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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
  • Still stuck with BREAKOkay now I'm getting desperate! Can anyone rustle up a small 128kBASIC routine/working example to prevent the 128kBASIC program from stopping when a …

    ... or 128 BASIC:

    POKE (PEEK 23613+256*PEEK 23614), 0: POKE (PEEK 23613+256*PEEK ...
    Marko Marko July 2005 Sinclair Basic
  • POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects? As a start, try anything from RANDOMIZE USR 1216 to RANDOM…

    ... also had a ZX81 POKE (or, more probably, PEEK) once which would ... display the total amount of memory available ...
    The Mighty Dopethrone The Mighty Dopethrone October 2003 Sinclair Miscellaneous
  • Speed of variables vs. POKE/PEEKGreetings, I'm sure I could probably find this out after careful study of the 48K ROM disassembly, but I was wondering whether someone already knew …

    ... come up with the actual memory address where the variable's ... be faster to PEEK/POKE values at an absolute memory address instead of ...
    GOC GOC September 2005 Sinclair Basic
  • JHCon 2014Hello, not sure if this is the right category but JHCon 2014 will take place[B] from 28. to 30.11.[/B] at usual place - gymnasium in Jindrichuv Hrad…

    ... it for a firm Spectrum 128/+2
    --- add a proper ... normal 48 BASIC and 48K memory
    --- your demo part can ... machine code (USR to RAM, POKE, PEEK) is forbidden! USRs and POKEs ... are allowed. UDG is allowed. POKE to modify your own BASIC ...
    Factor6 Factor6 October 2014 Announcements
  • 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…

    ... SpecBAS allows you to use 128 graphics (or UDGs). Each ... each of the first 128 characters of the set ... create your own memory banks and POKE/PEEK them should you ... UDG for "a" is 128 characters on from there, so ... an example, BIN 10000000 = 128. Bit 7 in this case ...
    Dunny Dunny May 2018 Sinclair Basic
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    ... can use this poke:

    POKE PEEK 23633 + 256 * PEEK 23634, 111
    memory remember that every number ... when you run out of memory. Alternatively, POKE 23608,255 gives a ... of memory' error you would end a program with POKE 23610, ...
    na_th_an na_th_an April 2005 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…

    ... RAM, and then use PEEK & POKE to move the loaded data ... not other pages on a 128 ) memory of speccy into one string ... .g. of this memory.

    The POKE command in BS-DOS ... that you can POKE a whole string into memory from the start ...
    ingo ingo October 2007 Development
  • 'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…

    ... avoid losing 16K of available memory. Not that hard to do ... designed for expansion. The Spectrum 128 is a hack. It's ... memory blindingly fast. This now allowed me to eliminate the slow POKE/PEEK ...
    Digital Prawn Digital Prawn August 2008 Sinclair Miscellaneous
  • 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
  • 48k spectrum restarts by itselfFirst of all hello from a newb and thank you for your help. This site has already offered me a lot of insight. I have a 48k spectrum that will boot …

    ... to do teh POKE - PEEK command to check the memory and it all ...
    hedge hedge January 2010 Hardware
  • Spectrum 48K - upper memory MIAI have recently acquired a ZX Spectrum which, according to the sticker on the bottom, should be a 48K model. It's an Issue 3 board, with upper memory…

    ... Issue 3 board, with upper memory chips (8xTI4532) and supporting logic ... not see the extended memory. PRINT PEEK 23732 + PEEK 23733 * 256 returns 32767 ... . PRINT PEEK 23733 returns 127.

    ...
    unholy unholy February 2012 Hardware
  • More random questionsWay back in the mists of time I remember reading a couple of articles in an ancient copy of Sinclair User, ZX Computing or the like (can't remember w…

    ... would be:

    POKE (PEEK 23635+256*PEEK 23636) + 1,0
    memory saving tricks and compare both ... one single line also saves memory "i think". I remember learning ... /> i believe takes up more memory than:

    10 ...
    Amigo Amigo July 2003 Games
  • Spectrum Issue two problemI managed to bring back to life a issue two spectrum (at least the power supply cirquit). The screen is now crystal clear (after replacing all the el…

    ... the RAM. Try POKE/PEEK to various values in higher memory (ie, > ... RAM will make the ROM memory test (black screen with red ...
    Dunny Dunny December 2006 Hardware
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... work. I'm using PEEK and POKE. I PEEK the attribute, subtract it ... from 127, and POKE it ... there directly from the memory location (PEEK and POKE again). This is what ... I point it to the memory area containing the graphics? ...
    48K 48K February 2007 Development
  • Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …

    ... 16384 TO 65535
    20 POKE a,255
    30 NEXT ... 65535
    50 LET c=PEEK b
    60 IF c255 ... unless I'm trying to POKE to somewhere I shouldn't ... POKE/PEEK that tells you if your computer is accessing all the memory ... that's the top of memory, it's been 20 years ...
    hypostomus hypostomus January 2009 Games
  • !!! Trdos Emulation On Zx !!![B]This is software emulator of TRDOS(betadisk). Yet is writed only for interface MB02+, but will ported to more other IDE interfaces with external r…

    ... using %ffff, val function, extended poke, peek commands, basic editing is as ... /> My old MB02 has additionally "memory LED map". It is matrix ... LED is representing 1k of memory. LED is ON when ... processor is accessing this memory address. What is it good ...
    omega omega May 2009 Development
  • 48k spectrum restarts by itselfFirst of all hello from a newb and thank you for your help. This site has already offered me a lot of insight. I have a 48k spectrum that will boot …

    ... to do teh POKE - PEEK command to check the memory and it all ... . Write

    PRINT PEEK 23732 + PEEK 23733 * 256

    The ...
    Jose_Leandro Jose_Leandro 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…

    ... 48k mode from which the 128 memory paging is still available)
    25 POKE 23739,111
    30 LOAD ... into page 7
    32 POKE 23739,244
    35 PAUSE ... into top 16k
    45 POKE 23739,111
    50 ... into page 5
    55 POKE 23739,244
    60 ...
    brownb2 brownb2 March 2010 Development
  • Location of variableHi everyone When basic makes an array how to you find out the location in the ram of where the data is stored. :) Also, does it store the values in…

    ... o$="w": GO SUB 3000: POKE i,6*32+CODE "i ... be referenced directly in memory with PEEK & POKE relatively easily (although I ... floating point numbers directly in memory from BASIC - ie. without using ...
    Battle Bunny Battle Bunny September 2010 Sinclair Basic
  • New To Group....Hi All, A quick introduction as this is my first post. I am a Scarborough, UK based chap who is quite heavily into retro computing, more specificall…

    ...

    I tried the poke/peek trick (now, why didn't ... pokes... So that rules out memory issues, which in turn, from ...
    Jason9 Jason9 March 2011 Hardware
  • New SpecBAS available - v0.710Been a while, but I've just uploaded the latest build of SpecBAS. This one now supports tilemaps (with rotation and scaling) and added OVER mode (XO…

    ... data, and access it via POKE/PEEK? What I mean is, ... memory pool can then be examined or altered by POKE and PEEK, ... i.e.

    Poke name_MP_address, value ... />
    PEEK name_MP_address

    i.e. Poke dd_MP_32768, 0.
    ewgf ewgf November 2011 Sinclair Miscellaneous
  • New SpecBAS available - v0.710Been a while, but I've just uploaded the latest build of SpecBAS. This one now supports tilemaps (with rotation and scaling) and added OVER mode (XO…

    [QUOTE=ewgf;579158]Thanks for this, Dunny, but is there an archive of programs I can try for it?[/quote]

    I shall pop an archive of demo programs up for you. Here you go:

    [url]https://sites.google.com/site/pauldunn/demos.zip[/url]< ...
    Dunny Dunny November 2011 Sinclair Miscellaneous
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... contended memory):

    POKE 64954,INT (addr/256): POKE 64953,addr-256*PEEK ...
    Einar Saukas Einar Saukas March 2012 Brand new software
  • Beginner questionThis might sound and be daft.... I've just been reading J Cauldwell's "how to write a Spectrum game" but was thinking of writing something in C as I…

    ... 't need inline assembler to POKE/PEEK memory (if you need this for ...
    Shiru Shiru May 2012 Development
  • Flashing coloured blocks - diagnosisHiya, hope this is the right place for this... Was given an Issue 2 48K by a someone yesterday that hasn't been powered on in 20 years, which works …

    ... using:

    PRINT PEEK 23732 + 256 * PEEK 23733

    is ... problem, but when I POKE/PEEK the memory location on from that with ...
    junosix junosix April 2013 Hardware
  • Flashing coloured blocks - diagnosisHiya, hope this is the right place for this... Was given an Issue 2 48K by a someone yesterday that hasn't been powered on in 20 years, which works …

    ... bit (as happens with the POKE/PEEK test to a single location ... found that the rate of memory access can trigger errors. For ...
    Zorn Zorn April 2013 Hardware
  • ZX Spectrum 48K working as 16K from factoryGood morning I Have a Zx Spectrum 48k working as 16K , it came like this from factory. What can i do to solve this , and put it to work as 48K? Wha…

    ... . You should then run the memory test program I posted. It ... revealed by the very simple POKE & PEEK test.

    If ...
    Zorn Zorn July 2013 Hardware
<1234567…34>

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HitBox

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128 9.4K 14.8K
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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 …
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