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<1…16171819202122…34>
  • Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…

    ... /> [/quote]
    I am [i]so[/i] not made for this ... . #:-S

    As for I/O contention, the +2A/+3 applies ... least in theory, all I/O access on these machines is ... high byte of the port on the 128K still ... t change anything, but I suspect it might have ...
    Ast_A_Moore Ast_A_Moore July 2018 Assembler
  • Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…

    ... stuff up.

    Contended I/O:
    On the Sinclair models ... pattern is decided by the port number. This page https://faqwiki ... Contended_I/O provides a table to describe these patterns. For port #FE ... C:3" depending on the port MSB. In the first case ...
    Hikaru Hikaru July 2018 Assembler
  • If Sinclair computers had not been sold...I was just having a random thought. If Sinclair Computers (or the rights to them, not sure how it 'worked' back then) had not been sold to Amstrad…

    ... and documented the memory and I/O allocations.

    So ... keyboard, 80k RAM, cartridge port, built in joystick port, reset button, power ... chip plus parallel printer / user port, upgraded ROM)
    [*]ZX ... a mouse port and also with a I/F port for an ...
    1024MAK 1024MAK February 2019 Hardware
  • A Yankee in IraqI'm testing the game on the zx next and it currently hangs right after the game starts no matter what timing regimen and contention pattern is chosen…

    ... extra i/o contention caused by the loop reading from port 0x40ff is ... be missed in the port read. If I change the loop to ... read from port 0x00ff to avoid the i/o contention, the game ... runs. So I will have ...
    Alcoholics Anonymous Alcoholics Anonymous February 2019 Development
  • +2 midi/rs232/keypad connectors, what can be done with that?where from can we find more information about what can be done with +2 midi/rs232/keypad connectors? - about midi, for example, can we do similar thi…

    ... !

    For the port A I/O pins, yes decimal 14 is ... of information ;-)

    [b][i]Mark[/i][/b]
    1024MAK 1024MAK November 2019 Hardware
  • RS232 - built-in vs. Interface 1Hello all. After some advice, and I figured someone here would probably be able to help. I'm the owner of a (grey case) Spectrum +2, and I'm keen …

    ... proper hardware flow control.
    I wasted a lot of time ... PC because I foolishly assumed that the on board serial port would ... .
    Turns out the super I/O chips on "modern" PC motherboards ... bursts at the programmed baudrate. I swapped to a USB adapter ...
    guesser guesser May 2020 Hardware
  • RS232 - built-in vs. Interface 1Hello all. After some advice, and I figured someone here would probably be able to help. I'm the owner of a (grey case) Spectrum +2, and I'm keen …

    ... proper hardware flow control.
    I wasted a lot of time ... PC because I foolishly assumed that the on board serial port would ... .
    Turns out the super I/O chips on "modern" PC motherboards ... bursts at the programmed baudrate. I swapped to a USB adapter ...
    Journeyman Journeyman May 2020 Hardware
  • Were the full Sinclair Loki specs ever actually known?I was just curious. A lot was leaked to the media, but the exact specs seem different depending on source. Some say it could support up to 512x256 an…

    ... to override the faulty I/O contention circuitry. They did ... a problem with the I/O circuitry. Hence the transistor ... was being designed. Well, I say designed. A better ... use the RS232 serial port, after every byte the ... generated on the RS232 port line. This is a ...
    1024MAK 1024MAK August 2021 Hardware
  • More "What could have been"... The Z280.So in chasing up the Loki specs, I happened upon some parallel developments... And had Sinclair gotten to make the Loki, there could have been some i…

    ... large port ranges making it impossible to assign non-conflicting i/o ... supporting those peripherals and contain i/o reads/writes to those ... Spectrum Next, the hardware hides i/o cycles by holding /iorq ... respond to an i/o cycle. This way if i/o is intended ...
    Alcoholics Anonymous Alcoholics Anonymous October 2021 Hardware
  • is a arduino uno / nano fast enough to talk to a specie ?my current project is to load games onto the specie via SD card / Arduino uno / nano although i suspect that the micro controller will not be able to…

    ... pi would be another option, i am only using the standard ... me) but am using the port function rather than digital Write ... monitoring MREQ as i am going in through the I/O so using ... IORQ. did i understand you correctly ...
    mark8bit mark8bit April 2022 Hardware
  • ? M3732-20RS ?I have eight chips of memory from my old zx spectrum 16k. I?d need to know the pins description of them to use it. The text on the chip is: …

    I have eight chips of memory ... my old zx spectrum 16k. I?d need to know the ... of this chip (power, data I/O, clock signal, etc...)

    i be able to find it ...
    Gento Gento June 2001 Sinclair Miscellaneous
  • NEW INTERFACE FOR ZX SPECTRUM!!Hi all zx-maniax! Here is a letter from Polish inventor, Yarek Adamski. He constructed a new brilliant interface for ZX SPECTRUM. Ready carrefuly i…

    ... Hello Spectrum User!

    I've just finished first tests ...
    To simplify following description I mention that in YABUS
    I/O card).
    - YAMOD.AY - ... mouse connected to this module (I know, I have
    prototipe ...
    Yerz Yerz July 2003 Sinclair Miscellaneous
  • Deduggers in emulatorsI've used several emulators with build-in debuggers, and now I want to share my opinion. Debugger in Spectaculator 6.0 is great! The interface is nic…

    ... location, very usefull. But I don't understand how it ... depends on start address. I like information about Z80 registers ... it lucks some information about I/O ports, 128k memory pages.
    I/O ports and stack info.
    kmatveev kmatveev February 2004 Emulators
  • I/OHas anyone found an emulator that can

    Has anyone found an emulator that can
    dalmudlee dalmudlee May 2004 Emulators
  • BooksGot the following to get rid of, if anyone wants them. The ZX81 Companion / Bob Maunder Beyond simple BASIC, Delving deeper into your ZX Spectrum /…

    ... with the Sinclair ZX Spectrum / I O Angell & B J Jones ...
    Vertigo Vertigo June 2005 Sales
  • Rebelstar Platform game finished[url="http://www.fwl.org.uk/pgd/rebelstar-ion.zip"]http://www.fwl.org.uk/pgd/rebelstar-ion.zip[/url] Rebelstar - Search for the I.O.N Gun 15 screen…

    ... />
    Rebelstar - Search for the I.O.N Gun

    15 ...
    psj3809 psj3809 June 2005 Development
  • Bounder!Ladderman did a [url="ftp://ftp.worldofspectrum.org/pub/sinclair/games-maps/b/Bounder.png"]screenshot map of Bounder[/url] recently. In it, I can see…

    ... B]DIE[/B] and [I](possibly, reading upwards along ... I O[/B][I](?)[/I] [B]G L C S[/B] [I] - whatever that means![/I ... [B]ZOO[/B] [I](or perhaps '200'?)[/I]

    ... ] [I](someone's initials?)[/I], [B]OK![/B] [I](right ... ('??') as nipples but I'm not too sure ...
    jil jil July 2005 Games
  • Hard drive and Multiface problemsI recently read about the Spectrum +3e, and thought to myself - "I'll give that a try, and I'll build the Hard drive Interface while I'm at it". So,…

    ... />
    06
    I/O error - press any key
    I tried reloading it - no ... drive was working correctly. I thought that maybe the ... />
    06
    I/O error - press any key


    Anyway, I could ramble on for ages ...
    jagman5994 jagman5994 October 2005 Sinclair Miscellaneous
  • Myth - History in the makingHi to everybody! I'm trying to play this game, after reading some positive reviews, but... I'm having problems! :D Well, I define keys, Q A I O Sp…

    ... to everybody!
    I'm trying to play this ... :D
    Well, I define keys, Q A I O Space, the game ... starts, but... I can't do ... anything except moving. How can I break the jars, fight, and ... so on? I've tried in many ways ...
    robysommo robysommo January 2006 Games
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... how the engine works. Eventually I will write up a more ... well at all. AT ALL. I may add some character-level ... good for.

    #2 I am using Microsoft debugging strategy ... /> - inp(), outp() (for reading/writing i/o ports), swapendian() have been added ...
    Alcoholics Anonymous Alcoholics Anonymous April 2006 Development
  • Wanted: z80 asm routines...for the Sam. This call goes out to Colin and others who know how it should be done. If you look on the Sam C disk you can see the implementation…

    ... the streams mechanism.

    I realise there is an outp ... stream is implemented ( .s ) which I'm guessing needs dissassembly before ... /> stream() opens stream strm for I/O functions. strm may be in ... twin disk game for which I could include level editors, ...
    DonkeyPong DonkeyPong January 2007 Development
  • Spectrum +2 Test Software ROM BoardHi - Can anybody help I am trying to get hold of a Spectrum +2 Test Software ROM Board the one that connects to the Expansion I/O slot. Many thanks …

    Hi - Can anybody help I am trying to get hold of a Spectrum +2 Test Software ROM Board the one that connects to the Expansion I/O slot.

    Many thanks
    Martin
    Martin Baugh Martin Baugh February 2007 Wanted
  • And you thought Cornishpastey was a nutcase...On the IMDB message boards relating to Pixar (and some Dreamworks) movies, people keep spouting a crackpot conspiracy theory that Dreamworks steals a…

    ... least two cases ([i]Shrek[/i] and [i]Flushed Away[/i]) the Dreamworks movie ... ...

    Take [i]Shrek[/i] vs. [i]Monsters, Inc.[/i] for instance; not ... a [i]Star Trek[/i] episode than it does to [i]Shrek[/i]. :-o
    robert@fm robert@fm March 2007 Chit chat
  • Amstrad +2 Diagnostic BoardCan anybody help I wish to buy the Diagnostic Board that connects to the I/O strip at the back of the Amstrad ZX Spectrum +2. Many thanks Martin

    Can anybody help I wish to buy the Diagnostic Board that connects to the I/O strip at the back of the Amstrad ZX Spectrum +2.
    Many thanks
    Martin
    Martin Baugh Martin Baugh March 2007 Wanted
  • +3 external floppyI'd like to connect 3,5" PC floppy drive (NEC) to ZX Spectrum +3 (with diode for RDY). Here are questions: 1) It seems the PC floppy uses just +5V, …

    I'd like to connect 3, ... take this voltage from "EXPANSION I/O socket"? I'm
    worried that ...
    orange orange March 2007 Hardware
<1…16171819202122…34>

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