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<1…16171819202122…34>
  • DivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …

    ... to 16K and allow to map it permanently (with switch) ... rom and zx ram and mb02 ram use same memory ... can be emulated with extra ram pages with write protect. ... All extra ram pages can be set ... is also emulated with extra ram. All roms are switchable ...
    velesoft velesoft April 2011 Hardware
  • Amperage drastic reduction in a rubber 48KWell, I am now with the approach of a drastic reduction ZXSpectrum amperage. As a first step would change the Z80 processor for other (Z80C). Unfortu…

    ... just realized Sami?s 32K RAM SRAM FIX changing and ... , it detected 128K of RAM!! and all the graphics ... br /> On the 32k ram chip bend up pin 1 ... Removed IC25, IC26 and 8 RAM chips.

    If ... have a BASIC RAM calculating: LET N=PEEK 23732 + PEEK 23733*256: ...
    Mobutu Mobutu April 2011 Hardware
  • BASin Problems etc.Hi Folks, Paul has asked me to open this thread to document any outstanding issues that we find within BASin. No guarantees that Paul can/will fix …

    ... were using.

    [quote][*]PEEK 23556 always returns 255[/quote ... the contents of the 128K RAM disk
    [/quote]
    its ... /> [*]Repeated access to the 128K RAM causes BASin to crash[/LIST ...
    Arda Arda May 2011 Sinclair Basic
  • BASin Problems etc.Hi Folks, Paul has asked me to open this thread to document any outstanding issues that we find within BASin. No guarantees that Paul can/will fix …

    ... . And I managed to get Peek 23556 work , but only 23556 ... : statements from loading into spectrum ram but shown in the code ...
    Arda Arda May 2011 Sinclair Basic
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... know what was actually in RAM. PEEK might be enough. If you ...
    chev chev May 2011 Emulators
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... know what was actually in RAM. PEEK might be enough. If you ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... know what was actually in RAM. PEEK might be enough.[/QUOTE]

    PEEK returns the same values no ... ) to show some values from RAM, and inmediately after I do ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... , release the reset condition, and peek locations BBB9 and BBBA to ... ROM but with the initial RAM value changed so this ROM ... , so BBBA is 48058. We peek at them...

    [img ...
    mcleod_ideafix mcleod_ideafix June 2011 Emulators
  • Calculating free memory...Hi Folks, I am using the following method to calculate the amount of free memory available to BASIC: [CODE]PRINT 65536-USR 7962[/CODE] Is this the…

    ... free RAM like so:

    10 let ramtop = PEEK 23730+256*PEEK ... 23731
    20 let basic = PEEK 23635+256*PEEK 23636 ...
    Arjun Arjun June 2011 Sinclair Basic
  • Calculating free memory...Hi Folks, I am using the following method to calculate the amount of free memory available to BASIC: [CODE]PRINT 65536-USR 7962[/CODE] Is this the…

    ... didn't checked Spectrum memory map to see that there is ... after BASIC area. "Last" memory map system variable is STKEND
    PEEK 23730+256*PEEK 23731
    30 let basic = PEEK 23653+256*PEEK 23654 ...
    Encarnado Encarnado June 2011 Sinclair Basic
  • Calculating free memory...Hi Folks, I am using the following method to calculate the amount of free memory available to BASIC: [CODE]PRINT 65536-USR 7962[/CODE] Is this the…

    ... function for the unused FREE RAM code in the standard ROM ... TS2068 ROM uses up more RAM to begin with.[/QUOTE]
    map, but the function could be ...
    Encarnado Encarnado June 2011 Sinclair Basic
  • GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…

    ... non-trivial application in 48k RAM is also difficult. You probably ... would have a 32x24 master map with pointers to character cells ... windows would modify this master map. Redrawing would traverse changed character ...
    Alcoholics Anonymous Alcoholics Anonymous June 2011 Development
  • Renegade (the hit squad)Hi fellow spectrum peeps,nice to meet you all!,and what a great site you have here!. I have been given a spectrum +2 which didn't load tapes,until i…

    ... BASIC, maintaining any program in RAM. There is no switch back ... +3 BASIC. Note that ROM/RAM switching is not disabled when ... /> OUT 32765,17
    PRINT PEEK 49152
    [/code]
    - returns ...
    gasman gasman June 2011 Games
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... bytes of the Spectrum memory map, starting from address 16384. I ... into my emulated Speccy's RAM and run my application?[/QUOTE ...
    ccowley ccowley June 2011 Emulators
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... into my emulated Speccy's RAM and run my application? If ... so, which RAM address should I load it ... ink colour in the attribute map of speccy (offset 22528 ). Set ...
    Arjun Arjun June 2011 Emulators
  • File size in 128K RAM diskHi Folks, Is there a way to get the size of a file stored in the 128K RAM disk from within a BASIC program? Many thanks Paddy

    ... . Line 15 swaps in the RAM page which holds the RAMdisk ... ]
    10 LET sfnext=PEEK 23427+256*PEEK 23428:
    11 DIM ... $(n,b-a+1)=CHR$ PEEK b: NEXT b
    22 ... ,(b-a-7)/3)=PEEK b+256*PEEK (b+1): NEXT b ...
    Battle Bunny Battle Bunny September 2011 Sinclair Basic
  • File size in 128K RAM diskHi Folks, Is there a way to get the size of a file stored in the 128K RAM disk from within a BASIC program? Many thanks Paddy

    ... . Line 15 swaps in the RAM page which holds the RAMdisk ... ]
    10 LET sfnext=PEEK 23427+256*PEEK 23428:
    11 DIM ... $(n,b-a+1)=CHR$ PEEK b: NEXT b
    22 ... ,(b-a-7)/3)=PEEK b+256*PEEK (b+1): NEXT b ...
    Paddy Coleman Paddy Coleman September 2011 Sinclair Basic
  • File size in 128K RAM diskHi Folks, Is there a way to get the size of a file stored in the 128K RAM disk from within a BASIC program? Many thanks Paddy

    ... /> 20 PRINT AT 0,0;"RAM DISK TEST"
    30 SAVE ... !
    60 LET sfnext=PEEK 23427+256*PEEK 23428
    70 DIM ... $(n,b-a+1)=CHR$ PEEK b: NEXT b
    110 ... ,(b-a-7)/3)=PEEK b+256*PEEK (b+1): NEXT b ...
    Paddy Coleman Paddy Coleman September 2011 Sinclair Basic
  • File size in 128K RAM diskHi Folks, Is there a way to get the size of a file stored in the 128K RAM disk from within a BASIC program? Many thanks Paddy

    ... /> 110 PRINT AT 0,0;"RAM DISK TEST"
    120 SAVE ... 23408
    150 PRINT CHR$ PEEK a;
    160 NEXT a ... AT 3,0;"FILE TYPE = ";PEEK 23409
    180 PRINT AT ... 4,0;"FILE SIZE = ";PEEK 23410+256*PEEK 23411
    190 ERASE ...
    Paddy Coleman Paddy Coleman September 2011 Sinclair Basic
  • Dud 48K rubber key versionMy Rubber key speccy has been dud for quite some time, but I've just not bothered with it as I also have a Spectrum + and a +3. The problem is this…

    Just print peek 23733. If not 255 you have bad high RAM.
    If in socket then you are lucky, otherwise de/soldering.
    kpuchatek kpuchatek October 2011 Hardware
  • Dud 48K rubber key versionMy Rubber key speccy has been dud for quite some time, but I've just not bothered with it as I also have a Spectrum + and a +3. The problem is this…

    ... print peek 23733. If not 255 you have bad high RAM.
    Alien 8 Alien 8 October 2011 Hardware
  • Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…

    ... across both the 8 lower RAM chips and the 8 upper ... it, thereby doing a rudimentary ram test. I assembled it to ... me to believe that upper ram is definitely suspect. Unfortunately I ... address then I need to map that to the correct IC ...
    cmonkey cmonkey October 2011 Hardware
  • Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…

    ...
    ld a,(hl) ;and PEEK back
    cp b ;equal ... bode well for my upper ram! Does this mean that all ... 8 upper ram chips are caboosed? As I ... logic chips which control the ram which are bad?
    < ...
    cmonkey cmonkey October 2011 Hardware
  • Classics ported or cloned on good ol' SpeccyHi, Spectrumists! I'm a fan of classic arcade games and I would like to know from you what do you think about ports or clones of such games on the S…

    ... handler scans the display character map for changes to draw, ... rom with divide 16kB ram memory and place from ... custom rom image to DIVIDE ram:
    DI
    ... from zx ram 49152-65535 to divide ram pages 3+ ... protected and 8192-16383 writeable ram. CPU can't jump ...
    velesoft velesoft November 2011 Games
  • 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
  • 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=Dunny;579193]I shall pop an archive of demo programs up for you. Here you go:

    [url]https://sites.google.com/site/pauldunn/demos.zip[/url]

    Unpack that into your Specbas folder.[/QUOTE]

    Thanks mate. Although now ...
    ewgf ewgf November 2011 Sinclair Miscellaneous
  • Dud 48K rubber key versionMy Rubber key speccy has been dud for quite some time, but I've just not bothered with it as I also have a Spectrum + and a +3. The problem is this…

    ... /> Anyway when I typed in PEEK 23733, it returned an error ... got folded), but the bad RAM problem persists. I'll have ...
    Alien 8 Alien 8 November 2011 Hardware
  • AGD 2.6 WoesThis was originally in the New Game Ideas section but thought this would be the best place to post this: I'm no programmer, hence i'm using the exce…

    ... Kempston support I'd probably map the first 5 keys on ... no version to support 128K RAM in the game engine as ... of the Spectrum's memory map as that would be slightly ...
    jonathan jonathan November 2011 Development
  • Duke savage - arctic ninja!This is the animated character and enemies from a game I thought of called "DUKE SAVAGE - ARCTIC NINJA!". The game was inspired by one of those name …

    ... also starting to plan the map, and the background graphics. I ... , so I can have a peek at the coding)?
    The Lone Magpie The Lone Magpie November 2011 New game ideas
  • Duke savage - arctic ninja!This is the animated character and enemies from a game I thought of called "DUKE SAVAGE - ARCTIC NINJA!". The game was inspired by one of those name …

    ... also starting to plan the map, and the background graphics. I ... , so I can have a peek at the coding)?[/QUOTE]
    dm_boozefreek dm_boozefreek November 2011 New game ideas
<1…16171819202122…34>

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