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<1…17181920212223…34>
  • Rom Routines list ?Exist some document that show detailled the routines on the spectrum ROM ? Ad for the Spectrum +3 ? are they the same or exist more ? Example i was …

    ... the documents you said the PLOT-SUB routine is describe as ... this:

    ;; PLOT-SUB
    L22E5: LD ($5C7D ... ),BC ; store new x/y values in COORDS
    plot-sub want the x and y parameters in ...
    arfgh arfgh June 2010 Sinclair Basic
  • 'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…

    ... on the screen
    ; E = X-coordinate.

    ; First of ...

    and 224 ; Bit-mask 11100000 in binary
    ; Throw ... , d
    and 24 ; Bit-mask 00011000
    add a, 64 ...
    ajmoss ajmoss June 2010 Sinclair Basic
  • Sevenup problemCan Sevenup import pictures bigger than Spectrum screen (256x192 pixels)? The version I tried didn't told me directly that it isn't possible but the…

    ... again :)

    [QUOTE]Retro-X Painter supports very large Spectrum ... have never tested thoroughly Retro-X:oops: When I downloaded it ... , with attrs, without attrs, with mask etc.) like in Sevenup?
    Ralf Ralf June 2010 Development
  • Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…

    ... /> ;convert the Y and X pixel values to the correct ... down - but ignore the following Mask shifting
    ;if the ... the X value is on an actual ... Rotated Character Data, mask it with the Mask Byte and the ... - B = Y Value C = X Value On Exit - DE = Screen ...
    Turkwel Turkwel June 2010 Development
  • Sprite MaskingI was looking at the sprites in some games, and noticed they have sprite followed by mask. Usually a row at a time (so the mask is sort of interleave…

    ... , and then one byte of mask.

    it's lots ... then lots of bytes of mask...

    I didn't ... could ever actually find any assembly code on the Z88Dk site ...
    Gedlion Gedlion June 2010 Development
  • for (;;) { }What does that piece of code do in C? Well I am familiar with something like for (i=0; i<100; i++) { } but I haven't understood what happens if you l…

    ... Serious note: Use ++x rather than x++ in a for ... br /> Do you mean that ++x; uses fewer instructions so that ... tighter than had I chosen x++;?
    That makes ... but the PDP-11 assembly has both INC Rn ... [/code]
    which means x++; the only difference as far ...
    wilsonsamm wilsonsamm June 2010 Chit chat
  • Maybe I'm Getting old...because I'm starting to sound like my grand dad, but I've been going to the movies and people are taking their children at a very young age to the mo…

    ... , but the rest of the plot was a bit lost until ... to stick on a Wolfman mask and go rob coaches and ...
    deadpan666 deadpan666 June 2010 Chit chat
  • Budget Game World Cup qualifier thread!In anticipation of the cup final I thought of an idea that may be a little awkward to set up but could be quite fun, and may decide the definitive bu…

    ... /> Action Biker.
    Agent X.
    Agent X 2.
    Amaurote.
    Super Robin Hood.
    The Plot.
    Thrust.
    Treasure Island ...
    dm_boozefreek dm_boozefreek July 2010 Games
  • Budget Game World Cup qualifier thread!In anticipation of the cup final I thought of an idea that may be a little awkward to set up but could be quite fun, and may decide the definitive bu…

    ... /> Action Biker.
    Agent X.
    Agent X 2.
    Amaurote.
    Terminus.
    The Plot.
    Thrust.
    Treasure Island ...
    dm_boozefreek dm_boozefreek July 2010 Games
  • Ziggy 0.4The latest version of Ziggy is now available from the same link as before i.e [URL="http://ramtop.wordpress.com/"]here[/URL]. I've made changes to t…

    ... have a soundblaster
    X-Fi sound card that works ... br /> System.Windows.Forms
    Assembly Version: 2.0.0.0 ... br /> ----------------------------------------
    msvcm90
    Assembly Version: 9.0.30729.4148 ...
    ASH-II ASH-II July 2010 Emulators
  • Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…

    ... you see it say "Unroll X times", it means you need ... the identical code in your assembly listing (or use a macro ...
    Winston Winston August 2010 Sinclair Basic
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... MC I would use a PLOT function for screenaddress with y ... /x-coordinates and a calculation to ... a counter and recall the PLOT routine (#22b1) when you go ...
    Dr BEEP Dr BEEP August 2010 Sinclair Basic
  • About BMP2SCR and IFLI filesOne of my doubts with LCD's image tool program is what I can do with IFLI files (ZX 128 mode), once I've converted any image in this format. How can …

    ... either:

    1) An Assembly listing of the player/viewer ... outputed by Bmp2SCR (or retro X)...

    OR

    kgmcneil kgmcneil August 2010 Sinclair Miscellaneous
  • SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…

    ... Matthew Westcott
    10 CLS : PLOT 180,60: LET a=12 ... : LET x=2: LET y=2: GOSUB ... IF a=0 THEN DRAW x,0: RETURN
    30 LET ... -1: LET y=-y: LET x=-x: GO SUB 20: LET y ... =-y: LET x=-x: GO SUB 40: LET a ...
    kgmcneil kgmcneil September 2010 Sinclair Miscellaneous
  • About BMP2SCR and IFLI filesOne of my doubts with LCD's image tool program is what I can do with IFLI files (ZX 128 mode), once I've converted any image in this format. How can …

    ... and faster routines from Retro-X and make a Linux port ... is either:
    1) An Assembly listing of the player/viewer ... outputed by Bmp2SCR (or retro X)...
    [/QUOTE]
    Ask Gasman ...
    LCD LCD September 2010 Sinclair Miscellaneous
  • DRAW x,y,a Algorithm - how does the ROM do it?Hi all, Getting on with SpecOS, and one of the things I would love to do is to preserve the original ROM's behaviour when drawing Arcs. This is don…

    ... INK 7: CLS
    20 PLOT 75,35: REM just a ... position
    30 INPUT "X value ";X: PRINT "X = ";X;
    40 INPUT "Y ... SC+M1
    230 LET X=SC-PEEK 23677
    ... A LINE' from lastposition to X,Y
    510 LET ... Y
    530 LET X=ABS X: LET Y=ABS Y
    Marcelo Marcelo September 2010 Sinclair Basic
  • Help! Reverse engineering a Spectrum game[deleted]

    ... only need one routine to plot single pixels (starfrields, effects so ... to convert to 1 over x.

    Border/Fade:
    ASM ASM October 2010 Development
  • Opinion on new 128K only gamesHello, Being new to the WOS community, I am unclear on the attitude towards 128K only software, that is; Is there a strong need to support the 48K m…

    ... , X char
    ;Data Outputted: Gfx+Attr
    ;Interleave: Sprite
    ;Mask ...
    Ralf Ralf October 2010 New game ideas
  • Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …

    ... script with a hacked together assembly routine for playing back the ... /&ei=ytNATNWOCYT2swP60_WNDA&sa=X&oi=translate&ct ...
    kgmcneil kgmcneil October 2010 Announcements
  • Opinion on new 128K only gamesHello, Being new to the WOS community, I am unclear on the attitude towards 128K only software, that is; Is there a strong need to support the 48K m…

    ... you, many of them generating assembly code at the click of ... /&ei=ytNATNWOCYT2swP60_WNDA&sa=X&oi=translate&ct ... tool, which can output ZX assembly to play your music using ... to the ZX... Its outputed assembly player also works well alongside ...
    kgmcneil kgmcneil October 2010 New game ideas
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... n=13
    30 LET x=127: LET y=87
    70 LET u=x+r*COS (s+i*2 ... /> 90 IF i=0 THEN PLOT u,v: GOTO 110
    Meurglys68 Meurglys68 October 2010 Sinclair Basic
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... =1 TO n
    40 PLOT 128,88
    50 LET ... x=40*COS a: LET y= ...
    60 DRAW x,y,-PI: DRAW x,y,PI
    70 ...
    Meurglys68 Meurglys68 October 2010 Sinclair Basic
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    ... TO 20
    100 LET x=SCRw/2:
    LET y ... /2:
    LET r=MIN(x,y):
    LET S=1 ... TO n:
    LET u=x+r*COS(s+i*2 ... ):
    IF i=0 THEN PLOT u,v:
    GO TO ...
    Dunny Dunny October 2010 Sinclair Basic
  • Opinion on new 128K only gamesHello, Being new to the WOS community, I am unclear on the attitude towards 128K only software, that is; Is there a strong need to support the 48K m…

    ... sprite pre-shifted with a mask:

    [URL=http ... main player sprite is 24 x 24 pixels with 8 ... to 32 x 24 pixels. So including a mask, here is ... BYTES (one standard frame, no mask)
    96 * 2 = 192 ... BYTES (one frame with a mask)
    192 * 32 frames = ...
    ASM ASM October 2010 New game ideas
  • Opinion on new 128K only gamesHello, Being new to the WOS community, I am unclear on the attitude towards 128K only software, that is; Is there a strong need to support the 48K m…

    ... = 72 bytes x 2 = 144 bytes per frame with mask.
    3 ...
    bobs bobs October 2010 New game ideas
  • RIP Benoit Mandelbrot[QUOTE]'Fractal' mathematician Benoit Mandelbrot dies aged 85 Mandelbrot had been highly critical of the world's banking system Benoit Mandelbrot, w…

    ... x=a: LET y=b
    50 PLOT a,b
    60 PLOT ... ,d
    70 PLOT e,f
    90 PLOT x,y
    100 ... =f
    140 LET x=INT ((g-x)/2+x+.5)
    150 ...
    Meurglys68 Meurglys68 October 2010 Chit chat
  • General purpose full screen input routineHi Folks, One of the things that annoyed me back in the 1980s with most BASICs was the lack of a full screen "formatted" input function. You could …

    ... :
    9015 REM I(1)=X Coord
    9020 REM I ...
    Paddy Coleman Paddy Coleman October 2010 Sinclair Basic
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... /> and ebx,0xFFFFFF ; Mask out alpha
    mov ... /> and eax,0xFFFFFF ; Mask out alpha
    add ...
    fmul st0,st1 ; x
    fadd st0,st4 ; ...
    fmul st0,st1 ; x
    fadd st0,st6 ; ... br /> fmul st0,st1 ; x
    fadd st0,st3 ; ...
    ASM ASM October 2010 Development
  • Learning Assembly LanguageHow easy would it be to learn assembly language for someone who has a decent grasp of Basic? I mean how long do you think it would take before I coul…

    ... port
    and a,1 ; Mask for SPACE
    jr nz ...
    dec (ix+SPR_xpos) ; X = X - 1
    jr no_right
    inc (ix+SPR_xpos) ; X = X + 1
    no_right
    ; ...
    move_ball inc (ix+SPR_xpos) ; X = X + 1
    ret

    ASM ASM October 2010 Development
  • Printer Printing Problem (assembler)I've a program that outputs to the lower screen at various places, using a combination of calls to RST $10 plus OUT-NUM-1 and PR-STRING. It also call…

    ... from 23677 to reset the PLOT X-position, and outputting to the ... guess, although it is the X-coord in the progress display ...
    Battle Bunny Battle Bunny November 2010 Development
<1…17181920212223…34>

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