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  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... br /> push hl
    ld de,33
    .loop < ... br /> #asm

    ld hl,(23*256)
    call ... ex de,hl
    ld hl,49153
    ld bc ... ,(9*256)
    .dump
    push de ... call zx_saddrpdown
    ex de,hl
    pop ...
    wokani wokani July 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... br /> push hl
    ld de,33
    .loop
    #asm

    ld hl,20*256
    call ... ex de,hl
    ld hl,49153
    ld bc, ... 9*256
    .dump
    push de ... call zx_saddrpdown
    ex de,hl
    pop ...
    wokani wokani July 2007 Development
  • Compressors are available for Speccys ?Hi folks, although I was an wasn't strictly a speccy coder in the glory days (amstrad & amiga for the most part), I have secides to arse about with …

    ... ,50000 ;SOURCE (COMPRESSED DATA)
    LD DE,#4000 ;DESTINATION

    ... br /> INC HL
    LD C,A
    OR A ... br /> RET Z
    LD B,0
    LDIR
    LD B,A
    LD A,C
    LD C,(HL ... PUSH HL
    LD H,D
    LD L,E
    ...
    piters piters July 2007 Development
  • Splitting Images tzx maybe not perfectI've been hacking this game and its loader. Also the save routine is intact in this game. It saves a block with a pilot length of 801 pulses. Test…

    ... , $4000 ; start address
    ld de, $c000 ; length
    jp save< ... /> scf
    ld a, $c7
    ld ix, $4000
    ld de, $c000
    rra
    ld c, a
    inc de
    jr l_a1fd ... , l_a31c
    dec de
    inc ix
    ld b, $31
    FrankT FrankT August 2007 MIA/STP/SDP
  • Using a multiface to exit to BasicBack in the days I was always fascinated with the idea of getting access to BASIC listings inside a program or game. I was able to work a way around …

    ...
    30 PRINT #0;" Desculador de cabeceras PRESS A KEY":PAUSE ... GOTO 30[/code]BTW: "Desculador de cabeceras" is spanish for " ... 000
    17,17,0 LD DE, 17 ;The header is 17 ... long
    62,0 LD A,0 ;A=0 means ...
    Marcelo Marcelo August 2007 Sinclair Basic
  • Something completely different (new game tech-demo)Since finishing Stranded 2.5 (available soon from Cronosoft - plug!) I've been playing with the idea of doing an attribute-based, rather than pixel-b…

    ... />
    ld hl, 0
    ld de, 0
    ld c, %01111111
    ld b ... , (hl)
    and c
    ld (de), a
    inc e
    and c
    ld (de), a
    inc de
    inc hl
    Fikee Fikee August 2007 Games
  • Using a multiface to exit to BasicBack in the days I was always fascinated with the idea of getting access to BASIC listings inside a program or game. I was able to work a way around …

    ... the block load address: [B]LD IX,50000[/B] (221,33 ... whatever address you need [B]LD IX, kkkkk[/B] (221,33 ... need: [B]LD DE,17[/B] (17,17,0) [B]LD DE,nnnnn[/B ... load header/block flag: [B]LD A,0[/B] (62,0 ... ) with [B]LD A,255[/B] (62,0 ...
    Marcelo Marcelo August 2007 Sinclair Basic
  • A few questions about machine codeOh no... another noob. I'm giving my first steps in assembler (finally, after 20 years stuck in BASIC). I read a SU article explaining that if I wan…

    ... ]scf
    ld a,255
    ld ix,16384
    ld de,6912
    call 1366
    ld a ... ,255
    ld ix,24576
    ld de,22564
    ld de,23296
    ld hl,24785
    ld bc,40832
    DEATH DEATH August 2007 Sinclair Miscellaneous
  • A few questions about machine codeOh no... another noob. I'm giving my first steps in assembler (finally, after 20 years stuck in BASIC). I read a SU article explaining that if I wan…

    ... ]scf
    ld a,255
    ld ix,16384
    ld de,6912
    call 1366
    ld a ... ,255
    ld ix,24576
    ld de,22564
    ld de,23296
    ld hl,24785
    ld bc,40832
    rich_chandler rich_chandler August 2007 Sinclair Miscellaneous
  • I forgot which system variable I need...... to prevent the message 'start tape, then press any key'. I saw the system variables list but it's not helping. I know I used one poke to bypass t…

    ... .

    LD IX, 16384
    LD DE, 6912
    LD A, 255
    DEATH DEATH August 2007 Sinclair Basic
  • I forgot which system variable I need...... to prevent the message 'start tape, then press any key'. I saw the system variables list but it's not helping. I know I used one poke to bypass t…

    ... .

    LD IX, 16384
    LD DE, 6912
    LD A, 255
    [code]
    LD IX, 16384
    LD DE, 6912
    LD A, 255
    rich_chandler rich_chandler August 2007 Sinclair Basic
  • A few questions about machine codeOh no... another noob. I'm giving my first steps in assembler (finally, after 20 years stuck in BASIC). I read a SU article explaining that if I wan…

    ... ]scf
    ld a,255
    ld ix,16384
    ld de,6912
    call 1366
    scf
    ld ... a,255
    ld ... ix,24576
    ld de,22564
    zxbruno zxbruno August 2007 Sinclair Miscellaneous
  • A few questions about machine codeOh no... another noob. I'm giving my first steps in assembler (finally, after 20 years stuck in BASIC). I read a SU article explaining that if I wan…

    ... ]scf
    ld a,255
    ld ix,16384
    ld de,6912
    call 1366
    scf
    ld ... a,255
    ld ... ix,24576
    ld de,22564
    Dr BEEP Dr BEEP August 2007 Sinclair Miscellaneous
  • SCR to SCREENS$Hello, is there a way to convert a .scr file back to a screen$ to load it into an emulator? Thanks!

    ...

    LD HL,16384
    LD DE,32768
    LD BC,6912
    DE and then return to BASIC ...
    DEATH DEATH August 2007 Sinclair Miscellaneous
  • 48K sound effectsAnybody knows where could I find some small M/C routines to play tiny beeper sounds I could use in the 48K version of a game? I don't want the 48K pl…

    ...
    ld de,30
    ld hl,30
    ld bc,$ffff< ... br /> ld de,60
    ld hl,60
    ld bc,$ffff ... di
    PlaySFXLoop1
    ld a,(CurrLevelPaperColour) ;flip the speaker ... br />
    dec de
    ld a,d
    or ...
    Digital Prawn Digital Prawn August 2007 Development
  • Bubble Bobble EditI thought I might have a go at editing Bubble Bobble myself after reading this... [url]http://www.worldofspectrum.org/forums/showthread.php?t=15452[…

    ... ]
    starting #82d6
    ld a,0 ;level 0 at ... ld h,0
    ld de,858c
    add hl,de
    ld a ... ,(hl) ;grab our colours
    ld ... ;set bright attribute
    ld (830a),a ;store it+ ...
    Mr. Anonymous Mr. Anonymous September 2007 Development
  • Compressors are available for Speccys ?Hi folks, although I was an wasn't strictly a speccy coder in the glory days (amstrad & amiga for the most part), I have secides to arse about with …

    ... a 0
    ld (de),a
    inc de
    jr aploop< ... br /> ex de,hl
    jr aploop
    apbranch3: ld c,(hl ... br /> push de
    ex de,hl

    ld hl,1279
    de = dest
    ldir
    pop hl
    ap_finishup: ld a ...
    Metalbrain Metalbrain October 2007 Development
  • Compressors are available for Speccys ?Hi folks, although I was an wasn't strictly a speccy coder in the glory days (amstrad & amiga for the most part), I have secides to arse about with …

    ...
    jr nz,apbranch4
    ld (de),a ;write a 0
    push de
    ex de,hl
    ld hl,1279
    jr nz,apbranch4
    ld (de),a ;write a 0
    push de
    ex de,hl
    ld hl,1279
    Metalbrain Metalbrain October 2007 Development
  • Interface rom - Need help to dump itHi, I have temporarily an interface that is similar to a multiface. It has an NMI button and displays a menu where states can be saved and pokes ent…

    ... here:
    LD BC,8192
    LD DE,32768
    LD HL,00000
    DE (32768 ), the enables interrupts and ...
    DEATH DEATH October 2007 Hardware
  • Vector drawing routines.Anybody could point me to some sort of vector drawing package of routines, callable from BASIC? With "vector drawing" I mean to draw 2D pictures with…

    ... />
    .DOPFILL

    ld bc,(PARAM0) ; for proper register ... code for SPPFill
    ld de,(PARAM1)
    ld hl,(PARAM2)
    ... />
    .DOLINE

    ld hl,(PARAM0) ; for proper register ... code of liner
    ld de,(PARAM1)
    jp liner< ...
    Alcoholics Anonymous Alcoholics Anonymous October 2007 Development
  • New assember ideaAs i work with Eclipse IDE in my job i become more and more lazy. This leads me to idea that it is time to left Notepad+Tasm combo behind and move on…

    ... = address of block

    ld de,_heap
    jp HeapSbrk_callee + ASMDISP_HEAPSBRK_CALLEE ... = address of block

    ld de,_heap
    jp HeapSbrk_callee + ASMDISP_HEAPSBRK_CALLEE ...
    Alcoholics Anonymous Alcoholics Anonymous November 2007 Development
  • Compressors are available for Speccys ?Hi folks, although I was an wasn't strictly a speccy coder in the glory days (amstrad & amiga for the most part), I have secides to arse about with …

    ... /> ;hl = source
    ;de = dest

    depack: ld ixl,128
    ld a,b
    ld (de),a ;write a 0 ...
    inc de
    jp ... =offs
    push de
    ex de,hl
    ld a,4
    Metalbrain Metalbrain November 2007 Development
  • The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…

    ... out (W5100_MSB), a
    ld a, source_lsb
    out ( ... W5100_LSB), a
    ld hl, destination

    ... the buffer
    ld c, W5100_data
    ld b, length
    ld (de), a
    inc hl
    Winston Winston November 2007 Hardware
  • Compressors are available for Speccys ?Hi folks, although I was an wasn't strictly a speccy coder in the glory days (amstrad & amiga for the most part), I have secides to arse about with …

    ... nz,apbranch4
    ld a,b
    ld (de),a ;write a 0 ... ,bc
    ex de,hl
    ld (de),a
    inc de
    jp ... nz,apbranch4
    ld a,b
    apwritebyte: ld (de),a ;write a ...
    Metalbrain Metalbrain December 2007 Development
  • New tape releases - 128K only?As Jon's new Egg-Head game is 128K only, and splATTR has also evolved into a 128K only game - both due to memory constraints - I was wondering if the…

    ... LD A,$39
    LD I,A
    LD HL,$ADB6
    LD DE ... ,$FFF4
    LD BC ... the second instruction to LD A,$3B then it ... DEBIDO A ERROR DE CARGA (DESPLAZAMIENTO DE DIRECC. 48896-65535 ... NO, CAMBIA EL VALOR DE I PONIENDOLO EN LA ...
    StuBruise StuBruise December 2007 Games
  • Minigame Compo 2007Hi there, also this year, there'll be a minigame competition, open to all 8-bit computers and consoles. It consists on writing games whose size (…

    ... :
    [CODE]
    ld (de), a
    inc de
    jr nextbyte
    Fikee Fikee December 2007 Development
  • Minigame Compo 2007Hi there, also this year, there'll be a minigame competition, open to all 8-bit computers and consoles. It consists on writing games whose size (…

    So it looks it is possible to put LD (DE), A \ INC DE combo into line number (as 1213h is 4627d) without violating rules.
    Am i correct ?
    Fikee Fikee January 2008 Development
  • Minigame Compo 2007Hi there, also this year, there'll be a minigame competition, open to all 8-bit computers and consoles. It consists on writing games whose size (…

    ... is possible to put LD (DE), A \ INC DE combo into line number ...
    Paolo Ferraris Paolo Ferraris January 2008 Development
  • Minigame Compo 2007Hi there, also this year, there'll be a minigame competition, open to all 8-bit computers and consoles. It consists on writing games whose size (…

    ...
    exx
    ld de, destination
    next
    ld b, 9
    ld (de), a
    inc de
    jr next < ... setde out (254), a
    ld (de),a ; first time no-effect ...
    inc de
    next
    ld b, 9
    Dr BEEP Dr BEEP January 2008 Development
  • Minigame Compo 2007Hi there, also this year, there'll be a minigame competition, open to all 8-bit computers and consoles. It consists on writing games whose size (…

    ... setde out (254), a
    ld (de),a ; first time no-effect ...
    inc de
    next
    ld b, 9 < ... , I'd move the ld (de),a at the end of ... before jr nc, setde). If ld (de),a is 'incorrectly' written ( ... ) then the content of (de) is either 0 (when ...
    Paolo Ferraris Paolo Ferraris January 2008 Development
<1…18192021222324…34>

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