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<1…16171819202122…34>
  • Memory Map/ContentionHi I'm new to speccy coding (well I did some z80 coding a few years back - like 20yrs ago :) ), and I'd like to get back into writing some scrolling…

    Yes on a 16K Spectrum all memory is contended.
    Geoff Geoff October 2006 Development
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... one 16k block that is contended.

    These video modes ...
    Alcoholics Anonymous Alcoholics Anonymous October 2006 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... one 16k block that is contended.

    These video modes ...
    JamesD JamesD October 2006 Sinclair Miscellaneous
  • ArmalyteWas just browsing through some old YS stuff, and remembered the playable demo of this. Just got it and had a go from the archive. It's actually a ver…

    ... really (really!)good C64 games (IO, Hawkeye, Armalyte) just never seemed ... /> [/quote]

    What´s IO? Hawkeye and Armalyte are both ...
    Michael_ Michael_ October 2006 Games
  • ArmalyteWas just browsing through some old YS stuff, and remembered the playable demo of this. Just got it and had a go from the archive. It's actually a ver…

    IO wasn't by Thalamus, that was by Kinetic Design for Firebird...

    It would interesting to know how far Creatures was developed - the screenshots I've seen are quite good, but it's hard to tell if that was just a mock-up.
    merman merman October 2006 Games
  • Timex 2048I am curently living in Poland and purchased from a polish auction site a boxed Timex 2048. The picture is just perfect at that is from the modula…

    I love my TC2048, with composite out and built in Kempston interface and excellent 48K Spectrum compatibility it is a very useful machine. Not to mention the excellent build quality (feels much more solid that a 48K), and improved graphics modes.
    Fred Fred October 2006 Hardware
  • Timex 2048I am curently living in Poland and purchased from a polish auction site a boxed Timex 2048. The picture is just perfect at that is from the modula…

    Thanks all for your thoughts, I like the hi res screen shot for the Tc2048.

    For now the TC2048 is runs all 48K games with the best video output if have seen.
    DBJ DBJ October 2006 Hardware
  • Oh so BRIGHT!What is the SLOWEST way to change the attribute area to BRIGHT? It has to be legit! No meaningless instructions or doing stuff for the sake of it. …

    ... load a +1 value from contended ram and doing a 16 ...
    frobush frobush November 2006 Development
  • 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…

    ... before Andrew Owen did his tc2048 demo. Run flies-2068.tap ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Games
  • 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…

    ... nifty arcade conversion for the TC2048 and TS2068 in 8x1 mode ...
    Paulo Kathanni Paulo Kathanni November 2006 Games
  • 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…

    ... the port values on a TC2048 and the results don't ...
    Fred Fred November 2006 Games
  • Port problem with either EightyOne or FUSEA bug in EightyOne's keyboard handling has now been fixed.

    ... own observations of a real TC2048.[/QUOTE]

    I've ... as before) by making the TC2048/SpecSE timing match a normal ...
    MikeW MikeW December 2006 Emulators
  • Inside Outing - overrated?It's probably going to appear in the 1988 chapter due to the game design and graphical detail, but it looks *really* boring to play: exhaustively sea…

    IO was nothing special. I was bored senseless by the 3rd screen. As far as physics demo goes, Fairlight had it all figured out already and was the better game by many a mile!
    Arjun Arjun December 2006 Games
  • ZXSP Emulator running too fastHi All, I was wondering if any of you have had a problem whereby the zxsp emulator runs too fast so won't load games etc? For example, when loading…

    ... Fairlight 2 on my Timex TC2048 and Fuse and uploaded the ...
    Fred Fred January 2007 Emulators
  • Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…

    ... Kempston port decoder on the TC2048.
    glancaster glancaster January 2007 Hardware
  • Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…

    ... won't work on the TC2048 for the same reason.
    TC2048 is out as well. No ... this has A5=0, which TC2048 takes to be the Kempston ...
    glancaster glancaster January 2007 Hardware
  • EightyOne site down?Has anyone else had problems trying to get onto Mikes site?

    ... , and the TS2068 becomes a TC2048 with ts2048.dck.

    zxbruno zxbruno January 2007 Sinclair Miscellaneous
  • 2007, and still no NIC and browser for the Speccy?I've started to read all the w.o.s. threads, starting by the ones that came up with the search function, using the keywords of the topics that intere…

    ... NIC and an ISA multi-IO card connected to a ... a dozen or so IO ports on the speccy ... to the standard PC IO ports on the NIC ... and multi-IO card.

    ... code, and several spare IO pins for connection to other ... , it is 3.3v IO for one, but could ...
    dtl dtl February 2007 Development
  • divIDE ProductionJust to let everyone know that we have made further progress with the updated divIDE. Board design has been completed and changes have been made to …

    ... have is with the old TC2048 and the FDD3000 disk drive ...
    zxbruno zxbruno February 2007 Announcements
  • 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…

    ... both types of instructions have IO machine cycle at the end ...
    brian-82 brian-82 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…

    ... one cycle before the first contended cycle then this operation is ... operation starts at the first contended cycle or later then the ...
    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…

    [quote=brian-82;170002]
    To be strict, in the FAQ is bug in INI/OUTI descriptions, as Zilog manual says that both types of instructions have IO machine cycle at the end.[/quote]


    Then the Zilog manual has a bug :)
    Woody Woody February 2007 Development
  • 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:…

    ... [/url]
    All the various IO options available [url]http://www ...
    ADJB ADJB February 2007 Sinclair Miscellaneous
  • Groundbreaking gamesWhich games really broke new ground? I mean the ones that actually got around the hardware limitations of the Spectrum. For example: Aquaplane - f…

    ... play back the sample from contended memory which really mangles the ...
    Matt_B Matt_B February 2007 Games
  • Sound / Kempston EmulationHi I'm working on a spectrum emulator and I need som help. i still have loads left with the Z80 (not fully implemented yet) but I'm trying to get a h…

    [QUOTE=Jmc;175020]Is there any complete list of instructions that also contans tstates?[/QUOTE]

    What information do you need which isn't in the contended memory breakdown in the FAQ?
    Philip Kendall Philip Kendall March 2007 Emulators
  • Sound / Kempston EmulationHi I'm working on a spectrum emulator and I need som help. i still have loads left with the Z80 (not fully implemented yet) but I'm trying to get a h…

    ... which isn't in the contended memory breakdown in the FAQ ...
    Jmc Jmc March 2007 Emulators
  • Sound / Kempston EmulationHi I'm working on a spectrum emulator and I need som help. i still have loads left with the Z80 (not fully implemented yet) but I'm trying to get a h…

    ... want to be in the "Contended Memory" section found on [URL ...
    Woody Woody March 2007 Emulators
  • Sound / Kempston EmulationHi I'm working on a spectrum emulator and I need som help. i still have loads left with the Z80 (not fully implemented yet) but I'm trying to get a h…

    Thanks woody.
    To be honest I don't even know what "Contended Memory" is so I think I have som reading to do :P

    /Jimmy
    Jmc Jmc March 2007 Emulators
  • 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…

    ... /o accesses which can be contended.

    Not saying it ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Sinclair Miscellaneous
  • 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…

    ... did anyone think in [I]contended[/I] terms? How does this ... DMA interface deal with video contended memory?

    I mean ...
    Marcelo Marcelo March 2007 Hardware
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