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<1…14151617181920…34>
  • Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve

    ... the BASIC program area
    ld hl, (E_LINE) ; E_LINE - ... of loaded header
    ld a, (ix+$00) ; into A and ... Get next character address
    ld a,(hl) ; Get char code ... /> ; Load the BASIC block:
    ld ix, (PROG) ; IX = PROG - ...
    stefrobb stefrobb November 2010 Sinclair Basic
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... br />
    z80_stub db 78 ; ld c,(hl)
    db 35 ... br />
    db 123 ; ld a,e
    db 189 ... />
    db 122 ; ld a,d
    db 188 ... br />
    z80_stack db 113 ; ld (hl),c
    db 35 ... br />
    mov [reg_stack+00],dx ; AF'
    mov [ ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • LCD interfacingHas anybody interfaced [url=http://mdfs.net/Info/Comp/LCD]an LCD[/url] to a Spectrum? I'm toying with putting together an interface, a small 32x8 dis…

    ... /> CALL INSTR ; output instruction
    LD B,#5 ; 5 mS delay ... CALL INSTR ; output instruction
    LD B,#1 ; 1 mS delay ... to display
    LD A,#80h ; address set to 00
    CALL ... ; address out to display
    LD B,#MSGEND-MESSAGE ; mesage length ...
    roko roko November 2010 Hardware
  • Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …

    ... 0000 0000 0 00 SZ-H-VNC
    0001 LD HL,$FFFF ... 0000 0000 0000 0000 4 00 SZ-H-VNC
    0004 ... 0000 0000 0000 0000 14 00 SZ-H-VNC[/CODE]
    Jimmy Jimmy January 2011 Emulators
  • +2A/+3 compatibility fixes thread!It might be a good idea to keep these fairly common +2A/+3 compatibility fixes (and requests) in a single thread for quick reference ;) Let's start …

    ... br /> org $5b0b
    ;
    ld a, $14 ; 5b0b 3e 14 ... ; 5b21 d9 $04ts
    ld iy, $5c3a ; 5b22 fd 21 ... jp $6300 ; 5b29 c3 00 63 $0ats[/CODE]
    < ... ; f3a8 d9 $04ts
    ld iy, $5c3a ; f3a9 fd 21 ... jp $6300 ; f3b0 c3 00 63 $0ats[/CODE]
    ...
    jp jp January 2011 Games
  • Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…

    ... 00000001
    14 78-7F 00 01111xxx 00000000
    15 80 ... 11111111
    16 88-8F FE 10001xxx 11111110
    ...
    27 ...
    TVzombie TVzombie February 2011 Sinclair Basic
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... test are:
    [code]LD A,I/R : FBF7 failed ... expected 1156
    DD CB (00-FF) ROM : A4B8 failed, ... expected D9EB
    DD CB (00-FF) RAM : C805 failed, ... expected 90C0
    FD CB (00-FF) ROM : A5B8 failed, ... expected D9EB
    FD CB (00-FF) RAM : C805 failed, ...
    gasman gasman February 2011 Hardware
  • SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…

    ... ; set b to hold $00
    ld c, a ; set the ... ;
    ld (coords_y), a ;
    ld a, 0x00 ;
    ld (atflg), a ... ;
    ld (s_posn), a ;
    ld (df_cc), hl ;
    ld b, 0x08 ... ;
    ld (chrad), hl ;
    ld l, a ;
    ld a, (s_posn ...
    chev chev April 2011 Sinclair Basic
  • Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…

    ... - start searching b-space,c=$FE
    _REDEF_L2:
    in ... ,(c) ; 12t - b=$7F,c=$FE
    and %00011111 ; 7t - ...
    ; ***************************************
    _REDEF_smc0:
    ld a,0 ; 7t - change this ... - next mem
    in a,($FE) ; 11t - read in the ...
    TomD TomD April 2011 Development
  • Gunrunner game failureHello! In this game, when I'm at level 6, a fault occurs. It is the frozen image.:???: Here is the file: [url]http://www.megaupload.com/?d=WHQHDTD…

    ... 02
    62c2: defb $4d, $00, $cf, $66
    62c6: ... 74
    62ca: defb $89, $00, $cf, $bb
    62ce: ... 02
    62c2: defb $4d, $00, $a6, $66
    62c6: ... 73
    62ca: defb $a5, $00, $cf, $bb
    62ce: ... ]
    5b00: ld hl, $faff
    5b03: ld de, $ffff
    Bandit Bandit April 2011 Games
  • Best way to organise a multi screen game?Hi All, Does anybody know ay good ways to organise large multi screen game? Or any links to useful texts on the matter? In my previous single scr…

    ... br /> ;A...room num
    ;00...EF regular tiles
    ;F0 ... )
    ex de, hl
    ld de, room_buffer

    ... unpack_room2
    ld a, (de)
    inc de ... /> jr nc, unpack_room1

    ld (hl), a
    inc hl ...
    Fikee Fikee May 2011 Development
  • Your Views on... GhostbustersI dusted off the Master System version of this and inspired me to try out the Speccy version. It's a good game with it's strong and weak points. I …

    ... br /> LD HL,$E000
    LD DE,$4000
    LD A,$D5 ... $0000
    MODIFY:
    LD HL,ADDRS
    MODIFY2:
    LD A,C
    CP $00
    JR ... Z,DONE
    LD A,$90
    LD ( ... /> DONE:
    LD HL,ADDRS
    LD B,$20
    ...
    Jimmy Jimmy May 2011 Games
  • Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…

    ... 0000h: 00 19 00 05 5D 19 00 0F 27 00 0A 09 00 EA ... 72 61 6D 0D 00 14 02 00 E2 0D 23 28 ... 02 00 ogram.....?.#(..
    0020h: F7 0D ... br />
    [CODE]File type: 00
    Length of data: 0019 ... co.uk/if1_2.htm#L08DC"]LD-HEADER[/URL]
    jp jp May 2011 Development
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    Here's another mod for na_th_an's program which uses a bit of machine code to do the line wrapping calculations. Just a first draft; it could probably be tightened up a bit.

    [code]

    10 CLEAR 62999: GO TO 1000
    ...
    ...
    Battle Bunny Battle Bunny May 2011 Sinclair Basic
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... /> ld hl, (crad1)
    ld (hl), a
    ld a, (coords_x)
    ld b ... , $00, $00, $00, $0F, $00, $00, $00, $00, $00, $00, $00, $20, $20, $40, $07
    defb $00, $00, $00, $00, $F0, $00, $00, $00, $00…
    chev chev May 2011 Sinclair Basic
  • 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…

    ... ]
    9e7e: ld a, $80
    9e80: ld ($9a37), a

    9e83: ld a, ($bbb8) ;
    9e86 ... , $04 ;
    9e88: ld ($bbb8), a ;increase rate of ... /> [/b]
    9e8b: ld a, ($a212)
    9e8e: ... 9e90: adc a, $00
    9e92: ld ($a212), a
    ...
    Bandit Bandit May 2011 Infoseek database
  • AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…

    ... /> and 167 ; #00 (nop) or #a7 (and a)
    ld (l3), a ... /> ld a, (ampl)
    ld (ayregs + ar_ampla), a
    ld ix, chanb
    ld ... /> ld a, (ampl)
    ld (ayregs + ar_amplb), a
    ld ix, chanc
    ld ...
    chev chev May 2011 Hardware
  • AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…

    ... ; Zon-X / TC2068
    ; ld b, e ; 128
    outi ...
    ld c, d ; Zon-X / ... TC2068
    ; ld b, d ; 128
    inc ... Zon-X / TC2068
    ; ld b, e ; 128
    out ... br />
    tcold_0:
    defb #00 + 1, #04 + 1, #08 ...
    chev chev May 2011 Hardware
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... a
    ld b,16 ;A[7..0] = 00-01h R= ... 6
    BucExt ld hl,0 ; ... ei
    ld bc,1
    ld d,0
    ld hl,65536 ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... resetting ATFLAG from $FF to $00, set it to $01, and ... change:

    LD A,(ATFLAG) : AND A : JR ... NZ,GETXP
    to:
    LD A,(ATFLAG) : CP 2 : JR ...
    Battle Bunny Battle Bunny May 2011 Sinclair Basic
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... ; set b to hold $00
    ld c, a ; set the ... + 2 ;
    ld (s_posn), a ;
    ld (df_cc), hl ;
    ld b, 8 ... /> ld (chrad), hl ;
    ld l, a ;
    ld a, (s_posn) ;
    ld bc ... a ;
    ld l, e ;
    ld a, (attr_p) ;
    ld (hl), a ...
    chev chev May 2011 Sinclair Basic
  • Back to BASIC[U][B]Archaeology guide to programs compiled used MCODERII.d[/B][/U] After various people have been talking about "Frank'n'stein" I decided to finis…

    ... 27891 33 0 0
    LD (59346), HL ; 27894 34 ... 210 231
    LD HL, 51415 ; 27897 33 ... 215 200
    LD A, 111 ; 27900 62 ... 111
    LD DE, 52539 ; 27902 17 ... /> [CODE]51351,W V_NUM ;00
    51353,W V_SC ;01 ...
    Jimmy Jimmy May 2011 Development
  • Last Sunset for LatticaHere's a [b]rough first draft[/b] of the [url=http://www.users.globalnet.co.uk/~jg27paw4/pourri/lattica.gif]Lattica map[/url], just to demonstrate th…

    ... HL ; F847 E1
    LD ($D1A1), HL ; F848 22 ... A ; F84E AF
    LD (FLAGAD), A ; F84F 32 ... 00 00
    PREVAD: defw $0000 ; F885 00 00
    FLAGAD: defb $00 ...
    Battle Bunny Battle Bunny June 2011 Support files
  • Help Wanted: Playtest BUGFIXED games!There's an ongoing effort at WoS to fix classic Spectrum games with serious bugs that make them impossible to complete, crash frequently, etc. More d…

    ... below, the first room (room $00 start) is set specifically so ... , $01 ;
    c193: ld hl, $c1fc ;
    c196: ld (hl), a ;set ... 't add 6 minutes (room $00 visited, rooms $01-$07 not ... /> c19a: inc hl ;
    c19b: ld (hl), a ;
    c19c: djnz ...
    Bandit Bandit June 2011 Games
  • Saving and Loading from tape in MC?I'm actually having problems with saving and loading from the ROM routines for the interpreter... I'm currently using the following codes for saving…

    ... points in SA-BYTES & LD-BYTES are shown below. If ... /> LD A, $7F ; 052F 3E 7F
    IN A, ($FE) ; 0531 DB FE ... /> LD A, $7F ; 05EF 3E 7F
    IN A, ($FE) ; 05F1 DB FE ...
    Battle Bunny Battle Bunny July 2011 Development
  • Saving and Loading from tape in MC?I'm actually having problems with saving and loading from the ROM routines for the interpreter... I'm currently using the following codes for saving…

    ... A = $00 for a header block
    or
    LD A,$FF ... Carry reset for verify
    LD DE,???? ;DE= number of ... bytes
    LD IX,???? ;IX= start address
    or
    CALL $0556 ;LD-BYTES
    [/code]
    Battle Bunny Battle Bunny July 2011 Development
<1…14151617181920…34>

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