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<1…15161718192021…34>
  • Varios +3(e)DOS questions?I'm converting tape games to disk, for being used in my +3e. I'm trying to convert them to standard BASIC loaders, so files could be copied using BAS…

    ... /> LD (HL),51h
    LD SP,HL
    LD BC,7FFDh ... (C), A
    RES 4,(IY+1) ; Reset '128 BASIC' flag ...
    John Elliott John Elliott May 2013 Development
  • Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…

    ... 0007 FD 39 67 add iy,sp
    0009 FD 4E ... 69 ld b,1 (iy)
    000F C5 70 ... 0014 FD 39 75 add iy,sp
    0016 FD 4E ... take SP+4-2 which gives iy-1 and iy-2 ...
    u6c87 u6c87 June 2013 Development
  • Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…

    ... 0007 FD 39 67 add iy,sp
    0009 FD ... 69 ld b,1 (iy)
    000F C5 ... 0014 FD 39 75 add iy,sp
    0016 FD ... 77 ld b,1 (iy)
    001C C5 ...
    Alcoholics Anonymous Alcoholics Anonymous June 2013 Development
  • More tea, vicar on disk?Hello, can somebody help me putting the 128k version of this game on disk? The 128k version is free available from Jonathans Webseite. However, the g…

    ... 4,(iy+1) ; disable paging (free printer buffer)
    ld sp,23999 ...
    FrankT FrankT June 2013 Sinclair Miscellaneous
  • A loading screen for Mr. HeliWell, I've managed, once more, to make another pic in less than two weeks with ZX Paintbrush tool from Klaus Jahn and show it for all of you. As seve…

    ... /ret)
    ;
    ld sp, hl ; repoint sp
    ;
    ld bc ... ), a
    ;
    res 4, (iy+$01) ; bit 4: 1=128K ...
    jp jp June 2013 Games
  • A loading screen for Mr. HeliWell, I've managed, once more, to make another pic in less than two weeks with ZX Paintbrush tool from Klaus Jahn and show it for all of you. As seve…

    ... /ret)
    ;
    ld sp, hl ; repoint sp
    ;
    ld bc ... ), a
    ;
    res 4, (iy+$01) ; bit 4: 1=128K ...
    Ivanzx Ivanzx June 2013 Games
  • Spike: 48k onlyDoes anyone know what's going on with Spike? [URL=http://s1142.photobucket.com/user/daveyboyhughes/media/spike_zps232a1745.gif.html][IMG]http://i114…

    ...
    5b36: ld iy, $5c3a
    5b3a: ld sp, $5fb4
    5b3d ...
    Bandit Bandit July 2013 Games
  • Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…

    ... Gun ...
    [code]
    ld iy,$5c3a ;print routine at $61f5 ... changes IY
    ld a,($5b5c) ;BANKM ... overwriting it.
    [code]
    ex af,af'
    PO_1: ld ...
    Battle Bunny Battle Bunny July 2013 Games
  • 20-column multicolour: a half-baked ideaI was writing an email reply to one Mr Jowett about multicolour routines, and in that way that explaining something to someone else makes you think "…

    ... ',BC',DE',HL',IX,IY and to set SP.

    Normally ...
    Einar Saukas Einar Saukas July 2013 Development
  • Lame claims to fameWhat's your most tenuous brush with the glittering world of celebrity? Here's a few of mine (all 100% genuine): - I was coming out of an Ed's Easy …

    ... the cousin* of Steve Ogrozovic(sp?) ex Coventry City goalie

    def chris def chris July 2013 Chit chat
  • Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…

    ... of [B][COLOR="Red"]ex af,af'[/COLOR][/B] ... /> ;
    [B][COLOR="Red"]ex af, af'[/COLOR][/B] ; a4c9 ... a2 $11ts
    dec (iy+$28) ; a4d1 fd 35 28 ... 10ts
    [B][COLOR="Red"]ex af, af'[/COLOR][/B] ; a4dd ... a2 $11ts
    dec (iy+$28) ; a4d1 fd 35 28 ...
    jp jp July 2013 Infoseek database
  • Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…

    ... instances of [B][COLOR="Red"]ex af,af'[/COLOR][/B] for ... :-

    [code]
    a4c9: ex af, af'
    Bandit Bandit July 2013 Infoseek database
  • Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…

    [QUOTE=Bandit;714176]That's right yep, because when you get a perfect:-

    [code]
    a4c9: ex af, af'
    jp jp August 2013 Infoseek database
  • Scrolling by 2 pixelsWhat is the fastest way of scrolling a Spectrum screen line by 2 pixels left or right? When thinking about it I've come to this simple solution: [C…

    ... br /> ld (23670),sp
    ld sp,16384
    ld ... a
    CHAROWPP:
    ex af,af'
    xor a ... /> rr a
    ex af,af'
    or ... br /> add hl,sp
    ld sp,hl
    ...
    Battle Bunny Battle Bunny August 2013 Development
  • Scrolling by 2 pixelsWhat is the fastest way of scrolling a Spectrum screen line by 2 pixels left or right? When thinking about it I've come to this simple solution: [C…

    ... hl
    ld (23670),sp
    ld sp,16384
    ld c ... /> xor a
    CHAROWPP:
    ex af,af'
    xor a ... /> rr b
    rra
    ex af,af'
    push bc ...
    Battle Bunny Battle Bunny August 2013 Development
  • Scrolling by 2 pixelsWhat is the fastest way of scrolling a Spectrum screen line by 2 pixels left or right? When thinking about it I've come to this simple solution: [C…

    ... /> ld (23670),sp
    ld sp,16384
    ld ...
    CHAROWPP:
    ex af,af'
    xor ...
    rra
    ex af,af'
    push ...
    rra
    ex af,af'
    or ...
    Battle Bunny Battle Bunny August 2013 Development
  • melbourne drawIt could be said I am easly pleased,:grin: Very nice peice of software. I was realy impressed by its ease of use. I think a lot of time and effort w…

    ... of memory" error otherwise as SP is very low.
    [code ... ]
    ld iy,$5c3a ;ERR_NR
    set 7 ... ,(iy+1) ;set "runtime" flag
    ...
    Battle Bunny Battle Bunny August 2013 Development
  • Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…

    ...
    FD29 = ADD IY,IY
    FD39 = ADD IY,SP
    FD84 = ADD ... ,IYL
    FD86 = ADD A,(IY+*)
    [/code]

    ... HL,0300
    310300 ; LD SP,0300
    39 ; ADD ... 0300
    39 ; ADD HL,SP
    44 ; LD B, ...
    wibble wibble September 2013 Development
  • The Pros and Cons of "alternative" assembler syntaxContinuing from [URL]http://www.worldofspectrum.org/forums/showpost.php?p=720754&postcount=72[/URL] [QUOTE=u6c87;720754]But that wouldn't change if…

    ... ] +X[of]
    CP A,(IY+of) A:Y[of] :Y ... ) [HL]+ [H]+ M+
    DEC (IY+5) Y[5]-
    LD ...
    LD (ADDR),SP [ADDR]=SP
    BIT 5,(IY+1) Y[1 ...
    introspec introspec September 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ...
    .ifdef ROM0
    ld sp, 0 ; set stack to top ... 0x0058
    error_3:
    ld (iy + _err_nr), l ; then copy to ... value of err_sp in SP
    res 3, (iy + _flags) ; set 7 ...
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... k_repeat ; including repeat
    ex de, hl ; store kstate_0 ... 7
    ld d, (iy + _flags) ; flags to ... k_end:
    set 5, (iy + _flags) ; signal new key ... so
    bit 3, (iy + _flags2) ; test for ... A
    ld c, (iy + _mode) ; get mode
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... 0x064b
    sa_name:
    ex de, hl ; switch pointers
    ex de, hl ; restore ... chan_open ; channel
    ld (iy + _scr_ct), 255 ; scroll count ... 0x0873
    ld_prog:
    ex de, hl ; destination pointer to ...
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... /> push hl ; pointers
    ex de, hl ; HL points to ... 0x2e6f
    pf_medium:
    ex de, hl ; f to HL ... org 0x2ecf
    pf_fractn:
    ex de, hl ; DE points to ... ; store next digit
    inc (iy + _mem_5) ; increment count
    ...
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... br /> syntax_z:
    bit 7, (iy + _flags) ; checking syntax?
    ... ldir ; move them
    ex de, hl ; LD HL, 50992 ... hl ; next location
    ex de, hl ; pointer to DE ... ldir ; copy it
    ex de, hl ; pointer to HL ...
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... org 0x2c2d
    d_size:
    ex de, hl ; size to DE ... multiply to get total
    ex de, hl ; result to DE ... jump with other character
    ex de, hl ; result to HL ... br /> stack_bc:
    ld iy, err_nr ; restore IY

    stack_bc_1 ...
    chev chev October 2013 Development
  • Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…

    How about just using IX for referencing SP and just SET or RES bit 7 of IXH. Then IY can be the additional register pair to allow 16 bytes at a time, this solving the leftovers issue?
    jamorski jamorski October 2013 Development
  • Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…

    ... just using IX for referencing SP and just SET or RES ... bit 7 of IXH. Then IY can be the additional register ...
    Ralf Ralf October 2013 Development
  • NEW GAME: Elixir VitaeOnly 2 weeks after Janosik I have a pleasure to announce my next creation - a logical minigame called [B]Elixir Vitae[/B]. Just like another Polish …

    ... br /> [CODE] ; 15891T
    LD SP,nn
    ; 15901T
    POP ... POP AF
    ; 15965T
    EX AF AF
    ; 15969T
    ; 16016T
    EX AF AF
    ; 16020T
    Einar Saukas Einar Saukas October 2013 Brand new software
<1…15161718192021…34>

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