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Search Again :: Adv Search 1000 results in 0.023s
<1234567…34>
  • Problem with se basicI use MB02 memory paging (ram 16kB instead 48rom) and via one OUT 23,xx can switch between original 48 rom and SE ROM. But if I write basic program i…

    I use MB02 memory paging (ram 16kB instead 48rom) and via one OUT 23,xx can switch between original 48 rom and SE ROM. But if I write basic program in 48 basic and switch to SE BASIC then show basic incorrect. Why ?
    velesoft velesoft December 2010 Sinclair Basic
  • 128k Screen Flipping - Sample Code PleaseI know this has been covered before, but I cannot find out code to do the following: On a 128k Spectrum tell the speccy to display from address 4915…

    ... system; ROM 1 contains 48k BASIC.
    Bit 5 If ... br /> | Bank 0 | Bank 1 | Bank 2 | Bank 3 | Bank 4 | Bank 5 | Bank 6 | Bank 7 |
    An example of a typical bank switch on the 128 is:
    Fikee Fikee February 2006 Development
  • 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…

    ... read. Then it could switch automatically to your RAM page ... The NMI menu can't switch directly to the Task Manager ... a bank-switch ResiDOS-style from the interrupted bank (probably a BASIC ROM ... it should switch back to the interrupted bank and continue execution ...
    glancaster glancaster April 2008 Development
  • ANN: ResiDOS v2.25 and +3e ROMS v1.38 releasedA major new release of ResiDOS, v2.25, is now available! The most important new features are commands and functions allowing new extended streams an…

    ... RST 8 (switch to ResiDOS bank).
    [*]ResiDOS bank (1) active.
    [*]BASIC bank (0 ... operations occur:
    [LIST]
    [*]BASIC bank (0) switched in
    [*]ResiDOS ... back
    [/LIST]
    [*]Finally, BASIC bank (0) is switched back in ...
    glancaster glancaster July 2009 Hardware
  • Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …

    ... any ports at all... the bank selection and write protect switching ... effort - all you need for basic bank switching on an IO port ... bother with a write protect switch, the unlock sequence on the ...
    Winston Winston December 2009 Hardware
  • Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …

    ... effort - all you need for basic bank switching on an IO port ... /> Perhaps decoding a port to switch bank could be useful to some ... alternate 128k rom sets, the switch is perfectly adequate
    < ... bother with a write protect switch, the unlock sequence on the ...
    guesser guesser December 2009 Hardware
  • The "Kiddification" Continuum : "serious" 48k software versus "kiddified"128k software?Of course this is a gross simplification . The idea of a straight line continuum with "serious" 48k software on one side and "kiddified" 128k softwa…

    ... br />
    Tons of BASIC books on the ZX Spectrum ... party books on 128K BASIC (apart from the manuals ... the idea of an introductory BASIC book . But the ... write a book for BASIC users which would also ... is impossible to "BANK SWITCH" in BASIC 128k it would be ...
    harriusherbartio harriusherbartio February 2022 Games
  • ZX Spectrum and (real) B A S I CSometimes ago there was a thread "how spectrum changed your lives". Another thread dealt with "how to copy spectrum screens using basic not using co…

    ... copy spectrum screens using basic not using complicated that ... to learn ? language called BASIC. You switch on the computer, you ... languages to understand how "Visual Basic" works.
    In my ... eyes "Visual Basic" is not a "BASIC" at all because Basic means: ?[ ...
    ingo ingo October 2007 Sinclair Miscellaneous
  • PS/2 Keyboard for +2A/+2B/+3?Hi everyone. I know there are several options (both DIY and off-the-shelf) to add PS/2 keyboard support to original models (and right up to the +2), …

    ... solutions and can switch between them with a basic KVM switch, but for ...
    Megatron-UK Megatron-UK January 2019 Hardware
  • 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 …

    ... in thinking that when in BASIC, Bank 2 is at 8000h ... and Bank 0 is at C000h, and Bank 7 is ... the only bank used as a ... required by the BASIC program? (I notice that bank 0 always ... gets paged back in on return to BASIC).
    trellis trellis August 2003 Sinclair Basic
  • 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 …

    ... in thinking that when in BASIC, Bank 2 is at 8000h and ... 0 as required by the BASIC program?
    [/quote]


    What address does your bank copying code run at?
    bank 0 always gets paged back in on return to BASIC ...
    Woody Woody August 2003 Sinclair Basic
  • Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …

    ... ]
    which does a bank-switch into bank 3 and tests that RAM ... that been printed via $C000 bank 3. If this doesn't ...
    Spirantho Spirantho September 2005 Sinclair Miscellaneous
  • Wanted Issue 1 32K DaughterboardBit of a long shot i know but original or if anyone can make one i got cash waiting. [IMG]http://img.photobucket.com/albums/v322/Sloposse/Sinclair/s…

    ... details [assembler] of how to bank switch the additional memory in and ...
    jp jp April 2008 Wanted
  • Wanted Issue 1 32K DaughterboardBit of a long shot i know but original or if anyone can make one i got cash waiting. [IMG]http://img.photobucket.com/albums/v322/Sloposse/Sinclair/s…

    ... details [assembler] of how to bank switch the additional memory in and ...
    ZX-MAD ZX-MAD April 2008 Wanted
  • I want a DivIDE but....I need help, I want to get a DivIDE but I need some advice. Which one do I go for DivIDE or RWAPS DivIDE+ (when they become available). Which firmwa…

    ... crash occurs with a writeable-bank in place (or that causes ... a writeable bank to be switched in). Most ... the time, a write-protected BASIC bank is likely to be in ...
    glancaster glancaster August 2009 Development
  • Mass storage - why backup battery?I wasn't sure to post this under "hardware" or "development", but here goes: There are these mass storage devices for ZX Spectrum, and on many desig…

    ... to do with how you bank switch with a Spectrum. Whether you ... NVRAM on these devices *is* bank switched, and it appears as ...
    Winston Winston February 2010 Hardware
  • A question about M1 cyclesI'm writing an interrupt routine that, after the usual register pushes, will jump to a location of my choice with a [b]JP (IY)[/b] instruction. If I…

    ... have your interrupt routine switch banks in another memory region ... [I]have to[/I] bank-switch within your interrupt routine, try ... the OUT instruction to actually switch the block.
    [/LIST ... such "update memory location, switch block" in your main program ...
    RetroTechie RetroTechie July 2010 Development
  • Problem with se basicI use MB02 memory paging (ram 16kB instead 48rom) and via one OUT 23,xx can switch between original 48 rom and SE ROM. But if I write basic program i…

    ... one OUT 23,xx can switch between original 48 rom and ... write basic program in 48 basic and switch to SE BASIC then show basic incorrect ... ?[/QUOTE]

    Because SE Basic is radically different from the ... don't exist in SE Basic and vice versa. Only the ...
    chev chev December 2010 Sinclair Basic
  • binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…

    ... code inserted to make the bank switch happen.

    I wonder ... if needs be.

    Bank switching is manual though.
    csmith csmith June 2011 Development
  • Maritrini and Cray 5 loading problemsHas anyone else here had issues loading either of these on a 128k? No matter what I try, both these games refuse to load properly. I can get both t…

    ... could be incompatible with a bank switch.

    So, the "REUBICA ... /> and #F8
    Bank: or 0 ;POKE to Bank+1 address to ... change which RAM bank to write to
    ld ...
    mcleod_ideafix mcleod_ideafix March 2012 Games
  • Exilei\'m sure this has been brought up before but couldn't find a thread in 'New Game Ideas'. Why did the Spectrum never get a port of the BBC game Exile…

    ... scroll in a spare uncontended bank, but you're then limited ... ]
    PUSH/POP copy with bank switch between fetch and store should ...
    Fikee Fikee March 2012 New game ideas
  • Exilei\'m sure this has been brought up before but couldn't find a thread in 'New Game Ideas'. Why did the Spectrum never get a port of the BBC game Exile…

    ... ;613293]PUSH/POP copy with bank switch between fetch and store should ...
    joefish joefish March 2012 New game ideas
  • 80x24 mode (Timex required)Hopefully Martijn will be adding this to the archive soon, but until then grab it here: [url]https://dl.dropbox.com/u/15659782/BASIC80.zip[/url] Th…

    ... offset.

    The 128K bank switch alters different address line for ... its second bank. But, they could have implemented ... mode *as well*, with whatever bank offset they wanted, including 8K ...
    csmith csmith August 2012 Sinclair Basic
  • Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …

    ... because the 128K ULA can switch between screens. That means that ... game starts is causing a bank switch, making the backup screen used ...
    Spirantho Spirantho August 2012 Hardware
  • LOOK at the size of my Rom/EmulatorOk, we have 16k, 48k, 128k, even a 256 odd k Rom/Emulator But I want more :p Is there anything out there now or been worked on to give more, as the…

    ... access more than 64k you bank switch memory and you can swap ...
    guesser guesser October 2013 Sinclair Miscellaneous
  • Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…

    Easy way how 2x accelerate basic on russian ZX clone ZS ... . :-D
    At begin of basic program read port 32765:
    basic line active 7MHz turbo mode ... IN 8189 THEN ;this basic line switch CPU back to 3.5MHz ...
    velesoft velesoft January 2014 Sinclair Basic
  • A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…

    ... changed the FLAGS variable to switch from 128k to 48k. As ... be locked.
    - Although BASIC will switch to 48k (and you won ... an out to $1ffd) to switch it off.
    Zup Zup February 2014 Development
  • A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…

    ... changed the FLAGS variable to switch from 128k to 48k. As ... be locked.
    - Although BASIC will switch to 48k (and you won ... an out to $1ffd) to switch it off.[/QUOTE]

    Speccy_James Speccy_James February 2014 Development
  • PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…

    ... poweron delay: I added a switch and modified the CPLD so ... when the input from the switch is high.

    But ... when I already entered 48K BASIC.
    When I'm in ... the 128K menu or 128K BASIC, and switch in the PlusDlite, it ...
    bverstee bverstee February 2014 Hardware
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... a 128K game, with a bank-switch in between blocks.

    stephenw32768 stephenw32768 June 2015 Development
<1234567…34>

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