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<1…17181920212223…34>
  • An idea for a possible(?) new interfaceDue to the Spectrum's processor speed and the way the ULA works, there are a couple things (among others) that are difficult to do: -Gigascreen or a…

    ... external CPU board with dedicated RAM and math routines in ROM could ...
    omega omega October 2009 Hardware
  • AY interface - How many possibilities?Currently the newest AY interface available for sale gives 16K and 48K owners a chance to add AY sound to their Speccy, but (correct me if I'm wrong)…

    ... br />
    >And I think there was also ... called Melodik for the 16K and 48K.
    ----------
    ... was called Melodik in Czech and Slovakia.
    As ... AY utilities (Sound Tracker and SQ-Tracker - I don ... 16K is only slow-ram and SampleTracker even can't ...
    Mister Beep Mister Beep October 2009 Hardware
  • Update on my exploding computer sagawell heres an update diagnosed the hdd AND dvd was shagged. bought a new hdd and dvd drive as well as an IDE / SATA to USB adapter (so you can plug…

    I thought the pulling the RAM and punting into another machine was used to pull disk encryption keys, I seem to remember they sprayed the chips with something to keep them cool at this helped retain the data.
    MrCheese MrCheese October 2009 Chit chat
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... ;398567]If the system variables and the start of the BASIC ... at the top of the RAM and what's left is available ... to BASIC.
    [quote]And if the ROM's printing ... what ColorPRINT does.
    [quote]And that's assuming you leave ...
    chev chev November 2009 Emulators
  • Magnetic Scrolls Adventures...Look at that: [url]http://www.mobygames.com/game/guild-of-thieves/screenshots[/url] all of the platforms evil c64, little brother cpc, even crappy a…

    [QUOTE=fog;400445]I doubt it highly ,simply due to the nature which it had to access data.. tape wouldn't be good / quick enough.[/QUOTE]

    I think it just loaded the whole game into 128k RAM and no further access to tape was necessary.
    Rickard Rickard November 2009 Games
  • using ic/chip holders ?advisable or not to put them in an original spectrum? I mean to save soldering in the future, if I'm gonna be having the machine fixed. I saw them …

    ... of the lower RAM, test, then rest of lower RAM (and test).
    RetroTechie RetroTechie November 2009 Hardware
  • "8 CHANNELS" -ZX Spectrum BEEPER demoHi there. :) We finally managed to finish the BEEPER demo with 8-channels songs. You can get it from here: [url]http://pouet.net/prod.php?which=5…

    ... . Rarely ZX Spectrum 16K with RAM-pack. Almost never I use ... no intros (no enough of RAM and no "save" possibility in some ... a different between real machine and emulator - the hardware sound is ... much more soft - so: pleasant - and emulation is somehow too flat ...
    Mister Beep Mister Beep November 2009 Sinclair Miscellaneous
  • Measuring the Roger Jowett problemPlease vote if you've received unsolicited mail from Roger Jowett during this year, be it binaries you didn't ask for, or unwanted invitations to soc…

    ... 8ghz processors with 6gb of ram and a vga with 256mb ... is actually usefully mirrored and therefroe available at full ... also digital text services and subtitles in several languages ... you used both after complaining and complaining the 'engineer' stuffed ...
    Roger Jowett Roger Jowett November 2009 Chit chat
  • RAM PagingCan anyone shed some light as to how RAM paging actually works, at a hardware level (so not POKE xxxxx stuff). I know about CE and OE lines on DRAMs …

    ... with my new fluke 9010 and some arcade boards using z80 ... . I can scan the inpath ram and roms but clearly I need ... page in other blocks of ram, back to the mame driver ...
    Womble Womble December 2009 Hardware
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... i/o without cpu intervention and without pausing the cpu. The ... network interface using a uart and serial -> ethernet / wifi ... . A device with its own ram (and readble by the z80) could ... intervention. A new project adding ram to the spectrum could also ...
    Alcoholics Anonymous Alcoholics Anonymous December 2009 Development
  • Have Sony lost the plot ?I have had some money for Christmas from my mum and dad and as always I will use it to buy myself something I normally wouldn't consider. So I thoug…

    ... of theirs is a PS2 and a PSP, both very ... get past the protection, and I don't like many ... does have very good Megadrive and SNES emulation (runs everything ... tried on the the emulators, and very well too) but ... a tiny pool of RAM and a lousy CPU, and a clunky old ...
    ewgf ewgf December 2009 Chit chat
  • Have Sony lost the plot ?I have had some money for Christmas from my mum and dad and as always I will use it to buy myself something I normally wouldn't consider. So I thoug…

    ... -PAD, right? :)

    [quote]And I wish the PSP used ... ]tiny pool of RAM and a lousy CPU[/B], and a clunky old ... , so you play old games, and coz they are often made ...
    Shadow Maker Shadow Maker December 2009 Chit chat
  • many scr files to tap fileguys, I know that threads like this have existed in the past, but i'm gonna try to get a video onto speccy. The +3e to be exact. figured i'd use full…

    ... out of the rom into ram and add an AY out every ... out the sample rate required and mux the audio with the ... byte ldirs takes 90 seconds and thats equivalent to 80 secs ... built my own CF interface and not a member of ... 'll add an IM2 soundtrack and put it online ok - ...
    nuggetreggae nuggetreggae December 2009 Development
  • Dim commandI try o find a BASIC COMPILER for ZX SPECTRUM 128 that use DIM command with two or more letter as 10 DIM AB(10) instead of 10 DIM A(10) Any iforma…

    ... necessity because of restricted RAM and a characteristic shared by ... developed.
    And the cross-compilers and emulators have boosted ... into blocks. In C and similar languages, statements are ... Other languages like Pascal and many Basic dialects use BEGIN ...
    Alcoholics Anonymous Alcoholics Anonymous December 2009 Sinclair Basic
  • yie ar 128k on a real spectrumIs there any way to play yie ar 128k on a real spectrum. whenever i create a wav with k7zx it crashes after level 1. Also if i create a tzx with z80…

    ... break into the "trainer" option and look at the basic in ... there was unused space in RAM... And I left it as a ...
    nuggetreggae nuggetreggae January 2010 Games
  • Games not compatible with real grey +2There are many threads about Spectrum+3/2A incompatibility issues but what about grey +2? I've found that games like Marauder and Skate Crazy don't w…

    ... be executed, leading to corruption and crashes.
    [/QUOTE]
    ram and its prorgrams run fine. ... code executed in contended RAM could increase the likelihood ... have improperly written sw and improperly designed hw causing ...
    Alcoholics Anonymous Alcoholics Anonymous January 2010 Games
  • Games not compatible with real grey +2There are many threads about Spectrum+3/2A incompatibility issues but what about grey +2? I've found that games like Marauder and Skate Crazy don't w…

    ... spectrum has nothing but contended ram and its prorgrams run fine. Each ... contention while the screen draws and 16k programs never crash.[/QUOTE ... games usually use IM 1 and the I register is set ... when you set IM 2 and point the I register to ...
    Jmk Jmk January 2010 Games
  • Random access, file sizes and more.A few days ago Aowen mentioned that random access to saved data is not a problem. Here are my thoughts, doubts and suggestions regarding this subject…

    ... new way of reading and saving files bigger than ... doesn't need GBs of ram and some people even get ... the mass storage as virtual ram?

    If ... created with line art and all frames consists of ... to compress it and make it fit the Speccy ram?
    < ...
    zxbruno zxbruno January 2010 Development
  • Spectrum 48k - Many ProblemsHi, I'm new to the boards and to owning a Spectrum, and sadly, it doesn't work properly. I'd been using an emulator for a while but I decided I'd lik…

    ... it's actually died and not producing any signal ... at all, and your TV has just ... part gets quite hot, and any bad solder joints tend ... Search this forum for "4116" and "voltage". There will be posts linking ... these chips (+5v, -5v and +12v). If the -5v ...
    Winston Winston January 2010 Hardware
  • Grand Theft Auto 3Following a discussion today about GTA style games, and which one is the best, I thought I'd post here and see what everyone prefers. There are *lot…

    ... checked out reviews on Amazon and almost everyone had the same ... quad-core coupled with 4Gb RAM and a GTX260 it flies with ...
    Vampyre Vampyre February 2010 Chit chat
  • Mass storage - why backup battery?I wasn't sure to post this under "hardware" or "development", but here goes: There are these mass storage devices for ZX Spectrum, and on many desig…

    ... unmodified Spectrum - between 0x0000 and 0x3FFF by holding ROMCS high ... it uses an EEPROM and some RAM, and has no battery backup.< ... be) into RAM, erase the entire sector, and write the whole ... against having more complex hardware and a larger, more expensive ...
    Winston Winston February 2010 Hardware
  • Please test my Manic Miner remake!Thanks to everyone who downloaded my sneak preview of Manic Miner Turbo. Thanks especially to na_th_an who is the only person so far to give feedback…

    ... back buffer in non-contended RAM and add dirty cell addresses to ... all attribs from previous frame and redraw new attribs).
    < ... update screen, just play tune and update framecount
    ; we ... /> ld a, (tune_offset)
    and #7e
    rrca
    ld ...
    Paradigm Shifter Paradigm Shifter February 2010 Games
  • OptimisationI've participated in several thread hijacks about this, so perhaps I should open a new thread. Et VIOLA! Here it is! Knuth, who was earlier reporte…

    ... s actually plenty of physical RAM available. This was certainly ... process starts and wants RAM, and although there's mountains of RAM that the ... first process isn't actually touching - and ... amounts of RAM it's not actually using and maybe hasn ...
    Winston Winston February 2010 Development
  • OptimisationI've participated in several thread hijacks about this, so perhaps I should open a new thread. Et VIOLA! Here it is! Knuth, who was earlier reporte…

    ... s actually plenty of physical RAM available. This was certainly ... process starts and wants RAM, and although there's mountains of RAM that the ... first process isn't actually touching - and ... amounts of RAM it's not actually using and maybe hasn ...
    Paradigm Shifter Paradigm Shifter February 2010 Development
  • Platform Game Designer 2Right, with Telly Heroes out of the way, I've decided to have a second attempt at this. I've ditched the old PGD2 source, and started again with the…

    ... something that flies around aimlessly and rebounds/changes direction when ... to be bigger and freeing up as much ram as possible. Or ... to a full 40K of RAM and rewrite AGD as a Spectrum ... items, collision detection was poor and changing the background colour seemed ...
    jonathan jonathan February 2010 Development
  • Platform Game Designer 2Right, with Telly Heroes out of the way, I've decided to have a second attempt at this. I've ditched the old PGD2 source, and started again with the…

    ... giving each block a mask, and taking up another 6144 bytes ... to a full 40K of RAM and rewrite AGD as a Spectrum ...
    BiNMaN BiNMaN February 2010 Development
  • Platform Game Designer 2Right, with Telly Heroes out of the way, I've decided to have a second attempt at this. I've ditched the old PGD2 source, and started again with the…

    ... to a full 40K of RAM and rewrite AGD as a Spectrum ... about assembly on the Spectrum and can write a gui based ... system to design the game and put all the necessary bits ...
    mulder mulder February 2010 Development
  • Is there any video input on expansion bus?Imagine you want to build a custom display hardware, for instance, to add hardware sprites to display. Is it possible to design such a device so that…

    ... currently generated tv picture to RAM and than generate VGA.
    It ... of ULA (starting by INT) and copy data from data bus ... on flexi PCB and will fit between ULA and socket and than will ...
    willcz willcz March 2010 Hardware
  • Is there any video input on expansion bus?Imagine you want to build a custom display hardware, for instance, to add hardware sprites to display. Is it possible to design such a device so that…

    ... currently generated tv picture to RAM and than generate VGA.
    It ... of ULA (starting by INT) and copy data from data bus ... projects derived from the Harlequin (and I suppose, from the ULA ... on flexi PCB and will fit between ULA and socket and than will ...
    csmith csmith March 2010 Hardware
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