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<1…17181920212223…34>
  • Firefox (new thoughts)Maybe more people would use Firefox if there was a version for the Speccy! [code] 10 PRINT AT 2, 2; "Press F for Firefox or I for M$IE" 20 LET K$=IN…

    ... once said...
    [/quote] [I] I'm beginning to run out ... ideas are getting...
    [/I]
    You call that ... />
    [quote]
    I just want to know whether ... software m/c and i/o routines are necessary to ... can't be Firefox (I believe I said that as well ...
    rich_chandler rich_chandler November 2006 Chit chat
  • Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…

    ... be accesses through vdp i/o. This makes the 2068 ... quote]
    As far as I understand in SP1 there are ...
    [quote]
    First, I´ll start with Basic for ... TS2068 because I´m more familiar to ... me more programming confidence. I´d like explore it´ ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Games
  • Speccy Film/TV License that bears the least similarity to its sourceI was thinking earlier today about the computer game version of [i]Jaws[/i] that was published in 1989 or thereabouts and has pretty much nothing to …

    ... /> 40 IF i$"q" AND i$"a" AND i$"o" AND i$"p" THEN GO ...
    gasman gasman November 2006 Games
  • The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…

    ... 't be done. If I try right-clicking on the ... range in the debugger window? I noticed a text field at ... reason for my post: I'm wondering if Spin is ... some non-trivial breakpointing that I'd like to do. In ... particular I want to stop the emulation ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Emulators
  • Opus Discovery 720K DriveOK, so I bought an Opus Discovery recently. Went through a whole process of fitting a second drive, which I know to be 720K. Eventually got the thin…

    ... the lines you suggested - I tried saving 50K blocks of ... drive started giving I/O errors.

    So, I guess the answer ... data...

    The program I found in the Spectrum Discovery ... Club newsletter disks, which I found on an italian site ...
    hldswrth hldswrth November 2006 Hardware
  • Small C on Sam help neededI'm trying to make good on some of my old developments that fell by the wayside and one of them uses Small C. The reason I stopped was down to not h…

    Yes, I think I am stuffed on it ( I vaguely remember this ... might be the reason I dropped the project ).
    ... in stdio support streams, I just can't open them ... composition.

    I'm more of a utility ... any disk or tape i/o support in the standard ...
    DonkeyPong DonkeyPong December 2006 Development
  • Small C on Sam help neededI'm trying to make good on some of my old developments that fell by the wayside and one of them uses Small C. The reason I stopped was down to not h…

    ... main development platform ).

    I like the idea about using ... load from disk ).

    I'd be interested in developing ... significant difference to the amount I could do in each visible ... memory bandwidth, if the memory I/O isn't vastly improved ( if ...
    DonkeyPong DonkeyPong December 2006 Development
  • Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …

    ... , which as Colin pointed out I just need to call the ... is the back buffer, which I hope.[/QUOTE]

    No ... do an OUT to an i/o port.


    [QUOTE ... =DonkeyPong]I can do without causing any ...
    Quazar Quazar January 2007 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... much appreciated (for instance, i'm not entirely sure ... and since the stream i/o can have input as ... br /> text:
    defm "I see dead people" ; other ...
    defb 0 ; I like to terminate strings like ... stdio interface to disk i/o. The C interface does ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • Little BASIC gameTry to make all standard BASIC-errors and tell us how you did it. Not allowed i.e. : PRINT USR 1362 D - Break cont-repeats but ok 10 GO TO 10 RU…

    ... input STOP, press Enter.
    (I guess there were two alternate ... ]

    10 FOR I=1 TO 0
    RUN ...

    [b]I FOR without NEXT, 10:1 ... /> RUN
    [b]J Invalid I/O device, 10:1[/b]

    [/code]

    I'll leave last 7 for ...
    Arda Arda January 2007 Sinclair Basic
  • Spectrum NOT DEAD PROJECT SPECTRUM XXICommodore is back! MSX is back! Amiga is back! And Spectrum?? Why Not Dont Cry with Nostalgie for Spectrum! Help us To do this dream true! The SPECTR…

    ... protected memory spaces and protected i/o isn't too hard to ...
    Alcoholics Anonymous Alcoholics Anonymous February 2007 Hardware
  • Spectrum NOT DEAD PROJECT SPECTRUM XXICommodore is back! MSX is back! Amiga is back! And Spectrum?? Why Not Dont Cry with Nostalgie for Spectrum! Help us To do this dream true! The SPECTR…

    [quote=Alcoholics Anonymous;168977]It doesn't have to be like that. A real z80 based multitasking system with protected memory spaces and protected i/o isn't too hard to do...[/quote]
    On A Spectrum?
    rich_chandler rich_chandler February 2007 Hardware
  • Fpga?I visited this page: [url]http://www.fpga.ch/retro/zx.php[/url] and I have no idea what it is. I checked google and wikipedia but I still don't get…

    ... with a ring of i/o pins and programmable i/o drivers around the ... be connected to i/o pins through the configurable i/o driver circuits around ...
    Alcoholics Anonymous Alcoholics Anonymous February 2007 Sinclair Miscellaneous
  • Death of the Computer Science DepartmentRead this article on the death of the computer science department in universities by Neil McBride from De Montfort. It makes very interesting (and wo…

    ... a small Flash card. Yesterday I was working on such a ... flash card socket and the I/O connectors.

    [QUOTE]So ... .

    Also, from what I've seen over the past ... memory capacity.

    I *really* wish I could go into more ...
    NickH NickH February 2007 Chit chat
  • I/O contention model questionHi everyone, Sorry for my poor english. Together with a friend we are working on ZX Spectrum 48k implemented in FPGA. We have found bug in the Spect…

    ... is halted during T1. For i/o contention, A0 + iorq needs to ... is time to finish the i/o or memory operation, the ula ... c.s.s faq describing I/O contention.

    [/QUOTE ...
    Mp Mp February 2007 Development
  • I/O contention model questionHi everyone, Sorry for my poor english. Together with a friend we are working on ZX Spectrum 48k implemented in FPGA. We have found bug in the Spect…

    ... c.s.s faq describing I/O contention.[/QUOTE]

    Just ... (like the ULA)? At present, I've no experience with FPGAs ... time in the next year I'd like to start experimenting ... with them and I'm quite interested in the ...
    Winston Winston February 2007 Development
  • I/O contention model questionHi everyone, Sorry for my poor english. Together with a friend we are working on ZX Spectrum 48k implemented in FPGA. We have found bug in the Spect…

    I believe the the faq are ... hardware designer point of view, I can say, from my experience ... signals). The same for an I/O operation, for the ula it ...
    Mp Mp February 2007 Development
  • Opus Discovery and +2A?Can anyone tell me if the Opus Discovery is compatible with the +2A. I've just bought a +2A off Ebay and couldn't find any info on compatability. If…

    Unless they changed the way I/O devices were selected (the original ... selected when A0 is low), I wouldn't expect a software ... from the remaining 128 possibilities (i.e. A0 high, so the ... get selected), but from what I've read, pretty much all ...
    Winston Winston February 2007 Hardware
  • The 150 pound home computerWe missing out on this still ... I think. I know the PC market has wrecked all chance for any alternatives to ever have a hope but ... what if. :lol:…

    ... my previous full time job I designed two industrial control systems ... compared to other embedded processors I evaluated (never, ever go ... onboard peripherals which clash with I/O space, which mean it is ... system etc.

    I have briefly tinkered with the ...
    Quazar Quazar February 2007 Sinclair Miscellaneous
  • The 150 pound home computerWe missing out on this still ... I think. I know the PC market has wrecked all chance for any alternatives to ever have a hope but ... what if. :lol:…

    ... onboard peripherals which clash with I/O space, which mean it ... .

    [quote]I have briefly tinkered with the ... except for undocumented instructions. I think it traps them even ...
    I guess I assumed Mayhem is an accelerator... I guess I should ask ...
    JamesD JamesD February 2007 Sinclair Miscellaneous
  • Worst. Controls. Ever.Right... time to have a vote on the worst keyboard controls ever! Here's some suggestions to start you all off: (1) The standard cursor keys. Need …

    ... />
    but seriously I wish I'd used I/O left and right then ... 't have worn out and I'd still have been able ...
    chop983 chop983 February 2007 Games
  • If a C64 can do it...Forgive me if this isn't the right section. We've seen coders surprising us over and over again with excellent demos and things that a few years ago…

    [QUOTE=JamesD;170855]I'm not sure it was ... word at the time).
    I think there was a trade ... game oriented system.[/QUOTE]
    I post for the first time ... sound chip, 256 colors, SIO (I/O), device handlers etc.) for the ...
    Gury Gury March 2007 Development
  • DMA interface for ZX Spectrum[url]http://velesoft.speccy.cz/data-gear.htm[/url] This is internal DATA-GEAR interface for any 8-bit computer with Z80CPU. Use Direct Memory Access…

    ...
    - I/O to memory
    - memory to I/O
    - I/O to I/O
    - search ...
    velesoft velesoft March 2007 Hardware
  • Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…

    ... a very long time since I've looked at fpgas so ... I am a bit out of ... what's out there, but I used to prefer Xilinx's ... serial nature and lack of i/o pins. Much more opens up ... with an fpga, but I guess it all depends on ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Sinclair Miscellaneous
  • Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…

    ... Atmega certainly won't lack I/O pins for a ULA ... the package are useable as I/O (everything except Vdd/Vss ... still got quite a few I/O lines left over (certainly ... be fast enough to do I/O with the Z80 without ... any supporting glue logic, I've not yet played with ...
    Winston Winston March 2007 Sinclair Miscellaneous
  • Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…

    ... be fast enough to do I/O with the Z80 without ... any supporting glue logic, I've not yet played with ... going to be difficult -- I assume you'd run at ... 4 Atmega cycles). For an i/o read/write you'd have ... have to arbitrate memory and i/o accesses which can be ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Sinclair Miscellaneous
  • Speccy vs C64 vs Amstrad - Make your vote count![url]http://www.retrofusiononline.com/fusion/[/url] You know it makes sense. We're winning at the moment, too... D.

    ... bit faster than the Z80 (I think the fastest 6502 instructions ... . The Z80 also has separate I/O space meaning devices don't ...
    Winston Winston March 2007 Sinclair Miscellaneous
  • Dead Spectrum +Hi all, I've recently dug out my old Spectrum + with the idea of repairing it. When I last looked at it, when I was much younger, I was soldering a …

    ... of encouragement, actually - I use a pair of snipe ... the ULA out because I get the distinct impression ... lead to problems. However, I think a reasonably common ... to display stuff. I think all I'll need is a ... the LCD and some minimal I/O port decoding - it'll ...
    Winston Winston March 2007 Hardware
  • Retargetting the Z88dkWell, I'm asking here because it's come up before, and I assume someone here might know the answer... I'm trying to retarget the Z88DK for the Z80 b…

    ... with the same contents (I believe the cfg is created ... zcc +zx -vn main.c -o main.bin -lndos -create-app ... s complete other than the i/o routines you've already ... the lib with "make -i all", move the new lib ... shell with "exit". The -i param is necessary as the ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Development
  • Adding AY music to your plogramI'd like to add some nice tune to my program written in machine code. I am not new to assembler programming but with music programming I have no expe…

    [QUOTE=Ralf;177276]Now I realised I need just an short assembler ... -- the ay chip is identical. I point you here because the ... to i/o address $fffd and the AY data port to i/o address ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Development
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