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<1234567…34>
  • automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …

    ... for the program to find whereabouts in memory it was, as there ... 's no command to retrieve the value in ... return the displacement in 'bc'. The value for ORG can ... ld (hl),e ;DE=new value
    inc hl
    ...
    Battle Bunny Battle Bunny August 2011 Development
  • automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …

    ... way for the program to find whereabouts in memory it was, as there ... 's no command to retrieve the value in ... SP could be adjusted to find it again.[/QUOTE]
    A ... call also puts its address in BC

    EDIT: Oh ...
    mcleod_ideafix mcleod_ideafix September 2014 Development
  • TommyGun 0.9.x updates** Should be available via the utilities page soon! Please be patient :-) ** I'll be posting all future updates in this thread, instead of creating …

    ... a fantastic machine, with built-in monitor and disk drives, and ... remember you could POKE a value in memory to protect the top of ... pretty cool spreadsheet like program in BASIC. It scrolled up and ...
    JamesD JamesD February 2007 Development
  • [WANTED] ASM routinesHi there, 1.) i really need 5-6 working and well commented routines, showing assembler capabilities. They should be simple, but not too much complic…

    ... to show results of conversion in debugger of [B][U]ZXSpin ... [/U][/B] and in what form they should be ... a binary value in memory, or a register, to a BCD value in memory, or a ... debugger you can view that memory/register, otherwise you'll need ...
    bobs bobs June 2008 Emulators
  • converting mp3 to zx importfile.is it possible?Hi peeps I am just looking through old threads and browsing through music tools on the zx in particular converting or creating ,what i am looking for…

    ... by gasman's routine in time originaly dedicated to ... d still need to find space in memory to store the sample ... - and bearing in mind that ... time I got involved in JSW engine internals[/url], ... the beeper and AY in the past, but that ...
    gasman gasman March 2012 Development
  • Asking for help: ZXBC to ASM routine translationHallo, In order to save some bytes and gain speed, I'm asking for translation of a very simple ZXBC routine to Assembler [code] sub light(x as uinteg…

    ... not all the parameters come in stacked!

    Probably ... It takes a bit more memory than the same sub fastcalled ... Assemble which then stored counter value in Memory to return it. Your ... ;'Counter for bytes to search in level
    candles2:
    ...
    LCD LCD November 2012 Development
  • ScrollsHello. Ive been working in scroll routines and I want to show you them. First, one vertical 2 pixels scroll routine with 13 sprites [youtube]D-T3…

    ... game or engine :)

    In such case use could:

    - store a value in memory - set it to 0 after ... interrupt code), then check the value before screen redraw

    Ralf Ralf May 2014 Development
  • New Game - CR2: The EscapeHi, I'd just like to announce my new ZX Spectrum 48k title CR: The Escape, a platform game, which is available to download [url="http://stephennichol…

    ... /> Was there any room(s) in particular you were having a ... problem with the falling in?

    [/quote]

    find space in memory for new sounds but ...
    RetroPhase2014 RetroPhase2014 September 2015 Brand new software
  • Hacker QuestionHello hackers, as some of you might know, I am supervising the work on converting games from TR-Dos or TAP to the +D or Opus disk format for our SC…

    ... The numbers you see in a listing of a Basic ... that follow each such numeric value in memory. In this case, they must ... . You will see a value of #0E after each ... in the middle of it there's a 2-byte 'real value ... 'WHY' can be found in 'why bother with a computer ...
    Hikaru Hikaru August 2016 Sinclair Miscellaneous
  • finding largest value (z80 assembly)suppose we have to write z80 program which requires to find the biggest value in a block of memory starts from the address 101h until address stored …

    ... which requires to find the biggest value in a block of memory starts from ... the address 101h until address stored in 100h ... of block stored in 100h),then put this value in address 200h
    4electros 4electros April 2006 Development
  • Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…

    ... of first scan of character in video memory
    ld b,8 ... Y2 Y1 Y0

    Memory address (ZX Spectrum arrangement)
    value in DE already points to the ... , wasn't it?). Besides, I find it more intuitive than the ...
    mcleod_ideafix mcleod_ideafix September 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 ... accordingly, then write the new value back out.
    < ... read the current value into A. IN A,(nn) seems ... - you set the value in BC to the port ... OUT (C),A ;Write new value to 32765

    ...
    trellis trellis August 2003 Sinclair Basic
  • Help me find myself in a Speccy magI've been boasting to the kids about my programming prowess from years ago, problem is i don't have the spectrum magazine i was mentioned in anymore.…

    ... spectrum magazine i was mentioned in anymore.

    I've ... YU archive but can't find anything, not sure which mag ... it was in now after all these years ...
    quiffy2003 quiffy2003 March 2006 Sinclair Miscellaneous
  • Where to find games in London?Hi, The wife and I are going to visit London for a weekend in early November and I would like to ask for advice on where to find gamestores, maybe …

    ... visit London for a weekend in early November and I would ... for advice on where to find gamestores, maybe I could pick ... to be a bit lower in the UK compared to Denmark ...
    8bitten 8bitten October 2007 Chit chat
  • 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…

    ... . These need to be stored in memory and I want to pack ... them in a smaller area as possible ... , but could this be stored in one byte instead of two ...
    carlinski carlinski March 2008 Development
  • Erase part of memory in SPIN?A question for SPIN (or perhaps Spectaculator). If I have a game loaded in memory and would like to erase part of the memory while keeping the rest …

    ... I have a game loaded in memory and would like to erase ... part of the memory while keeping the rest of ... like to erase the screen memory and watch what will happen ...
    Rickard Rickard August 2009 Emulators
  • Can't find this in the Archive.....I was starting to play through some old games when I came across this...I wondered if it maybe had an english name, but can't find any reference to i…

    ... can't find any reference to it anywhere in the Archive...
    deadpan666 deadpan666 January 2010 Games
  • Average PC Memory size increasing by 48K every half hourAs I'm absolutely sure everybody here is aware, Moore's law states that the number of transisters in a device will double on average every 2 years. …

    ... long it takes for average memory in a baseline PC to grow ... it still is possible to find 1GB in Netbooks, the desktop minimum ... ]So, the average amount of memory in a PC is rising by ... , in 4 years, every 7 minutes, and so on (assuming scientists find ...
    takapa takapa August 2010 Chit chat
  • Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …

    ... snapshot the display or memory to disc. I modified ... function to save a memory dump of the Spectrum ... . I would be examining memory to find this text:
    ... terminator BYTE with the value 080h at 089FEh, I ... now I know the location in memory.

    Stay ...
    ASM ASM November 2010 Development
  • Help needen to find screenshots in WOSHello, I have now spent two hours to find a page in WOS which showed screenshots/loading screens. The Shots were listed in alphabetic order, 4 (i thi…

    ... spent two hours to find a page in WOS which showed screenshots ... .
    The Shots were listed in alphabetic order, 4 (i think ... ) in each row.
    I saw them - but I can't find ... it is almost impossile to find something.

    Can anybody ...
    Tommy F-H Tommy F-H November 2010 Support files
  • Fairlight 2 again - ending, proposed fixOnce again I've been trying to work out Fairlight 2's infamous ending. I think that the following POKE should change the game so that a key could po…

    ... version: the aim is to find this sequence:

    ... I've chosen this value correctly then all of the ... locked doors in part 2 will need ... then this starts at $d4f1 in memory page 1. If you're ... need to find this sequence and POKE the value as required ...
    mjwilson mjwilson June 2011 Games
  • Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…

    ... a few locations of memory. For reasions I cant ... want to address a value in C, why use 03 ... .)

    Time to find out...

    Register ... be updating the registers returned value... thats weird.

    find at all. From the ...
    wibble wibble August 2013 Development
  • Compact Flash Card In "Memory Mode" - (Help)Hello my fellow WoS'ers I have been developing a Z80 8bit interface with a compact flash card port based on Pera's ZXCF "memory mode" interface for …

    ... based on Pera's ZXCF "memory mode" interface for the +2AB ... that some one out here in the land of WoS would ...
    Zetr0 Zetr0 January 2014 Hardware
  • Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…

    ... the routines that are paged in run slightly slower.

    in memory behaves itself as it should ... the TAP or perhaps the value of 65535 which also didn ... the TAP?

    Thanks in advance...
    daveysludge daveysludge October 2014 Development
  • Missing in ActionThe more I go in my loft the more I find "Missing in Action" files . Trouble is I am new to this. I have done the tzx's for them but cannot upload th…

    ... I go in my loft the more I find "Missing in Action" files ... they just crash . So from memory I think it was SAVE ... Forge was my "breakthrough moment" in able to do some TZXing ...
    harriusherbartio harriusherbartio August 2015 MIA/STP/SDP
  • TommyGun with Debugginghttp://goo.gl/HfSXev?gdriveurl Ok, so this is a pretty big release for me and I have added a lot of stuff into the code editor. Mainly of course …

    ... through the code and hopefully find the issue.
    [b ... emulator will instantly know the value in this feature.
    I ... .
    Does not have memory contention.
    Does not ... /> Step Over
    Step In
    Step Out
    ...
    Kiwi Kiwi July 2016 Development
  • Tutorial: Using UDGs in SpecBASSpecBAS is capable of using graphics mode, in a similar manner to the original Spectrum. Like most things though, the extended nature of SPecBAS's ab…

    ... Which displays the currently held memory banks. Because the original Speccy ... can create your own memory banks and POKE/PEEK ... we have to manage memory differently in SpecBAS - with only ... />
    POKE bankID,address,value - in this case, the Font Bank ...
    Dunny Dunny May 2018 Sinclair Basic
  • CODE instruction in array$ PRINTSo I'm still plugging away at BASIC and have found a line of code (another!) that's really puzzling me. The line is as follows: PRINT A$(P+Q TO P…

    ... />
    The A$ values (in memory, decimal) are:
    478 8 ... index 481 plus the length in 478 (which is 8 ... 's a CODE instruction in there and I don't ... Does it return the ASCII value of 8 (i.e. ... how the values are stored in memory. Can someone please show ...
    LevelUp LevelUp October 2020 BASIC
  • I can't find the In Memorium section.Hello, From time to time I like to remember the people who have passed who have been involved in ZX spectrum stuff. was also expecting an entry fo…

    Hello,
    From time to time I like to remember the people who have passed who have been involved in ZX spectrum stuff.
    was also expecting an entry for Sir Clive to appear.
    However I cannot find it any more? Does it still exist?
    rholduser rholduser December 2021 Sinclair Miscellaneous
<1234567…34>

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