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<1…13141516171819…34>
  • machine IDs for .z80 snapshotsHi, is there s.o. officially in charge for the .z80 file format? while upgrading zxsp's save_z80 routine i added new machine IDs for the Specci vari…

    ... can have memory as low as 1K. Then the ram pages must ...
    Kio Kio August 2007 Emulators
  • switchable ROM`sHi all, As I own a few Spectrum and Commodore computers, I am wandering a few years ago on the C64 there was a switchable ROM the normal C64 and a Ji…

    [QUOTE=jonathan;206925]If memory serves Simon Goodwin wrote an ... /showmag.cgi?mag=Crash/Issue54/Pages/Crash5400071.jpg]here[/url]
    FrankT FrankT August 2007 Sinclair Miscellaneous
  • 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…

    ... cycle contended according to the memory contention pattern and the ... ~MREQ goes low the memory contention pattern is selected, before ... applies [I]never [/I]the memory contention pattern.

    ... .shtml[/url] and the pages before and after it, ...
    csmith csmith September 2007 Emulators
  • Robert Jordan, fantasy writer, has passed awayRobert Jordan died at the weekend. :( :( :( :( :( :( Fucking crap. I've been reading the Wheel of Time since 1995, and now IT WILL NEVER BE COMPLE…

    ... the 12th book as A Memory of Light. As one of ... Memory of Light would remain one volume "whether it is 1500 pages ...
    VincentAC VincentAC September 2007 Chit chat
  • 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…

    ... 32768-49151, this part of memory can not be paged in ... you care about memory contention) - either of those pages can be paged ...
    gasman gasman September 2007 Development
  • Spectrum games coming to the WiiJust received this [url]http://www.n-europe.com/news.php?nid=11037[/url] earlier this morning from my brother, who knows of my love of old compute…

    ... scroll up down on web pages and left right shoulder buttons ... admittedly the superior speed and memory of a decent PC, combined ...
    ewgf ewgf September 2007 Games
  • 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 ... to the memory contention issues. The +2a/+3 had different pages of ... />
    Of course, if my memory serves me wrong, and in ... clock for reading the screen memory and that is probably the ...
    ingo ingo October 2007 Hardware
  • SAM gets ethernetWhilst off topic - head over to [url]www.samcoupe.com[/url]. Colins got his ethernet board for the SAM available to buy and some interesting news ab…

    ... chip, which is a memory mapped ethernet controller with TCP ... . Aside from the register memory, it has 32 kbyte ... of memory for socket buffers. I ... likely to be a bit memory hungry), plus a CPLD ... to make this memory mappable in 8K pages, and any page ...
    Winston Winston October 2007 Hardware
  • Loading ScreensWhat method of revealling loading screens can be achieved in BASIC or is the only one which can be done the one which reveals it line by line over an…

    ... ( linear not other pages on a 128 ) memory of speccy into one ... string e.g. of this memory.

    The POKE command ... POKE a whole string into memory from the start adress given ...
    ingo ingo October 2007 Development
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... just contains some extra memory to do its stuff ... that there's nothing else pages the interface in, though ... call it, this code pages in the IF1 and calls ... then on return pages the Microdriver's memory back in and ... read from a non-existent memory chip, you'll get ...
    Winston Winston November 2007 Hardware
  • Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?

    ... Writing to memory
    [*]Reading from memory
    [*]Execution from memory[/LIST]
    pages the Microdriver's memory back in and ... and the Spectrum's memory is only restored when ... the stack overwrites the screen memory).[/QUOTE]

    ...
    zub zub November 2007 Hardware
  • Multi-tasking OS on the Spectrum?Do you think it is possible to build a multi-tasking operating system on the Spectrum? That is, most important the ability to have several task run…

    ... under Winston's reference to memory). The interrupt routine could do ... all code running on separate pages of the 128K system - in ...
    BloodBaz BloodBaz November 2007 Development
  • Multi-tasking OS on the Spectrum?Do you think it is possible to build a multi-tasking operating system on the Spectrum? That is, most important the ability to have several task run…

    ... 'm told that its kernel pages in chunks of 16K. The ... address space, although with external memory, you can at least page ...
    zub zub November 2007 Development
  • The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…

    ... be much simpler (two 8K pages to be mapped instead of ... four 4K pages) and may allow for nice ... 'm planning to use flash memory for the ROM with 4K ...
    Winston Winston November 2007 Hardware
  • New Spectrum game - Isotopia by OctocomOctocom, the guys who made BASIC programmed games such as Pandemia or Insert Coins, released yesterday their very first compiled BASIC game: Isotopia…

    ... make a difference are the memory-paging & contention timing differences ... /+3 you use the new +3DOS syntax, i.e. LOAD "m ...
    na_th_an na_th_an December 2007 Games
  • 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…

    ... 0x3FF8 to 0x3FFF and then pages in my ROM.

    pages in our ROM.

    memory fetches, latches on the falling ... of the system clock (on memory reads, RD+MREQ are deasserted ...
    Winston Winston December 2007 Hardware
  • RIP NetscapeWell, its glory days are long over but it's almost sad to hear that good old [URL="http://www.msnbc.msn.com/id/22422675/wid/11915829?gt1=10737"]Netsc…

    ... it and pre-fetches the pages into memory. When you do click ... link it is called from memory cache so gives the impression ...
    IN31 IN31 December 2007 Chit chat
  • RIP NetscapeWell, its glory days are long over but it's almost sad to hear that good old [URL="http://www.msnbc.msn.com/id/22422675/wid/11915829?gt1=10737"]Netsc…

    ... it and pre-fetches the pages into memory. When you do click ... link it is called from memory cache so gives the impression ...
    Skarpo Skarpo December 2007 Chit chat
  • Oh look, more Spectrum reviews(x-post to CSS as part of general self-publicising) Part of the reason I've been more active (or at least less lurky) on CSS and here of late is tha…

    ... looking at the Cassette 50 pages.[/QUOTE]

    No - it ... to be displayed on its memory ;)

    I was quite ... 50 games on j00ce's pages, because while I have heard ...
    XTM of TMG XTM of TMG January 2008 Games
  • Reviews needed for a Speccy book[B]Edit - this link will be updated quite often... [url=http://www.sabremultimedia.com/speccybook/speccybook.htm]Speccy book[/url][/B] [B]Current w…

    ... />
    So far now 168 pages, 72,311 words (and i ... game review helps jog someones memory to think 'oh god yeah ...
    psj3809 psj3809 January 2008 Games
  • BASIC type-insThose type-ins from mags like sinclair programs etc. Was it just me, or did you often spend ages on them to find out THEY DIDN'T WORK!!! Did nobo…

    [QUOTE=neoncherry;241493]My memory is that they regularly had ... odd correction in the letters pages, which gives maybe 80 corrected ... disproportionate significance, which distorts the memory when recollecting after so many ...
    Battle Bunny Battle Bunny January 2008 Games
  • Name this game pleaseI think there is a rocket with platforms in both sides, and the hero is a robot that must take fuel (or pieces maybe) to the rocket; it isn't Jetpac.…

    ... /showmag.cgi?mag=SinclairUser/Issue037/Pages/SinclairUser03700023.jpg[/url]


    I had a vague memory of an advert for a ...
    Zaraks Zaraks January 2008 Games
  • SpecDrum2 updatedHello again, just to let you know that the specdrum2 program has now been updated and is in the remakes section and now does not have the enter code…

    ... /> i have upped the pattern memory to 128 now from 64 ...
    added return to previous pages say for example you are ...
    wadfm wadfm February 2008 Announcements
  • Genie DOS +D ROMWhat does this do, i think its for the plus d but the emulators wond use it Anyone?

    ... snapshots would only save the memory that was actually used, so ... get heavily advertised in the pages of FORMAT (which is where ...
    PeeJay PeeJay February 2008 Hardware
  • My 2003 XP Comp VS new quad core Vista compMy 2003 built Win XP computer pissed all over our universities very latest Win Vista Quad Core computers. I had a photoshop file containing a 205 La…

    ... uses it's own gammy memory management that dates back to ... well with Window's own memory management, particularly on Vista which ... more aggressive about utilizing memory now that zeroing pages is a relatively ...
    AndyC AndyC March 2008 Chit chat
  • My 2003 XP Comp VS new quad core Vista compMy 2003 built Win XP computer pissed all over our universities very latest Win Vista Quad Core computers. I had a photoshop file containing a 205 La…

    ... uses it's own gammy memory management that dates back to ... well with Window's own memory management, particularly on Vista which ... more aggressive about utilizing memory now that zeroing pages is a relatively ...
    Scottie_uk Scottie_uk March 2008 Chit chat
  • Dangerous Z80 Assembly CommandHave been reading Toni Bakers' "Mastering MC On Ya Speccy" book and came across the list of Z80 commands in the dictionary section. Page 102 "[b]IM…

    ... "" CODE, and then examine the memory with the Spin debugger I ... , the 128 Basic editor always pages in Bank 7 back into ...
    Digital Prawn Digital Prawn March 2008 Sinclair Miscellaneous
  • Dangerous Z80 Assembly CommandHave been reading Toni Bakers' "Mastering MC On Ya Speccy" book and came across the list of Z80 commands in the dictionary section. Page 102 "[b]IM…

    ... (in bank 0), to save memory, and more importantly so I ... />
    My interrupt handler simply pages in Bank 0, executes the ... chip music routine, and then pages the previous bank Back in ...
    Digital Prawn Digital Prawn March 2008 Sinclair Miscellaneous
  • Spectrum Ethernet update...in which a toastrack 128K machine prods a machine outside of my LAN for the first time. [url]http://spectrum.alioth.net/doc/index.php/Current_eve…

    ... with it. Since ResiDOS permanently pages in memory for these interfaces (ie ...
    glancaster glancaster March 2008 Hardware
  • MB02+ software and system developmentsThe following text was (before last modification) first published here: [url]http://www.sintech-shop.com/forum/board.php?boardid=20[/url] As discuss…

    ... 16k blocks into 0... 16kB memory space of Spectrum.
    RAM ... select one of 32 possible pages
    Bit 5 has to ...
    ingo ingo April 2008 Development
<1…13141516171819…34>

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