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<1…3456789…34>
  • Adventures in Programmable Logic, Part 1So I have a couple of Xilinx CPLDs, and I've downloaded the Xilinx programmable logic IDE (WebKit ISE, they call it). All 1.2 gigabytes of it. Plus S…

    ... was a device to allow memory to be paged in in ... into the lower 16K address space of a Spectrum. This needs ...
    Winston Winston October 2007 Hardware
  • Memory SticksI know some of you keep old PCs alive. 72 Pin Simms I've got half a dozen, some in pairs. Any interest and I'll try and figure out what they are. …

    ... will take PC100 if the memory switches down.) - Lowest prices paid ...
    dekh dekh November 2007 Sales
  • Problem with replacing all upper memory with 4164 chipsGuys, i have a problem with the high memory of a 4B issue. At first the board had OKI chips for high memory and one of them was faulty. Since its ea…

    ... a problem with the high memory of a 4B issue.
    memory and one of them was ... changed the wiring for the memory settings from OKI and H ... />
    If i insert the memory from a working speccy (with ...
    gtsamour gtsamour December 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…

    ... bytes, and they also need space to generate a table of ... shouldn't take any extra memory. Speed is slow, because the ...
    Metalbrain Metalbrain December 2007 Development
  • Adventures in Programmable Logic Part 2So, now armed with an Xilinx Parallel III cable, an XC9536 CPLD, a breakout board with power, a JTAG pin header and a 44-pin PLCC socket, I could try…

    ... that runs entirely in user space.

    The second bit ... needs to:
    - contain the memory page registers for the flash ...
    Winston Winston December 2007 Hardware
  • 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…

    ... of the Spectrum ROM's memory map as a jump table ... there's no significant address space where all ROMs have either ... data or unused space, so I'll have to ... can find a location in memory which no one *ever* calls ...
    Winston Winston December 2007 Hardware
  • Some more questions on various subjectsSome more questions that occur to me (mainly when I can't sleep). 1. Do DVD discs have PAL/NTSC formats? If so, how come I could play DVD regio…

    ... man-made thing visible from space is a land-fill ... You can get a 2GB memory stick for a fiver ( ... of course is re-writable memory and includes the (re) ... boring) which eats up storage space, and the programmers could ... plus I'm short of space in my room, but that ...
    ewgf ewgf January 2008 Chit chat
  • Cannibals From Outer SpaceHi, Probably, one more proof that 'Cannibals' has published by Summit (not Alternative). Has found this text fragment in a Crash magazine: "This n…

    ... releases are: Cannibals From Outer Space, 1999, Gateway To Hell and ...
    biotoxin biotoxin February 2008 Infoseek database
  • ANNOUNCE: BASin r14 is up. New SCREEN$ paintbox included.Hi all, Well, I can't sit on this any longer - so I've released it. Let's all get a good testing session going, eh? You can get the new BASin [url=…

    ... expect it to.
    Added - Memory grabber tool. This allows the ... into BASin, either directly into memory or translated into BASIC. It ... more graphics than there is space for in the palette.
    memory. This may break other stuff ...
    Dunny Dunny February 2008 Emulators
  • Probing the variables in 128K modeHello again! Briefly, I'm writing an m/c routine to read some BASIC variables. So, before I start, I try to get an idea for the structure of how var…

    ... how variables are stored in memory.

    So to learn ... +2)
    LD HL,(23627) ; VARS
    NEXTVAR
    LD A ...
    Digital Prawn Digital Prawn March 2008 Development
  • Memory paging in 128 KB - 64KB RAM possible?I have found a quote in Spectrum 3 manual (available at WOS) -------------------- In the +3, we have crammed in more than twice the amount of memory…

    ...
    twice the amount of memory than can comfortably fit. While ... the processor) always 'sees' the memory as 16K of
    ROM ... program to "disconnect" the ROM memory completely and to write to ... the lowest 16 KB of memory with proper paging?
    I ...
    Ralf Ralf March 2008 Development
  • Packing numbers in as least memory as possibleI am writing some code for drawing vector lines etc. on the screen. These need to be stored in memory and I want to pack them in a smaller area as po…

    ... need to be stored in memory and I want to pack ...
    carlinski carlinski March 2008 Development
  • Space InvadersI've just been enjoying myself playing Space Raiders. Which variant of Space Invaders do you lot out there think is the best?

    I've just been enjoying myself playing Space Raiders. Which variant of Space Invaders do you lot out there think is the best?
    hypostomus hypostomus April 2008 Games
  • Specdrum 3 W.I.PIts a new app so i needed a new thread sorry :) I am sorry i have been neglecting this site and i have been working hard on Specdrum 3 Honest i hav…

    ... are now 20 samples in memory plus a 3 octave bass ... will add the 16 songs memory or i may just write ... now

    watch this space

    Lee broadhurst
    wadfm wadfm April 2008 Announcements
  • Games of Space ConquestAre there any good space conquest strategy games on the Spectrum? I'm interested in games where you have to conquer planets and use their resources …

    Are there any good space conquest strategy games on the ...
    snigfarp snigfarp May 2008 Games
  • Isometric games map formatI'm interested in your opinion: What is the best way to store map data for isometric games ? SOmething like Head over heels ? I read in one place t…

    ... occupied very small chunk of memory...

    If I would ... most of it is empty space...
    Some sort of packing ...
    popmilo popmilo June 2008 Development
  • Games like Heroquest and Space CrusadeI quite like Heroquest and Space Crusade. Can anybody recommend any games like these two?

    I quite like Heroquest and Space Crusade.

    Can anybody recommend any games like these two?
    BigBadMick BigBadMick June 2008 Games
  • Memory management in new IDE interfacesHi all, I have a question concerning the memory (RAM) management of the new mass storage devices like ZXCF+ or others. The mostly come with 512kb o…

    ... have a question concerning the memory (RAM) management of the new ... is now, how is the memory paged in or out or ... does the Speccy address the memory? Is this done in kind ... of memory areas or something else? My ...
    maskenlos maskenlos July 2008 Hardware
  • Space LegoWas anyone else into Space Lego. I was into in tons from late 70s to about 81. Anyhoo, my mum phoned me asking if she should chuck out my space lego,…

    Was anyone else into Space Lego. I was into in ... she should chuck out my space lego, saying that it's ... /> Did anyone else love their space lego?
    Ælita Ælita August 2008 Chit chat
  • How to contend memoryHow has this been achieved, electronically? Is there a "memory ready"-line for each bank, or something?

    How has this been achieved, electronically? Is there a "memory ready"-line for each bank, or something?
    wilsonsamm wilsonsamm August 2008 Chit chat
  • Name that GameHi all, I'm looking for a game that used to be on MSX, and almost certain it had a Speccy port too - but my memory is rather hopeless :D It's a rac…

    ... Speccy port too - but my memory is rather hopeless :D
    space bar?) and pretty much go ...
    Echo Echo August 2008 Games
  • Some more questions for the WOS geniuses to ponderSome questions whilst I'm waiting here: 1.Why do cars need ariels to receive radio stations? I mean, you're driving around in a lump of metal, so w…

    ... />

    2 Is flash memory fragmentation a problem? I mean ... place, but doesn't flash memory have no moving parts, and ... only have [I]The Great Space Race in my pocket[/I ... 8-bits, the speed and memory limitations made complex AI impossible ...
    ewgf ewgf October 2008 Chit chat
  • Error Message on memory testI have just tried PRINT PEEK 23732 + PEEK 23733 * 256 on what I think is a 48K rubber key machine and instead of getting either (a) for a 48k unit…

    ... /> Is this indicative of screwed memory ?
    ADJB ADJB November 2008 Hardware
  • Memory and BasicQuestions 1. How much memory is available for Basic Progs? 2. How do I check how much is left? 3. How much memory does an array take up?

    Questions

    1. How much memory is available for Basic Progs?
    2. How do I check how much is left?
    3. How much memory does an array take up?
    chop983 chop983 November 2008 Sinclair Basic
  • Dangerous Allram Mode On +2a / +3ZX Spectrum 128+2A and +3 support allram feature on port 1FFD. On this ZX models is very dangerous set allram if is connect any interface with extern…

    ... connect any interface with external memory. For example: interface DIVIDE ... and CPU will access to memory space 0-16383, then computer or ... can be damaged. DIVIDE detect memory access to low 16kB, ... data will collide with external memory = computer or DIVIDE (or ...
    velesoft velesoft December 2008 Hardware
  • New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…

    ... V, right is B to SPACE. Here is the program:
    ld bc,32766 ;read keyboard space to b
    in a ... improvements, optimizations for speed or memory, add-ons etc most welcome ...
    bigjon bigjon December 2008 Development
  • Crash Magazine, the ZX, and the power of nostalgiaI'm currently selling some Crash mags (see Sales section of WOS *PLUG!*) and I started thinking about the power of nostalgia and what keeps us intere…

    ... them as a waste of space. I too was a fan ... you enjoyed this trip through memory lane, and made you remember ...
    SteveP SteveP December 2008 Sinclair Miscellaneous
  • 70's space film with Jim Bob?Can anyone remember the name of the space film with Jim Bob from the Waltons? I think it might have been an early 80's space film with Hanibal from …

    Can anyone remember the name of the space film with Jim Bob from the Waltons? I think it might have been an early 80's space film with Hanibal from the A Team also starring.

    Thanks.
    HonoredShadow HonoredShadow December 2008 Chit chat
  • How does the Speccy deal with the Character Set?Hi All, Can anyone spare a little time to explain to me the basic Assembly method of how the Speccy interprets and retrieves Characters to print on …

    ... character set is accessed via memory location 23606. Here the 'pointing ... byte of the first character ('Space') then lies 256 bytes beyond ... each character within the character memory area and jump around the ...
    Jagd Tiger Jagd Tiger February 2009 Development
  • Oldest DOS-based Spectrum emulator?The first Spectrum emulator I ever saw on a PC was circa 1990/91 and was shown to me by Arc Developments (Forgotten Worlds, Crack Down, Bart vs The S…

    ... , Crack Down, Bart vs The Space Mutants, etc) on a then ... 't quite tally with my memory. Am I remembering this wrong ...
    Rainbird Rich Rainbird Rich February 2009 Emulators
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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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