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<1…16171819202122…34>
  • Help and Advice with DivIDE PlusHi Guys, Really struggling to get any reliable actiivty with my DivIDE Plus and am looking for some pointers. I am trying to get it to work with on…

    ... 's fix was to replace the Z80 CPU (most likely due to ... I was able to replace my Z80 CPU and now it works ... I guess no need to replace them(?)

    [b]Faulty ...
    BloodBaz BloodBaz September 2010 Hardware
  • ula bookula book is here: [url]http://www.zxdesign.info/book/[/url] can i post sam coupe stuff here - she kind of is a speccy if you stuff the speccy rom i…

    ... one character without burdening the CPU. It can also be used ... pump commands directly to the AY chip. It can process 3 ...
    AndyC AndyC September 2010 Hardware
  • Maximum number of Spectrum devicesHi! What is maximum number of devices i can connect to my rubber key Spectrum? Is there somekind of limit? Now i have Interface 1, Microdrive, Zx p…

    ... to connect a DivIDE+, an AY sound module, and a joystick ... Spectrum.
    You can still replace the 7805 with a 3 ...
    LCD LCD September 2010 Hardware
  • 128 port hardware patchReading the ULA book has reminded me of something. In The Spectrum Hardware Manual (Adrian Dickens) there is a hardware patch to allow free use of al…

    ... as being soldered across the CPU. However, checking Smith: "The issue ... that is to probably instead replace that circuit with:[/quote]
    Jonathan Harston Jonathan Harston September 2010 Hardware
  • JSpeccy new releaseA new version of my Java based ZX Spectrum emulator has been released. The summary of new features is: - 128k/+2 ZX Spectrum emulation - AY-3-8912 …

    ... a hard reset.
    - The AY sound can be configurated to ... />
    It seems that the CPU load is slightly higher, not ...
    Pegaz Pegaz September 2010 Emulators
  • Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…

    ... ISSUE 2 (C) 1987
    CPU: Z0840004PSC 8648
    FDC: Z0765A08PSC ... 8701
    Sound chip: AY-3-8912A GI 8704 CBA ...
    ASM ASM October 2010 Sinclair Miscellaneous
  • Opinion on new 128K only gamesHello, Being new to the WOS community, I am unclear on the attitude towards 128K only software, that is; Is there a strong need to support the 48K m…

    ... and sound FX for the AY-3-8912"

    CPU/Ahim, myself ;) , but ... are beeper, rather than AY based (and actually surprisingly ... probably want to stick to AY, for ingame music)(Beepola: ... has listened anything by CPU or Fatal Snipe, as ...
    kgmcneil kgmcneil October 2010 New game ideas
  • The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …

    ... :

    The main CPU is powerful enough to run ... be accessed directly by the CPU. A system known as ... a time. The Spectrum AY-3-8912 sound chip works ... .

    The second CPU, a 4mhz Zilog Z80 with ... faster version of the Z80 CPU used in the Spectrum ...
    ASM ASM October 2010 Sinclair Miscellaneous
  • Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…

    ... onwards. I also have to replace the x86 software timing loops ... *
    ; *CORRUPTS REGISTER 7 OF AY-3-8912*
    ; *MUST DISABLE ...
    ASM ASM October 2010 Hardware
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... express my code as actual CPU instructions it will work correctly ... compiler in the world can replace the code authoring skills of ... /> To take advantage of a CPU, specific algorithms, register use, memory ... . The code came after the CPU design, it really is the ...
    ASM ASM November 2010 Development
  • Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …

    ... and C64 has the same CPU. Even if the assume that ... />
    Translating SID data to AY is different question. Do you ... by custom PC tool to AY dump. I could say right ... , which has more features than AY in some areas, though with ...
    Shiru Shiru November 2010 Development
  • Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …

    Maybe with a fast enough CPU one could "emulate" the SID itself sampling it to the X bits you can achieve using the 3 AY channels playing samples in real time. This is, a soft-synth.
    na_th_an na_th_an November 2010 Development
  • Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …

    ... the added complication of the cpu's being different.. atari / apple ... / bbc are all the same cpu and the timings

    AY..

    much as david ...
    fog fog November 2010 Development
  • Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …

    The AY emulator on GS was released ... diskzine[/url]. It does not replace actual AY, because there is no ... - ProTracker 3 adapted to the AY emulator. You'll need some ...
    Shiru Shiru November 2010 Development
  • SPRINTER 2000 and kempston joystickInfo about connection kempston joystick connector on Sprinter 2000 are corrected. My previous documentation contain bugs. Here is all OK (tested on r…

    ... ) can't be translated and CPU read value 0.
    - Kempston ... refister to adress 15 or replace instruction IN A,(C) with ...
    velesoft velesoft November 2010 Hardware
  • divide deviceHi, This is first my first post,so hello to you all I first Spectrum 48k was a Xmas present way back in 1983,best gift ever. Then I moved on to a C…

    ... for Joystick interface and/or AY sound card. It also has ... or faulty M1 on Z80 CPU.
    Unfortunately it seesm to ...
    Alien 8 Alien 8 November 2010 Hardware
  • divide deviceHi, This is first my first post,so hello to you all I first Spectrum 48k was a Xmas present way back in 1983,best gift ever. Then I moved on to a C…

    ... for Joystick interface and/or AY sound card.[/QUOTE]
    Yes ... instruction OUT 23,xx send CPU Z80 value xx to data ... incorrect page,system crash and CPU+joystick interface can be destroyed ... destroy device, divide plus or CPU). Way for fix DIVIDE PLUS ...
    velesoft velesoft November 2010 Hardware
  • divide deviceHi, This is first my first post,so hello to you all I first Spectrum 48k was a Xmas present way back in 1983,best gift ever. Then I moved on to a C…

    ... I shouldn't plug my AY sound card onto through connector ... incorrect page,system crash and CPU+joystick interface can be destroyed ... destroy device, divide plus or CPU). Way for fix DIVIDE PLUS ...
    Alien 8 Alien 8 November 2010 Hardware
  • Z80 Based Laptop[url]http://www.retroleum.co.uk/electronics-articles/previous/the-v4z80p-a-z80-based-laptop/[/url]

    ... cycles to slow down CPU in ZX mode. AY is emulated too ... :-)
    Version P has gated CPU clock but usefulness is unknown.
    kpuchatek kpuchatek November 2010 Hardware
  • Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…

    ... . I had it open to replace the keyboard membrane so got ... /> NEC ROM
    Z8400APS/8609 CPU
    FERRANTI ULA7K010E5/8612 ULA ...
    toadstool toadstool November 2010 Sinclair Miscellaneous
  • Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …

    ... logging to avoid emulating the CPU altogether. As there are software ... ? When I was writing an AY player on the c64, being ...
    4mat 4mat November 2010 Development
  • What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3

    ... can be fixed if you replace original chip PAL/HAL10H8 with ... with pin 28 of Z80 CPU (signal /RFSH)
    4) program ...
    velesoft velesoft December 2010 Hardware
  • New game! Crimbo!Hi all, we are very proud to announce our new game: Crimbo - A Gloop Troops Tale. [url]http://www.littleshopofpixels.co.uk/games/crimbo/crimbo.zip[/…

    ... next way for disable snowing..... replace instruction IM 2 in game ... with new instruction IM 1. Ay music will disabled, but game ...
    velesoft velesoft December 2010 Brand new software
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... just wrong approach to use CPU for a work that could ... if you had a separate CPU for graphics then wouldn't ... the Z80 be used to replace the ULA and offer higher ...
    retrogod retrogod December 2010 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... ://en.wikipedia.org/wiki/R800_(CPU[/url])

    Another way ... a RST 28H instruction to replace the ROM calls.
    chev chev December 2010 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... ://en.wikipedia.org/wiki/R800_(CPU[/url])

    Another way ... a RST 28H instruction to replace the ROM calls.[/QUOTE]
    Rebelstar Rebelstar December 2010 Hardware
  • Can a ZX81 be upgraded to a Spectrum?No, I don't want to do this, and I agree that to do so (even if I could) would be a waste of time. The question is, is it possible though? The upgrad…

    ... a key component that drives CPU timmings.

    It would ... putting all the MSX stuff (AY, VDG, PSG, PPI,...) on an ...
    mcleod_ideafix mcleod_ideafix December 2010 Hardware
  • PC in a spectrum 48k bodyHow hard do you think this would be, here i found some one who managed to make one into a linux running pc but im think windows. He used some quite n…

    ... here). And cut down / configured / replace software components in 1001 ways ... /> Windows OTOH requires x86 compatible CPU by definition & in general ... more disk space, RAM & CPU power (and it wouldn't ...
    RetroTechie RetroTechie December 2010 Hardware
  • Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…

    ... this.

    * Real Z80 CPU.
    * All of the "out ... of production" stuff (ULA, AY) in a single FPGA, along ...
    Winston Winston December 2010 Hardware
  • yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…

    ... ROM so that I can replace (extend) original speccy ROM. Here ... . A minor example is saving cpu state. A task manager needs ...
    Alcoholics Anonymous Alcoholics Anonymous January 2011 Development
<1…16171819202122…34>

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