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<1234567…34>
  • Lowest safe ramtop for various disk systems ?Can someone give info about lowest safe ramtop for various disk systems ?

    Can someone give info about lowest safe ramtop for various disk systems ?
    Fikee Fikee October 2010 Development
  • Whats up wi mi speccy ? M RAMTOP no good 0:3I bought a speccy on ebay tried to load Mission Impossible but about 30 secs into loading it stopped and i got the error message ... M RAMTOP no good…

    I bought a speccy on ebay tried to load Mission Impossible but about 30 secs into loading it stopped and i got the error message ... M RAMTOP no good 0:3 ... I take it it means it has defective ram ?
    swordheart swordheart March 2007 Sinclair Miscellaneous
  • tiny routine to shift RAMTOP & stackCompressing some data areas above RAMTOP and wanting to make the released space available for BASIC arrays, I needed to move RAMTOP without using CLE…

    Compressing some data areas above RAMTOP and wanting to make ... , I needed to move RAMTOP without using CLEAR so that ... variables were preserved. Just poking RAMTOP isn't enough, as the ... rest.
    [code]
    ;Change RAMTOP to "val" without clearing variables ...
    Battle Bunny Battle Bunny November 2011 Sinclair Basic
  • Memory Available for 16k and 48kAm I right in thinking that if I am writing a 16k Game, I have 8k available for the machine code prog 6000h to 8000h, and for a 48k game I have 40K a…

    ... way of Basic, set RAMTOP to the lowest address needed by your ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 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 …

    ... /> LD A,$80 ; Set 16K RAMTOP value

    JR SaveRamtopValue ...
    XOR A ; Set 48K RAMTOP value

    SaveRamtopValue
    lowest bits
    LD B,A ...
    Digital Prawn Digital Prawn January 2009 Games
  • multiple songs with savage enginesorry friends, another thread with my stupid questions. maybe wos should introduce a noob section for people like me? :oops: anyway, how does using …

    ... ? This operator moves so called RAMTOP variable, which tells Basic interpreter ... be one byte lower than lowest address used to load data ...
    Shiru Shiru May 2011 Development
  • Line DemoI was looking in the source code of another game (that Akalabeth game), with lots of line drawings. The difference was that they don't use the PL…

    ... to store this info on RAMTOP? With all the RAM switching ... does it mean that my RAMTOP can only be under 49152 ... of storing M/C above Ramtop, however I am exploring things ... working on, is at the lowest possible memory location.
    The_Bert The_Bert September 2016 Sinclair Basic
  • WARNING!!! American Pirate Strike Again!This is a message about piracy of the lowest kind, the American Corporation are robbing artist of their works and not paying for it. I am not alone! …

    This is a message about piracy of the lowest kind, the American Corporation are robbing artist of their works and not paying for it. I am not alone!
    They strike again!!
    garie sim garie sim June 2001 Sinclair Miscellaneous
  • BASIC-code challengeFor the BASIC-coders among us. There is a number that has following aspects. divided by 16 remains 15 divided by 15 remains 14 divided by 14 remain…

    ... 0

    Find the lowest number that fit the description ...
    Dr BEEP Dr BEEP July 2002 Sinclair Miscellaneous
  • Any info on 'Fred Loder'?Does anyone have any info on the Spectrum game 'Fred Loder'? I'm pretty sure the title of the game is correct, but I can't find any reference to it a…

    ... guy started out on the lowest level of a mine, and ...
    Dandino Dandino March 2003 MIA/STP/SDP
  • Any info on 'Fred Loder'?Does anyone have any info on the Spectrum game 'Fred Loder'? I'm pretty sure the title of the game is correct, but I can't find any reference to it a…

    ... guy started out on the lowest level of a mine, and ...
    Dandino Dandino April 2003 Games
  • virtual ZX party - send Your works!!!! :)Hi there! Below You can find rules of virtual ZX party - ANTIQUE TOY 2004. Read it and send Your works to e'mail addresses contained in the rules…

    ... every work a mark. The lowest mark for a
    work ...
    Yerz Yerz March 2004 Sinclair Miscellaneous
  • KEEP THE SPECCY ALIVE ;)I just would like to remind You, that there is virtual competition for zx-music and zx-graphic. Don't be lazy, don't wait anymore, but send Your wo…

    ... every work a mark. The lowest mark for a
    work ...
    Yerz Yerz April 2004 Sinclair Miscellaneous
  • MemoryI am writing a game for the Spectrum and need to store a lot of map data. What is the lowest address I can start to store the data at ?

    I am writing a game for the Spectrum and need to store a lot of map data. What is the lowest address I can start to store the data at ?
    Mr Millside Mr Millside December 2004 Development
  • a game as a taxi driverhi, i've just found this site and have downloaded an emulator, but when i had my spectrum, i had a game, usually for two players. each of you had a t…

    ... bid accordingly. whoever got the lowest bid got the job. Does ...
    shif shif March 2005 Games
  • Name of dungeon gameHi all, Hope someone can help save my sanity! I have fond memories of a very old spectrum game I played back in my youth. It was a mono 2d grid ba…

    ... could fall down. On the lowest level in some of the ...
    doc doc April 2005 Games
  • OOH$400 for a PK energy detector $1,200 for a super PK energy detector with those i can detect how much energy master phillip kendall has, and get him …

    $400 for a PK energy detector
    $1,200 for a super PK energy detector

    with those i can detect how much energy master phillip kendall has, and get him at his lowest :)
    mel the bell mel the bell June 2005 Chit chat
  • ZX-81 Ram Pack problemHi! I know this is a ZX Spectrum forum, but I am hoping someone here might be able to help me out... I have posted this to c.s.s. but noone was able…

    ... where I moved the RAMTOP a bit lower with ... small memory test program above RAMTOP like this :

    ramtop to 77*256 (19456 ... behaviour. Especially with the RAMTOP. The only difference with ... .5k of memory free (RAMTOP lower than ROM + 3 ...
    Tom-Cat Tom-Cat September 2005 Sinclair Miscellaneous
  • Can Anyone Suggest a Good Emulator for a Slow Laptop?I have an old Pentium 2 Thinkpad. I have already tried Spin on it and although it does run. It is slow. The only way I could get decent speed out …

    ... run full screen at the lowest resolution. Can anyone suggest an ...
    Klepto Klepto March 2006 Emulators
  • What should be the base address to set for my codeHi, I am new here and I have a simple question but one which I have not found an answer to. When I am developming my programs what should I set th…

    ... I start it at the lowest fixed location that I can ...
    Scrapheap Scrapheap April 2006 Development
  • Which would be fasterSay you want to use a variable value of 0 to 255 in a BASIC program, which way would be fastest? Say for arguments sake you wanted to use two variabl…

    ... in non-contended memory above RAMTOP, i.e.

    POKE ...
    ewgf ewgf September 2006 Development
  • HELP BTTF on Speccy 48khello, fellow spectrum owners! I have won a Back To the future game on cassette of eBay that is for my 48k. I run it, by typing LOAD "", and it sta…

    ... message:
    [CODE]
    M RAMTOP no good, 20:1[/CODE ...
    compact-mac compact-mac November 2006 Games
  • Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …

    ... to 'OPEN TO 3' and RAMTOP to
    32767. Memory for ...
    DonkeyPong DonkeyPong January 2007 Development
  • "Lost" 48K expansionToday I dug up my Speccy after more than 10yrs of inactivity. I bought it as a 16K in 1983, than I had expanded to 48K and never had problem. Until t…

    ... mind after I received many "RAMTOP pointer no good" trying to ...
    Confessor Confessor April 2007 Hardware
  • Lowest rated game you intentially bought?What I mean by this is what is the game that you knew full well wasn't rated highly by your fave mag yet, for some unknown reason you bought it anywa…

    What I mean by this is what is the game that you knew full well wasn't rated highly by your fave mag yet, for some unknown reason you bought it anyway?

    Mine was Fruit Machine Simulator:

    http://www.worldofspectrum.org/infoseek.cgi? ...
    [FOAD]Iron [FOAD]Iron June 2007 Games
  • GUIDE: How to convert TZXs to LOSSLESS low bitrate MP3s (56, 64 and 80 kbps)I posted this to comp.sys.sinclair last year, but it didn't get a single reply. Which annoyed me a bit. Since some people here seem to be intereste…

    ... lossless MP3s files using the lowest possible bitrate (either 56, 64 ...
    Rephlex Rephlex July 2007 Hardware
  • Question on Z80 R/W cycles.Snipped from the complete spectrum ROM disassembly: [CODE] Now the memory is checked. 11DA RAM-CHECK LD H,D Transfer the value…

    ... ,E (START = +FFFF, NEW =
    RAMTOP).
    11DC RAM-FILL LD ...
    wilsonsamm wilsonsamm August 2007 Sinclair Miscellaneous
<1234567…34>

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Related Threads

  • Lowest safe ramtop for various disk systems ?Can someone give info about lowest safe ramtop for various disk systems ?
  • Whats up wi mi speccy ? M RAMTOP no good 0:3I bought a speccy on ebay tried to load Mission Impossible but about 30 secs into loading it stopped and i got the error message ... M RAMTOP no good…
  • Lowest rated game you intentially bought?What I mean by this is what is the game that you knew full well wasn't rated highly by your fave mag yet, for some unknown reason you bought it anywa…
  • tiny routine to shift RAMTOP & stackCompressing some data areas above RAMTOP and wanting to make the released space available for BASIC arrays, I needed to move RAMTOP without using CLE…
  • Issue 3B only sees 16k (and RAMTOP NO GOOD on loading)A ZX+ with issue 3B board that i got recently, does not see anything more than 32768 (sometimes 37267..) on "PRINT PEEK 23732 + PEEK 23733 * 256 (Ent…

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