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<1…22232425262728…34>
  • ANN: SpecEmu 2.5Oh well, can't say I'm particularly proud of this, but I am bored with it :p So.... New features: * Currah &#181;Speech emulation (with various pla…

    ... 2 ROMs
    * Support for Z80 CPU speeds upto 50MHz
    Woody Woody November 2007 Emulators
  • To Winston , diag-interface.Hello to all, first, sorry for my english i'm from spain and my english is very poor. Wiston, thank you very much for your great work "diag-interface…

    ... one with video output and z80 control bus signals
    [url ...
    fulas fulas November 2007 Hardware
  • SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…

    ... , regarding port I/O: The Z80's port input/output ostensibly ...
    Marko Marko November 2007 Development
  • ULA RAS, CAS cycles, refresh and "snow effect"Hello everyone. I have a question, does anyone observed timings of RAS and CAS generated from ULA? I think there may be answer to where the "snow ef…

    ... Zilog introduced refresh cycle in Z80 as it helps in refreshing ...
    brian-82 brian-82 November 2007 Development
  • WorldbarThis morning I programmed the last piece of artificiel intelligence to my game WORLDBAR and played it in the train to work. I won/lost in 50&#37; of…

    ... and I will sent a Z80 version of today's version ...
    Dr BEEP Dr BEEP November 2007 Games
  • Spectrum ethernet... step 1.1Yeah, a tenth of a step :-) Here's the W5100 board up and WORKING: [url]http://www.alioth.net/tmp/w5100-online.jpg[/url] This is called the "Get Th…

    ... board using my ALIAC-2 Z80-based system (which some of ...
    Winston Winston November 2007 Hardware
  • undocumented Z80There is a new version of: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=2001124[/url] available at: [url]http://www.myquest.nl/nowind/?q=…

    There is a new version of:

    [url]http://www.worldofspectrum.org/infoseekid.cgi?id=2001124[/url]

    available at:

    [url]http://www.myquest.nl/nowind/?q=node/10[/url]

    Version 0.91, 18th September, 2005
    dekh dekh November 2007 Support files
  • 128 I/O portsIn The Spectrum Hardware Manual there is a small circuit on page 71/72 to allow 128 I/O ports by using IORQ+A7 to override IORQGE, so any I/O access …

    ... a transistor soldered across the Z80. I notice from the Interface ...
    Jonathan Harston Jonathan Harston November 2007 Hardware
  • Small ROMs updateI've finally got around to updating my [url=http://www.shadowmagic.org.uk/cgi-bin/spectrum/roms.pl]ROMs page[/url] with some of the ROMs I've "recent…

    ... .uk/spectrum/roms/z80-opus-32.rom.zip]Z80 OPUS v3.2 ...
    Philip Kendall Philip Kendall November 2007 Hardware
  • Assembling while tiredI really, really should not be tempted to write Z80 assembler while tired. I just spent the best part of 4 hours taking out some really, really obvi…

    ... not be tempted to write Z80 assembler while tired.

    Winston Winston November 2007 Development
  • crosassemblerHi, i need crossassembler z80 for windows. 1. compile $0000 - $3fff 2. multiple ORGs could you help me?

    Hi,

    i need crossassembler z80 for windows.
    1. compile $0000 - $3fff
    2. multiple ORGs

    could you help me?
    xxl xxl November 2007 Development
  • Having trouble compiling thisI made a small program to help me check the contents of Astro2008's code (to see how easy an English version could be made). I figured I could compil…

    ... ://zxspectrum.zidev.com/zx/text_viewer_v2.z80[/url]

    The original ...
    zxbruno zxbruno November 2007 Sinclair Miscellaneous
  • So who needs a 3.5 GHz dual core Core 2 Duo......when a 6MHz Z80 will do for a multi-user server? After hacking about more with the socket library - I had 4 simultaneous users on ALIAC-2 via eth…

    ...when a 6MHz Z80 will do for a multi- ... compiled and run on a Z80 machine (with just a couple ...
    Winston Winston November 2007 Hardware
  • Faulty +2 Grey :(Hello everyone... i was trying to fix a +2 grey board the other day, i had it for some time now. It gave a black screen (paper and border) with two …

    ... i tried known working rom, z80 and ULA on it and ...
    gtsamour gtsamour November 2007 Hardware
  • 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…

    ... />
    Since there was no Z80 decompressor, I made it, and ...
    Metalbrain Metalbrain December 2007 Development
  • ** Vu-meter competition **Apologies if this is in the wrong section. At the moment, the official number of entries is [COLOR="Red"]0[/COLOR]. :p [B][U]Why?[/U][/B] I was tr…

    ... .com/chris/zx/UV_Meter_(BloodBaz).z80[/url]
    [url]http://www ... .com/chris/zx/UV_Meter_2(BloodBaz).z80[/url]

    [B][U ...
    zxbruno zxbruno December 2007 Sinclair Miscellaneous
  • Zilog's new corporate logo...On my last visit to Zilog.com, I note they have a shiny new corporate logo. Gone is the big Z, and now the all new lowercase 'zilog' with a yellow Z.…

    ... course, the classic 8 bit Z80 we all know and love ...
    Winston Winston December 2007 Chit chat
  • It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…

    ... means I trap before the Z80 actually fetches the instruction, and ...
    Winston Winston December 2007 Hardware
  • Full throttle CPUHello, I was just wondering: do you experts know if any of the 48K games pushes the Z80 CPU to 100%? I mean, every CPU cycle is used? If so, what's t…

    Hello,
    I was just wondering: do you experts know if any of the 48K games pushes the Z80 CPU to 100%? I mean, every CPU cycle is used?
    If so, what's the game/application?

    B/R,
    Lovespider
    lovespider lovespider December 2007 Sinclair Miscellaneous
  • Random variablesI made some programs in BASIC and saved into z80 files and I realized that they have some problems with ramdom variables. For example, I programmed …

    ... in BASIC and saved into z80 files and I realized that ... program since I run this Z80 file is always the same ... /> every time I run the z80 file.

    Any reason ...
    JuanF. Ramirez JuanF. Ramirez December 2007 Sinclair Basic
  • Please help me find a spectrum book!! :)Dear all I'm new to this forum but am a long time spectrum lover. I cut my programming teeth on the speccy years ago, and have written emulators and…

    ... ready to download via tap/z80 and that would be just ...
    MikeDX MikeDX January 2008 Sinclair Miscellaneous
  • How to rotate an imageI'm working on an idea for a game and to test it I want to draw some graphics on the screen which are made up of 8x8 pixel squares (single characters…

    ... how to approach this in Z80 ?
    Mr Millside Mr Millside January 2008 Development
  • Faulty Spectrum (help requested)I have an issue 6a specci. It's Z80 has the fault m1 line problem (Multiface 128 does not work). So I decided to put in a new Z80 but unfortunately i…

    ... 6a specci. It's Z80 has the fault m1 line ... to put in a new Z80 but unfortunately it was ... a socket and put the Z80 in again. Unfortunately the ... with a working ULA and Z80 from another Spectrum (issue ... worked before I unsoldered the Z80 perfectly. It also seems ...
    UTom71 UTom71 February 2008 Hardware
  • basito: CPC Basic interpreterHello. I'm writing a Basic Interpreter compatible with the Amstrad CPC series Locomotive Basic. It's still in a very early development stage, but al…

    ... to the broader range of Z80 machines possible.

    The ...
    NotFound NotFound February 2008 Development
  • sinclair zx spectrum issue 6a (again) - how to repairHi All, Is there someone who may explain what these jumpers can be used for. [url]http://forest.no-ip.org/repair/jumpers.gif[/url] <- this is from …

    Hi All,
    Is there someone who may explain what these jumpers can be used for.
    [url]http://forest.no-ip.org/repair/jumpers.gif[/url]
    gorski gorski February 2008 Hardware
  • Anyone after 4164s...If anyone's after 4164 RAM... ... I'm in Houston at the moment, and EPO has some 4164 RAM in the shop, 100, 150 and 200ns variety, for $1 each. If …

    ... $3.75 each. Unfortunately, no Z80 DMA (I'd really like ...
    Winston Winston February 2008 Hardware
  • Flawless VictoryWell i've finally managed to get some of my speccy gear hooked up again and I must say I'm realy pleased. Got my 128k toastrack connected to my joys…

    ... image of all the .tap, .z80 and .sna files i had ...
    Saboteur Saboteur February 2008 Sinclair Miscellaneous
  • DivIDE+ and 128K HeatsinkI got my DivIDE+ yesterday and i tried it on a 48K+ at first, it worked marvelously on it, no problems at all. Today i desided to try it on my 128 H…

    ... M1 line of the Z80" but the weird thing ... the 128 and unsoldered the Z80, installing a base in ... its place. I tried another Z80 (Zilog brand), nothing.... and ... br />
    Every other Z80 i tried previously (and the ... working with one good Z80 out of other good ...
    gtsamour gtsamour February 2008 Hardware
  • Bizarre stuff in Interface 1's shadow ROMAccording to the Complete Shadow ROM disassembly, the function that exits back to the BASIC interpreter after interpreting IF1 commands is this: [co…

    ... , (FLAGS) is not a valid Z80 instruction. You can only BIT ... a few instances of invalid Z80 instructions. Presumably some assemblers recognise ...
    Winston Winston March 2008 Development
  • MDOS3 and DEMFIR for DIVIDE+ QuestionHi everybody, I just got a DivIDE+ interface. I correctly use RESIDOS and Fatware, but I was not able to use DEMFIR and MDOS3 OSes. Is there some go…

    ... on it, into a folder "Z80" in another folder "Spectrum". Other ...
    dg67 dg67 March 2008 Hardware
<1…22232425262728…34>

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
  • Another Birthday! The Game Boy Is 35!
    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
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

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