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<1…16171819202122…34>
  • The Register compares Prince Charles to a ZX81This article is the current headline on [url=http://www.theregister.co.uk/]El Reg[/url] at the moment: [url]http://www.theregister.co.uk/2010/11/17/r…

    This article is the current headline on [url=http://www.theregister.co.uk/]El Reg[/url] at the moment:
    [url]http://www.theregister.co.uk/2010/11/17/royal_wedding_it_angle/[/url]

    The cheek of it! :grin:
    BloodBaz BloodBaz November 2010 Chit chat
  • Fast AY PlayerThis is player for ay register dump stream (compiler for PC included). Speed: 980..1067t / 1200..1287t (without pattern change/with pattern change) …

    This is player for ay register dump stream (compiler for PC ...
    tmk79 tmk79 November 2010 Development
  • New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…

    ... compact Z80 code including the register setup, depack and clean up ...
    ASM ASM November 2010 Announcements
  • 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…

    ... byte H
    ld a, (ix+SPR_ypos) ; get y position.

    ld a, (ix+SPR_xpos) ; get x position
    sekrets sekrets December 2010 Development
  • Can anyone invite me to Demonoid?Please can someone invite me to [B]Demonoid.com[/B], as I keep on forgetting to register during the last of each month (the only time you can, I hear…

    ... I keep on forgetting to register during the last of each ...
    ewgf ewgf December 2010 Chit chat
  • A fast DRAW routineI was investigating how to speed up the line drawing for the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=20225"]BASIC compiler[/URL]…

    ... when the H/L register needs to be updated).
    register
    jp __DRAW4_LOOP
    ... ; Saves it in free E register
    jp __DRAW6_LOOP
    ... />
    ;; Puts the A register MASK in (HL)
    __FASTPLOT ...
    boriel boriel December 2010 Development
  • Z80 Processor Interupt helpHi everyone, Currently designing a Z80 computer and i need a little help with these interupts. If i have an I/O device that sends a pulse to the int…

    ... store the infomation into a register and then continues?

    Robin Robin January 2011 Hardware
  • How the spectrum generates the video from ramHi everyon, I know that most people here allready know this but i think i found out how the spectrum acctually dispalys stuff and why the LD x, (HL)…

    ... location. But this involved loading register a and b with the ...
    Robin Robin January 2011 Hardware
  • Help?Hi All, I wonder if anyone has a few minutes to look at this bit of code I'm working on. I'm trying to move to sprites and want to do it with a scr…

    ... sprite
    ld ix,(seed) ;point ix at where we are ... a time
    ld h,(ix+1) ;point hl at ... byte first
    ld l,(ix+0) ;low byte
    ... call goblin
    inc ix ;move ix 2 bytes along for next ... table address line
    inc ix
    djnz loop ;repeat ...
    R-Tape R-Tape January 2011 Development
  • Nice ZX81 30th anniversary article at the register[url]http://www.reghardware.com/2011/03/04/sinclair_zx81_anniversary/[/url]

    [url]http://www.reghardware.com/2011/03/04/sinclair_zx81_anniversary/[/url]
    ADJB ADJB March 2011 Chit chat
  • Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …

    ... pushing registers to the 8 register pair limit, given that there ...
    Gedlion Gedlion March 2011 Development
  • Best way to organise a multi screen game?Hi All, Does anybody know ay good ways to organise large multi screen game? Or any links to useful texts on the matter? In my previous single scr…

    ... far I'm thinking an ix lookup table with x,y ...
    R-Tape R-Tape April 2011 Development
  • quick - Zx80 ASM questionWhile I am ploughing through lots of ASM listings, one of my earlier adaptation attempts surprised me [B][asm code][/B] [code] org 32768 start: ld…

    ... ; spectrum: print the character in register 'A'
    inc hl ; move ...
    Zetr0 Zetr0 May 2011 Development
  • Full Screen Editor/AssemblerIMHO program [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0008187"]Full Screen Editor/Assembler[/URL] should have a "known errors" note as …

    ... of the [B]BIT b,(IX+d)[/B] and [B]BIT ...
    Einar Saukas Einar Saukas May 2011 Infoseek database
  • Using GNU binutils on Mac OS XWinston and CSmith both use binutils for development on Mac OS X. However, Winston uses the gentoo-a-like fink, while CSmith just uses a Linux VM. I …

    ... />
    First you have to register as an Apple developer. This ... ]http://developer.apple.com/programs/register/[/url]

    Then you ...
    chev chev May 2011 Development
  • free pc games[url]http://www.dixonsdownloads.co.uk/[/url] only to the first 10.000 people who register, ive got the first pack.........well when ive downloaded e…

    ... first 10.000 people who register, ive got the first pack ...
    mel the bell mel the bell May 2011 Chit chat
  • File Hosting / Sharing.So my broadband provider has archived my webspace, because its over its bandwidth. I've only got a few images and a few WAV files up. In anycase you …

    ... fill or me having to register. The system must allow me ...
    Scottie_uk Scottie_uk May 2011 Chit chat
  • JSpeccy 0.88.4 releasedA new JSpeccy has been released. The main changes are: [LIST] [*]Resolves a problem in AY emulation code what affects the sound of Retrowork's game …

    ... the mcleod_ideafix latest findings about register contents at cold-start/warm ...
    zx81 zx81 June 2011 Emulators
  • PS3 - 5 Vantammen - 0As some may remember, I've been having troubles with my ps3 since January... it all started while playing Resi 5 and the Blue Ray driver stopped read…

    ... he's only allowed to register my malfunction and if I ...
    VanTammen VanTammen June 2011 Chit chat
  • Rambo (improved BUGFIX)An improved BUGFIX was provided for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0004010"]Rambo[/URL], please replace the "known error…

    ... LDIR after setting only C register instead of BC, as follows ...
    Einar Saukas Einar Saukas June 2011 Infoseek database
  • Cobra (improved BUGFIX)This is an improved BUGFIX for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000996"]Cobra[/URL], please replace the "known errors" de…

    ...
    9602: in a,($ff) ; register 'A' always set to $FF ...
    Einar Saukas Einar Saukas June 2011 Infoseek database
  • binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…

    ... around the old optional "a" register issue, but I'm stumped ...
    dom dom June 2011 Development
  • Saving and Loading from tape in MC?I'm actually having problems with saving and loading from the ROM routines for the interpreter... I'm currently using the following codes for saving…

    ... />
    [CODE]save:
    ld ix, _tape_header
    ld hl, _save_state ... /> ld a, 0
    ld ix, _tape_header
    ld de, 17 ...
    Timmy Timmy July 2011 Development
  • Manic Miner review and WOS mention on the register[url]http://www.reghardware.com/2011/07/07/antique_code_show_manic_miner_game/[/url] Interesting address for the ftp "mirror".

    [url]http://www.reghardware.com/2011/07/07/antique_code_show_manic_miner_game/[/url]


    Interesting address for the ftp "mirror".
    ADJB ADJB July 2011 Chit chat
  • [MOD] R-Type IIII suppose it makes sense now to register [URL="http://www.worldofspectrum.org/forums/showpost.php?p=401659&postcount=15"]R-Type III[/URL] back in the…

    I suppose it makes sense now to register [URL="http://www.worldofspectrum.org/forums/showpost.php?p=401659&postcount=15"]R-Type III[/URL] back in the archive as a mod...
    Einar Saukas Einar Saukas August 2011 Infoseek database
  • automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …

    ... the value in the PC register. I eventually remembered that a ... variable location, either to a register or a location addressed by ... a register; there's "LD SP,HL ...
    Battle Bunny Battle Bunny August 2011 Development
  • Region locking PC games? Deus Ex: HR is to be region locked!One of the good things about PC games is that they aren't region locked, unlike [B]many[/B] console games (lots of consoles have great games that wil…

    ... might not be able to register the game.
    If you ... should not be able to register your copy due to a ...
    ewgf ewgf August 2011 Chit chat
  • machine code loadercan someone have a look at this loader and break down what its actually doing and also how i can stop it from executing the 2 loads of headerless blo…

    ... NZ,5B11
    5B1A LD IX,4000
    5B1E LD DE ... NC,5B1A
    5B29 LD IX,5CB6
    5B2D LD DE ...
    djgarf djgarf August 2011 Sinclair Miscellaneous
  • My z80 computer nearly thereI have nearly built my own one :D Below is the 3D look of it made using eagle 3D (it takes the PCB and makes it look awesomefied) [URL=http://uplo…

    ... as uarts + LCD displays have register selects and require two ports ...
    Robin Robin September 2011 Chit chat
<1…16171819202122…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

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