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<1…22232425262728…34>
  • Movin And A Groovin Horizontal Flip improvementOn the left is the flip horizontal portion from Andy Pennell'S excellent Movin' & a Groovin' machine code screen routines from Your Spectrum #19 (Oct…

    ... .1985). He says about the routine "The horizontal flip is noticeably ...
    MatGubbins MatGubbins August 2013 Development
  • MGT MOUSE - exist really ?I read disassembly of +D rom/ram code and from address #2249 is routine for read MGT MOUSE ports. I can't find any info about "MGT MOUSE". Exist real…

    ... and from address #2249 is routine for read MGT MOUSE ports ... :
    [CODE]THE 'MOUSE' ROUTINE
    This routine is also present in ...
    velesoft velesoft August 2013 Hardware
  • 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…

    ... impacting the reset of the routine... enough of the postulating...
    [/code]

    ok the routine...

    [code]
    1600 ... adding extra opps to the routine.)

    It should return ...
    wibble wibble August 2013 Development
  • MC LPRINT 23681Having problems with this routine to print large on the screen using LPRINT, it works ok in BASIC, but cant seem to get it to loop for some reason in…

    Having problems with this routine to print large on the ...
    call print ;call print routine
    pop bc
    pop ...
    daveysludge daveysludge September 2013 Development
  • Copying data between memory banks in USR0 modeI am experimenting with Funky Fungus to load the majority of its data (levels, screens, music etc.) into memory banks 1, 3, 4, 6 and (partly) 7 by sw…

    ... version also available as a .TRD file.)

    I understand ...
    Alessandro Grussu Alessandro Grussu September 2013 Development
  • JSW2 - Game Loader DifferencesThere are three official releases of JSW2. I'm not counting the 'JSW2-128' version here as far as I'm aware this was not in any way 'official' as it …

    ... additions.

    Original teleport routine is copyright Your Spectrum issue ... (47416 bytes) and the keypad routine as per JSW1 albeit this ...
    spider spider September 2013 Sinclair Miscellaneous
  • JSW1 - Game Loader DifferencesThere were four releases (five if you count the PGC bugfix) although with a few exceptions the loaders are about the same. [B]Loader: Pre-Production…

    ... Million" uses Speedlock. The 'saver' routine is loaded and the game ...
    spider spider September 2013 Sinclair Miscellaneous
  • RCS HelpThis plea for HELP is related to the RCS screen handling routines thread. To further save space in the current crop of routines its looking like the …

    ... needs to be reversed. The routine takes an address in BC ... then D

    Current routine:
    [CODE]78 ld a ...
    jamorski jamorski September 2013 Development
  • MOVE_M Object Movement Manager for BASICAs moving things around on the screen is usually the slowest part of a game written in BASIC, I've been pottering around with this routine to handle …

    ... features.

    The routine gets its instructions from three ... a collision handler routine or key handler routine is required, or ... ; else line*256 for exception routine
    ; attrib = $FF ... ; GOSUB = line*256 for exception routine
    ;key = $FF to ...
    Battle Bunny Battle Bunny September 2013 Sinclair Basic
  • New game: Krunel[IMG]http://www.speccy.pl/images/news/krunel_00.png[/IMG] Game name: Krunel Type: logical Author/group: [url]speccy.pl[/url] Platform: ZX Spectrum …

    ... : .tap, .dsk (TOS FDD3000 version), .trd



    The ...
    tygrys tygrys October 2013 Brand new software
  • LZ4 decoderI encountered the [URL="http://code.google.com/p/lz4/"]LZ4 compressor[/URL] a few weeks ago. Reading the [URL="http://fastcompression.blogspot.co.uk…

    ... /> ;; counter value.
    ;;
    ;; The routine leaves carry clear
    .getlength ...
    stephenw32768 stephenw32768 October 2013 Development
  • filled shape creating codeDevelopment is continuing well on a resurrected project of mine from about 20 years ago. Speed and size optimizations are going well along with displ…

    ... for needs a type of routine that I've not attempted ... filled 4 sided shape creating routine. Ideally give it 4 sets ...
    jamorski jamorski October 2013 Development
  • Documentation of ZX Spectrum built-in functionsHi, Is there a documentation of the built-in ZX Spectrum 48+ functions (assembly)? I am thinking about something like the documentation included in …

    ... are stored, where is each routine for PRINT, COS, SIN, etc ...
    Zerg Zerg October 2013 Development
  • Questions about Spectrum 48K soundsHi, I find it a very intriguing task to produce sounds on Spectrum 48K, which has only a beeper. - I am very curious to know how the games produced t…

    ... it's own, faster BEEP routine, because storing all it's ... 48 KB
    - The BEEP routine produces a sine wave?
    Zerg Zerg 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…

    ... /> ldir[/CODE]

    The routine above runs in 86041T, thus ... [/CODE]

    The routine above runs in 51204T, thus ... /> This looks much better. The routine above runs in 67365T, thus ... [/CODE]

    The routine above runs in 67225T, thus ...
    Einar Saukas Einar Saukas October 2013 Development
  • Nasty 'Gotcha' for multicolour timingI thought I would be better developing my multicolour routine on the 48K first, being the slowest, so it would then be sure to work on the 128K varia…

    ... be better developing my multicolour routine on the 48K first, being ... . I've just written a routine that seems so awkward it ...
    joefish joefish October 2013 Development
  • Want to start making AY tunes but need help!Hey everyone, I have ZX Spectrum+, a DivIDE plus, an AY Magic card, and a Kempston equivalent joystick interface (which I believe can also emulate o…

    ... in the format .SCL or .TRD, which to my knowledge can ...
    Synthesize Me Synthesize Me October 2013 Sinclair Miscellaneous
  • z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…

    ... at address 0xd4d4 (interrupt service routine entry)
    wpoke(0xd4d5, ... screen
    LDIR
    ; ROM routine, read keys and update clock ... br />
    ; pointers to interrupt routine.

    defb 200,200 ...
    slenkar slenkar October 2013 Development
  • Renegade Hit Squad Re-releaseI've found a problem with TZX included in file [url]ftp://ftp.worldofspectrum.org/pub/sinclair/games/r/Renegade(TheHitSquad).tzx.zip[/url]. The Spee…

    ... is loaded by the ROM routine, so can't be a ...
    zx81 zx81 October 2013 MIA/STP/SDP
  • SkoolKit 3.6SkoolKit 3.6 has been released. In case you are unaware, SkoolKit is a set of command line utilities (written in Python) for disassembling Spectrum …

    ... or Z80
    [*]automatically label routine entry points
    [*]automatically annotate ... every routine entry point with a list ...
    SkoolKid SkoolKid November 2013 Announcements
  • that "listing variables during runtime" thingWell, I did eventually finish this, but with my meds playing up I don't have much time each day that I can spend at the computer, so it's taken rathe…

    ... 3rd - the improved SCREEN$ routine assembler listing:
    [ ... 4th - the streamlined print routine assembler listing:
    [ ... Part the 5th - the relocation routine assembler listing:
    [url ... addresses within the target routine, which would otherwise become ...
    Battle Bunny Battle Bunny November 2013 Sinclair Basic
  • Clear the screen from assemblerI want to clear the screen before I draw my graphic elements on it. Speed is not important so I was thinking of using the rom CLS option if that is p…

    I want to clear the screen before I draw my graphic elements on it. Speed is not important so I was thinking of using the rom CLS option if that is possible. Can anyone advise on how to call this command or some similar routine to clear the screen?
    Mr Millside Mr Millside November 2013 Development
  • Tricky ZX RepairHello guys, This time I put my hands on a very nice Issue 3 16K, upgraded to 48K. To bertter explain "nice", it is absolutely mint, not a scratch on…

    ... go through the whole initialization routine, halting with the first 1 ...
    Falco-F8L Falco-F8L December 2013 Hardware
  • This is Tritone (new beeper music compilation)A Battle of the Bits music compilation! All made by nix./site, brightentayle and, most importantly, TK90X Fan! \ ^_^ / All the songs in here use a b…

    ... %20%28trd%20image%29.rar].trd image[/url]
    [url=https ...
    Crash Nicker Crash Nicker December 2013 Brand new software
  • A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…

    ...
    ret

    ; paging routine
    ; destination page is a ... going to use any BASIC routine, I guess it could be ... given length (to put that routine inside BASIC). I'm doing ...
    Zup Zup December 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…

    ... levels, and requires no IM2 routine. The overall sound has been ...
    ccowley ccowley December 2013 Announcements
  • Interesting 48K failureI thought I'd recount a failure I've not seen mentioned before that I saw tonight while fixing a 48K issue 6 board. The background: The initial fail…

    ... border colour when the NMI routine exits (and also save the ...
    Winston Winston December 2013 Hardware
  • Using the lightgun...I am thinking of developing a game for the Sinclair/Cheetah lightguns, how do I go about reading the data from it (Basic and MC)? I am under the imp…

    ... correct?

    The same routine to read the data only ...
    daveysludge daveysludge December 2013 Development
  • SpecBAS 0.800 Released!Hi folks, it's that time again for another release. I was going to add a few more features, but I have other projects on the go at the moment, and it…

    ... to a better string copying routine
    CONST name,value - sets ...
    Dunny Dunny December 2013 Sinclair Basic
  • This is Tritone - Episode 2Yes, you have guessed right, this is sequel to [url=http://www.worldofspectrum.org/forums/showthread.php?t=45763]This is Tritone - Episode 1[/url]. M…

    ... %20%28trd%20image%29.rar]TRD image[/url]
    [*][url=https ...
    TK90XFan TK90XFan December 2013 Brand new software
<1…22232425262728…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

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