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<1234567…34>
  • Loading data from 128 memoryAfter all these years I have come across the LOAD! in 128 basic for storing/restoring data in the 128 memory. How do I go about implementing this in…

    After all these years I have come across the LOAD! in 128 basic for storing/restoring data in the 128 memory.

    How do I go about implementing this in machine code?

    Thanks in advance...
    daveysludge daveysludge March 2014 Development
  • 128 Memory PagingI'm having a problem getting my brain around paging. Well, actually the bit I don't understand is how reading I/O ports works! I hope the collective …

    ... />
    Port 32765 controls the memory paging. Bits 0-2 determine ...
    trellis trellis August 2003 Sinclair Basic
  • Pentagon interface news from VELESOFTIt's from Xagon's board. It is about new interface for Speccy - it make Your comp compatible with Pentagon (and not only) and also it gives You up t…

    ... original version expands the ZXS 128 memory to 512kB,
    ... 128+2 mode (without changes)

    - Pentagon 512kB mode (all memory ... .
    The extended memory is of course not erased ... 128 and
    the user manually sets working range of work memory ...
    Yerz Yerz June 2004 Sinclair Miscellaneous
  • ROM paging questionAssuming the Spectrum 128 memory map and port addresses, but two custom ROMs in place of the normal Editor and BASIC, what is the most efficient way …

    Assuming the Spectrum 128 memory map and port addresses, but ...
    chev chev January 2006 Development
  • 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…

    ... not other pages on a 128 ) memory of speccy into one string ... 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
  • MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…

    ... for load from 49152 (in 128 page 7)
    ATR2.BIN ... />

    About SPECTRUM SE: 128 memory in DOCK ????
    You disable ... high 16kB of main memory on port 244 and connect ...
    velesoft velesoft January 2009 Development
  • z80 format: ED ED xx yyI've just been studying the documentation for the z80 file format: [url]http://www.worldofspectrum.org/faq/reference/z80format.htm[/url] I have a d…

    ... br /> sys.stderr.write("ERROR: Memory size is %i\n" % ... zxlib

    header, memory = zxlib.get_snapshot('some.z80')

    # Muck about with memory and header as you wish ... # header[32:34] = [0, 128]
    # memory[30464] = 201

    ...
    SkoolKid SkoolKid July 2009 Development
  • Multiload in 48K, single load in 128KIs there a list that reflects which games were multiload in 48K and had single load in 128K? (i.e.: I think Rainbow Islands loaded all levels in 128K…

    ... levels is loaded to 128 memory !!! And this 128 remix is also with ... all russian ZX clones (corrected memory paging). All in one TAP ...
    velesoft velesoft September 2009 Games
  • Spectrum +3 suspected memory faultHi, I've been using my +3 for the first time in a while and found that some games have problems with the display becoming corrupted and sometimes cr…

    Dunno if this thread may be of use to you:
    [URL="http://www.worldofspectrum.org/forums/showthread.php?t=24467&highlight=128k+memory+test"]128 Memory test[/URL]
    Arjun Arjun January 2010 Hardware
  • Real Spectrum screen flicker with SCREEN$I've written a basic loader to simply do a 'load "" screen$' based video from a divide+ however I'm finding the Spectrum can't render a screens and a…

    ... want to try something in 128 mode, give this a go ... mode (enter 'usr 0' from 128 basic which will crash the ... 48k mode from which the 128 memory paging is still available):
    Alcoholics Anonymous Alcoholics Anonymous March 2010 Development
  • Real Spectrum screen flicker with SCREEN$I've written a basic loader to simply do a 'load "" screen$' based video from a divide+ however I'm finding the Spectrum can't render a screens and a…

    ... want to try something in 128 mode, give this a go ... mode (enter 'usr 0' from 128 basic which will crash the ... 48k mode from which the 128 memory paging is still available)
    brownb2 brownb2 March 2010 Development
  • What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3

    ... the +2A has the correct 128 memory contention. There are a lot ... 3, that crash on the 128/grey +2. The compatibility issues ... +2A can be fixed. The 128/grey +2 cannot be fixed ...
    chev chev December 2010 Hardware
  • What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3

    ... the +2A has the correct 128 memory contention. There are a lot ... 3, that crash on the 128/grey +2. The compatibility issues ... +2A can be fixed. The 128/grey +2 cannot be fixed ...
    Chris A Chris A December 2010 Hardware
  • What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3

    ... the +2A has the correct 128 memory contention. There are a lot ... 3, that crash on the 128/grey +2.[/QUOTE]

    128/grey +2 cannot be fixed ...
    velesoft velesoft December 2010 Hardware
  • zx spectrum 48k loading issue (memory problem i think)Hi I have a 48k spectrum that until yesterday was working flawlessly. The spectrum seems to work fine but the problem is with loading games.All the …

    ... and im getting 128, and 32830. Running fruitcakes 128 memory diagnostic give me ...
    Macc Macc February 2011 Hardware
  • ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…

    ... with the NMI browser - (using 128 toast rack and grey +2 ... seem to mess with the 128 memory paging.
    tornado assembler and ...
    madvanman madvanman September 2012 Announcements
  • 48k memory dump to 128k???Having problems getting a 48k snapshot to load into 128k mode using ZX Spin. Tried saving 48k memory as a binary file and loading it back in 128k mo…

    Cheers guys.

    I ended up successfully loading the binary file (24800-60000) into 128 memory then assembling the remainder individually by hand!
    daveysludge daveysludge May 2014 Development
  • what extra port for extra memory ? (256K, 512K, 1024K, etc.)I know that Pentagon uses some extra bits from port 7FFD for extra memory pging: - for 512K model, bit 6 & 7 of port 7FFD - for 1024K model, bit 5, 6…

    ... from port 7FFD for extra memory pging:
    - for ... those bits for extra memory switching and if it ... Basic command SPECTRUM on +128/+2, that also turn ... keep track of a memory bank number, by combining ... established port for extra memory, other than the Pentagon ...
    secarica secarica September 2004 Sinclair Miscellaneous
  • ZX 128 compatibility for SAM COUPEI develope new internal interface for SAM COUPE. This interface contain RTC compatible with original SAM BUS and MB02+, battery backed SRAM 512kB, 51…

    ... />
    Extra features:
    MB02 memory emulation
    ZX128/Pentagon 512 ... compatibility (same memory layout and videoram switching)
    128 compatibility)
    connector for connect ...
    velesoft velesoft December 2007 Hardware
  • 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
  • Extended memory and SNApshots in emulatorsExist any snapshot fileformat that support extended memory for ZX (clones) ? I see only Z80 fileformat with 48/128 and 256kB(ZS Scorpion 256) support…

    ... memory for ZX (clones) ? I see only Z80 fileformat with 48/128 ... ? SNA 128 is easy format, but support only 128kB memory and not ... can detect ZX type+memory size(ZX48/128, Pentagon 256/512/1024 ... one file with length = zx memory size(uncompressed raw) + additional ...
    velesoft velesoft August 2009 Emulators
  • Thanatos 128k - patched to work on ANY 128 model!A little something I somehow managed to do the past couple of days. A version of Thanatos 128k which works on not just the 128 but also the +2, +2a a…

    ... works on not just the 128 but also the +2, + ... only worked on the Spectrum 128. I'm guessing this is ... find out as to what memory address it was being ... it was being loaded into memory address 25088. Copied it to ... it works on an emulated 128, +2, +2a and +3, ...
    pottyboy pottyboy March 2010 Games
  • ISO ROM 128 with TR-DOS 5.05(cz)This is new correct version of ISO ROM for ZX + BETADISK. Some extra basic command is designed specially for use in conmination with TR-DOS 5.05(cz).…

    ... video)

    ISO ROM 128(version 2010) + TR-DOS 5 ... /> = (show basic info - ramtop, used memory, etc...)
    * (start utility "KCOPY ... monitor/debugger "devastace+"
    SPECTRUM 128 - this function is unused
    velesoft velesoft April 2010 Sinclair Basic
  • Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …

    ... , this requires several kilobytes of memory - it would be much less ... :
    rept 8
    ldi ; 128 = 16*8
    endm
    ajmoss ajmoss August 2010 Development
  • Memory upgrade for ZX Spectrum 16/48This is external memory upgrade for ZX Spectrum models with 16kB ram. Can be connect also to 48kB models, but need remove 8 dram chips (from sockets …

    This is external memory upgrade for ZX Spectrum ... upgrade:
    + connect external memory to adress space 32768-65535 ... your ZX Spectrum
    + memory upgrade to 48kB,128kB,512kB ... / Pentagon 128,512,1MB
    + switch for enable/disable extra memory (128kB ...
    velesoft velesoft March 2011 Hardware
  • Dead 128 ToastrackHi! I bought 128 toastrack motherboard and seller said it's working. Maybe it was when he sent it but motherboard was only put into envelope. So it …

    Hi!

    I bought 128 toastrack motherboard and seller said ... search failures (regulators, transistors and memory ICs).

    Ippe
    lillaolle64 lillaolle64 June 2011 Hardware
  • Velesoft's ZX128+2 with 1.5MB memoryMy old ZX128+2 PROFI (grey model - spanish version) for sale here: [url]http://aukro.cz/super-zx-spectrum-128-2-1-5-mb-i2738723874.html[/url] Back s…

    ... aukro.cz/super-zx-spectrum-128-2-1-5-mb-i2738723874 ... .

    - contain MB02+ memory in full configuration 512kB rom ... socketed.

    - big 512kB memory rom is full reprogrammable direct ... IMGP8910.JPG[/img]

    128 menu in mode ZX PROFI ...
    velesoft velesoft October 2012 Sales
<1234567…34>

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  • 128 Memory PagingI'm having a problem getting my brain around paging. Well, actually the bit I don't understand is how reading I/O ports works! I hope the collective …
  • What is difference between "128" and "128+"?What is the difference between a "Spectrum 128" and a "Spectrum 128+" ??<br /> <br /> And I am not talking about the different looking +2's, etc.<br …
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