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  • generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…

    ... Galois LFSR
    ; x^16 + x^14 + x^13 + x^11 + 1

    Alcoholics Anonymous Alcoholics Anonymous July 2013 Sinclair Basic
  • Books that you just can't quit.Much as parts of the presentation,writing style infurates me, there is a book I just keep comming back to again and again. Its like the Yang to the …

    ... X(XPT)
    9420 LET NYPEN = FN Y(YPT)
    9430 PLOT ...
    9510 LET XPEN = FN X(XPT)
    9520 LET YPEN ...
    9620 LET XPEN = FN X(0)
    9630 LET YPEN ... RETURN
    9650 DEF FN X(Z) = INT ((XORIG + Z)*XYSCALE ...
    wibble wibble August 2013 Sinclair Basic
  • Books that you just can't quit.Much as parts of the presentation,writing style infurates me, there is a book I just keep comming back to again and again. Its like the Yang to the …

    ... SUB setorigin
    160 DIM X(30): DIM Y(30)
    X and Y.
    170 INPUT ... TO N
    200 LET X(I) = COS ALPHA: LET Y ...
    wibble wibble August 2013 Sinclair Basic
  • How much does Bifrost improve graphics (test 192x192 graphics)Inspired by the BIFROST library I made several experiments with 8x1 graphics at 192x192 resolution. The results are now overwhelming but under certai…

    ... dither pictures up to 224 x 64 with pixel ratio height ... probably that with fixed color mask you store pixels only so ...
    catmeows catmeows October 2013 Development
  • display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…

    ... =Red]LET e=b(8-x+c*8)[/COLOR]
    [/code ... with "LET e=2^( 7-x+c*8 )" would always be ... as well. Comparing them using PLOT (change my last listing by ... and changing line 6 to PLOT 255-x,175-y: RETURN) the ...
    Battle Bunny Battle Bunny October 2013 Sinclair Basic
  • Wow! This is really a staggering achievement (programming, but still interesting!)The subject of good/clever programming came up in the SE BASIC topic, and I thought I'd mention this, but then that thread went back on topic (er, no…

    ... if the icons had a mask bitmap). How many colours were ... , low resolution (320 x 200), medium (640 x 200) and high (don ...
    ewgf ewgf October 2013 Chit chat
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... ; port value
    and 7 ; mask unwanted bits
    ld bc ...
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... ld c, a ; inverse mask to C
    ld b ... ; x
    fstk1 ; x, 1
    fadd ; x + 1
    fstk ; x + ...
    fmul ; (x + 1) * 75
    fstk ; (x + 1) * 75, ... ; mantissa
    fmod ; r, (x + 1) * 75/65537
    ...
    chev chev October 2013 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…

    ... using version 0.5.x to see if that ... br /> ld a,6 ; mask for bits 110
    ld ... .
    ld a,2 ; mask for bits 010
    ld ... $+1
    and 2 ; mask off the red bit (7T ...
    stephenw32768 stephenw32768 October 2013 Development
  • IF EXIST?In MS-DOS scripting, there is an IF EXIST command that lets you check wether a file exists in disk or not. There are any way to check it out from BA…

    [QUOTE=Zup;730789]In MS-DOS scripting, there is an IF EXIST command that lets you check wether a file exists in disk or not.

    There are any way to check it out from BASIC (without breaking the program if it does not exist)?[/QUOTE]

    ...
    The_Bert The_Bert October 2013 Sinclair Basic
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... ), hl ; store it in x-ptr
    call in_assign ; ... clear most significant byte of x-ptr
    ld (ch_add ... else apply
    cpl ; mask to make
    and % ... call co_change ; update mask-t
    rlca ; shift mask
    rlca ; ...
    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... ; x, x
    fabs ; x, abs x = x'
    fgt 1 ; x, x', y
    fxch ; x, y, x ... to C'
    call plot_sub ; plot step
    exx ; main register ...
    chev chev October 2013 Development
  • Nintendo 'defends' high prices of downloadable gamesSatoru Iwata (the President of Nintendo) says in an interview; Quote ?[COLOR="Blue"]Although the mainstream idea regarding the digital business in …

    ... of Time and Majora's Mask (both on the N64), and ... get much time for myself :-x
    ewgf ewgf November 2013 Chit chat
  • Nintendo 'defends' high prices of downloadable gamesSatoru Iwata (the President of Nintendo) says in an interview; Quote ?[COLOR="Blue"]Although the mainstream idea regarding the digital business in …

    ... of Time and Majora's Mask (both on the N64), and ... get much time for myself :-x[/QUOTE]

    Wind Waker ...
    zeropolis79 zeropolis79 November 2013 Chit chat
  • If the Wii is a GameCube 1.5 ...... What does that make the Wii U? The Wii was described a few times as a GameCube 1.5 in terms of power, so are Nintendo now operatining one genera…

    ... Legend of Zelda: Majora?s Mask (N64)--and a one-level ... crush hour
    wolverines revenge (x men 2)
    wrestlemania x8 ...
    mel the bell mel the bell November 2013 Chit chat
  • Nintendo 'defends' high prices of downloadable gamesSatoru Iwata (the President of Nintendo) says in an interview; Quote ?[COLOR="Blue"]Although the mainstream idea regarding the digital business in …

    ... />
    I think Majora's Mask was best N64 game and ... a long time, 30 ships x 4 cups).
    Paradigm Shifter Paradigm Shifter November 2013 Chit chat
  • Nintendo 'defends' high prices of downloadable gamesSatoru Iwata (the President of Nintendo) says in an interview; Quote ?[COLOR="Blue"]Although the mainstream idea regarding the digital business in …

    ... not yet played Majora's Mask, but everyone says it ... a long time, 30 ships x 4 cups).[/QUOTE]
    ...
    F-Zero X is great, and it's ... I always wished F Zero X had two things; a ... On this new F-Zero X mod, as usual I ... of the 24 F-Zero X tracks , they all ...
    ewgf ewgf November 2013 Chit chat
  • Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…

    ... . Moving a sprite down x pixels is accomplished by subtracting ... x from the sprite graphic pointers ... -1 (or -2 for mask) is generated. The first char ... the sprite's individual characters. Mask sprites are the most difficult ...
    Alcoholics Anonymous Alcoholics Anonymous November 2013 Development
  • Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…

    ... )
    ;Sort Priorities: Mask, Char line, Y char, X char
    ;Data ... Outputted: Gfx
    ;Interleave: Sprite
    ;Mask: Yes ...
    slenkar slenkar November 2013 Development
  • Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…

    ... )
    ;Sort Priorities: Mask, Char line, Y char, X char
    ;Data ... Outputted: Gfx
    ;Interleave: Sprite
    ;Mask: Yes ...
    slenkar slenkar November 2013 Development
  • Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…

    ... )
    ;Sort Priorities: Mask, Char line, Y char, X char
    ;Data ... Outputted: Gfx
    ;Interleave: Sprite
    ;Mask: Yes ...
    slenkar slenkar November 2013 Development
  • Collision Detection in SP1Hi, Does anyone have a well-documented example of using collision detection in spritelib. I've search WoS and Z88DK forums but no joy. Something wi…

    ... />
    ; see if x-interval intersects

    ... iy+17) ; subtract x-threshold
    inc a ... Sort Priorities: Mask, Char line, Y char, X char
    ... ;Data Outputted: Gfx
    ;Interleave: Sprite
    ;Mask ...
    slenkar slenkar November 2013 Development
  • Collision Detection in SP1Hi, Does anyone have a well-documented example of using collision detection in spritelib. I've search WoS and Z88DK forums but no joy. Something wi…

    ... br />
    ; see if x-interval intersects

    ; ... a ; b = pixel x-coord of top left ... (iy+17) ; subtract x-threshold
    inc a< ... (ix+17) ; subtract x-threshold
    inc a< ...
    slenkar slenkar November 2013 Development
  • A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…

    ... one byte is AND binary mask, one byte is OR data ... list of data pointers and X/Y character co-ordinates.
    joefish joefish January 2014 Brand new software
  • A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…

    ... one byte is AND binary mask, one byte is OR data ... list of data pointers and X/Y character co-ordinates.[/QUOTE ...
    Einar Saukas Einar Saukas January 2014 Brand new software
  • Elliptical ChallengeSubsequent to the recent "Graph Plot" thread, I wrote this general purpose ellipse drawing routine which will plot (although it doesn't actually use …

    ... /> 3 DEF FN x(x,y,d)=FN a(x,y,FN r ... )):
    DEF FN a(x,y,r)=x*COS r-y*SIN ... DEF FN y(x,y,d)=FN b(x,y,FN r ... )):
    DEF FN b(x,y,r)=x*SIN r+y*COS ... +1 OR a=3:
    PLOT a(p1,1),a(p1 ... 3:
    LET a1=FN x(a(a,1),a(a ...
    Battle Bunny Battle Bunny January 2014 Development
  • Elliptical ChallengeSubsequent to the recent "Graph Plot" thread, I wrote this general purpose ellipse drawing routine which will plot (although it doesn't actually use …

    ... /> 3 DEF FN x(x,y,d)=FN a(x,y,FN r ... )):
    DEF FN a(x,y,r)=(x-x0)*COS r-(y ... DEF FN y(x,y,d)=FN b(x,y,FN r ... )):
    DEF FN b(x,y,r)=(x-x0)*SIN r+(y ... b=1 TO 4:
    PLOT p(a,b,1),p ... 4:
    LET a1=FN x(p(a,b,1),p ...
    Battle Bunny Battle Bunny January 2014 Development
  • Elliptical ChallengeSubsequent to the recent "Graph Plot" thread, I wrote this general purpose ellipse drawing routine which will plot (although it doesn't actually use …

    ... would take 12.5kb if x,y were merged into one ... calculate the addresses from the plot coordinates - but then I realised ...
    Battle Bunny Battle Bunny January 2014 Development
<1…19202122232425…34>

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