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  • BIFROST* ENGINE with Spectrum 128K support is out!The BIFROST* ENGINE release 1.1 is finally available, now providing also support for all Spectrum 128 models. You can download it from here: [url]ht…

    ... interrupts during long (possibly undocumented) Assembly instructions... So this is the ... .0 in a BASIC or Assembly program, you must be aware ...
    Einar Saukas Einar Saukas April 2012 Announcements
  • Help pleeease "Proving Emulator OpCode flags are correct"So I had a cunning plan... I wanted to write a test harness for Emulators that could "prove" that all opcode flags were correct. I wanted something m…

    ... every opcode)? Doing this BASIC/Assembly combo for vast number of ...
    Korinel Korinel April 2012 Emulators
  • Hisoft Devpac and the MGT Plus DI've got (potentially) a bit of an odd one here that might cut across a couple of areas so I thought I would put it in misc. I am trying to Hisoft's…

    ... painful way to write in assembly. However, I just have a ...
    maguman21 maguman21 April 2012 Sinclair Miscellaneous
  • Restore HL' to?It is probably a simple question, but it's been escaping me for quite some time now. Is there an 'universal' value you should restore HL' to if your…

    ... restore HL' to if your assembly code uses that [i]and ...
    Hikaru Hikaru May 2012 Development
  • z88dk vs. sdccI've just read this article (in Spanish) [url]http://www.cpcmania.com/index2.asp?urldest=Docs/Programming/SDCC_vs_z88dk_Comparando_tama%F1o_y_velocid…

    ... with the aid of an assembly backend for heavy stuff (i ...
    na_th_an na_th_an May 2012 Development
  • SUPER INPUTA couple days ago I searched for an "INPUT string" routine that I could use in Assembly programs and supported multiple lines, but I found none. Thus…

    ... that I could use in Assembly programs and supported multiple lines ... need to be included in Assembly programs are under 300 bytes ...
    Einar Saukas Einar Saukas June 2012 Development
  • +3e Strange IssueHello there my fellow WoS'ers I am absolutely perplexed by the following problem, I am hoping that someone more enlightened than I can help [I](no…

    ... !!!)[/I]

    The following assembly is tested working / good in ... and CPU and while the assembly works in every other Spectrum ...
    Zetr0 Zetr0 June 2012 Hardware
  • BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …

    In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. Even so, sometimes experienced developers may decide to access BIFROST* internal routines directly, for ...
    Einar Saukas Einar Saukas July 2012 Development
  • New Game: Catacombs of BalachorCurrently in the process of uploading onto WoS... Watch this space..! [IMG]http://i1016.photobucket.com/albums/af288/Thirdharmoniser/catacombs.jpg[/…

    ... a bit of machine code/assembly, with the intention of writing ...
    Morkin Morkin August 2012 Brand new software
  • assembly optimization: times tenDecimal numbers are not computer friendly :) Anyway, short of saying "sod it - I'll multiply by 8" - and another part of the program does indeed div…

    Decimal numbers are not computer friendly :)

    Anyway, short of saying "sod it - I'll multiply by 8" - and another part of the program does indeed divide by 8 by bit shifting....

    Fastest way to do HL = HL x 10 ?

    ...
    Gedlion Gedlion August 2012 Development
  • UDG in AssemblyHow do you create User Definable Graphic and move it around the screen? In C64 its as easy as: [code] SPRITEENABLE = $d015 SPRITEPOINTER = $07f8 =*…

    How do you create User Definable Graphic and move it around the screen? In C64 its as easy as:

    [code]
    SPRITEENABLE = $d015
    SPRITEPOINTER = $07f8

    =* 2000

    Sprite
    !byte $00, $0f, $ff ; ...
    Zxogger Zxogger August 2012 Development
  • Interview with Steve Wetherill (Odin)Hi you all!!! Here is the interview done to STEVE WETHERILL (Nodes of Yesod, Robin of The Wood, Arc of Yesod, Heartland... ?Odin!) and published at […

    ... (on which I learned Z80 assembly language), and the Cyber mainframe ...
    jmvbok jmvbok August 2012 Sinclair Miscellaneous
  • Best books & Sugested reading..Hi i was trying to search the forum but couldnt find it. Looking at WOS there is a number of books on BASIC, programming, machine code ect.. I mess…

    ... typeins for the machin ecode/assembly (when there were such list ...
    WibbleBibble WibbleBibble August 2012 Sinclair Basic
  • Disassembled Rescue by MastertronicHi i am just wondering if anyone has ever disassembled the game Rescue by Mastertronic as i dont know what i am doing because i am trying to learn ho…

    ... am trying to learn Z80 assembly language but it is a ...
    DJFIRTH DJFIRTH August 2012 Development
  • Random number from a rangeHow can I generate in assembly a random number from a range, let's say 0-21 or 0-57? There are generators which make it 0-255. By using bit masks I…

    How can I generate in assembly a random number from a range, let's say 0-21 or 0-57?

    There are generators which make it 0-255.

    By using bit masks I can make it 0-127,0-63,0-31 and so on. But what if my range isn't that "equal"?
    Ralf Ralf September 2012 Development
  • Assembly game programming on ZX how-to?

    pkersey pkersey September 2012 New game ideas
  • How much memory on sprites, maps etc.I've been tinkering with shifting & pre-shifting sprites recently, but as I haven't had that much experience with Z80 assembly I sometimes find it ha…

    ... that much experience with Z80 assembly I sometimes find it hard ...
    Morkin Morkin September 2012 Development
  • Come and Praise hymn bookFor all those UK folk of a certain age, who remembers having this hymn book in Primary School in the early/mid 80s? I went to a CofE school so we alw…

    ... we always had this in assembly. It's good to see ...
    Maroc's Astral Projection Maroc's Astral Projection October 2012 Chit chat
  • ZXDev - powerful environment for development in four languages is ready for testingXDev/ZXDev is open and free set of compilers, additional tools, libraries and design patterns for target platform ZX Spectrum 48K in different progra…

    ... Oberon-2, C, Z80 assembly), based on the Oberon environment ... -DOS image)
    Z80 assembly =>[SDCC]=> ZX Spectrum ... unconditional alternative in low-level assembly language coding. Rather, the ... understood interfaces for libraries in assembly, it?s good to ...
    Oleg N. Cher Oleg N. Cher October 2012 Development
  • UDG in AssemblyHello there my fellow WoS'ers I am currently having a play with z88dk and PASMO and would like to have some fun with some UDG's so is there a tutor…

    Hello there my fellow WoS'ers

    I am currently having a play with z88dk and PASMO and would like to have some fun with some UDG's

    so is there a tutorial about that I have missed?

    cheers for reading =)
    Zetr0 Zetr0 October 2012 Development
  • Machine code RST10 problemHello! After 27 years of playing with Spectrums I'm starting to look into doing assembly language properly. All went swimmingly well until I wrote …

    ... starting to look into doing assembly language properly. All went swimmingly ...
    snigfarp snigfarp November 2012 Development
  • Interview with Clive Townsend (Saboteur)Here you have at [URL="http://www.elmundodelspectrum.com"]www.elmundodelspectrum.com[/URL] this exclusive interview with Clive Townsend. Don?t forget…

    ... Pit. I was still learning assembly language as I wrote it ...
    jmvbok jmvbok December 2012 Sinclair Miscellaneous
  • New years resolutionsI didn't manage to fulfil any of mine this year so I'll carry them over to next year: 1. Complete Lords of Midnight. 2. Learn Assembly Language. 3. …

    I didn't manage to fulfil any of mine this year so I'll carry them over to next year:

    1. Complete Lords of Midnight.
    2. Learn Assembly Language.
    3. Make a game with AGD.
    Rebelstar without a cause Rebelstar without a cause December 2012 Chit chat
  • Gifts from Russia (again)Hey there, zorel from zx-pk.ru is manufacturing PCBs again. Keep in mind you'll have to be good with soldering, as I don't intended to offer assembly…

    ... don't intended to offer assembly services (as I did in ...
    Shockwav3 Shockwav3 January 2013 Sinclair Miscellaneous
  • RexMartijn, Couple of snippets from my Rex article:- The game was originally entitled "Zenith" The Light was a pseudonym for Creative Reality "John An…

    Martijn,
    Couple of snippets from my Rex article:-
    < ...
    jdanddiet jdanddiet February 2013 Infoseek database
  • Getting PC into HLHello, here's a conundrum for you... Is there a way to obtain the value of the PC register (say into HL) without using absolute addressing such as C…

    ... case and not a pure assembly solution.
    BloodBaz BloodBaz February 2013 Sinclair Miscellaneous
  • Commando Start Address?Hello, Since few month i becomes really interested with the speccy where i discovered very good game. And i decided to analyze code of some existi…

    ... like to find an commented assembly file from a .z80 snapshot ...
    youki youki March 2013 Development
  • I thought I'd give assembly a goAnd well being an absolute newb,I'm absolutely useless.I need your help. I thought I'd give this a go in zxspin [url]http://chuntey.wordpress.com/20…

    And well being an absolute newb,I'm absolutely useless.I need your help.

    I thought I'd give this a go in zxspin [url]http://chuntey.wordpress.com/2010/01/12/tutorial-zx-spectrum-machine-code-game-30-minutes/[/url].

    I'm stuck at ...
    bully bully March 2013 Sinclair Basic
  • Wiz-'ard?As my foray through The Fifth Quadrant proved so popular, I thought that I'd have a go at another forgotten game with no playing tips in need of a go…

    ... entries other than a few snippets of news and a handful ...
    Battle Bunny Battle Bunny May 2013 Games
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