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Search Again :: Adv Search 1000 results in 0.021s
<1234567…34>
  • Keyboard Issues When Setting Border ColourWelcome to the next in my series of inane 'Z80 on the Spectrum' questions! ;) Here's a minimal snippet of code for polling the keyboard until any ke…

    ... A,0
    IN A,($FE)
    CPL
    OR ... way is to change the border colour (to black in this case ... /> LD A,0
    OUT ($FE),A[/CODE]

    Both ... /> LD A,0
    OUT ($FE),A

    NOKEY: LD ... /> I can see that port $FE is being used in both ...
    RoseCotton RoseCotton December 2009 Development
  • Border colour on resetI have noticed a strange (and somewhat disquieting) glitch or feature on the ZX Spectrum. Sometimes, when the Reset button is pressed on the later m…

    ... later machines (128 onwards), the border colour will change to white before ... menu (and white border) suddenly appear, but this border colour glitch/feature is ...
    Swevicus Swevicus September 2013 Hardware
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... /> CALL TapeExit ; Restore border, check SPACE, enable INTs ... /> CALL TapeExit ; Restore border, check SPACE, enable INTs ... LD A,(BORDCR) ; Get border colour
    AND &38 ... RRCA
    OUT (&FE),A ; Set border colour
    POP AF ; ...
    Jonathan Harston Jonathan Harston July 2009 Development
  • The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…

    ... set border colour also. Border port #FE is write only and is impossible detect actual border colour ... = new value for border colour

    - Same border setting use after load ...
    velesoft velesoft October 2009 Development
  • The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…

    ... save snapshot you must set border colour also. Border port #FE is write only and ... is impossible detect actual border colour. You ... can read first attribute from videoram and use paper colour ...
    gasman gasman October 2009 Development
  • splib2 from ROMI'm trying to generate IF2 ROM games for ZX Spectrum 16K using z88dk + splib2. So far I've managed to create a new crt0 file and to generate valid RO…

    ... do your own OUT to set border colour. Or you can modify ...

    ; Set Border Colour
    ;
    ; Stores border colour in variable SPBorderClr.
    ; enter: a = border colour 0..7
    ; exit : border colour changed
    ;
    Alcoholics Anonymous Alcoholics Anonymous December 2007 Development
  • Keyboard Input$/scan problemHi, I'm finally fulfilling my promise to get a reasonable understanding of the Speccy and embarking upon attempting a few simple routines in Assembl…

    ... )
    AND 7

    ; Set border colour (0..7)
    OUT (254 ...
    BloodBaz BloodBaz January 2009 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... br /> ld (.border_colour),a ;blue border for pilot
    ;; adjust ...
    ld a,1 ; set border colour on high edge
    .low_edge ... set bit 3 to make sound
    out (0xfe),a ; switch border ...
    stephenw32768 stephenw32768 August 2013 Development
  • assembler for PcHi guys, I'm in the process of teaching myself machine code, and wondered if there is a good pc program for writing code. Or is the best thing to use…

    ... ...

    To set a permanent red border we can do this ... for red.
    call 8859 ; set border colour.

    so this is ... part of the rom's border routine?

    Sorry for ...
    Lost Lost December 2014 Development
  • How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…

    ... TIMING EQU 1:
    I set border colour to black at the beginning ... loop before halt
    I set border colour to cyan when I start ... of the loop and sets border colour to black again.

    Paradigm Shifter Paradigm Shifter June 2022 Development
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ... a,0
    call 8859 ; set permanent border colour

    call initIM2 ...
    LD I,A ; I=FE
    IM 2 ; select IM2 ...
    robpearmain robpearmain August 2004 Development
  • Vote for your favourite loading border colourSo it is time for one more important voting! :razz: What is your favourite loading [B]border[/B] design? Since I guess most of us spent many many ho…

    ... is your favourite loading [B]border[/B] design? Since I guess ... the game used some custom border colours it was even better ... [/B] (or any other single colour)

    [IMG]http://i27 ...
    Rickard Rickard August 2009 Games
  • Toastrack border changes colour with joystickI plugged my Kempston joystick interface into my 128K toastrack last night and had a blast on Beach Head. Funny thing is, the border colour changed…

    ... />
    Funny thing is, the border colour changed every time I moved ...
    szeliga szeliga December 2010 Hardware
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ... a,0
    call 8859 ; set permanent border colour

    LD HL ...
    LD I,A ; I=FE
    IM 2 ; select IM2 ...
    robpearmain robpearmain August 2004 Development
  • IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…

    ... a,0
    call 8859 ; set permanent border colour

    LD HL ... :

    LD B,GfxOffsetTable ; Set at FC00, get the offset ...
    LD I,A ; I=FE
    IM 2 ; select IM2 ...
    robpearmain robpearmain August 2004 Development
  • The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…

    ... />
    I`ve noticed border coruption with cyclone when picking ... requires writing to port $FE, which also controls border colour.

    ... in SPIN, as the border emulation is pretty much perfect ... [quote]
    How do I set/reset the write protection of ...
    Dunny Dunny July 2006 Emulators
  • SjASMPlus cross compiler of Z80 assembly languageHi! I want to present you cross-compiler of Z80 assembly language: [B]SjASMPlus[/B]. [SIZE="4"]Features:[/SIZE] [LIST] [*]Z80/R800 documented and un…

    ... border colour:[CODE]
    ifdef DEBUG
    ld a, 2
    out ($fe ... is to be able to set that define on the command ... for a value to be set if required.

    'Tis ...
    icabod icabod February 2007 Development
  • Difference in emulator screen sizes and coloursSeeing as Greencard's gone out drinking... I've done a comparison between Spectaculator and ZXSpin. ZXSpin's full screen with border is taller than S…

    ... the Spectrum actually output border colour in those extra 8 lines ... display line is. Again, set in stone. No discussion. Verifiable ... an OUT $FE during the display time, the border will change. ... overscan settings is irrelevant. The border will change.

    Dunny Dunny December 2008 Emulators
  • Creating a Spectrum game that won't load...Dear All, I have recently been using my ZX Spectrum as a reference for the production of a new body of art work and something I keep coming back to …

    ... v.0622 (with the character set in ROM) showed only an ... /> SALEAD DJNZ SALEAD
    OUT ($FE),A
    XOR %00011111 ;toggle ... DJNZ SASY2 ;wait
    OUT ($FE),A


    ... br />
    LD A,(23624) ;border colour
    AND $38
    RRCA ...
    roko roko November 2009 Sinclair Miscellaneous
  • Official CSSCGC 2010 Competition ThreadDear Wossers, As 'loser' of the 2009 competition, I am now obliged to host the 2010 competition. I have created a site which will provide a hub for …

    ... used to perform the OUT ($FE),A instruction.

    ... used to store the current BORDER colour (multiplied by 8 ) and ... routine like this now to set the border
    [code]
    ... library function to change the border colour
    zx_border(b);
    < ...
    Digital Prawn Digital Prawn February 2010 Games
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... bit when you OUT the border flashes?
    [/QUOTE]
    border colour - and that is the ... that point I update the border, once per bit. ... ($fe). (And to confirm - bit 3 is always set when ... I write to $fe - clearing ...
    GoingDigital GoingDigital September 2013 Development
  • What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…

    ... the search. So change the border colour and set the carry flag.
    OUT (+FE),A Change the border colour (RED/
    CYAN or ...
    jamorski jamorski October 2013 Development
  • Beepola v1.08 AvailableA new version of Beepoa, v1.08, is now available for download from:- [url]http://freestuff.grok.co.uk/beepola/[/url] (1.76MB zipped exe, no installe…

    ... where speaker bit is set but I don't ... must have a black border as is. Maybe the ... had support for different border colours built in already ... to add support for other border colours (Huby, The ... OUT ($FE) if, and only if, you selected a border colour other ...
    ccowley ccowley January 2014 Announcements
  • IN and OUT in hardware terms... what are 'ports'?Hi all, I understand PEEK and POKE, but have never managed to get my head around IN and OUT. The books all go on about how they read from and wri…

    ... instance, the Speccy’s border colour is controlled through an I ... ... but the border colour can only ever be [i]set[/i]. There ... values, e.g. port $fe. I/O port addresses coming ... we’ll just say $fe where really we mean $[i ... ]xx[/i]fe. When writing to the ...
    zub zub September 2015 Hardware
<1234567…34>

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