defb 143 ...
    Battle Bunny Battle Bunny October 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…

    ... /> RET
    a1: defb 0
    dat: defb 19,8,16,8 ... ,1
    defb 22
    cor1: defb 0,15
    defb 143
    Battle Bunny Battle Bunny October 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…

    ... /> RET
    a1: defb 1
    dat: defb 19,8,16,8 ... ,17,8,21,1
    defb 22 ...
    defb 4
    cor1: defb 15
    defb 103[/CODE ...
    daveysludge daveysludge October 2012 Development
  • Mini scroll routineI'm looking for a routine that scrolls a small section of the screen downwards and replaces it with nothing, 2 x 2 charcter blocks to be precise, to …

    ... listing is chkbit. The character defs are put in t$(). Run ...
    Battle Bunny Battle Bunny 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 '…

    ... dc" ;32 characters
    btext defs split
    [/code]
    Battle Bunny Battle Bunny 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 '…

    ... before ttext
    [code]atext: defb 19,8,16,8,17 ...
    Battle Bunny Battle Bunny October 2012 Development
  • Licence free (possibly) Graphic/Sprite databaseJust thinking back to the lone magpie's thread [URL="http://www.worldofspectrum.org/forums/showthread.php?t=37142"][B][I]New Spectrum (Spaceship) Ma…

    ... available as sheets or ASM DEFB strings or BIN with previews ...
    LCD LCD October 2012 Development
  • What Spectrum projects (Software/Games/Utility)(Hardware)(Others) are you working on?So, basically that :) You dont have to give names or more clues if you dont want to ;) Also, if you are working on more than one, you can tell all of…

    ... ' (each 'tile' is basically a defb 254), this same top line ...
    R-Tape R-Tape October 2012 Development
  • help needed :) how to rotate a 3 x 3 array 90 degreesI just cant seem to get this sorted in my head ( or on paper ) , I've found multiple examples in C , python , etc but cant find any z80 examples any …

    ... ,#12,#13
    defb #21,#22,#23
    defb #31,#32,#33 ...
    Hikaru Hikaru October 2012 Development
  • help needed :) how to rotate a 3 x 3 array 90 degreesI just cant seem to get this sorted in my head ( or on paper ) , I've found multiple examples in C , python , etc but cant find any z80 examples any …

    ... /> array: defm "ABCDEFGHIJKLMNOPQRSTUVWXY"
    brray: defs dims*dims

    org ...
    Battle Bunny Battle Bunny October 2012 Development
  • UDG in AssemblyHello there my fellow WoS'ers I am currently having a play with z88dk and PASMO and would like to have some fun with some UDG's so is there a tutor…

    Simply make your udg in defb and set 23675 to your ... /> Ret


    Udg defb 255,129,129,129,129 ...
    Dr BEEP Dr BEEP October 2012 Development
<1…28293031323334>

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