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Search Again :: Adv Search 1000 results in 0.076s
<1…16171819202122…34>
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... some of the data stored in the screen area but it ... read somewhere about if1 serial port may be damaged by PC ... 'll be using good old ear socket to transfer the files ...
    Arda Arda November 2010 Sinclair Miscellaneous
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... somewhere about if1 serial port may be damaged ... be using good old ear socket to transfer ... models. WOS members step in please!

    EDIT:

    In reality, finding about 1024 BYTES ... decompression code could sit in the stack area... nightmare ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…

    ... of the Nyquist theorem... in simple terms, sampling rates ... desired frequency. The human ear has trouble distinguishing frequencies above ... visual representations of analog signals in 'time domain' by ... zero). The Spectrum mic port cannot represent zero, only ...
    ASM ASM November 2010 Sinclair Miscellaneous
  • Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…

    ... =Arjun;492579]The Ear bit is bit 4 in 0xfe. The mic ... you're sampling bit 6 in the above code.[/QUOTE]< ... ; bit 6 of IN-port FE is the EAR input bit, as ... 11 00 00
    L_7F5E: IN A, ($FE) ; 7F5E DB ... use for the returned value in BC), so the loop ...
    Battle Bunny Battle Bunny November 2010 Sinclair Miscellaneous
  • Oscilloscope Speccy ProgramHi all, I remember very well in the old days when my Speccy was my single computer (around 1992) that I have had an oscilloscope software. This uses…

    ... ; bit 6 of IN-port FE is the EAR input bit, as I ...
    Arjun Arjun November 2010 Sinclair Miscellaneous
  • Found an old project of mine today[url]http://i1210.photobucket.com/albums/cc418/reanimator1971/DSCF1382.jpg[/url] i started this about 6 years ago and found it after sorting through …

    ... , it also has a Line in as well for sound mixing ... (connected to either IDE or EAR)
    5. 3.5" FDD ... and SpectraNet - perhaps internal or in a really sympatheticly designed box ... . Add a "K-Mouse" mouse port

    There that should ...
    Zetr0 Zetr0 March 2011 Hardware
  • Maglaxians in the java emulatorWhen I try to play Maglaxians in the archive using the online Java emulator, I can't get the game to start, when I press ENTER. Does anyone else exp…

    ... the port $fe and not masking off the ear bit.< ... four places in the game code where the port is read ... a patched version working in my own local copy ... The keyboard reading routines in this game are a bit ... that after all these years! In any case, "training mode" ...
    Digital Prawn Digital Prawn April 2011 Games
  • Code Masters CD on ebay[url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=330553816486&ssPageName=ADME:X:BOCOR:GB:1123[/url] He's selling it for ? 99.99 but accepts …

    ... is using a kempston stuck in the back of the machine ... into the +2A's joystick port. I guess whether using a ... would depend on the interface in question, but I seem to ... the signal obtained from the ear socket would be too dirty ...
    zub zub May 2011 Sales
  • New speccy modelThe 48k toastrack ;) [img]http://alistairtesting.no-ip.org/48k-toastrack.jpg[/img]

    ... mic/ear ports, they're on the side by the rs232 port ... on the 128k. I'm not sure if the RGB port ... is in the same place as the 48k's mic/ear ...
    guesser guesser May 2011 Hardware
  • Challenge Sprint 4x tape recorderHi, I noticed a [url="http://www.worldofspectrum.org/infoseekid.cgi?id=1000051"]Challenge Sprint[/url] on eBay, and checked out the WoS entry for it…

    ... fail.

    I'm in the process of adapting the ... rom to use the standard EAR/MIC port. For SAVE I think ... record to WAV" option present in Spectaculator, I've succesfully recorded ... on with the loading noise. In fact, I first titled my ...
    mcleod_ideafix mcleod_ideafix August 2011 Hardware
  • Challenge Sprint 4x tape recorderHi, I noticed a [url="http://www.worldofspectrum.org/infoseekid.cgi?id=1000051"]Challenge Sprint[/url] on eBay, and checked out the WoS entry for it…

    ... port FFh is not the current state of the "EAR" input, as in ... code, I think that port FFh offers two things: ... 0. The routine reads port FFh, stores bit 0 ... of bit 0 read in the previous IN
    ;operation, ... routine changing the FFh port by the FEh port.

    mcleod_ideafix mcleod_ideafix August 2011 Hardware
  • The SAM CoupeDoes anyone own one of these? I remember being jealous of a friend who bought one of these machines which had a disk that made the system compatible …

    ... ear) and "attribute" port #FF use same adress as on ZX models :) In ... 16kB and active write protect in low 16kB for rom ... connect, then enable memory paging in high 16kB of adress space ... ZX128 models, only use different port numbers). Some 128kB games can ...
    velesoft velesoft November 2011 Hardware
  • What spectrum?I am going to have a gent send me some Spectrum hardware in the future. Me being a american and knowing nothing of the sort, what would be the best o…

    ... multinorm TV set (fiarly common in Europe, don't know if ... plenty of documentation lying around in this and other speccy forums ... software, including those that use port $FF and things like that ... -220V transformer.
    - It has EAR and MIC connectors, so you ...
    mcleod_ideafix mcleod_ideafix December 2011 Hardware
  • The Sinclair ZX Microdrive Resurrection Project (long)Dear Spectrum fans! [Management summary: Download [url]http://www.bartheld.net/temp/mdv2img.zip[/url] and tell me what you think. All help very much…

    ... /> [QUOTE=Andrew Barker;607993]
    In the past I've reconstructed ... acceptable level).

    Tape (EAR/MIC) was far too slow ... and get going.

    In fact, the most complicated thing ... and my Thinkpad T30 (COM port, yeah!) to transfer the product ...
    Volker Volker March 2012 Emulators
  • Interface I and the "net" LANRegarding Chapter 7: [URL="ftp://ftp.worldofspectrum.org/pub/sinclair/books/MicrodriveAndInterface1Manual.pdf"]IF1 Manual[/URL] With Interface 1 mos…

    ... cable similar to the traditional ear / mic cables?
    [/QUOTE]
    port to a PC?

    The details are all in this book: [url]http://www ... pondered building one that plugs in to USB on the PC ...
    guesser guesser March 2012 Sinclair Miscellaneous
  • Another BUG play tapes, in ALL EMULATORs when press STOP1 FOR n=1 TO 20 : PRINT IN 254 : NEXT n : PRINT AT 0,0 : GOTO 1 RUN Type this simple code, load a TZX, pres PLAY, when ear input change between 191 …

    ...
    [QUOTE=Arjun;613826]In particular:
    "If output is ... Bit 6 of IN-Port 0xfe is the EAR input bit. ... The value read from this port ... [COLOR="Red"]and have no EAR input[/COLOR].

    port #FE in this case, not OUT ...
    Z80user Z80user March 2012 Emulators
  • Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…

    ... There is a small mistake in the routing (my fault). ... tristate buffer from putting EAR and keyboard data on ... on every read, including port FEh reads! so it ... This cut should be made in the component side ("cara ... point (again, cyan arrow) in the solder side too. ...
    mcleod_ideafix mcleod_ideafix April 2012 Hardware
  • (mini)monitor for speccy?hey guys, need a tip or hint for a mini monitor - which to use with Speccy? brand/type/parametres? preferably cheap solutions and where to get them. …

    ... , membranes and faceplates being produced in 2012, a laptop that feels ... battery life, ear and mic outputs, IF1-compatible serial port, wi-fi ...
    zxbruno zxbruno April 2012 Hardware
  • Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…

    ... remember it was something about port 254. :)[/quote]

    More ... the Timexen decouple MIC and EAR, whereas the ULA machines join ... sued Microdigital for copyright infringement in the Brasilian courts and lost ... reason Apple now makes iPhones in Brasil).
    chev chev May 2012 Emulators
  • Sending key presses to the spectrumfor a project I want to send automated keyboard presses to the ZX via a micro-controller. Is it possible to send these through the expansion slot? …

    It's in essence, what the PS/ ... interface connected to the rear port, but be warned: this ... from the keyboard and/or EAR), your interrupt routine will ... some latency)

    In this interrupt routine you will ... it is still 0, continue in the loop. As soon ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • 128k +2 (grey) Ear mod - New ULA and still problemsBverstee kindly sold me a 128K ula since the one in my +2 seemed to have a broken ear in. But even with the new ULA, I still can not load games throu…

    I see a fault in the schematic, wait, I will ... : I have fixed the problem in the schematic and given R5 ... add; V+ is input from EAR input port, and V- is output ...
    Johan1973 Johan1973 August 2012 Hardware
  • 128k +2 (grey) Ear mod - New ULA and still problemsBverstee kindly sold me a 128K ula since the one in my +2 seemed to have a broken ear in. But even with the new ULA, I still can not load games throu…

    ... ;649189]I see a fault in the schematic, wait, I ... I have fixed the problem in the schematic and given R5 ... add; V+ is input from EAR input port, and V- is output ... is a pnp type. In that case the emitter has ... think about adding a capacitor in series to the input. ...
    ingo ingo August 2012 Hardware
  • 128k +2 (grey) Ear mod - New ULA and still problemsBverstee kindly sold me a 128K ula since the one in my +2 seemed to have a broken ear in. But even with the new ULA, I still can not load games throu…

    Robocop loaded with no problem once I made a .wav with tapir :)

    (Note: I will get an LM324 and repair my datacorder, just to have complete system. And keep this circuit as the EAR in port).
    Johan1973 Johan1973 September 2012 Hardware
  • TKMEM - the 128K interface for 16K SpectrumsHello all! Here in Brazil, we have made a small production of an interface, totally based on Velesoft?s memory expansion ([url]http://velesoft.speccy…

    ... that there's a 'bug' in port $FE — updating the 'MIC ... doesn't affect the 'EAR' bit when there's ... playing, but rather the EAR bit reverts to a ... when neither memory or port I/O is being ... /> [*] The behaviour of IN from an unattached port ('floating bus').
    ...
    zub zub January 2013 Hardware
  • Folks with real speccies - test this!A lad from another forum has written a music demo for the Speccy, but he can only test it on ZXSpin, so needs some helpful chaps to record this to ta…

    ... probably be disinclined to lead in an extension cable and rummage ... always done it via cassette in the past. When the Speccy ... out of the loudspeaker port to the EAR socket, I suppose ... ... unsettled by that unwarranted 'p' in Lambton Worm ...

    ...< ...
    Battle Bunny Battle Bunny February 2013 Sinclair Miscellaneous
  • Timex 2048 + Interface 2When playing with ZXC3 cartridge (very nice piece of HW from Paul - highly recommended), I connected original Sinclair IF2 to TC2048 and... no joysti…

    ... , because the internal hardware steps in and responds if you try ... from address 254 ('IN $FE') for the keyboard or EAR/MIC. But ... A0 going low on a port read, meaning all even addresses ... then read it by 'IN $EF' instead of 'IN $FE'. But it ...
    joefish joefish May 2013 Hardware
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... ld a,0x7f ; read port 0x7ffe
    in a,(0xfe)
    ... ; e: bitmask for reading EAR
    and e ; ... look at EAR bit
    cp d ; ...
    stephenw32768 stephenw32768 August 2013 Development
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... port 0x7ffe
    in a,(0xfe)
    and 0x41 ; look only at EAR ... border ; put border colour in accumulator
    or 8 ... ; rotate the new bit in from carry; if
    ...
    stephenw32768 stephenw32768 August 2013 Development
  • Writing to MIC portSo I had a new crazy idea: How about a stereo beeper engine? Since we can set bit 3 on port $fe to output to MIC, writing such an engine should be ra…

    On Timex EAR is input, so writing to it gives no sound. At least as I remember.
    If ZX is able to mix eight channels, than external port can be used (4 bit / channel in stereo )
    kpuchatek kpuchatek August 2013 Development
<1…16171819202122…34>

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