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<1…23242526272829…34>
  • Proportional fontsI've been doing some proportional font drawing, purely on C level at the moment, but it's orders of magnitude slower than I'd want it to be. It's sti…

    ... do nothing in the lucky 0 case).

    ... probably useful when shifting 2 or more positions because of ... Shift right by 3, 2, 1 instead of left by 5, 6, 7 ... bits. Like when a 5 pixel-wide character needs ... right shifted by 2. Byte wide shifts (or RRC's) ...
    gp2000 gp2000 October 2016 Development
  • Proportional fontsI've been doing some proportional font drawing, purely on C level at the moment, but it's orders of magnitude slower than I'd want it to be. It's sti…

    ... data for the character set or font (as they're known ... ,64h,4ch,b8h;-2* ;0
    db 40h,fch ;1
    db ... /> db 44h,54h,54h,a8h;-2* ;3
    db 18h,28h,7ch ... db 74h,74h,74h,c8h ;5
    db 38h,54h,54h ...
    jamorski jamorski October 2016 Development
  • Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…

    ... only be a number between 0 and 255 so why complicate ... that numbers always appear as 2- or 4-digit numbers, depending on ... you refer to byte values or word values (two bytes is ... , from 1 to 3 digits for bytes, and from 1 to 5 digits for ...
    The_Bert The_Bert November 2016 Development
  • Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…

    ... only be a number between 0 and 255 so why ... that numbers always appear as 2- or 4-digit numbers, depending ... from 1 to 3 digits for bytes, and from 1 to 5 digits ... only be a number between 0 and 255 so why ... ., make more sense in hex (or binary) IMO.

    chriswyatt chriswyatt November 2016 Development
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... 0-7
    2) Compress 8x2 attributes starting from row 1 separately
    3 ... 8x8 attributes for row 0 to black/black (or maybe all rows ... into $4000 with dzx7_agileRCS
    5) Decompress attributes into [font=Courier ...
    colonel32 colonel32 November 2016 Development
  • A few questions about sound and keys in BASICIf I want sound in my BASIC game I have to use BEEP right ? It seems to lock up the CPU for far too long . On Arjun's page I found how to use CALL 94…

    ... :

    $028e. 5 KEY_SCAN {001} the keyboard scanning ... more than two keys, or pressing two keys and ... 0f 15 00001111
    5 04 4 00000100 T ... 05 5 00000101 G 06 6 ... 3 00000011 Y 02 2 00000010 H 01 1 00000001 B 00 0 ...
    Battle Bunny Battle Bunny December 2016 Sinclair Basic
  • How would you approach parallax?So ... there is this trick by Joffa that we all know...of waiting for the ULA to reach certain pattern on the screen using the IN command. And then s…

    ... go as it only adds 2 t-states. So just ... the top part. Or it could be 5-3-1 or another ratio. You ... need to prepare three times 5 ... just set the carry to 0. Need to see in ... ) so redrawing / remembering background or XOR-ing can be very ...
    tstih tstih December 2016 Development
  • Mysterious error message ?Something just occurred to me, when I try to load certain JSW games which require 128k memory into my emulator in 48K mode I get this error message. …

    ... 48k (H=0), 128k (H=1), +3 (H=2) or unknown (H= ... /> HALT
    RES 5,(IY+1)
    LD HL,5B66H ... CALL 16B0H
    RES 5,(IY+37H)
    CALL ... /> RES 5,(IY+1)
    R034A: LD HL,0
    LD ... DEFW 0D6EH
    SET 5,(IY+2)
    LD DE,(MSERR) ...
    John Elliott John Elliott December 2016 Sinclair Miscellaneous
  • 1987-2017Here we are, with our tradional thread about games released thirty years ago, where we can contemplate how bad they have aged, how bad they [i]alread…

    ... worth of a big fat 0/5

    [b]The ... titles like Firebirds, Galaxian or Space Zombies. 1/5

    [b]They ... not bad for a homage. 2.5/5.

    [b]Collision Course ... adding substance to the gameplay. 3,5/5

    [b]Super G ...
    Alessandro Grussu Alessandro Grussu January 2017 Games
  • Anagram creation - not as easy as it looks?I'm writing a story and I have a mystery villain who is never revealed. My main clue was to have been that every alias he uses is an anagram of the f…

    ... /> 3 DEF FN p(a)=PEEK a+256*PEEK (a+1)
    5 ... /> 27 LET n(c,1)=n(c,1)+1
    29 NEXT a ... /> LET name=name+1: PRINT #0;AT 0,0;name,,AT 0,8;

    0: IF n(c,2) THEN
    LET n(c,2)=n(c,2)-1 ...
    Battle Bunny Battle Bunny January 2017 BASIC
  • c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…

    ... doesn't load on +2a or +3. Tried USR0 and resetting bit ... 128/+2, banks 1,3,5,7 are contended, on +2a/+3, banks 4,5,6 ... is on page 2, and normally page 0 should be paged ... I will check if page 0 is paged in in all ... During digi playback always page 0 paged in.
    Geco Geco March 2017 Announcements
  • c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…

    ... get problem with tzx load or tap too?
    TZX ... checker). RAM banks stay at 5/2/0. YM tap version. Here ... br /> Bit 0: Paging mode. 0=normal, 1=special
    Bit 1: In normal ... 2: +3DOS
    ROM 3: 48 BASIC
    Bit 3: Disk motor; 1=on, 0 ...
    FrankT FrankT March 2017 Announcements
  • XeldaI've decided to take on the Zelda tribute game and take over the Xelda title (because it's a great title name). Working with the MK2 Mojon twins gam…

    ... free to use, abuse, adapt or ignore. It encodes the entire ...

    Note avoidance of 0,1,I,O which are the ...
    GReW GReW March 2017 Development
  • "ZX80 Brain" RPN CalculatorIt is at times like [url=https://www.worldofspectrum.org/forums/discussion/54176/depression]when threads such as this are posted[/url] that I get the…

    ... -PI*0.5. Strangely, using PI/2 returns the correct value 0. Higher ... 0 - i.e. PI*1.5, PI*2.5, etc - are fine whether using PI*1.5 or 3 ... *PI/2. TAN ... PI by 2 (don't multiply by 0.5!), COS returns 0, TAN will ...
    The Mighty Dopethrone The Mighty Dopethrone March 2017 Sinclair Basic
  • ZXSCLZF - Yet another Screen CompressorQuick disclaimer before I continue, this compressor does not shrink screens as small as some of the others posted here, in particular the very good z…

    ... ,"-o",2)==0) {
    //
    // open new file to put output in or ... /> _YSIZE=atoi(*++argv);
    i-=5;
    } else {
    printf("error ... .r[1]=pos.r[1]3;
    pos.r[1]=pos.r[1]&3;
    TomD TomD April 2017 Development
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... are limited to 7k or so, I am ... br /> fin = esxdos_f_open(argv[1],(argc == 2) ? ESXDOS_MODE_R|ESXDOS_MODE_W|ESXDOS_MODE_OE : ESXDOS_MODE_R ... *4+0];
    b += (255.0f/3.0f)/2.0f;< ... errno,(fin == fout) ? argv[1] : argv[2]);

    // process ...
    Alcoholics Anonymous Alcoholics Anonymous August 2017 Brand new software
  • In-game Screen FlickeringHi folks, today while playing 'Beyond the Ice Palace' I noticed strange behavior of my Issue 6a Spectrum+. When I pressed '2' (for UP) + 'O' (for …

    ... membrane connected and any keys or their combination pressed)
    I ... / -2.3
    Pin2: -2.10 / -2.5
    Pin3: -2.10 / -2.6
    [b]Pin4: -0.5 / -1.5 ... [/b]
    Pin5: -2 ...
    Vaylo Vaylo September 2017 Hardware
  • Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…

    ... determined that the +2A/+3 machines have a floating bus ... that is ports 1, 5, 9, 13 . . . 4093)
    2. The bus always ... disabled).
    3. However, if bit 5 is reset, the ... ULA ORed with 1 (i.e. bit 0 is always set ... is drawing the border or during the four T ...
    Ast_A_Moore Ast_A_Moore September 2017 Development
  • Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …

    ...
    st_p5a defb 2
    defm at,3,1,"0-3 ",146,95,95," 00xx ... 01xx"
    defm at,5,3,"8 ",161,161,161," 1000 ... 1011"
    defm at,5,17,"12 ",159,159,159 ... like a long streched bass or hish-sound."
    ...
    Scorpion_Realities Scorpion_Realities October 2017 Development
  • A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…

    ... vary if more or less than 5 keys are redefined ... 35335
    ; Custom 1 35336
    ; Custom 2 35337

    LD DE,052 ; 0.2 sec.
    CALL 949 ; ... /> MESS_DX: DEFM CC_PAPER,0,CC_INK,3,CC_BRIGHT,1,CC_AT,21,20,"RIGHT ...
    Alessandro Grussu Alessandro Grussu October 2017 Development
  • WoS APIWe are almost (tm) in a position to pick up where we left off with the API. For backwards compatibility, we are intending that the old URLs work, …

    ... quote="Lee Fogarty;924694"]Fixed. Or not. Who knows?[/quote]
    1","year":"1984","month":"2","day":"0","cover":null ... 550,"issue":"2","year":"1984","month":"3","day":"0","cover":null ... ","year":"1984","month":"5","day":"0","cover":null,"language":" ...
    polomint polomint October 2017 Updates
  • Need Some Basic HelpHi all, I’ve decided to give programming in Spectrum Basic a go again (bit of nostalgia trip!) and I’m trying to develop a CYOA style game. How…

    ... /> 5.007.1.0:123 "Got any good boats for sale?"
    5.007.2.0 ... :129 "Err, sorry, wrong boathouse."
    5.007.3.0:195 ... chain back to the beginning - or finding the fault in the ...
    Battle Bunny Battle Bunny April 2018 Sinclair Basic
<1…23242526272829…34>

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