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<1234567…34>
  • [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…

    ... ) if no ROM calls or BASIC required, saving 466 bytes. $ ... ; Select the byte used to fill screen. All zeroes means blank it ... a ; Put the fill byte on to the screen address.
    ... infinity ; Avoid going back to basic. Screen is cleared now, continue writing ...
    ST1 ST1 November 2018 Development
  • MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…

    ... attributes on a per line basic

    Whether this ... upper border is being drawn, fill screen 0 with red attributes. ( ... upper border is being drawn, fill screen 0 with blue attributes. Then ... switch screens every scanline, with screen 1 first.

    ...
    gasman gasman February 2009 Development
  • 64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…

    ... the tremble is the BASIC ISR getting it he ... di

    ;; First we fill screen 0 with the pattern and ... ldir

    ;; First we fill screen 1 with the pattern and ... push bc

    ;; Show screen 0 for exactly 224x4 = 896 ...
    na_th_an na_th_an July 2012 Development
  • 64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…

    ... into a Boriel's ZX Basic program...

    [ ...

    ;; First we fill screen 0 with the pattern and ... ldir

    ;; First we fill screen 1 with the pattern and ... 4 = 912

    ;; Show screen 1 for exactly 228x4 = 912 ...
    na_th_an na_th_an July 2012 Development
  • Spectrum Utility Routines Compendium (pending)I couldn't make up my mind into which section to put this, so it's ended up here for some tenuous reason. I haven't forgotten about this. I've been …

    ... ** A painter (enclose & fill) routine
    ** Check if ... /> ** Full 16*16-digit BASIC multiplication
    ** Print a ... pixels
    ** Random point screen fill
    ** Spectrum 48k ROM ... given length into a BASIC program
    ** SCREEN$ bug fix
    ...
    Battle Bunny Battle Bunny December 2013 Announcements
  • Help needed with MIA software with custom (?) loaderHi, I've got into my hands recently a bunch of Polish educational software which are unknown MIA on WOS. I believe they are protected with some…

    ... 1800
    0x5CD9 LDIR ; Fill screen with random data from ROM ... a master copy (from BASIC LINE 4)
    0x5CDE ... br /> ;Update destination (screen) address in IX
    ;Screen goes from
    screen address space
    ...
    lfaria lfaria August 2016 MIA/STP/SDP
  • Graphics program in AssemblyHi so I think I'm getting the hang of this so I've done this program. It writes directly to the screen. I'm using ZX Spin. [code] LD HL,16384 LD B,…

    ... , if you really need to fill screen with one byte, use much ... tried to load this from BASIC by POKEING the DATA values ...
    ivanb303 ivanb303 October 2016 Assembler
  • Z88I was just reading about the Z88 and was amazed to read that you could link it up to a PC!!!!! That bloke Sinclair was just leaps and bound ahead of…

    ... it only had a very basic LCD screen but I would love ...
    stupidget stupidget August 2003 Sinclair Miscellaneous
  • General info about MCoder 3Hi all. I've recently downloaded MCoder 3 'cause I read somewhere that it was the best choice to compile your already made BASIC programs, which I h…

    ... to compile your already made BASIC programs, which I have plenty ... />
    1. You load your BASIC program
    2. You load ... automaticly executes (it loads before BASIC, after SCREEN$) and compiles your program ...
    na_th_an na_th_an August 2003 Development
  • EmuZWin version 2.3 Final release. To be continued...This is the Final release of the version 2.3, but hope version 2.4 will be ready soon, with great new features added... Version 2.3 Release 1.99 (15…

    ... "Use DirectX in Fill-Screen", and going to full screen and back to ... in normal state (not full screen and not maximized).
    [*] Reporting ...
    Vladimir Kladov Vladimir Kladov March 2004 Emulators
  • Development advice I was an user of the Spectrum 48K in the old days. I arribed to learn a lot of BASIC, and a bit of assembler. The time have passed, and now I am …

    ... to learn a lot of BASIC, and a bit of assembler ... the classic MONS/GENS, Hisoft Basic, and Hisoft C, it seems ... /> I am able to create Screen$, the basic loader, and compile C ... be able to inject my Basic loader, Screen$, and compiled MC.
    jgutierrez jgutierrez March 2006 Development
  • Breakpoints and other questionsSome games have LDIRs, LDDRs, ANDs and XORs before they jump to the real start address (and some other stuff that I don't understand yet). If I want …

    ... of unprotected games containing a Basic loader, screen$ with header and code ... />
    10 clear 24999 : load "" screen$ : poke 23739,111 : load "" code ...
    zxbruno zxbruno June 2008 Emulators
  • Un-named AGD 3 gameI've been playing about with (and learning a lot about) Mr. Cauldwells excellent AGD 3.0 today (being off work with shot knees has given me a lot of …

    ... game. I've drawn a basic status screen (i'll add more ...
    TechnicianSi TechnicianSi April 2012 New game ideas
  • Serpens[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027424[/url] Hack of [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027492[/url] Ed…

    ... , all with the same basic loading screen and all attributed to 'Macloc ...
    Alessandro Grussu Alessandro Grussu June 2012 Infoseek database
  • BBC Micro from 2012 (almost)I just replaced the Raspberry Pi (the original one I had was stolen...grrr) with one of the new v2 boards. RiscOS has just been made available for th…

    ... TV set.
    * Has BBC BASIC as the principal language interpreter ... a full screen Task window on RiscOS, start BASIC, use screen modes just ... 's GPIO pins from BBC BASIC too. Just like the user ...
    Winston Winston November 2012 Chit chat
  • How do I convert a .z80 snapshot to a tape file?I've been fiddling with this for a while but can't get it to work reliably. I use Marvin to write short BASIC and assembly programs that uses .z80 in…

    ... use Marvin to write short BASIC and assembly programs that uses ... need to save the BASIC listing, screen and machine code data as ...
    ivanb303 ivanb303 November 2017 Emulators
  • PAW questionThis may not be the right place but anyways there it goes: I've been trying to figure out how to import graphic files in .SCR format in the PAW parse…

    ... the graphic information into the screen, the bitmap first, then ... because the way the spectrum screen memory is organised using these ... chunks will make loading the screen data very simple rather than ... do is to go into basic, SAVE "SCREEN" CODE 16384,6912, load ...
    cyborg cyborg November 2001 Sinclair Miscellaneous
  • did anybody program games for their spectrum?did anybody make games for their spectrum and have you still got them in tap/z80 format. i once attempted to make a side scrolling game but it didn…

    ... , Tkrap64 wrote:
    But with Basic i'm :p with Assembler ... . It's just a very basic Speccy screen viewer program - just open ... window and it displays the screen.
    The zip contains an ...
    Woody Woody December 2002 Games
  • Best strategy war game on the Spectrum?Great to find a site like this...Ive owned so many consoles etc since buying my 48K Spectrum as a kid...but I have more affection for the Spectrum th…

    ... norsemen), lo-fi graphics, BASIC, one screen 4 sides romp. oh they ...
    sickhappyidle sickhappyidle September 2003 Games
  • 8 track cartridgeThis is probably a very silly post, but with all the talk of transferring Spectrum games to strange formats..... Has anyone ever used an 8-track car…

    ... norsemen), lo-fi graphics, BASIC, one screen 4 sides romp. oh they ...
    The Mighty Dopethrone The Mighty Dopethrone September 2003 Sinclair Miscellaneous
  • An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…

    ... text at anywhere on screen, pixel rather than character ... for pure speed of development Basic suits me... ok, ... 512K (-100K for Rom, basic vars, screen memory etc) to play ... /> That`s heaven to a basic coder :)

    --------------------------------
    CKay CKay August 2004 Development
  • An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…

    ... text at anywhere on screen, pixel rather than character ... for pure speed of development Basic suits me... ok, ... 512K (-100K for Rom, basic vars, screen memory etc) to play ... /> That`s heaven to a basic coder :)

    --------------------------------
    Sadako Sadako August 2004 Development
  • GraphicsI can't find this posted anywhere else, but how do you use graphics, other than circle, pixels and lines? For example, how do you draw a filled box o…

    ... ://www.wearmouth.demon.co.uk/BASIC/shapes.bas"]http://www.wearmouth ... /> There is a nice short BASIC fill routine that comes with BASin ...
    Geoff Geoff July 2005 Sinclair Basic
  • GraphicsI can't find this posted anywhere else, but how do you use graphics, other than circle, pixels and lines? For example, how do you draw a filled box o…

    ... ://www.wearmouth.demon.co.uk/BASIC/shapes.bas"]http://www.wearmouth ... /> There is a nice short BASIC fill routine that comes with BASin ...
    Dr BEEP Dr BEEP July 2005 Sinclair Basic
  • games on diskHelp does anyone know of any tape to disk transfere utility for the +3 speccy? I have games on tape & would like them on disk.Better still got the di…

    ... . I want:

    Basic loader
    Screen$
    block(s) of ... that's it, no corrupted screen displays.

    Mr Barker ...
    DEATH DEATH November 2005 Wanted
  • What software do I need so I can transfer tape games to disk?What utility would I need so I can save tape based games onto specci disks? Can I download something of the web or is there something available to bu…

    ... be "proper" - as in, BASIC loader, SCREEN$ and then a block or ...
    DEATH DEATH December 2005 Sinclair Basic
  • Screen DisolveHas anyone got any good assembly code to dissolve the screen I could see

    ... /> org 32768


    ; Fill screen with pixels

    LD ...
    robpearmain robpearmain February 2006 Development
  • Development advice I was an user of the Spectrum 48K in the old days. I arribed to learn a lot of BASIC, and a bit of assembler. The time have passed, and now I am …

    ... be able to inject my Basic loader, Screen$, and compiled MC.
    Alcoholics Anonymous Alcoholics Anonymous March 2006 Development
  • 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…

    ... expected it to run from BASIC, execute itself and return to ... BASIC after execution. However, it executed on black screen with ... white ink (instead of BASIC white screen with black ...
    Ralf Ralf September 2006 Development
<1234567…34>

Latest Posts

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