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<1…16171819202122…34>
  • Hi-Res 48K pcb photoany one got a hi-res photo of a speccy pcb, need one for some tattoo work I want to have done on my back I could crack open one of mine, just someon…

    ... to photoshop in a genuine Z80 though because I still haven ... the flying lead from the reset points on the PCB (and ...
    kphair kphair August 2011 Sinclair Miscellaneous
  • PlusD emulation problemAre there any known problems with the plusd.rom file used by emulators? My files keep getting corrupted. Things will be OK for a while, and then I st…

    ... ROM...

    During the Z80 emulator days the advice was ... 48623,0

    to reset the 'open file' counter; failing ...
    Jmk Jmk August 2011 Emulators
  • ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …

    ... soon. ULATEST3 and Floatspy both reset when run. I'm wondering ... between T80se and a real Z80.

    IR-Contention does ...
    JeffB JeffB September 2011 Hardware
  • Amstrad anyone ?I grew with C64 and Speccy, and still use both, but I`m curious about the Amstrad CPC464. So, comparing it to the spectrum only, what is it like ? …

    ... ]Well it certainly had a Z80 for CP/M. How they ... ]

    The two processors (Z80 and 6510) share the bus ... the computer powers on, the Z80 is in charge. If it ... the 6510 back to the Z80 unless you do a hard reset.
    mcleod_ideafix mcleod_ideafix September 2011 Sinclair Miscellaneous
  • Amstrad anyone ?I grew with C64 and Speccy, and still use both, but I`m curious about the Amstrad CPC464. So, comparing it to the spectrum only, what is it like ? …

    ... back to the Z80 unless you do a hard reset.[/QUOTE]
    Mad Fritz Mad Fritz September 2011 Sinclair Miscellaneous
  • Gauging interest: ZX EvolutionHi everyone. First of all I would like to introduce myself, since this is my first post. My name is Conrad, I'm from Vancouver, BC, Canada, and I hav…

    ... !!!!.. It is even stranger to reset the machine and still have ... , but I wonder if the z80 "pure" amoung us would find ... the emulator, I can actually reset the machine and have the ... sound card interfaces with the z80...

    I particularly liked ...
    kgmcneil kgmcneil September 2011 Announcements
  • Gauging interest: ZX EvolutionHi everyone. First of all I would like to introduce myself, since this is my first post. My name is Conrad, I'm from Vancouver, BC, Canada, and I hav…

    ... . The reason why you can reset the machine and still hear ... has it's own 24MHz Z80 and 4MB of RAM on ... . That is why you can reset and still hear the music ...
    TheRogue TheRogue September 2011 Announcements
  • Dead Spectrum SocietySo I'm getting back into real Sinclair computers rather than emulators. During the summer months I was lucky enough to buy a working ZX81 and was giv…

    ... 't panic (yet). Use the reset button (Plus) or short circuit ... button). If after forcing a reset, the border doesn't change ... , it could be that your Z80 is failing, or your ROM ... boot, but then hangs. ULA, Z80 and ROM seemed to be ...
    mcleod_ideafix mcleod_ideafix October 2011 Hardware
  • Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…

    ... 's and more recently a reset glitch hack 360 so I ... managed to find a small Z80 asm routine which fills each ...
    cmonkey cmonkey October 2011 Hardware
  • What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…

    ... signal
    LOWER TRACE: Z80 INT signal
    [img ... to see when the Z80 is actually OUTputing the ... CPU in a permanent reset state by holding pressed ... normal operation between the Z80 and the ROM, suggests ... corresponding buses at the Z80 side (which indeed must ...
    mcleod_ideafix mcleod_ideafix December 2011 Hardware
  • A misbehaving DivIDE 57c (Now repaired)Hello there my fellow WoS'ers Indeed it has been a while since my last post, please let me wish you all a (belated) Happy New Year, my this year bri…

    ... the M1 line of the Z80 in the Spectrums is faulty ... DivIDE firmware pops up during reset, so the 0000h address is ...
    mcleod_ideafix mcleod_ideafix January 2012 Hardware
  • ZX Spectrum TowerHi all, i am working on a ZX Spectrum 48K build in a PC tower case. Is there anyone who did it before? I have some questions duo the PSU. I have to g…

    ... . And it is cooling the Z80 cpu also....

    There ... or give it a hard reset. I dont gonna remove the ...
    Abelientje Abelientje March 2012 Hardware
  • ZX Spectrum TowerHi all, i am working on a ZX Spectrum 48K build in a PC tower case. Is there anyone who did it before? I have some questions duo the PSU. I have to g…

    ... . And it is cooling the Z80 cpu also....

    There ... or give it a hard reset. I dont gonna remove the ...
    bverstee bverstee March 2012 Hardware
  • 48K's and bad DivIDE compatibilityI have had some 48K boards and complete machines in the past which didn't work fully with a DivIDE interface. The reason for that always was a Z80 pr…

    ... , if you are sure the RESET line is not at fault ... you have checked all the Z80 Expansion socket pins for continuities ...
    Zetr0 Zetr0 March 2012 Hardware
  • Bad Reset Line on +3eHello there my fellow WoS'ers, Alas I have not been about much over the last couple of weeks, got hit by the flu, headcold and a rather nasty throa…

    ... think we've discussed the reset circuit on the +3 before ... VERY slow and the reset to the z80 and edge connector is ... our R4 so that the reset line can be pulled all ...
    guesser guesser April 2012 Hardware
  • ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…

    ... (LOAD "") or from snapshot SNA,Z80 on FAT
    4) in ... can be changed)
    7) reset ZX and close TAP file ... COPY[/B] (from TAP,SNA,Z80 or real tape)
    3 ...
    velesoft velesoft May 2012 Announcements
  • What's going on during a reset?Always wanted to know this. Why does the screen fill with garbage then white lines on black then just a totally black screen? What is happening?

    ... . But since you are talking reset. Do any of you know ... the Reset signal on the edge connector to cause the Z80 to ... perform a reset? I really dont ... like the idea of a reset button shorting out a capacitor ...
    Johan1973 Johan1973 May 2012 Hardware
  • What's going on during a reset?Always wanted to know this. Why does the screen fill with garbage then white lines on black then just a totally black screen? What is happening?

    Johan1973:
    The Reset on the edge connector is ... is connected to the reset pin on the Z80 and with a ... circuit ensures that the the reset is held logically low for ... of time during power-up/reset, so the rest of the ... ready for operation before the Z80 starts up.
    Knik Knik May 2012 Hardware
  • What's going on during a reset?Always wanted to know this. Why does the screen fill with garbage then white lines on black then just a totally black screen? What is happening?

    ... ]Johan1973:
    The Reset on the edge connector is ... connected to the reset pin on the Z80 and with a ... ensures that the the reset is held logically low ... time during power-up/reset, so the rest of ... ready for operation before the Z80 starts up.[/QUOTE]
    ...
    Johan1973 Johan1973 May 2012 Hardware
  • AY-3-8912 emulationI am trying to improve the emulation of the AY-3-8912 in FBZX wii. I studied the code of some emulators and read some documents. I would like to be…

    ... value assigned on AY chip reset

    m_noiseVal &= 0x1FFFF ... quality, and some approximations for Z80 frequency, but you will understand ...
    ZXMAK ZXMAK June 2012 Emulators
  • No video in Spectrum 128k +2A Grey[B][COLOR="red"]EDIT: 26-05-2012 = Thread topic edited[/COLOR][/B] Hi everyone, Recently i won a Spectrum 128k +2A Grey at ebay UK. The Spectrum …

    ... />
    With 4 RAMS and Z80 inserted, i take off the ... [/IMG]

    After a reset:

    [IMG]http://i37 ...
    g40rocket g40rocket June 2012 Hardware
  • Wibble[url]http://www.gamasutra.com/view/news/172002/Molyneux_unveils_Curiosity_a_social_experiment_with_77K_inapp_purchase.php[/url]

    ... in the first post. I reset my brain, but on retrying ... paged out, and my neuro-Z80 is randomly processing static, then ...
    ewgf ewgf June 2012 Chit chat
  • Wibble[url]http://www.gamasutra.com/view/news/172002/Molyneux_unveils_Curiosity_a_social_experiment_with_77K_inapp_purchase.php[/url]

    ... in the first post. I reset my brain, but on retrying ... paged out, and my neuro-Z80 is randomly processing static, then ...
    mel the bell mel the bell June 2012 Chit chat
  • Known Z80 M1 problems?I got an email yesterday from someone asking for a Z80 without the M1 problem. I only know about the fanout problem that many Z80's are suffering of…

    ... Spectrum may have a substandard Z80 and be unfit for the ... causes the Spectrum to reset (as NEW or reset button) b) further ... your Spectrum (or rather its Z80) is faulty, you must either ...
    Alcoholics Anonymous Alcoholics Anonymous June 2012 Hardware
  • 48k+ CPU SocketThink I've bitten off more than I can chew... After the desoldering my z80 went without incident, no damaged pads, tracks etc. I expected the socket…

    ... While reading about Soviet era z80 clones, I stumbled on an ... [URL="http://www.z80.info/z80test0.htm"]z80 tester[/URL] based ... on an article on z80.info and first up was ... then hang and would not reset at all, I went ... a mistake in my reset circuit but it was ...
    napoleonblownaparte napoleonblownaparte June 2012 Hardware
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... char *string
    ret ; carry reset for success

    ... char *string
    ret ; carry reset

    hex:
    ... br /> [code]
    ; l_setmem
    ; (z80 library code)
    ;
    ; call ...
    Alcoholics Anonymous Alcoholics Anonymous June 2012 Development
  • Issue 2 Failed 48k to 128k upgradeI have been trying to upgrade my Issue 2 with the help of Velesoft, using this schematic; [IMG]http://i764.photobucket.com/albums/xx284/arioch1973/4…

    ... the machine, and keep the reset button pressed (of if you ... don't have a reset button, keep shorted RESET and GND). Turn ... the computer on, release the reset switch. If the ROM is ... be the ROM, or the Z80, or something is messing with ...
    mcleod_ideafix mcleod_ideafix July 2012 Hardware
  • DooM on Spectrum 128kHello my fellow WoS'ers My hope is that you can help me, recently I discovered a DooM clone -esque on the Humble spectrum, - here is a [URL="https:/…

    ... then save it as a Z80 and use Gerton Lunter's ... .globalnet.co.uk/~jg27paw4/pourri/z80-emulator-dos-utils.zip[/url ... /> 9 - change resolution
    0 - reset
    QAOP - move
    space ...
    Battle Bunny Battle Bunny July 2012 Games
  • Faulty 128K toastrack keeps resettingHi. I have this toastrack which worked nicely for let's say 40 minutes and then a weird fault showed up. It keeps resetting over and over, sometimes…

    ... degrade with time. And the reset circuit is controlled by a ... cap right below the Z80, in between the reset button. I don ...
    pkersey pkersey August 2012 Hardware
<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
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    rich_chandler on April 21
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