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  • Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…

    ... looking at numbers in hex than in decimal or a long ... 32765 (128k memory paging port) / 65533 (AY register port) (***) / 16384 (start ... . No calculator required. And in hex form, although the components ... seeing the AY ports 65533 and 49149 in hex form $fffd ...
    Alcoholics Anonymous Alcoholics Anonymous October 2016 Development
  • Why do we have to live with colour clash on the Spectrum Next - if it ever gets sold!I can fully sympathize with those who would like to see a 'new' Spectrum, presumably modelled on the last and best version with perhaps the option to…

    ... but I'll chuck em in anyway

    ... selectable)
    PS/2 port: Mouse with Kempston mode emulation ... /> Tape support: Mic and Ear ports for tape loading and ... external bus expansion port and accelerator expansion port
    Accelerator board ...
    BiNMaN BiNMaN November 2016 Chit chat
  • A few questions about sound and keys in BASICIf I want sound in my BASIC game I have to use BEEP right ? It seems to lock up the CPU for far too long . On Arjun's page I found how to use CALL 94…

    ... have enough cycles that your ear registers the note. If the ... through one or two cycles in such a short beep. So ... wired to the same OUT port that controls the border colour ...
    joefish joefish December 2016 Sinclair Basic
  • What should your speccy have come with ?:) I was thinking about this earlier. What changes should of been made to the Speccy when you purchased yours ? Realistically this topic really…

    ... Sinclair 2068 (TS2068), released in November 1983, was arguably one ... -pin Serial and Parallel port connections at rear for ... br />
    - Rear mic/ear combined audio jack for backwards ... consumer and business Spectrum models in special package deals.
    ...
    retrogod retrogod January 2017 Sinclair Miscellaneous
  • Spectrum Cables : How many individual types of these are there "out there" both past and now?So this is all about giving the SPECTRUM cables their correct cable titles to aid IDENTIFICATION OF CABLE TYPE and FUNCTION across the world.. An e…

    ... a lesson for me there : in future labelling must include function ... Save/Mic or a Load?Ear? And does it matter!!)
    port (maybe Atari relevant?)
    9 ... that for (its been put in the wrong box!) . Maybe something ...
    harriusherbartio harriusherbartio February 2017 Hardware
  • SD Card Interfaces for the ZX Spectrum : the complete list OK I admit it : this thread will start life as the incomplete list of SD card interfaces but the aim is to list the lot

    ... inexpensive alternative to the Ethernet port

    [img ... - Kempston joystick port.
    - PS/2 mouse port, producing Kempston mouse ... , using the built-in 'tape player' and the 'EAR' cable.
    ... , connected to the USB port, up to seven networked ...
    Dan Antohi Dan Antohi June 2017 Hardware
  • Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …

    ... nice keyboard to be accommodated in . An answer is ... needed..........................

    In reality . "ply base swapping" is ... the other ports (load /ear etc) often screwed into the ... happen ideas are needed for port handling . Maybe they could ...
    harriusherbartio harriusherbartio July 2017 Hardware
  • ZX-Uno moddingStarting with ZX-Uno case modding I have not yet received my ZX-Uno yet (it is in the post) but I know that I will have to do at least one mod …

    ... favourite old style Atari joystick in Kempston mode

    ... and easily cut out additional port holes for your ZX- ... flexibility available to use sound in interesting ways

    ... installed by loading in TAP format through the EAR input connector.< ...
    harriusherbartio harriusherbartio December 2017 Hardware
  • IN instruction on emulatorsHi everyone I wrote: 10 PAUSE 0 20 PRINT IN 63486 If i press 1, result is 190 instead of 254 (i used FUSE and Spin) If i press 2, 189 (253) i…

    ... three bits when reading from port $fe. Bits 5 and 7 ... , but Bit 6 is the EAR/MIC socket (they are connected ... keyboard. You’re only interested in the bottom five bits.
    Ast_A_Moore Ast_A_Moore March 2018 Sinclair Basic
  • 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…

    ... would be some variance in the output frequency. ... would depend on whether Port 254 is contended or ... high byte of the port address. Finally, at ... +2A/+3 apply port contention in a way that is ... port contention? Something that would make it easy to determine by ear ...
    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…

    ... a bit cleaner. To my ear, the emulated results are ... The high byte of the port, again, doesn’t make ...
    Whether there’s contention in both cases or not, it ... it is applied differently to port $fe on different architectures ... high byte of the port address.
    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…

    ... low signal), so, at least in theory, all I/O access ... the high byte of the port on the 128K still doesn ... are to minute for the ear to perceive.
    Ast_A_Moore Ast_A_Moore July 2018 Assembler
  • Features that never made it into the SpectrumAlthough kind of a Hardware question (a kind moderator might want to move it, I was 50/50 on where to post it, I don't mind) , I was thinking about t…

    ... was supposed to have built in support for the microdrives. I ... a serial port was considered.

    In regards to the ear and ...
    1024MAK 1024MAK September 2018 Sinclair Miscellaneous
  • Just rescued an old tape recorder from the thrash binPeople who saw me must have thought that I am crazy. :P Couldn't resist, in spite of the poor exterior condition of the unit (all wet and dirty) i…

    ... you need to remove the ear jack before you actually save ... , a transistor and a call in BASIC to the RS232 port!
    DEATH DEATH November 2018 Chit chat
  • Understanding tape edgesI've never done any tape reading code. But I've read about these "edges" on multiple occasions. Trouble is I don't understand what they heck they are…

    ... , tape out (Mic) and tape in (Ear) all share the same ULA ... set to at I/O port 0xFE (254). The actual ... When Speccy is reading the port, is there any noise? I ... read 1 out of MIC port is that a rising edge ... ? So if I read the port without the tape connected, there ...
    1024MAK 1024MAK October 2019 Development
  • Bit of fun - ToastRack , one change onlyAlthough there's an old "one change only" topic about, I was thinking about the toastyrack 128's earlier. Its actually the only Spectrum model I've n…

    ... used for either a built in network port or a simple RS232 ... serial port.

    But Sinclair ... ULA I/O port bits would do, in order to maintain ... issue 2 boards (the Ear/Mic/Speaker part of the ... 8 x 6. The Ear input would still have been ...
    1024MAK 1024MAK November 2020 Hardware
  • Mini Spectrum +2Hi, I've just missed out by 53p on a Spectrum +2 which was chop sawed to make it a Mini Spectrum +2: https://www.ebay.co.uk/itm/Grey-Spectrum-Plus-2…

    ... sound port on a +2 can be used for both ear and ... connector to a Y-splitter ear and mic would be necessary ... these were available back in the day in Tandy:
    https://www ... be possible to wire up ear and mic sockets from tape ...
    lynn3686 lynn3686 December 2020 Hardware
  • Are there any TWIN COMPUTER games or any other twinned software for the ZX Spectrum?I noticed in the PSS Game "Tobruk" that there was an option for the use of 2 Amstrad Micros . The instructions say :- "This advanced version of Tobru…

    ... would require very little in terms of interfacing so ... comms via the tape's EAR/MIC.

    ... /> Pin No. Amstrad CPC Joystick Port
    1 Up
    ... collector COM ports which in fact act as outputs. ... Was rs232 via the joystick port a thing on the ...
    Alcoholics Anonymous Alcoholics Anonymous December 2020 Games
  • Kempston problems in XPOK, I've been running ZX32 on Win98 for a year or so and using my Sidewinder Pro pads with games providing the Kempston joystick option. Everything …

    ... has decided to continually move in a South-Easterly direction no ...
    Andy C Andy C February 2002 Emulators
  • Keys in 48k mode for SpecEmu 1.2?Hello all, Does anyone know how to get the " symbol to appear when in 48k mode on Spec Emu 1.2? As you can imagine, it's pretty essential to be able…

    ... the " symbol to appear when in 48k mode on Spec Emu ...
    David David July 2001 Emulators
  • Beginners in need of Help using WarajevoAs a newcomer to emulators I would really appreciate some help on how to use pokes (pok files) for the Warajevo emulator. I reallly don't have a clu…

    ... 'm sure there are others in the same boat who would ...
    Rob in Hull Rob in Hull March 2001 Emulators
  • AY in gamesMe interest, whether there is 128k modes and AY a music in the following games for ZX Spectrum?: Codemasters: Mig-29 Soviet Fighter 3D Starfighter …

    ... modes and AY a music in the following games for ZX ... Mouse Super Cop/Murray Mouse In Mouse Mania
    Olli and ...
    Aleksey Aleksey February 2002 Games
  • stuck in Jasper!Hi Speccy-buddies! I am playing the cool game Jasper but I am completely stuck on the screen with the two snakes. Its the screen which appears after …

    ... also to fetch the rope in the tree but the tail ...
    Dasse Dasse February 2002 Games
  • Bug in Nemesis the WarlockI've noticed a bug in Nemesis the Warlock that prevents the game from being completed. On level 7, both on the 48K and 128K versions, the sprite repr…

    ... 've noticed a bug in Nemesis the Warlock that ... emulation problem since back in July 1987 I had ... got from one of the (in)famous Italian "tape magazines", ... it seems it was something in the original game.
    ... to alter the code in order to ensure proper ...
    Alessandro Grussu Alessandro Grussu December 2001 Games
  • What in the hell does...(UL), (AL), (S3) (DI), (DL), (PW), etc. mean? I found these in the games list, and have no idea about the meaning. Thanks in advance

    (UL), (AL), (S3) (DI), (DL), (PW), etc. mean? I found these in the games list, and have no idea about the meaning.
    Thanks in advance
    Anonymous Anonymous November 2001 Games
  • Missing in CopyrightSee 'Miscellaneous' forum - Missing in Copyright list...? posted by neffuM. Interesting stuff going on there...

    See 'Miscellaneous' forum - Missing in Copyright list...? posted by neffuM. Interesting stuff going on there...
    Fuzzbucket Fuzzbucket August 2001 Games
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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
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
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    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
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  • +3 Disk drive motor
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  • Celebrity deaths...
    mel the bell on April 20

HitBox

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ear 2.4K 3K
port 10.1K 15.4K
in 401.9K 810.5K
65533 70 181

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