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Search Again :: Adv Search 1000 results in 0.046s
<1234567…34>
  • Is the IY register used by the spectrum rom?Hi I've been writing a sprite routine and have noticed that the sprite data gets corrupted at some points. I have no idea why and can only guess tha…

    ... hold a certain value if interupts are enabled, and if so what is it ...
    dmsmith dmsmith November 2004 Development
  • 48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…

    ...
    The PEEK test to determine if the machine was a 16KB ... address space and is always enabled, the next 16KB from ... chip in the speccy. If this is bad then the ... br />
    Of course if I had enough room on ... there are very few (if any) TTL testers that ...
    Womble Womble August 2010 Hardware
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    ... wrote:
    Interesting, but what if you weren't using BASIC ... crash the Spectrum, but if interupts are enabled it will work fine, but ...
    LCD LCD May 2004 Development
  • FrameSyncIt was many many years ago since i programmed assembly on the spectrum but I just picked it up again for fun. Now this is one thing I can't remember…

    ... always need to have interupts enabled at some point if using halt, otherwise ... would never get past it. If IM 1 is being used ... imediately following HALT.

    If you wanted to have your ... . This is not a problem if for instance your program executes ...
    dmsmith dmsmith August 2005 Development
  • Transferring Spectrum Games onto tape or diskI've been told you can download Spectrum games in .TZX format and transfer them to a specci through the headphone jack. Can you only then save the ga…

    ... it would save time loading if they were on disks rather ... takes up so you can determine if several games can be saved ... one to save games onto if you can't get the ...
    mutantcamel mutantcamel December 2005 Emulators
  • Buying a +3I've been told you can download Spectrum games in .TZX format and transfer them to a specci through the headphone jack. Can you only then save the ga…

    ... it would save time loading if they were on disks rather ... takes up so you can determine if several games can be saved ... one to save games onto if you can't get ... drive for my specci instead? If so how much would one ... one with that snapshot facility? If I can get a + ...
    mutantcamel mutantcamel December 2005 Hardware
  • Regarding older dot-matrix printersLong ago I had the [URL="ftp://ftp.worldofspectrum.org/pub/sinclair/hardware-adverts/ZXLprintIII.jpg"]Lprint III interface[/URL] and I still have (in…

    ... 'll be able to determine if the printer still works and ... or a multiprint interface if the Seikosha printer is ... dot-matrix printer, but if the ink cartridges are ... buying old Deskjets.... And if I want to connect ... control the printer directly, if you know what I ...
    zxbruno zxbruno July 2007 Hardware
  • English gramatics questionEnglish is not my native language (you already noticed). We use talk to other people in plural or singular. When two people for beginning are not fam…

    ... question is how do you determine if you speak to other people ...
    bohusk bohusk July 2008 Chit chat
  • Spectrum +3 suspected memory faultHi, I've been using my +3 for the first time in a while and found that some games have problems with the display becoming corrupted and sometimes cr…

    ... /> Is there a way to determine if the memory is at fault ...
    JohnH JohnH November 2009 Hardware
  • Route Diagram Search Algorithm?With regard to a diagram of the sort of which the picture below is a simple example. Given that routes are restricted to those going down the screen,…

    ... going down the screen, and if I know in advance the ... an algorithm whereby I can determine if a location occurs on a ...
    Battle Bunny Battle Bunny October 2010 Development
  • Spectrum +2a problemsGot two +2a's here, problems on each. 1st one; Works just fine apart from cassette player which does, then doesnt, then does work, it plays ok, spee…

    ... button is pressed seems to determine if the game will load, or ... strangely if the pause button is pressed ...
    Macc Macc January 2011 Hardware
  • Canny use of the 'r' register?Seeing Sokurah's code in the [URL="http://www.worldofspectrum.org/forums/showthread.php?p=583188#post583188"]crunch sound thread[/URL] has made me th…

    ... it cycles irrespective of whether interupts enabled so presumably better than eg ...
    R-Tape R-Tape November 2011 Development
  • Question about 2-channel beeper musicI confess I haven't tried all the available beeper utilities and software. I always found music software confusing and trackers are not for me. I kno…

    ... codes could be used to determine if it stops at the end ... one note in one channel if a note in another channel ...
    zxbruno zxbruno May 2012 Development
  • Upper RAM replacement module issues with the DivideI got my new upper ram replacement module from Zorn yesterday and seem to be having some issues. When the machine is without the Divide it boots up …

    ... but somehow less.

    If I don't use the ... "TI" and "4".

    If someone that also has the ... />
    I'm trying to determine if the module is defective or ... if the Divide attempts DMA to ...
    gtsamour gtsamour September 2013 Hardware
  • How to separate a character from a number in a string?Hi I've been writing a kind of logo type program in BASIC that takes a string a$ from INPUT and then draws according to what you give it. Say you w…

    ... CHR$ so the Speccy can determine if the next character it reads ... how long the number is if I do "u5r10" it will ...
    ivanb303 ivanb303 May 2017 Sinclair Basic
  • Testing an Interface 1As title, is there an easy way on how can I test to see if its functional or not please ? :) Please bear in mind I do not have *any* microdrives n…

    ... can I test to see if its functional or not please ... routine I can try to determine if its alive or not ?
    if needed but if its a short thing ... ' , but I'm not sure if it is meant to do ...
    spider spider July 2018 Hardware
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... ! Two channels might be okay. If you go one channel, you ... +1),hl

    ; 37 -- determine if end of sample and apply ...
    Alcoholics Anonymous Alcoholics Anonymous April 2004 Sinclair Miscellaneous
  • Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…

    ... emulator, but I'm wondering if one of your contacts has ... +1),hl

    ; 32 -- determine if end of sample
    lsbendaddr ...
    Alcoholics Anonymous Alcoholics Anonymous April 2004 Sinclair Miscellaneous
  • InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…

    ... -triggered, not level-triggered: even if the /NMI pin is high ... pin that is sampled to determine if an /NMI occurred.
    Alcoholics Anonymous Alcoholics Anonymous July 2004 Development
  • 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…

    ... write a routine that can determine if an operation results in a ...
    MadDoc MadDoc October 2004 Development
  • Help needed to speed up functionCan anyone help me to re-factor this code snippet. The "MAP" section holds information about which tiles go where on the screen (handled by another f…

    ... "modified" data in "MAP" to determine if the player has fallen off ...
    Mr Millside Mr Millside February 2005 Development
  • Which of these is acceptable FPS for shoot-em-upHi, I want to get peoples opinion as to an acceptable frame update speed for my shoot-em-up game that is in development. At the minute I could do it…

    ... that statement.

    So, if you were to take a ... would the emulator use to determine if it's a .z80 or ...
    Dunny Dunny August 2005 Development
  • Which of these is acceptable FPS for shoot-em-upHi, I want to get peoples opinion as to an acceptable frame update speed for my shoot-em-up game that is in development. At the minute I could do it…

    ... that statement.

    So, if you were to take a ... would the emulator use to determine if it's a .z80 or ...
    rich_chandler rich_chandler August 2005 Development
  • Which of these is acceptable FPS for shoot-em-upHi, I want to get peoples opinion as to an acceptable frame update speed for my shoot-em-up game that is in development. At the minute I could do it…

    ... :23, Dunny wrote:
    So, if you were to take a ... would the emulator use to determine if it's a .z80 or ... have 0x0000 at offset 0x0006. If you give Fuse[1] a ... it knows about are present. If you've given it a ... />
    On the other hand, if you give it a .bz2 ...
    Philip Kendall Philip Kendall August 2005 Development
  • Which of these is acceptable FPS for shoot-em-upHi, I want to get peoples opinion as to an acceptable frame update speed for my shoot-em-up game that is in development. At the minute I could do it…

    ... 23, Dunny wrote:
    So, if you were to take a ... would the emulator use to determine if it's a .z80 or ... have 0x0000 at offset 0x0006. If you give Fuse[1] a ... it knows about are present. If you've given it a ... /> [/quote]

    Yes - but if it was a .sna file ...
    Dunny Dunny August 2005 Development
  • Which of these is acceptable FPS for shoot-em-upHi, I want to get peoples opinion as to an acceptable frame update speed for my shoot-em-up game that is in development. At the minute I could do it…

    [quote]
    So, if you were to take a . ... would the emulator use to determine if it's a .z80 or ... Z80 file and load it. If it doesn't, and the ...
    Metalbrain Metalbrain August 2005 Development
  • Buying a +3I've been told you can download Spectrum games in .TZX format and transfer them to a specci through the headphone jack. Can you only then save the ga…

    ... it would save time loading if they were on disks ... takes up so you can determine if several games can be saved ... for my specci instead? If so how much would one ... one with that snapshot facility? If I can get a + ... but you can get them if you know where to look ...
    DEATH DEATH December 2005 Hardware
  • The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…

    ... might want to test again. If that still doesn't work ... it for anyone else. So if I run out of ideas ... finder is not there to determine if a game exists, it's ...
    Dunny Dunny February 2006 Emulators
<1234567…34>

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