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<1…15161718192021…34>
  • i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…

    ... PRINT USR xxxxx to get BC back as a result.
    cyborg cyborg January 2004 Development
  • i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…

    ... PRINT USR xxxxx to get BC back as a result.
    GOC GOC January 2004 Development
  • i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…

    If I recall correctly that should be ld bc,FFFF; ret; (without looking at an opcode list).
    cyborg cyborg February 2004 Development
  • i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…

    ... useful you have to load BC. The last byte is RET ... ,255 - which will clearly leave BC with 65535.

    If ...
    cyborg cyborg February 2004 Development
  • i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…

    ... ,NN has opcode 33 , LD BC, NN has 1, RET is ...
    Fikee Fikee February 2004 Development
  • Game Editor questionI'm currently updating my image utility - TommyGun and my old Map editor, which I haven't released on WoS yet. My question is this. Would people li…

    ... /> ld iy,SPClipStruct
    ld bc,0
    ld hl,0 ...
    Alcoholics Anonymous Alcoholics Anonymous February 2004 Development
  • i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…

    ... ; RET
    1 > LD BC,NN
    17 > LD ...
    Metalbrain Metalbrain February 2004 Development
  • i want to start writing my own gamesi want to start writing my own games but have no idea how. is there any downloadable dummys guides or some software that teaches u how. the only expe…

    ... /> 00 NOP
    010000 LD BC,NN
    0600 LD B ...
    Dr BEEP Dr BEEP February 2004 Development
  • Name that game!!Hi ive just been thinking about my old collection of tapes and i seem to remember a game where you were a caveman and you had to hit girls on the hea…

    BC Bill
    Pgyuri Pgyuri February 2004 Games
  • TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…

    ... for tyres. Do these work, BC looks particularly bad.

    Fraser Fraser February 2004 MIA/STP/SDP
  • TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…

    ... for tyres. Do these work, BC looks particularly bad.
    [/quote ...
    Andrew Barker Andrew Barker February 2004 MIA/STP/SDP
  • 42 column text, Sinclair Print Utilities, etcI'm currently developing the next of the ZXIF text adventures - "43 Minutes" and, as a side issue, I'm really interested in 42 column text for this g…

    ...
    INC DE
    DEC BC
    LD A,B
    Dr BEEP Dr BEEP March 2004 Development
  • whats your second favourite retro computerOk i'm going to assume that for most of us here the speccy is our favourite number 1 retro computer,its the best home computer in the world etc etc :…

    ...
    pop af
    pop bc
    pop de
    pop ...
    pop af
    pop bc
    pop de
    pop ...
    push de
    push bc
    push af
    exx ...
    push de
    push bc
    push af

    Alcoholics Anonymous Alcoholics Anonymous March 2004 Games
  • Imagine versus UltimateImagine (The Name of the Game) Ultimate (Play the Game) Well, twenty years after their heyday, how do these two super software houses' products com…

    ... ]Molar Maul[/I] and [I]BC Bill[/I] a lot. [I ...
    Alessandro Grussu Alessandro Grussu March 2004 Games
  • Making a mapI should learn Z80 assembly, but I don't have the time (really busy) and I feel like making a game. I've tried with Colt which gives me enough speed…

    ... />
    print:
    push bc
    ld c,a
    add hl,bc '* 5
    add hl, ...
    add hl,bc '* 11
    ld bc,prtab
    add ... br /> djnz lp
    pop bc
    call pr1
    inc ...
    Dr BEEP Dr BEEP March 2004 Development
  • Artist / Artists Required For 3 Brand-New Spectrum Game ProjectsHi all, I am currently looking for high quality sprite and background tile artists for 3 forthcoming Spectrum games I have on the go at the moment. …

    ... (Megadrive) Intro/End Sequences
    BC Racers (Mega CD) Solo Programmer ...
    dansauk dansauk March 2004 Development
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... AY
    ay_out
    ld bc,AY_CTRL
    out (c),d ...
    ld bc,AY_DATA
    out (c),e ...
    cyborg cyborg March 2004 Sinclair Miscellaneous
  • Why Hex in place of Denary?Ok - most MC books / tutorials advocate the use of hex instead of denary. But the Speccy doesn't actually have a Hex converter so you need to write …

    ... returns the contents of the BC register at the point at ... it prints the contents of BC (i.e 6) to the ... 30000, print the contents of BC) will return 117.

    monty.mole monty.mole March 2004 Development
  • T.I.M. - A New Interlace - Demo for DOWNLOADHere's something that's been in the works for quite a while ( mostly in my head ) and recently I've aquired assistance to help it come to fruition. …

    ...
    pop af
    pop bc
    pop de
    pop ... hl
    exx
    pop bc
    pop de
    pop ...
    push de
    push bc
    exx
    push hl ...
    push de
    push bc
    push af

    Alcoholics Anonymous Alcoholics Anonymous April 2004 Development
  • T.I.M. - A New Interlace - Demo for DOWNLOADHere's something that's been in the works for quite a while ( mostly in my head ) and recently I've aquired assistance to help it come to fruition. …

    ...
    pop af
    pop bc
    pop de
    pop ... hl
    exx
    pop bc
    pop de
    pop ...
    push de
    push bc
    push af
    exx ...
    push de
    push bc

    ;repeat x16
    gasman gasman April 2004 Development
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... /> [code]
    out (c), d ; bc = 0xfffd, d = 8
    exx ...
    out (c), d ; bc' = 0xbffd, d' = volume A
    gasman gasman April 2004 Sinclair Miscellaneous
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... c,a
    add ix,bc ; add sample value to total ... bit integer
    adc hl,bc ; add byte displacement
    ; to ...
    Alcoholics Anonymous Alcoholics Anonymous April 2004 Sinclair Miscellaneous
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... ,0x5678

    ld bc,sample_skip ; bc = how many 256ths of samples ... skip

    add hl,bc
    ld (sample_pos_lo+1),hl ... address
    ld bc,0
    adc hl,bc ; carry to high ... into A, then...
    ; ld bc,32765
    ; out (c),a ...
    gasman gasman April 2004 Sinclair Miscellaneous
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... br /> ; do memory paging here, bc is available
    ; sample must ... to sample
    ld a,(bc) ; 6 bit sample
    ld bc,endadder
    sbc hl,bc
    jr ... ; 100 -- output to AY
    ; bc' = $fffd
    ; de' = $0809 ...
    Alcoholics Anonymous Alcoholics Anonymous April 2004 Sinclair Miscellaneous
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... /> ; do memory paging here, bc is available
    ; sample must ... address
    ptr:
    ld bc,ptr

    ; ... adds 119 cycles
    dec bc
    jr done ; adds ... ; 110 -- output to AY
    ; bc' = $fffd
    ; de' = ...
    Alcoholics Anonymous Alcoholics Anonymous April 2004 Sinclair Miscellaneous
  • simple z80 rom for test my emulatorHi there! Does anyone here have a very simple rom(in Z80 format) for testing my emulator. I need a very simple one that implements few opcodes and po…

    ... DE,4000
    0006 LD BC,1B00
    0009 LDIR
    Philip Kendall Philip Kendall April 2004 Emulators
  • Does Screen Flipping work on a 48k Spectrum?On the other post it showed some basic code to flip the screen on a +3. Does it work on a 48k Spectrum. Can anyone show me the machine code to: Se…

    ... ,49152 'start backupscreen
    LD BC,6912 'length of screen
    Dr BEEP Dr BEEP May 2004 Development
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    ...
    ld c,e ; ld bc,257
    ldir

    gasman gasman May 2004 Development
  • 16k/48k Sound FXI am now moving on from graphiocs to trying to build up a library of sound fx to be used with a 16k/48k Spectrum. Does anyone have any example m/cod…

    ...


    ZAP1: LD BC,180
    LD HL,10 ... A,10
    ZAP4: PUSH BC
    PUSH DE
    PUSH ... /> POP DE
    POP BC
    ADD HL,BC
    ;change frequency ...
    robpearmain robpearmain May 2004 Development
<1…15161718192021…34>

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