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<1…18192021222324…34>
  • AY-3-8912 help !Hi all. Happy new yeay. I'm new to spectrum programming, and am interested in writing some music for the +2 AY chip. The problem is...I cant find …

    ... only really updates when a register is in need of changing ... also did this to good effect with the help of DMA ... / put data to that AY register.

    The TS2068 technical ...
    Alcoholics Anonymous Alcoholics Anonymous January 2004 Development
  • Another Z80 processor questionOK, this time this isn't clearly covered in the FAQ, as far as I can see.... Suppose we have the CB instruction "SET b,r" (b=bit, r=register (differ…

    ... this refers to the WZ register. It has a pair, ... tested and that this register seems to be affected ...
    LD r,r': no effect

    The latter three ... .txt[/url] operate on this register ?....

    Question #2: ...
    GOC GOC July 2004 Development
  • RGB values for Spectrum colorsDoes anybody know the true rgb color values for the spectrums 15 colors. I'll assume that black is 0,0,0 White is probably 255,255,255 But what are t…

    ... once (apart from maybe in Crash) but it`s weird.. nice ... and you can see the effect better.

    So the ...
    Sadako Sadako August 2004 Development
  • What does SPIN have?I have been asking this question since somebody answered another I had made that RealSpectrum was a brilliant emulator. It is in fact. But... I see e…

    ... Woody when I had some crash issues and 100% times they ... /> I use Spectaculator and will register as soon as I'm ...
    Sabre Sabre September 2004 Emulators
  • Computer wizards : Please educate me.............Ive never been much of a computer wizard, and im the type that rather than go figure things out for himself, would rather just ask other people who k…

    ... files.

    Could that effect things?
    [/quote]

    register it :-)

    D ...
    Dunny Dunny September 2004 Sinclair Miscellaneous
  • I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…

    ... dealing with instructions where the register value would really be more ... bits, or half of a register pair - but you'll still ... ingenuity to achieve the equivalent effect in that less-ideal representation ...
    gasman gasman September 2004 Development
  • Smooth Screen ScrollingHi Everyone, Any suggestions on what is the best way to do horizontal scrolling ie. in Zynaps fashion. I am working on a routine at the moment, whi…

    ... 16-bit register when we can achieve the same effect by decrementing ... an 8-bit register as the h register will ... only change if the l register is zero prior to doing ...
    jonathan jonathan September 2004 Development
  • Profanities in speccy text adventures[url="http://www.monkeon.co.uk/swearadventure/"]http://www.monkeon.co.uk/swearadventure/[/url] "A nostalgic look at what used to happen when you tri…

    ... I remember a review in Crash where it was mentioned that ... surely?) would have the same effect!
    darkman darkman November 2004 Sinclair Miscellaneous
  • Troll AlertHere we go again?

    ... entered is both incriminating and effect our direct
    > privacy ... should be on the electoral register, after all.

    You ...
    Dunny Dunny November 2004 Sinclair Miscellaneous
  • InterruptsCan someone help with providing some info or a link about IM 2. I know I need to create a vector table and want to store this as high in memory as po…

    ... is combined with the I register (I in top 8 bits ... models will show a 'snowing' effect on the display. This is ...
    Alcoholics Anonymous Alcoholics Anonymous February 2005 Development
  • EU approve software patent billSo it's done Now, even the use of Linux or OpenOffice may be illegal in the European Union. It will be discussed at the parliament, Microsoft says i…

    ... most inaccurate descriptions of the effect this measure (the Computer Implemented ... />
    What the [url="http://register.consilium.eu.int/pdf/en ...
    Philip Kendall Philip Kendall March 2005 Sinclair Miscellaneous
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    This is what I've compiled so far:

    [quote]Resources
    =========

    * Make all caps
    ---------------

    You can turn CAPS LOCK on or off using a simple poke to 23658:

    POKE 23658,8: REM CAPS ON
    ...
    na_th_an na_th_an April 2005 Development
  • The incredible shrinking screendumpIn this topic I stated that I would be impressed if the screendump could be smaller than 37 bytes. [url="http://www.worldofspectrum.org/forums/viewt…

    ... /> [/code]

    The C register is only increased 7 times ... "LD B,D" and in effect the first seems redundant.
    This will probably not effect your print.

    You ...
    Dr BEEP Dr BEEP August 2005 Development
  • Necessary +2A ROMsA +3 has 4 roms: Menu/Editor Syntax Checker +3DOS 48k BASIC I understand that a +2A is identical to a +3 but without a disk drive. It also uses …

    ... "rain" (or "ula snow" as some call it) effect that you get ...
    Tom-Cat Tom-Cat August 2005 Sinclair Miscellaneous
  • Bug in EMUZWINIt's quite minor actually and is in the Assembler. Ocassionally when assembling the ASM gives the wrong address to a label. For instance I used the l…

    ... running could crash the emulator, fixed too.
    [+] Very special effect added ... slower for a time). This effect allows to eliminate this behavior ... is reserved for turning this effect on/off.

    Also ...
    Vladimir Kladov Vladimir Kladov November 2005 Emulators
  • ZX ShedNow that issue 2 is out and it's fairly obvious it's been a great success, we have to start considering issue 3. Thanks in part to the quality of wri…

    ... fan of the reviewing system Crash(?) used - A main review and ... it for excatly the correct effect.

    You come along ...
    ADJB ADJB December 2005 Sinclair Miscellaneous
  • be happy 2006small gift from Triumph games lab [url="http://scenergy.natm.ru/files/behappy2006.zip"]http://scenergy.natm.ru/files/behappy2006.zip[/url]

    ... Dunny wrote:
    Yes, the Snow would become a blizzard on ... repaired model).

    The "snow" is tremendous. The top third ... the screen contains all the snow (fairly intense), while parts ... Spectrum had a HW scroll register.

    The first ...
    Jmk Jmk January 2006 Sinclair Miscellaneous
  • Top tip 13Cover your driveway in rice krispies, so when you walk across it, it gives you that gravel sound, but without the cost. [ This Message was edited by…

    And then, to get the effect of snow, wait for it to rain, then hear them squelch!
    The Starglider The Starglider January 2006 Chit chat
  • Your First PostI was looking at some of my early postings to the forum, which occurred way back in the mists of time (or, more precisely 22nd October 2002). My firs…

    Got no idea what my first post was and when. All I know was that it was before 'the great server crash' back in 2002 when we all had to re-register.
    rich_chandler rich_chandler February 2006 Chit chat
  • Your First PostI was looking at some of my early postings to the forum, which occurred way back in the mists of time (or, more precisely 22nd October 2002). My firs…

    ... server crash' back in 2002 when we all had to re-register ...
    mel the bell mel the bell February 2006 Chit chat
  • Your First PostI was looking at some of my early postings to the forum, which occurred way back in the mists of time (or, more precisely 22nd October 2002). My firs…

    ... server crash' back in 2002 when we all had to re-register ...
    rich_chandler rich_chandler February 2006 Chit chat
  • Your First PostI was looking at some of my early postings to the forum, which occurred way back in the mists of time (or, more precisely 22nd October 2002). My firs…

    ... server crash' back in 2002 when we all had to re-register ... 't recall having to re-register myself on either account...
    mheide mheide February 2006 Chit chat
  • Your First PostI was looking at some of my early postings to the forum, which occurred way back in the mists of time (or, more precisely 22nd October 2002). My firs…

    ... server crash' back in 2002 when we all had to re-register ... 't recall having to re-register myself on either account...
    rich_chandler rich_chandler February 2006 Chit chat
  • Werewolves of LondonUsed to play this a bit years ago but never was any good at it and couldn't work out what any items did or how not to die before too long but waiting…

    ... just before the crash - it looks like the crash may already be ... a DJNZ (ie does B register = 1, If yes then decrement ... loop isnt touching the B register at all, all its doing ... until it gets to the register count in the image. After ...
    Womble Womble March 2006 Games
  • Codies help? Werewolves of LondonHi All, never one for shying away from the deep end, having only just dipped my toe in to the world of machine code I find myself trying to find out …

    ... and very, very likely to crash the system as that involves ... would cause many Spectrums to crash depending on what hw was ... the contents of the I register and state of interrupts (which ...
    Alcoholics Anonymous Alcoholics Anonymous March 2006 Sinclair Basic
  • unused assembler commands?Z80 processor has commands like OUTI OUTD OTIR OTDR INI IND INIR INDR.They deal with sending /reading bolcks ofinformation to ports. The problem is, …

    ... in the code outputs the register number on port $fffd, then ... has the effect of pointing HL to the next register value. Then ...
    icabod icabod March 2006 Development
  • Unpublished spectrum gameHi there I have a Spectrum PDS development environment and before I get rid of my old PC which has an ISA slot I thought I should ask this question i…

    ... RAM space -- this will certainly crash the emulated Spectrum on loading ... info (location of stack, pc, register contentsm, etc). If you know ...
    Alcoholics Anonymous Alcoholics Anonymous March 2006 Games
  • MEMPTR finally crackedThis post is mainly for emulator developers. As you may be well know there is a misterious internal register in Z80 CPU (MEMPTR) which value is set …

    ... there is a misterious internal register in Z80 CPU (MEMPTR) which ... and 5 of the Flags register after the instruction BIT n ... do it. Now this MEMPTR register is totally cracked in result ... if this is the same register which is known as WZ ... ie. if EXX has an effect.
    The President The President April 2006 Emulators
  • Best version of The Sentinel?Which version of The Sentinel is the best? I have tried the Spectrum, CPC, PC, ST and C64 versions, and of them I still prefer the Spectrum version. …

    ... post, but that didn't register. I must be getting senile ... this afternoon, and the fading effect is there, just as beautiful ... work very well here, the effect is almost hypnotic.

    ewgf ewgf April 2006 Games
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