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  • Bug fixing woesGaahhhh! I've spent an afternoon off work agonizing over why my routine didn't work. It's something I'd already restarted so didn't want to wipe th…

    ... />
    [QUOTE=Battle Bunny;793675]Routine #1 changes A (LD), B ... ), C (POP), DE (LD) and routine #2 doesn't, so I ... /> I've barely done any assembly over the summer and seem ...
    R-Tape R-Tape September 2014 Development
  • Beautiful codeSome people see beauty or something sublime in maths formulas and equations, can anyone suggest examples of beautiful or sublime programming?

    ... =AndyC;796458](recursion) Hand tuned assembly is one of the few ... make it safe, the fill routine accepts a parameter that limits ...
    Alcoholics Anonymous Alcoholics Anonymous November 2014 Development
  • 64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…

    ... not used to coding in assembly, that's why I'm ... used in my buffer rendering routine. Maybe the way I assemble ...
    na_th_an na_th_an December 2014 Development
  • 64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…

    ... used to coding in pure assembly. Will check this out.
    routine can be discarded when using ...
    na_th_an na_th_an December 2014 Development
  • assembler for PcHi guys, I'm in the process of teaching myself machine code, and wondered if there is a good pc program for writing code. Or is the best thing to use…

    ...
    3) Create an Assembly File

    Create ... "D:\Spectrum Projects\Assembly\"

    The routine copies the first ... this example "D:\Spectrum Projects\Assembly\".
    * From the ... br /> cd "D:\Spectrum Projects\Assembly\"
    [/CODE]
    ...
    GReW GReW December 2014 Development
  • ZX-Assembler in progress...Dear readers, I just want to announce that ZX-Assembler is not longer only an idea in my mind. It's just alive. Unfortunately, it's too early to mak…

    ... , show its content as assembly, allow me to edit ... following categories:
    [LIST][*]assembly instructions (default option obviously)
    routine like address $0e9e ( ... br /> macros, loops, conditional assembly, full Z80 mnemonics, defines, ...
    clausjahn clausjahn February 2015 Emulators
  • Is bank 7 usable at all?Can you assemble stuff and page bank 7 in and out? I've encountered nothing but problems so far, where does it page to? 49152?

    ... . If you wrote just in assembly with your own interrupt, sound ... , not calling any routine (or at least any routine that could use ...
    Zup Zup February 2015 Development
  • assembler emulator or cross platformHi I have another question about cross compiling speccy assembly code. So using Pasmo as an example. If I was assembling code in Zxspin I can asse…

    ... a scrap of code or routine; but use Pasmo with Notepad ... are:
    [LIST]
    [*]Including assembly and binary files directly into ...
    GReW GReW March 2015 Development
  • assembler emulator or cross platformHi I have another question about cross compiling speccy assembly code. So using Pasmo as an example. If I was assembling code in Zxspin I can asse…

    ... a scrap of code or routine; but use Pasmo with Notepad ... are:
    [LIST]
    [*]Including assembly and binary files directly into ...
    Marko Marko March 2015 Development
  • Double height text...<p>Is here any good routines for printing a font double height?</p><p>I've concocted this ridiculous routine but I'm sure it can be done much better.…

    ... entry for the routine to work as a standalone assembly. Or to ...
    Gedlion Gedlion June 2015 Development
  • New game released: EXPLORER<div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Courier New';">- EXPLORER -</span></div><div><span style="font-si…

    ... (there's only an Assembly window-scroll routine). A pixel scroll version ... should involve a full Assembly core ...
    Luca Bordoni Luca Bordoni June 2015 Brand new software
  • New game released: EXPLORER<div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Courier New';">- EXPLORER -</span></div><div><span style="font-si…

    ... Assembly. The character-based movement from one side, and a timing routine ...
    Luca Bordoni Luca Bordoni June 2015 Brand new software
  • Hungarian notation for asm - Yes or No ?There is thing called hungarian notation - https://en.wikipedia.org/wiki/Hungarian_notation Basically it is all about using prefixed indetifier to i…

    ... APIs.[/quote]

    Every routine in Complica DX is documented ... worth it. When coding in Assembly, how often do you need ... to me. When calling any routine, I know exactly the valid ... 12.5Kb of highly optimized Assembly code, and I had to ...
    Einar Saukas Einar Saukas July 2015 Development
  • Basic SAVE and ZX Printer supportIs there a list of emulators that support any of these two features (basic SAVE and print to printer port)? Is there a emulator comparison some wh…

    ... trap the ROM's LPRINT routine and extract the text that ... output from a custom printer routine running in RAM.

    assembly listings.
    RMartins RMartins July 2015 Emulators
  • Removal of "reset on break" protection (old basic program)Hi, Long time lurker, here! This is hopefully quite simple but there's an old basic game in the I'd like to bring up to date / take a look at …

    ... routine through a dissasembler and include the relevant sections as inline assembly ...
    GReW GReW August 2015 Sinclair Basic
  • Code structureHi all, I'd be interested in opinions on the neatest way to do this. I've got a print string routine in which 0-31 are reserved for control codes, …

    Coding in Assembly doesn't mean you need ... are planning to use this routine in performance critical sections of ... , and others may use this routine in performance critical sections of ... together control codes that another routine will have to analyze first ...
    Einar Saukas Einar Saukas August 2015 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... who read this type off assembly here at WOS. 95-99 ... nice to see that this routine is a kind of "ported ... but the purpose of this routine was to be as small ...
    JamesD JamesD September 2015 Development
  • is there a wire frame version of total eclipse, 3d construction kit, etc?is there a wire frame version of total eclipse, 3d construction kit, etc? this would mean the game would run faster. total eclipse, etc is too slow.

    ... assembler is a border flash routine for the speccy and a ... border flash paper flash routine for the c64
    [/quote ... be much easier in Z80 assembly language on the Spectrum. Good ...
    GReW GReW October 2015 Development
  • Looking for help putting music on a new gameWell I am putting togetehr a new AGD game and i really really really need somebody to help putting an AY tune in it the game has characters taken…

    ... a few calls on assembly. The player routine must be called 50 ...
    zPasi zPasi October 2015 Development
  • Utility to create long REM Line for storing M/C program - Maximum BASIC Line LengthHi, I think there was a Utlity or Toolkit to create a long REM-Line under 48k BASIC to store some MCode in it. So I don´t have to type e.g. 5…

    ... at the start of the assembly source and a CR at ... sure how the ROM list routine would cope with that, and ...
    GReW GReW October 2015 Sinclair Basic
  • Flood FillHi Folks, Can anyone point me to a flood fill that I can call from ZX BASIC? I have looked through the archive and although there are posts about…

    ... the library/SP/Fill.bas routine in the Boriel zx basic ...
    and calling as an assembly language subroutine as it is ...
    dbolli dbolli December 2015 Development
  • Flood FillHi Folks, Can anyone point me to a flood fill that I can call from ZX BASIC? I have looked through the archive and although there are posts about…

    ... contest there at the Z80 Assembly for the ZX Spectrum facebook ... entered the contest with this routine: http://www.zxprojects.com/images ...
    mcleod_ideafix mcleod_ideafix December 2015 Development
  • Compression comparisonsI did some comparisons of different compression methods. To make this relevant to zx spectrum, I first gathered a corpus of relevant data: 6660 .TAP …

    ... with any compressor with z80 routine. For example, with zx7 I ... , or include binary directly from assembly or whatever you use
    routine to decompress the sprite you ...
    Sol_HSA Sol_HSA January 2016 Development
  • Kempston joystick - port MSB value?In a situation where let's say the kempston is being polled like this: LD BC,NN1F: IN A,(C), what is the 'correct' value of NN? 1. 00 2. FF 3. S…

    ... instead of implementing your own routine, why not use JOY? It ... Boriel's ZX BASIC or Assembly programs. It's available [url ...
    Einar Saukas Einar Saukas February 2016 Development
  • Russian-speaking topic - Multiface 3Hi friends! The Administration will not mind if I create a topic in which you can communicate in Russian? No politics. No racism. Speccy only! :-) …

    ... necessary information for the M3 assembly. Is ROM, laid out there ... address of your border change routine into Multiface RAM at $23E8 ... now execute your border change routine, then the game.

    GReW GReW March 2016 Hardware
  • Disappearing/appearing effectI remember doing a small routine in BASIC which could be used to cover the attributes section randomly, until all 704 characters were filled with the…

    ... /> I was looking for the assembly code examples rather than basic ... code anymore.

    My routine above is not really random ...
    FrankT FrankT April 2016 Sinclair Basic
  • Where can I find accurate ROM functions map?Basically so I can avoid reinventing the wheel and just CALL rom if there is function there (for example, $203C, print function) that does exactly wh…

    ... much guarantee that the ROM routine is going to be the ... best way to start learning assembly on the ZX Spectrum is ...
    joefish joefish April 2016 Development
  • Where can I find accurate ROM functions map?Basically so I can avoid reinventing the wheel and just CALL rom if there is function there (for example, $203C, print function) that does exactly wh…

    ... , I found the ROM beeper routine a good one to call ... etc. when I started learning assembly.

    You can just ...
    Morkin Morkin April 2016 Development
  • Function with push and popIm trying to see if I understand push and pop when it comes to using to pass parameters to functions: [code] LD HL,16384 LD A,5 Push AF Ld A…

    ... on screen during a sprite routine, array manipulations that fits in ... /> It you only code in assembly you gain much less with ...
    Timmy Timmy April 2016 Development
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Latest Posts

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