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Search Again :: Adv Search 1000 results in 0.015s
<1…17181920212223…34>
  • 128k Page FlippingOver on adverts, AOwen wrote the following: [quote=aowen]The trick, as I understand it, is to redraw the whole screen each time at #c000, but point…

    ...
    ld hl,0C000h
    ld de,0C001h
    ld (hl),%11110000
    ld bc ...
    ld hl,0D800h
    ld de,0D801h
    ld (hl),%00000101
    ld bc ...
    robpearmain robpearmain December 2006 Development
  • tips on optimizing assemblyI wrote a small routine to rotate right a whole screen character line complete with attributes. This is my third ever assembly routine, so I guess i…

    ... />
    [CODE]ld hl,source
    ld de,dest
    ld bc,6912
    ldir

    ld hl ... ,source2
    ld de,dest2 ...
    ld bc,56
    na_th_an na_th_an December 2006 Development
  • "chunky" gfxHas anyone some experience with coding "chunky" gfx routines ? (chunky is something like this [url]http://www.pouet.net/prod.php?which=13204[/url])

    ... d ;4
    ld a, (hl) ;7
    ld (de), a ;7 lower ... , b ;4
    ld a, (hl) ;7
    ld (de), a ;7 lower ...
    Fikee Fikee January 2007 Development
  • Who knows how to program a "pathfinder"?Hi all. I like to play games like "Colour Lines" and I think, I will create a version of this game for the SAM Coupe. It looks easy - until this "dam…

    ... />
    ld de,field
    ld hl,#c000
    loop ld a,(de)
    sub ... 32
    ld (hl),a
    ld (hl),a
    next inc l
    inc de
    pop de ; drop return
    ld a,stx+sty ; test ...
    Dr BEEP Dr BEEP January 2007 Development
  • Who knows how to program a "pathfinder"?Hi all. I like to play games like "Colour Lines" and I think, I will create a version of this game for the SAM Coupe. It looks easy - until this "dam…

    ... />
    ld de,field
    ld hl,#c000
    loop ld a,(de)
    sub ... 32
    ld (hl),a
    ld (hl),a
    next inc l
    inc de
    pop de ; drop return
    ld a,stx+sty ; test ...
    Dr BEEP Dr BEEP January 2007 Development
  • NEW games for you chaps (and girls too) ;-)Okie, did some .TAP versions of NEW original games that were only released on TRDOS disk format. Some of you might have seen some (one or two are eve…

    ... br /> LD HL,4000
    LD DE,4000
    LD BC,1AFF
    LD (HL ... ),L
    LDIR
    LD ... SP,66E0
    LD HL,C9F1
    LD (5CC2),HL
    LD DE,(5CEB ... ) ;read from track $01, sector $00
    LD BC ...
    StuBruise StuBruise January 2007 Games
  • Fixing Attribute Clash via emulationI'm sorry if this has been posted already, but is there a possibility to fix attribute clash via emulation? I'm not talking about RealSpec or any of …

    ... 2.
    call open_channel
    ld de, string ; Print the "Hello" ... string.
    ld bc, 5
    call print_string ...
    frame: ld c, 90 ; Run through the ... For 5 attributes.
    nextch: ld (hl), a ; Store this ...
    Matt_B Matt_B February 2007 Emulators
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... 1000.[/QUOTE]

    #768D LD DE, Jewel_Amount_Required

    Of course ...
    Mr. Anonymous Mr. Anonymous February 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... fix >

    #76AA LD DE,#771F

    (Poke 30379 ...
    Mr. Anonymous Mr. Anonymous February 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... /> ex de,hl
    pop hl
    ld a,(de)
    ... inc hl
    inc de
    ld a,(de)
    or a
    inc de
    ld a,(de)
    or a
    ld (hl),c
    $5: ld de,30
    ... add hl,de
    djnz $2 ...
    FrankT FrankT March 2007 Development
  • 16k Spectrum.How come emulator's in 16k mode don't provide 32 ram-pack support.

    ... /> 30 REM ! ld hl,16384
    40 REM ! ld de,16384+2048
    50 REM ! ld bc,2048
    [code]
    10 REM ! ld b, 100
    20 REM ...
    BloodBaz BloodBaz March 2007 Emulators
  • Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…

    ... destination address in de
    ld hl,dst
    ld e,(hl)
    inc hl
    ld d,(hl)

    ; Move ... ;b=copyLength
    lp2 ld a,(hl)
    ld (de),a
    inc ... h
    inc de
    djnz ...
    BloodBaz BloodBaz March 2007 Sinclair Basic
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... br />
    ld de,SCREEN

    ld bc,192 ;number ... />
    ex de,hl
    ld bc,32
    ... 29 for "ld bc,0; ex de,hl; add ...
    Alcoholics Anonymous Alcoholics Anonymous April 2007 Development
  • "Lost" 48K expansionToday I dug up my Speccy after more than 10yrs of inactivity. I bought it as a 16K in 1983, than I had expanded to 48K and never had problem. Until t…

    ... /> LD HL,$0000
    LD BC,$4000
    LD DE,$0000< ... br /> EXX
    LD ... LAB_1

    LD HL,$24E1
    AND A ...
    Geoff Geoff April 2007 Hardware
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... instructions).

    [code]
    LD DE,#5800 start of attributes
    LD BC,#0300 size of attribute ... area
    LD H,TABLE>>8 ... /> LOOP:
    LD A,(DE) get attribute value
    LD L,A HL ...
    omega omega April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... instructions).

    [code]
    LD DE,#5800 start of attributes
    LD BC,#0300 size of attribute ... area
    LD H,TABLE>>8 ... /> LOOP:
    LD A,(DE) get attribute value
    LD L,A HL ...
    bobs bobs April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... ;8
    LD H,A
    EXX
    LD DE,SourceAttributeData
    EXX ...
    LD H,A
    LD BC,#0300
    LD DE,#5800
    LD IX ... ,SourceAttributeData
    LOOP:
    LD ...
    omega omega April 2007 Development
  • Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?

    ... like

    LD DE, 32
    ADD HL, DE

    which ...
    Winston Winston April 2007 Development
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... /> [code]
    ld hl,16384
    ld de,ramtop addr
    ld bc,6912 ... />
    The value loaded into DE is the destination address for ... values to reverse HL and DE so that the copy occurs ...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... /> [code]
    ld hl,16384
    ld de,ramtop addr
    ld bc,6912 ... />
    The value loaded into DE is the destination address for ... values to reverse HL and DE so that the copy occurs ...
    DEATH DEATH May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... /> [code]
    ld hl,16384
    ld de,ramtop addr
    ld bc,6912 ... />
    The value loaded into DE is the destination address for ... values to reverse HL and DE so that the copy occurs ...
    Toxitalk Toxitalk May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... :

    LD BC xxxx
    LD DE xxxx
    LD HL xxxx
    DE contains the destination address
    DE. The same routine is used ...
    DEATH DEATH May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... :

    LD BC xxxx
    LD DE xxxx
    LD HL xxxx
    DE contains the destination address
    DE. The same routine is used ...
    Toxitalk Toxitalk May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... 32768

    LD BC 6912 ; length of screen ... is 6912 bytes long
    LD DE 32768 ; somewhere convenient - ... whatever you like
    LD HL 16384 ; Start of ... area

    LD BC 6912 ; length of screen ... 6912 bytes long
    LD DE 16384 ; Start of screen ...
    DEATH DEATH May 2007 Sinclair Basic
  • Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…

    ... 16384 ;screen address
    ld de,35000 ;address of graphic loaded ... write graphic into screen
    ld a,(de) ;get byte from graphic ... store in memory
    ld (hl ...

    moveonecharacter
    ld c,8 ;reset c, number ...
    Rickard Rickard May 2007 Development
  • Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…

    ... 16384 ;screen address
    ld de,35000 ;address of graphic loaded ... write graphic into screen
    ld a,(de) ;get byte from graphic ... store in memory
    ld (hl), ...

    setstartvariables
    ld d,31 ;d=number of ...
    Dr BEEP Dr BEEP May 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…

    ... ////////////////////////////////////////////////////////////////////
    .start
    ld hl,_sbuf
    ld bc,8
    push ... /> push de
    ld de,33
    add hl,de
    pop de
    ...
    ld hl,_dbuf
    ld de,_sbuf
    ld bc,8< ...
    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…

    ... ,9
    push hl
    ld de,33
    .loop
    pop ...
    ld hl,49153
    ld de,(_dbuf)
    ld c,0
    ld b ... ,9
    .dump
    push de

    [CODE] ld de,(_dbuf)
    ld c,0
    ld b,9[/CODE ...
    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 /> ld hl,49152
    ld c,0
    ld b,9 ... ld hl,49153
    ld de,(_dbuf)
    ld c,0
    ld ... b,9
    .dump
    push de ... inc hl
    pop de
    push hl
    ex de,hl
    pop hl ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…

    ... h added though).
    ld de, 32 ;Perform jump to ... ;EXIT!

    plot ld BC, (coord) ;load the coords ... hl
    ld d, (hl)
    ex de,hl ;hl now ...
    Arjun Arjun July 2007 Development
<1…17181920212223…34>

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