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<1234567…34>
  • 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…

    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 recommended approach?

    Many thanks

    Paddy
    Paddy Coleman Paddy Coleman June 2011 Sinclair Basic
  • Getting Unit CHS detail in +3e BASICHello there my fellow WoS'ers I would like to know if there are system VARS or PEEK's that I could use to get the CHS info within BASIC at the mome…

    ... get the CHS info within BASIC

    at the moment ... I have written a basic program that leaches this data ... , Heads, Sectors
    Available Free Memory
    Partitions Free
    Format Type (i ...
    Zetr0 Zetr0 January 2013 Sinclair Basic
  • Basic listings memory occupationI remember readong someplace that due to basic's representation of number, in a program, in order to save space, it was better to represent integers …

    ... readong someplace that due to basic's representation of number, in ...
    Alessandro Tommasi Alessandro Tommasi August 2002 Sinclair Miscellaneous
  • Interesting speed increase...Hi Folks, You may already know the following but I found it "interesting". I have been developing a model railway timetable program in BASin for th…

    ... data population left. The main BASIC program is 17.1K in ... execution speed despite the extra free memory. However, if I renumber the ...
    Paddy Coleman Paddy Coleman January 2012 Sinclair Basic
  • What if there was no memory or space limitation?What if there was no memory or space limitation? We've had topics about the limitations of the Speccy's hardware, topics where we discussed how good …

    ... such a low amount of memory, how some programmers showed skill ... had an extreme amount of memory, paginated, at the disposal of ... mean that if the available free memory was not a problem, games ... have a virtual amount of "memory" at our disposal. How better ...
    zxbruno zxbruno May 2012 Sinclair Miscellaneous
  • Microdrive woesHi there! Just managed to pick up a 2nd hand Microdrive and interface one... Came with an introductory program which doesn't seem to load. Since its…

    ... loading a large basic program when there is insufficient free memory hung the ...
    Geoff Geoff March 2002 Sinclair Miscellaneous
  • TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…

    ... built in bank selection memory management unit with the ... the included hardware. This memory management hardware made cartridges ... to move BASIC up above the two screen memory locations. ... general BASIC commands like FREE to get the amount of free memory, and ...
    Sparky Sparky December 2002 Sinclair Miscellaneous
  • T.I.M. - A New Interlace - Demo for DOWNLOADHere's something that's been in the works for quite a while ( mostly in my head ) and recently I've aquired assistance to help it come to fruition. …

    ... wrote:
    if u have free memory dont use LDI as it ... be kept in memory makes it impractical for a basic 48K machine ... choices, some colours are flicker free on the real machine (in ... can be done on a basic 48K.


    [ This ...
    Alcoholics Anonymous Alcoholics Anonymous April 2004 Development
  • Saving BASIC code as CODE... can't start programHi guys! I'm trying to create an adventure game for the Speccy in BASIC, called The Legend Of The Red Dragon. I'm using the excellent BASin to code…

    ... out of memory with more than 18 or 19Kb of BASIC code ... tells you the amount of free memory. Just substract it from 40 ...
    na_th_an na_th_an May 2005 Sinclair Basic
  • Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …

    [quote]
    On 2005-08-27 00:00, Crisis wrote:
    and another one:
    [url="http://www.worldofspectrum.org/forums/viewtopic.php?topic=4348&forum=2"]http://www.worldofspectrum.org/forums/viewtopic.php?topic=4348&forum=2[/url]

    ...
    Dr BEEP Dr BEEP August 2005 Sinclair Basic
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... ), BALLOC.LIB (block memory allocator), SPECTRUM (actually ...
    BAQTBL(2) // two memory queues

    /*****************END ... a list of free memory blocks of the ...
    There are five basic sprite types: MASK, OR ...
    Alcoholics Anonymous Alcoholics Anonymous April 2006 Development
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... these functions to request and free memory implicitly.

    In ... , just as you would in Basic.

    [code]
    // ... the IY register. Unfortunately, Basic assumes it has a monopoly ... got to do with the Basic system? Nothing usually, but ...
    Alcoholics Anonymous Alcoholics Anonymous April 2006 Development
  • Development SurveyI was just wondering how many people are actually developing games or programs for the Speccy. I'm not talking about people who "plan" to write somet…

    ... the 48K target memory limit for IF (actual free memory available is approx ... language do you use? (Asm, Basic, C etc)
    GAC (although ...
    choccy48K choccy48K May 2006 Development
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... like C, Pascal, Fortran and Basic were king. A language is ... you to provide an implicit memory allocator in u_malloc() and ... that it can allocate and free memory as needed.

    ... will be returned indicating insufficient memory and the list will not ...
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
  • The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…

    ... , and a better version of BASIC, but as it had no ... the registers.

    The memory map is WAY better than ... the C64 from a usable memory standpoint. It's design was ... one of the largest free memory spaces for BASIC of any 8 bit ...
    JamesD JamesD September 2006 Sinclair Miscellaneous
  • 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…

    ... calculator stack and then checks free memory to see if there is ... .
    I often type in BASIC programs intended for Atari and ...
    Geoff Geoff September 2006 Development
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... , the screen says "3**** bytes free", while the machine is said ... 'm referring to the free memory for use with BASIC.

    And ... **** available for BASIC, I wondered about how much memory it has if ... include the memory used to boot it up for BASIC, if I ...
    Pilsener Pilsener March 2007 Hardware
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... 'm referring to the free memory for use with BASIC.

    ... available for BASIC, I wondered about how much memory it has ...
    Speccy nowhere writes free RAM for Basic when starts. Even no ... has so much less free RAM for Basic not because something ...
    piters piters March 2007 Hardware
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... ), is not why it affects BASIC.
    [/QUOTE]
    There is ... an error occurs so that free memory is reduced by approximately 50 ...
    Geoff Geoff March 2007 Hardware
  • Interface 1 with 3.5" floppyHas this been done or can it be done? Using an interface 1 and a powered 3.5" floppy disk drive (with a modified cable) instead of a microdrive?

    ... , including a small amount of free memory you can use for your ... when you have access to BASIC, so it's no problem ... use the memory for your own programs), the exit-to-BASIC function ...
    ewgf ewgf May 2007 Sinclair Miscellaneous
  • Using a multiface to exit to BasicBack in the days I was always fascinated with the idea of getting access to BASIC listings inside a program or game. I was able to work a way around …

    ... will produce a 'out of memory' error. I know that ... The address yields the BASIC variables memory start address. So it ... is loaded ALONG WITH the BASIC, right after it. If ... CODE above your own BASIC and then PEEK it ... you have plenty of free RAM to load your block ...
    Marcelo Marcelo August 2007 Sinclair Basic
  • FAST and SLOW .TAP loading in RESIDOSWhy is in RESIDOS this TAP file loaded always too slow ? (with lines in border area). Other TAP files on my drive is fast loaded, but loading this fi…

    ... you're in BASIC and you don't have free memory to execute ... the LDIR routine right into memory, you find this method the ...
    Factor6 Factor6 May 2008 Development
  • I just learnt that Spectrum has 1kB of unused ROMWell, man learns through all his life. I have just discovered that Spectrum has over 1 kilobyte of unused ROM memory, from address 14446 to 15615. Al…

    FREE MEMORY IN ZX ROM:

    ... 128k rom (rom 1 - 48 basic):
    #000B-#000F
    #0014 ...
    velesoft velesoft October 2008 Development
  • Cro S2008Hi everybody!!! I hope this is right thread? :-) I want to share with you my new project. I call it ?S2008?? The idea was to build Spectrum48K clo…

    ... /change TAP files only from basic, not exist comfortable NMI menu ... can work with IDE at BASIC level only.

    [QUOTE ... for write commands in 128 basic.
    [img]http://velesoft.speccy ... +NMI MENU+TRDOS EMUL + next free memory pages. Is this comfort on ...
    velesoft velesoft January 2009 Hardware
  • Do you need to use a Pc for Development?Hi all im new here, I used to have a spectrum as a kid and was thinking of getting a 48k again to mess about with. I was thinking it might be fun t…

    ... like you did with your BASIC programs.

    [QUOTE=Markybhoy ... models, and leave you more free memory to work with.
    Metalbrain Metalbrain March 2010 Development
  • Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…

    ... sure about dynamic memory allocation. ZX BASIC does have something ... . In a small memory machine, memory management is always near ... The z88dk libraries requiring dynamic memory call a user supplied ... these functions to allocate and free memory as it sees fit. ...
    Alcoholics Anonymous Alcoholics Anonymous June 2010 Development
  • Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…

    ... would like to see safe basic loader. something like:
    < ... sure how safe is memory paging from basic.
    has anyone proven ... two versions of Buzzsaw: one free with green blood, and one ... games by checking if the free memory is not ocupied by decompressor ...
    LCD LCD August 2010 Development
<1234567…34>

Latest Posts

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