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  • Question about ZX Spectrum AY interfacesI got this information from Mike, author of EigthyOne: [QUOTE]128k spectrum 1.7734 MHz Timex 1.764 MHz ZON-X 1.625 MHz Fuller 1.625 MHz QuickSilva 0…

    ... ]Your typical non-sample-based AY chiptune will run off a ... driven tunes in relation to CPU speed. Alvin has some experience ...
    chev chev July 2009 Hardware
  • My annoying computer threadAs i have just purchased my first computer i thought id start a thread where i can ask you all anoying and possibly simple questions. first off ive …

    ... to upgrade the CPU, there's a new CPU socket and memory ... , you've got to replace the motherboard, CPU and all the memory ... card, you have to replace the motherboard, CPU and memory.

    replace that too, either that or ...
    Winston Winston August 2009 Chit chat
  • My annoying computer threadAs i have just purchased my first computer i thought id start a thread where i can ask you all anoying and possibly simple questions. first off ive …

    ... to upgrade the CPU, there's a new CPU socket and memory ... , you've got to replace the motherboard, CPU and all the memory ... supply so you have to replace that too, either that or ... have only ever had to replace on PSU in a PC ...
    The Starglider The Starglider August 2009 Chit chat
  • Two dead SpectrumsHi all, Long time since I posted on here. I'm having a bit of a clear-out, and I've re-discovered two Spectrums I had in the loft : One is an orig…

    ... do is just try and replace them anyway.

    You ... />
    So long as the CPU is working you can build ...
    Winston Winston August 2009 Hardware
  • Has any programmers recently pushed the spectrum to the limits?Hi there. Ive just discovered this great forum and I was brought up with the speccy 16,48 and then 128k. Im just wanting to know if there are any re…

    ... Spectrum but the Z80 & AY-3-891x:

    Back ... /> The routine abuses every single CPU T-state, but has enough ...
    Madonna Mk 2 Madonna Mk 2 August 2009 Development
  • Should I buy a Sam Coupe?Hi folks I been interested with the Sam Coupe since Miles Gordon Technology released the SAM as the successor to the Spectrum. Are their any SAM us…

    ... the slow speed of the CPU, which was really stuck operating ... the memory paging and patching AY sound routines to work via ...
    Quazar Quazar August 2009 Chit chat
  • New BUZZSAW+ Demo, No.2OK everybody, here's the latest demo of [I]Buzzsaw[/I]. This includes the title screen I wrote in Corfu with control selection, some new sprites and…

    ... to draw with use of CPU. Strange was that nobody used ... disable 128K music in 48K. AY music will be then in ...
    Mister Beep Mister Beep August 2009 Development
  • DivIDE QuestionHi all, I've been trying to work out how the DivIDE works and after reading and re-reading the DivIDE programming model document by Zilog I think it…

    ... /> If CPU jump to NMI adress 102(#66) then DivIDE replace low ... /> 1) after press NMI jump CPU to ZX rom at adress ...
    velesoft velesoft August 2009 Development
  • Spectrum +2 datacorderHi, my Spectrum +2 datacorder isn't working. Does anyone know if I can still load software through the tape/sound socket at the back of the machine i…

    ... ULA does not drive the CPU with clock signal. The input ... 't give clock signal for AY-8912 and I made this ...
    Jose_Leandro Jose_Leandro September 2009 Hardware
  • Ahh.. the tape loading era! by ate bit[url]http://www.pouet.net/prod.php?which=53846[/url] It is UNBELIEVABLE!!! Effects while loading, MUSIC while loading (and loading normal speed !!!…

    ... we do complex multi chanel AY music?[/QUOTE]
    There are ... the sampling loop". If you replace that simple delay with something ... pitch envelopes on the three AY channels, and it's multi ...
    evilpaul evilpaul September 2009 Sinclair Miscellaneous
  • Hard Drive queryHello all I am thinking of getting a new Hard Drive and Windows 7 to go with it.What i would like to do,but i don't know if this is feasible is the …

    ... /> virtualbox on a dual core cpu runs a heck of a ... it's a copy and replace away.

    M$ have ...
    Vampyre Vampyre September 2009 Chit chat
  • Plus D and Grey Plus 2Hi, I have two grey Plus 2, both fully working (one of them was "new" when I got it from a technical center stock). I put my Plus D clone on both. …

    So, do I just need to replace the CPU?
    I have another CPU - maybe Sharp or something like this - taken from an Apple II Microsoft CPM card. But is it socketed on the grey +2 or should I desolder it?
    dg67 dg67 September 2009 Hardware
  • What will you be buying yourself for Christmas?Every christmas I treat myself to a new fangled gadget, what will you lot be buying yourselves thris christmas? I been looking at buying one of thes…

    ... new geforce graphics card to replace the 8800GTX[/QUOTE]

    cpu isn't that great, a ...
    Vampyre Vampyre October 2009 Chit chat
  • Amiga or Atari STWhich system did you like the most ??? My person fave was the Amiga as i had loads of fun on it with games like Star Dust, Supr Frog, Speedball 2 an…

    ... doesn't that use up CPU on the ST too? and ... real step up from the AY on 8-bit. The ST ...
    chev chev October 2009 Chit chat
  • Amiga or Atari STWhich system did you like the most ??? My person fave was the Amiga as i had loads of fun on it with games like Star Dust, Supr Frog, Speedball 2 an…

    ... real step up from the AY on 8-bit. The ST ... -game use due to the CPU usage?

    anyways, my ...
    Lee_dC Lee_dC October 2009 Chit chat
  • An idea for a possible(?) new interfaceDue to the Spectrum's processor speed and the way the ULA works, there are a couple things (among others) that are difficult to do: -Gigascreen or a…

    ... . They're not treying to replace the innards of the spectrum ... ULA superfluous and a faster cpu makes the internal z80 superfluous ...
    Alcoholics Anonymous Alcoholics Anonymous October 2009 Hardware
  • AY interface - How many possibilities?Currently the newest AY interface available for sale gives 16K and 48K owners a chance to add AY sound to their Speccy, but (correct me if I'm wrong)…

    Never thought that external AY interfaces use their ... clock slowdown to stop CPU while video controller works ... be used to clock the AY (generated tones will be ... clock rates, the two AY cannot work together with expected ... right from built-in AY, but that's a ...
    Shiru Shiru October 2009 Hardware
  • szx to real spectrum?Hi, I could not find something about this, but is there any tool that can convert the szx snapshots to tap (for example) or any other way to load th…

    ... forgetting some "little" bits like CPU and peripheral state. If you ... all Z80, 128 page and AY registers, etc. and it was ...
    Tom-Cat Tom-Cat October 2009 Sinclair Miscellaneous
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... .[/QUOTE]

    You could replace the 48 ula with an ... upgrade with more memory an ay support. But then the speccy ...
    csmith csmith November 2009 Emulators
  • which one bit of hardware would people want re-made?I'm just curious in the sense of I see interface 1's go for a fair bit on ebay and also multiface units etc.. so whats the one thing that you don't …

    ... .pl/ay48k_demos.html[/url] with AY connected into the twisterboard.
    replace these ROMs. Then supposedly the ...
    Mister Beep Mister Beep November 2009 Hardware
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... a specific chip frequency in AY Emul and VT, so ... has its AY clock set to half its CPU clock. But ... /> 128: Z80@3.5469 MHz, AY@1773450 Hz

    ... SE/Pentagon/TC2068/48+AY: Z80@3.5Mhz, AY@1750000 Hz
    TS2068: Z80@3.528 Mhz, AY@1764000 Hz

    ...
    chev chev November 2009 Development
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... I've seen a reported AY clock of 1764750 Hz for ... would make sense that the AY would be driven by the ... a clock so close to CPU/2 just for this in ...
    Fred Fred November 2009 Development
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    The AY chip is thoroughly documented in ... lists the ts2068's nominal AY frequency as 1764750 Hz and ... is most definitely half the cpu frequency of whatever that is ...
    Alcoholics Anonymous Alcoholics Anonymous November 2009 Development
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... lists the ts2068's nominal AY frequency as 1764750 Hz ... is most definitely half the cpu frequency of whatever that ... by 4 to give a CPU clock of 3.528 ... by 8 to give an AY clock of 1.764MHz). ... base gives a nominal measured CPU clock speed of 3.526812021213907MHz ...
    Fred Fred November 2009 Development
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... , which leads to a nominal cpu clock of 3.528 MHz ... and nominal AY clock of 1.764 MHz ... test, you got a measured cpu speed of 3.526812021213907 MHz ...
    Alcoholics Anonymous Alcoholics Anonymous November 2009 Development
  • zx81 repairare they easy or very tricky to fix, just curious? getting one , that displays but no cursor.. so hopefully I can get parts to fix it. I started off…

    ... : Z80 CPU's are still available, an EPROM can replace a broken ...
    RetroTechie RetroTechie November 2009 Hardware
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... work (and cpu unfortunately) you can make the ay into quite a ... a brief moment while the cpu changes the output volume where ... -bit volume table for its ay chip to play mod music ...
    Alcoholics Anonymous Alcoholics Anonymous December 2009 Development
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... which has a 3.5MHz cpu and 64k RAM. I can ... 12 bits per sample (the ay chip is not up to ... toolkit can take as parameter cpu speed and desired sample frequency ... z80 player and using correct cpu frequency for the tool.
    Alcoholics Anonymous Alcoholics Anonymous December 2009 Development
  • Emulator AY/YM sound chip on AVR (ATMega8,ATmega16,ATmega32,ATmega8515).[url]http://zx.pk.ru/showthread.php?t=10510[/url] Latest version - [url]http://www.vector06c.narod.ru/emul.html[/url] (last link) P.S. Emulator bas…

    ... to hear more about this AY/YM project your working on ... on the webpage about the AY emulation project.

    Please ... , which acts like a replacement AY chip, controlled by the PC ... FPGA development board that can replace the AY chip?... Just curious... ;)
    kgmcneil kgmcneil December 2009 Hardware
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