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<1…16171819202122…34>
  • 128K memory testingDuring a mad half hour I decided to write a little memory tester program in BASIC using the information from the 48K service manual. Now I was wonder…

    ... decided to write a little memory tester program in BASIC using ...
    BruceNorton BruceNorton October 2006 Sinclair Basic
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... makes me wonder: How much memory does a Speccy have, included ... the memory used by the machine itself ...
    Pilsener Pilsener March 2007 Hardware
  • New Spectrum emulator for DS[url]http://zxds.raxoft.cz/[/url] [quote]Features already implemented: * Solid Z80 core - possible bugs aside, the Z80 emulation is as complete…

    [url]http://zxds.raxoft.cz/[/url]

    [ ... from the emulation of contented memory and contented port I/O ... /> * Full 128k paging support - the memory paging of ZX Spectrum 128k ...
    StuBruise StuBruise March 2007 Emulators
  • Issue 1 32K Memory Upgrade neededHi folks, as the title suggest im looking for the original sinclair memory board to make it 48k from 16k. Any other form will do or even instructions…

    ... looking for the original sinclair memory board to make it 48k ...
    ZX-MAD ZX-MAD March 2007 Wanted
  • Install Linux to Memory Card(MMC/SD etc)?For anyone that knows, would it be possible to install Linux to a Memory Card? My new PC has a card reader that supports SD, MMC, MS, SMC, CF and MD…

    ... to install Linux to a Memory Card?

    My new ...
    FrankT FrankT March 2007 Chit chat
  • List of POKEs and PEEKs/cool memory addressesI was wondering if there was a list of cool memory addresses to POKE and/or PEEK. For example, I know that PEEK 23674 tells you how long a Speccy has…

    ... was a list of cool memory addresses to POKE and/or ... Spectrum ROM Disassembly', but for memory addresses instead of assembly routines?
    Gizmoguy Gizmoguy April 2007 Sinclair Basic
  • Vague memory of a gameHi all, something's been bugging me on and off for ages. I once had a speccy game that I can't remember the name of. Sadly I can't recall many of the…

    ... a bit hazy, but my memory isn't what it was ...
    LarryLaffer LarryLaffer April 2007 Games
  • Laptop memoryIf anybody is interested before it goes on Ebay.... 2 x 512MB Hynix PC2-4200 memory modules Hardly used - I upgraded the memory a couple of days af…

    ... x 512MB Hynix PC2-4200 memory modules

    Hardly used ... - I upgraded the memory a couple of days after ...
    ADJB ADJB April 2007 Sales
  • Running code from the display memory?Is it possible to run machine code from the memory area used by the display file? If you were really out of memory and some part of screen is not u…

    ... run machine code from the memory area used by the display ... you were really out of memory and some part of screen ...
    Rickard Rickard May 2007 Development
  • Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…

    ... way to disable all onboard memory - like ROMCS but for the ... whole memory map?

    Translating the ... piece of on-board memory and map external memory over it. CP ...
    Jonathan Harston Jonathan Harston June 2007 Hardware
  • Harlequin ZX Spectrum Clone now 100% compatible!Hi all! The Harlequin ZX Spectrum clone now shows full timing compatibility with the ZX Spectrum! 8-) Both the ULA IO and memory contentions are fa…

    ... IO and memory contentions are faithfully reproduced,
    along with contended and ...
    csmith csmith July 2007 Hardware
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... bit with memory contention and floating bus stuff in ZXDS and there ...
    Patrik Rak Patrik Rak September 2007 Emulators
  • Paging MemoryAny idea why this short piece of code doesnt work, just crashes. I am just messing with paging memory in and out (not achived this yet) and reading t…

    ... am just messing with paging memory in and out (not achived ... 7F LD BC, NN Hardware Memory Switch
    ED 78 IN ...
    carlinski carlinski September 2007 Development
  • Speccy emulation with R4 - DSpec, ZXDS & SpeccyDS...Finally got an R4 card up & running, and I've installed DSpec, ZXDS & SpeccyDS onto it, but I've a couple of questions I'm hoping somebody can help w…

    ... , and I've installed DSpec, ZXDS & SpeccyDS onto it, but ... can help with?

    ZXDS - Pretty good, but seems to ...
    bobs bobs October 2007 Emulators
  • Compatible SpectrumsFollowing some recent coding exploits I've been thinking about compatibility of various models of ZX Spectrum. Yes, it's a common question on the for…

    ... +2.

    Unless my memory is wrong (it's very ... the memory contention issues. The +2a/+3 had different pages of contended ... />
    Of course, if my memory serves me wrong, and in ...
    icabod icabod October 2007 Hardware
  • Ports AccelerationOn ZX48 or 128/+2(grey) is contended and uncontended ports. For example: if you will read 512 bytes sector from IDE device to ZX ram via INI or INIR,…

    ... or 128/+2(grey) is contended and uncontended ports.
    ... half of all ports will contended (slow down by ULA). ... =1, ports is slow (contended)
    If A15=1 ... A14=1 and fast memory page is set, ports ... and slow memory page is set, ports is slow (contended)
    ...
    velesoft velesoft 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
  • Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…

    ... break from working on the ZXDS UI yesterday, so I added ... fetches the bytes without any memory contention would be nice, too ...
    Patrik Rak Patrik Rak November 2007 Emulators
  • 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 ZXDS releaseHello, new ZXDS version is ready and will appear on [URL="http://zxds.raxoft.cz"]the site[/URL] in few hours time, so make sure you check back befor…

    Hello,

    new ZXDS version is ready and will ... appear on [URL="http://zxds.raxoft.cz"]the site[/URL ...
    Patrik Rak Patrik Rak December 2007 Emulators
  • 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
  • ZXDS 0.8.0 beta 1Once again a [URL="http://zxds.raxoft.cz/"]new version[/URL] is out. Apart from adding TR-DOS and few little features I haven't touched anything else…

    Once again a [URL="http://zxds.raxoft.cz/"]new version[/URL] is out. Apart from adding TR-DOS and few little features I haven't touched anything else, but I thought you might want to have it anyway.

    Patrik
    Patrik Rak Patrik Rak June 2008 Emulators
  • Questions about ZXDSFinally got my M3 DS Real Rumble Pack, installed ZX DS and started playing with it. It looks superb, but I'm still trying to find my way around it. S…

    ... time I want to launch ZXDS I have to select 'My ... there a way to config ZXDS so that every time a ...
    zxbruno zxbruno June 2008 Emulators
  • 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
  • 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
  • ZxdsI've been playing a lot of Spectrum games recently via ZXDS, and I think I've found the perfect way [I]for me[/I] to emulate the spectrum. Playing s…

    ... of Spectrum games recently via ZXDS, and I think I've ... on my PC

    ZXDS is quick and easy and ...
    chop983 chop983 September 2008 Sinclair Miscellaneous
  • 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
<1…16171819202122…34>

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