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<1234567…34>
  • out (254) - Bright Border[code] ld a,%00000111 out (254),a [/code] The above changes the border to white. Is there a way to set the border to Bright white? Cheers

    [code]
    ld a,%00000111
    out (254),a
    [/code]

    The above changes the border to white.

    Is there a way to set the border to Bright white?

    Cheers
    robpearmain robpearmain February 2007 Development
  • OUT to file, IN from fileOUT - sentences won't do much on emulators since they mostly communicate with external devices. If there was an emulator that would write the (last) …

    ... would write the (last) OUT-ed value to a file ... standard IO-device that uses OUT 31 to light up some ... could write to file 31.OUT the value of what ... was OUT-ed and in another ... building the hardware.

    OUT 254 (from tape) might be handled ...
    Dr BEEP Dr BEEP August 2002 Emulators
  • Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…

    I have written some asm code which allows me ... port row
    in a,(254) ; check that row
    out (254),a
    ld a ... get row
    in a,(254) ; check for keys on that ... /> d_loop: dec a
    out (254),a
    dec bc
    polomint polomint September 2011 Development
  • A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…

    ... [/URL] by Arjun. Note: maybe out of date.)

    [B ... Variable to data Declared in ASM at End of File
    Timmy Timmy January 2012 Development
  • Best way of getting source/binaries onto Spectrum/Sam?What is the best way of getting source and binaries from a PC onto a Spectrum or a Sam Coupe? It is quite tiresome typing it in each time and savin…

    ... a,2
    loop:
    out (254),a
    xor 7
    Write that to test.asm, and assemble it to test ... using: [i]pyz80.py test.asm[/i]

    The image ...
    obo obo February 2007 Development
  • New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…

    ... at the time. It turned out to be inefficient so I ... a,0
    db 211,254 ; out (254),a

    reg_r db ... />
    Regards

    [b]ASM[/b]
    ASM ASM November 2010 Announcements
  • New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…

    ... byte as shown in definekeys.asm
    ;
    get_kempston:
    ...
    [/CODE]

    definekeys.asm

    [CODE]
    ; Redefine ... sysvar to black
    out (254),a
    ld a ... /> d_loop: dec a
    out (254),a
    dec bc
    polomint polomint October 2011 Development
  • Machine code crunching soundI'm looking for a re-locatable subrountine that makes a crunching sound, no border effects(border is black). Anyone got anything suitable?

    ... , if you're familiar with asm: I went into the code ... 248 in front of each out (254),a instruction for black border ...
    R-Tape R-Tape November 2011 Development
  • A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…

    ... black.
    #asm
    di
    xor a
    out (254),a
    na_th_an na_th_an January 2012 Development
  • A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…

    ... [/URL] by Arjun. Note: maybe out of date.)

    [B ... Variable to data Declared in ASM at End of File
    AndyOaks AndyOaks March 2012 Development
  • Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …

    ... -sense.com/chris/zx/PixelLFSR.asm]asm[/url], [url=http://www.real ...

    #ifdef BORDEREFFECT
    OUT (254), A ; Border/Sound effect
    BloodBaz BloodBaz March 2012 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…

    ... following soon. It turns out Penetrator compresses extremely well ... /> ;; turn border black
    out (254),a

    ;; set ... /> .dzx7:
    include "dzx7_turbo.asm"
    .block2:
    incbin " ...
    stephenw32768 stephenw32768 September 2013 Development
  • SAMPLE-TRACKER vast INSTRUCTION with screensHi, I wrote it mainly for CrashNicker and other 1-bit / Beeper users, but I suppose it could be also useful for every lo-fi musician (YM/AY chip, Co…

    ... /> ld a, 8
    out (c), a
    ld a ...
    or 128
    out (253), a
    [/code]< ... /> ld a, 8
    out (c), a
    ld a ... /> nop
    rlca
    out (254), a
    [/code]

    ASM coder's point of view ...
    Timmy Timmy January 2014 Sinclair Miscellaneous
  • Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…

    ... be able to do an OUT 254 on each row so I ... ://joefish.co.uk/speccy/Sprite09.asm[/url]
    joefish joefish March 2014 Development
  • [Asm] Is this nested loop faster than LDIR or a bunch of unrolled LDI's?Hi all. I'm learning Z80 asm on Speccy 48K, and to start with I decided to write my own "CLS" routine (without relying on ROM calls or LDIR) as a lea…

    ...

    xor a
    out (254),a

    ld (stack ...
    ld a,7
    out (254),a
    jp start
    [/code]

    The OUT (254),A instructions are there just ... you can paste in Z80 asm code and it tells you ...
    Ast_A_Moore Ast_A_Moore November 2018 Development
  • Well I'm excited, but I guess you might not beHehe this is as far as I got today, a silly little border program: [PHP] ORG 32768 PROGGY: LD C,255 ; We loo…

    ... at pen 15
    BORDERDOWN: OUT (254),A ; Put pen colour to ... not zero, loop.
    BORDERUP: OUT (254),A; ; Put pen colour to ... I missed a few lines out while I was trying to ...
    DonkeyPong DonkeyPong February 2007 Development
  • MIC - socketQuestion : is the mic-socket buffered? Or: When I make an OUT to port 254 is the signal still there after the command or only during the OUT? w…

    ... /> When I make an OUT to port 254 is the signal still ... command or only during the OUT?

    what i mean ... /> Must I reset the OUT 254,1 with a OUT 254,0?

    Dr BEEP Dr BEEP March 2007 Hardware
  • 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…

    ... deal, I can do the out 254,0 myself), sp_AddMemory, sp_CreateSpr, sp_AddColSpr ...
    na_th_an na_th_an December 2007 Development
<1234567…34>

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