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<1…17181920212223…34>
  • Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…

    ... from around 1981 used 16x16 pixel sprites. Mr Do! used 12x12 ... pixel characters within a 16x16 pixel game grid.
    pixel bytes. There's enough time ... will take one ULA scan-line precisely. A program can poll ...
    ewgf ewgf August 2010 New game ideas
  • 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…

    ... ,row and "LOCATION" should be pixel oriented.

    [CODE]
    line 20
    [/CODE]

    Sparky Sparky August 2010 Sinclair Miscellaneous
  • The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.

    ... attributes then 8 rows of pixel data. You could still actually ... it tracing across the screen line by line. As soon as the ...
    joefish joefish August 2010 Games
  • The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.

    ... attributes then 8 rows of pixel data. You could still actually ... it tracing across the screen line by line. As soon as the ...
    Rickard Rickard August 2010 Games
  • The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.

    ... attributes then 8 rows of pixel data. You could still actually ... it tracing across the screen line by line. As soon as the ...
    Zup Zup August 2010 Games
  • [SpecOS] Question about OVEROk folks, this one has me (and a few friends) stumped. How would you implement OVER in SpecOS? Bear in mind that I'm after an algorithm which I appl…

    ... 0 on a INK 7 pixel, you get

    7 ... = 7

    So the line doesn't appear :(

    Dunny Dunny September 2010 Sinclair Miscellaneous
  • [SpecOS] Question about OVEROk folks, this one has me (and a few friends) stumped. How would you implement OVER in SpecOS? Bear in mind that I'm after an algorithm which I appl…

    ... br />
    So the line doesn't appear :(
    [/QUOTE ... would only expect a line to "toggle" existing pixels ...
    would cause the line to appear and then disappear ... can XOR the current pixel with the selected colour, ... REM XOR over the line with ink 0[/code ...
    Jonathan Harston Jonathan Harston September 2010 Sinclair Miscellaneous
  • ccompletly baffeled machine codeHi everyone, BEFORE you ask i have not asked help for loads of problems i have recently now encountered and i figured the problems out myself, hones…

    ... you can change any single pixel of it you like without ... an effect on any other pixel. Once something has appeared ... 3,12 into the appropriate pixel X, Y values for ... inc h ;move down one line on the screen
    djnz ...
    Turkwel Turkwel September 2010 Sinclair Miscellaneous
  • Help! Reverse engineering a Spectrum game[deleted]

    ... is optimised when plotting one pixel and filling the whole screen ... /> 17 - A line draw routine, optimised when drawing one pixel and horizontal ...
    ASM ASM October 2010 Development
  • Help! Reverse engineering a Spectrum game[deleted]

    ... is optimised when plotting one pixel and filling the whole screen ... /> 17 - A line draw routine, optimised when drawing one pixel and horizontal ...
    Ralf Ralf October 2010 Development
  • Sprite RoutineI was wondering if anyone could point me in the direction of a really basic example of a per-pixel sprite routine? Preferably commented. The screen …

    ... />
    1st - 64 top pixel lines
    2nd - 64 middle ...
    3rd - 64 middle pixel lines

    The ... pixel lines 0-7
    Leftmost byte of the 7th line ...
    The leftmost byte for line 15th will be H=71 ... what will it be for line 16th?
    H=64 ...
    Ralf Ralf 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…

    ...

    ;GRAPHIC DATA:
    ;Pixel Size: ( 16, 8)
    ;Char ... , 1)
    ;Sort Priorities: Char line, X char
    ;Data Outputted ...
    Ralf Ralf October 2010 New game ideas
  • The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …

    ... graphics are 8 x 8 pixel character based, 4 bits ... or 80 32 x 32 pixel sprites depending on the ... on 256/512/1024 etc pixel boundaries. To explain things ... after the last line on the display (line 241 for example ... data to update VRAM before line 0 of the next ...
    ASM ASM October 2010 Sinclair Miscellaneous
  • 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…

    ... the Alpha memory map and pixel formats.
    Chapter ... /> BLOCK: A single 16*16 pixel bitmap.

    [ ... line raster table.

    Memory:

    2 Megabytes for pixel ...
    Table 2.12 - Pixel format ARGB1555

    Bit ...
    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…

    ... defb 11111111b,00000000b ; Sprite frame pixel data
    defb 11111111b,00000000b ... />

    ; --------------------------------------------------------------------------


    ; Line Position Table (defined as data ...
    ASM ASM October 2010 Development
  • emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…

    ... proprtional font? that prints a line of text at a time ... ?
    r-type smooth scorlling ? pixel sprites? interlaced video 384x256 with ... out by listening to the line in on your soundcard and ...
    ASM ASM November 2010 Emulators
  • Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …

    ... representation of the first line 99561 so I knew ... no terminator needed. Each line has three BYTES for ... the five digit BCD line number followed by three ... EXE) to perform a 50hz pixel smooth horizontal scroll:
    ... the RANDOMIZE USR 34304 line and used my RS232 ...
    ASM ASM November 2010 Development
  • How to Extract a Font from a Game?I remember it was possible to load/save your own fonts in ArtStudio on my Speccy. I also remember it was possible to loop the loaded block of a game …

    ... code to print text on pixel rather than character values.
    Line. Once you've written your ...
    Turkwel Turkwel November 2010 Games
  • 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…

    ... defb 11111111b,00000000b ; Sprite frame pixel data
    defb 11111111b,00000000b ... />

    ; --------------------------------------------------------------------------


    ; Line Position Table (defined as data ...
    sekrets sekrets November 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…

    ... defb 11111111b,00000000b ; Sprite frame pixel data
    defb 11111111b,00000000b ... />

    ; --------------------------------------------------------------------------


    ; Line Position Table (defined as data ...
    ASM ASM November 2010 Development
  • Why doesn't my routine work?I have a "level" defined by 504 bytes (28 squares across x 18 squares down) I'm trying to write a routine that will take an X,Y coordinate in pixels…

    ... one pixel in vertical direction is moving to another line and each line ...
    Fikee Fikee December 2010 Development
  • Why doesn't my routine work?I have a "level" defined by 504 bytes (28 squares across x 18 squares down) I'm trying to write a routine that will take an X,Y coordinate in pixels…

    ... one pixel in vertical direction is moving to another line and each line ...
    sekrets sekrets December 2010 Development
  • Moving screen while BEEPER's playing?Hi. For some time I think about it. First time I saw it on YouTube, on ZX Spectrum Orchestra video. Effects are of course rather simple but still…

    ... at the end of each line of the screen. Thus you ... only does it on the pixel rows, not the border rows ...
    joefish joefish December 2010 Development
  • Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …

    ...

    ;GRAPHIC DATA:
    ;Pixel Size: ( 16, 24)
    ;Char ... )
    ;Sort Priorities: Mask, Char line, Y char, X char
    Digital Prawn Digital Prawn December 2010 Development
  • Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …

    ...

    ;GRAPHIC DATA:
    ;Pixel Size: ( 16, 24)
    ;Char ... )
    ;Sort Priorities: Mask, Char line, Y char, X char
    Digital Prawn Digital Prawn December 2010 Development
  • Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …

    ... is planned before the first line is actually written which may ... bytes) is for a 1 pixel shift right, f400-f5ff is ... tables for 2,4,6 pixel shifts. You can use the ... plot to an odd horizontal pixel nothing will crash, you will ...
    Alcoholics Anonymous Alcoholics Anonymous December 2010 Development
  • Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…

    ... on pixel (with screen boundary checking) accuracy per frame using in-line ...
    Turkwel Turkwel February 2011 Development
  • Sprites masterclassHi All, You guys are probably tired of explaining sprites but I'd like to clarify a few things if possible. I've sorted the vertical aspect of scro…

    ... on pixel (with screen boundary checking) accuracy per frame using in-line ... does. it copies mask and pixel into two aligned buffers and ... is 1xRRD + 1xRR for 1 pixel precission and 2xRR for 2 ...
    Fikee Fikee February 2011 Development
  • Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…

    ... : 64 byte fetches per raster line.

    [QUOTE=AndyC;510904 ... faster than 40 cycles per pixel on spectrum screen. Not to ... you need to LDI ONE-PIXEL ROW onto the screen (out ...
    TVzombie TVzombie February 2011 Sinclair Basic
  • Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…

    ... you need to LDI ONE-PIXEL ROW onto the screen (out ... raster draws the screen one line at a time, so you ... to be drawing areas a pixel row at a time, not ...
    AndyC AndyC February 2011 Sinclair Basic
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