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  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... load very happily into a 16K page on my diagnostics board ... OUT subroutine in the Basic ROM. But otherwise, the flash utility ... up any of the 32 16k pages from a menu.
    Winston Winston May 2007 Hardware
  • TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …

    ... load very happily into a 16K page on my diagnostics board ... OUT subroutine in the Basic ROM. But otherwise, the flash utility ... up any of the 32 16k pages from a menu.[/QUOTE ...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Hardware
  • 16 or 48k you decideI was wondering apart from the sticky label on the back say 48k and with out being able to see one boot up, if there is any way to tell a 16k machine…

    ... RAM chips thru the Z80 - ROM "hallway".
    That would tell ... the machine was populated with 16K or 48K, regardless of their ...
    Marcelo Marcelo June 2007 Sinclair Miscellaneous
  • Another TS Emu CartLooks like the one I have. [url]http://cgi.ebay.com/TC2068-Cartdrige-48K-emulator-for-Timex-Computer-2068_W0QQitemZ250133271074QQihZ015QQcategoryZ124…

    ... internal memory in the 0-16k area. Presumably changes were ... to match the Spectrum's rom disable signal which can ... also only disable the 0-16k area.

    ... the 0-16k area filled in by the Spectrum ROM on ... dock bank into the 0-16k area.

    ...
    Alcoholics Anonymous Alcoholics Anonymous June 2007 Sales
  • Spectrum ULAHi new to forum ,and have been a speccy owner/fan since the begining{like most 30 somthins on this forum !) Anyway what i want to know is the ULA th…

    ... (lower 16K RAM) chip. Occasionally, it can mean the ROM is bad ...
    Winston Winston July 2007 Hardware
  • Poorly Spectrum + Fault diagnosis help needed!Hi, I've got a Spectrum+. Sometime in the past I broke it and sent it off to be fixed. It came back working good as new, but with an issue 2 board i…

    ... in the case of a 16K machine (or a 48K with ... - which could be bad RAM/ROM/Z80 yadda yadda yadda.
    DEATH DEATH July 2007 Hardware
  • machine IDs for .z80 snapshotsHi, is there s.o. officially in charge for the .z80 file format? while upgrading zxsp's save_z80 routine i added new machine IDs for the Specci vari…

    ... /> ----------- ----------- ------------------- --------------- ------------
    0 48k 48k 16k issue 2
    1 48k ... br /> Also a custom rom for the TC2048 may ... a +2A with custom rom ... if this was supported ...
    Kio Kio August 2007 Emulators
  • switchable ROM`sHi all, As I own a few Spectrum and Commodore computers, I am wandering a few years ago on the C64 there was a switchable ROM the normal C64 and a Ji…

    ... with 4 16K banks. One bank can have the original rom, and ... banks, one for the original rom and another one for the ... who did their own internal rom swtich for the 48K. I ... States the most popular internal rom-switch was the one sold ...
    zxbruno zxbruno August 2007 Sinclair Miscellaneous
  • Early Version Betadisk Manual (ie anybody have one)Folks, after lengthy excavations in my attic I have dug out my old Betadisk interface and 720K drive. However the manual has done missing. It's wa…

    OK the ROM has been uploaded to WOS ... to page in the rom, and it's 16K in size (I ...
    Kilby Kilby August 2007 Hardware
  • Early Version Betadisk Manual (ie anybody have one)Folks, after lengthy excavations in my attic I have dug out my old Betadisk interface and 720K drive. However the manual has done missing. It's wa…

    [QUOTE=Kilby;211216]OK the ROM has been uploaded to WOS ... to page in the rom, and it's 16K in size (I ... , please tell me the actual ROM chip name.
    Sonic Sonic August 2007 Hardware
  • What Shop Did Spectrum come fromWhat shop was your spectrum purchased at? I my mum got ours for Christmas 1983 from W.H.Smith in Oxford. The guy in the shop asked my Mum if she wa…

    ... Mum if she wanted the Rom or Ram version. I think ... what he meant was 16K or 48K. I can see ... for the 48K speccy saying "16K ROM, 48K RAM" and thought they ...
    gasman gasman September 2007 Sinclair Miscellaneous
  • What did Spectrum BASIC lack (and was BBC BASIC so good?)Over the years, I've read in various multi-format magazines, that BBC BASIC was probably the best BASIC available on an 8-bit machine. I've never use…

    ... ). This machine has a similar ROM/RAM split to the BBC ... , lower 32K is ROM - 0x0000-0x3FFF is always page ... system ROM, 0x4000-0x7FFF is a sideways ROM pageable area (where 16K pages ... be paged, or an external ROM or RAM board can be ...
    Winston Winston September 2007 Sinclair Basic
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... should be easy as the ROM is not used at all ... /> The limit per post is 16k characters in case anyone was ...
    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
  • Wtf??I won this NZ auction earlier this week [url]http://www.trademe.co.nz/Browse/Listing.aspx?id=116509561[/url] and have been to collect the hardware th…

    ... as an EPROM in two 16K sections, because...well, all memory ... the 512K Flash ROM on ALIAC2 into 32 16K sections.

    ROM, flash - whatever, it doesn't ...
    Winston Winston October 2007 Hardware
  • FPGA Spectrum is aliveMy FPGA Spectrum that I started to work on year ago is in 90% ready. I have fixed DDR controller so I can read from it and write to it. I've run som…

    ... (Spartan 3E500).
    4. As ROM a built on board 16 ... is used.
    5. As 16k contended RAM an embedded memory ...
    brian-82 brian-82 November 2007 Development
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... method of paging in the ROM. You've got two basic ... code in the IF1 shadow rom. I would guess this is ... only one ROM can be paged into the lower 16K at any ... the IF1 and calls IF1 ROM code, then on return pages ... stripes if you remove the ROM from a Speccy and power ...
    Winston Winston November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... only one ROM can be paged into the lower 16K at ... needs to call the Spectrum ROM, though, to call the ... to the IF1 shadow ROM or the Spectrum ROM).

    ... stripes if you remove the ROM from a Speccy and ... around $0000 in the Mirage ROM — and if there's ...
    zub zub November 2007 Hardware
  • I took a chance on this ebay auction what do u think ?I saw what i think is a Rom version of Backgammon in the pic what are the chances its included when it i recieve it ? He doesn't seem to have sold an…

    ... in a box like the rom version has?

    this ... .co.uk/Backgammon-ZX-SPECTRUM-16K-Sinclair_W0QQitemZ280173688709QQihZ018QQcategoryZ112866QQssPageNameZWDVWQQrdZ1QQcmdZViewItem[/url]

    this ...
    ghbearman ghbearman November 2007 Sinclair Miscellaneous
  • Wtf??I won this NZ auction earlier this week [url]http://www.trademe.co.nz/Browse/Listing.aspx?id=116509561[/url] and have been to collect the hardware th…

    ... assume there's another 16K of this ROM, which we still don ...
    zub zub November 2007 Hardware
  • Wtf??I won this NZ auction earlier this week [url]http://www.trademe.co.nz/Browse/Listing.aspx?id=116509561[/url] and have been to collect the hardware th…

    ... assume there's another 16K of this ROM, which we still don ...
    jp jp November 2007 Hardware
  • The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…

    ... CPLD to arrange the lower 16K of the Speccy's memory ... the eventual ethernet board's ROM and RAM, and then only ...
    lordcoxis lordcoxis November 2007 Hardware
  • The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…

    ... unused space in the Spectrum ROM starts. The CPLD will ... page in socket library ROM page and RAM workspace. ... addresses in the lower 16K while ethernet code is ... traps (i.e. lower ROM traps) disabled with the jumper ... flash memory for the ROM with 4K sectors, so ...
    Winston Winston November 2007 Hardware
  • Benchmark timeWell, the BASIC benchmark posted in Creative Computing back in the 80s came up as a topic on the AtariAge forums. The article is available online an…

    ... be the people writing the ROM weren't familiar with numerical ... Microsoft's expertise, the Spectrum ROM was lucky enough to have ... in point in the Spectrum ROM's calculator which is implemented ... each memory access in the 16k-32k region which includes reading ...
    Alcoholics Anonymous Alcoholics Anonymous December 2007 Sinclair Basic
  • New compression method: Exomizer 2After I finished working on optimizing aPLib's decoder, I was told that pucrunch did compress better, and while looking for info about pucrunch (it t…

    It will come handy in my entry for the 16K game in ROM compo ;) Awesome work.
    na_th_an na_th_an December 2007 Development
  • splib2 from ROMI'm trying to generate IF2 ROM games for ZX Spectrum 16K using z88dk + splib2. So far I've managed to create a new crt0 file and to generate valid RO…

    ... get 48K of RAM + 16K of ROM which can be plenty of ...
    na_th_an na_th_an December 2007 Development
  • splib2 from ROMI'm trying to generate IF2 ROM games for ZX Spectrum 16K using z88dk + splib2. So far I've managed to create a new crt0 file and to generate valid RO…

    ... store the tile array in ROM also, they won't change ... to cram everything in the 16K of ROM. The nice thing is ...
    na_th_an na_th_an December 2007 Development
  • Where shall I start to look ?I got hold of a faulty 48k, Issue 6. It displays a picture like shown below: [URL]http://www.gjelberg.no/miscpics/speccyfault.jpg[/URL] Some of the…

    ... need a 27C128 (it has 16K capacity) blanc eprom in order ... to write the 48k rom. You can use a larger ...
    gtsamour gtsamour December 2007 Hardware
  • Copy Software For ZX LPrint Interface.I have a discovered white cassete containing some printer driver software. I have had a breif look in your archive and could not find it. Maybe somo…

    ... 48k machines but over rides 16k of ROM and doesn't work ...
    Andrew Barker Andrew Barker February 2008 MIA/STP/SDP
  • Which is the best spectrum to have ?Just wanted to know which is the best Spectrum to have as i know some have more bugs than others. All i wanted it for was to play games on both 48k …

    ... -1.rom)? I just ran them and these are 16k roms for ...
    sabre128 sabre128 March 2008 Hardware
  • +3!Just got my first ever Amstrad made Spectrum - a +3. Just my luck that the discs that came with it - nearly all of the pre-recorded game discs are c…

    ... use NOR flash for everything ROM-like, it's so much ... Am29F010 can be erased in 16k blocks.

    I'd ...
    Winston Winston March 2008 Hardware
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