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  • Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…

    ... of these routines scans the VARS area, and does some unknown ... the values of some undetermined BASIC variables. I cannot coax the ...
    Digital Prawn Digital Prawn October 2007 Games
  • Minigame Compo 2007Hi there, also this year, there'll be a minigame competition, open to all 8-bit computers and consoles. It consists on writing games whose size (…

    ... use a nonstandard value of vars then the information in the ... change the content of the BASIC command line.

    EDIT ...
    Paolo Ferraris Paolo Ferraris January 2008 Development
  • Minigame Compo 2007Hi there, also this year, there'll be a minigame competition, open to all 8-bit computers and consoles. It consists on writing games whose size (…

    ...
    The issue about VARS is more serious, though. The ... . I think that the VARS thing is similar.
    ... not to use the VARS thing at all. I ... size of file, size of BASIC program (excluding variables), autorun ... start "playing" with VARS then the judges may not ...
    Paolo Ferraris Paolo Ferraris January 2008 Development
  • Probing the variables in 128K modeHello again! Briefly, I'm writing an m/c routine to read some BASIC variables. So, before I start, I try to get an idea for the structure of how var…

    ... the current BASIC program in memory. I suspect perhaps the VARS area ... bitten by was the 128K BASIC editor environment "paging" my code ...
    Digital Prawn Digital Prawn March 2008 Development
  • IF2 Rom snapshot creationHi, is it possible convert a Speccy 16k snapshot to a Interface 2 Rom file? I've the original Ultimate Pssst, Cookie, Trans-am and Jetpac tapes and …

    ... use some of the system vars
    (your example with JetPac ... over your parsing of the BASIC loader!
    BloodBaz BloodBaz April 2008 Emulators
  • BBC microI was often made aware by people at the time that the beeb was the "best computer in the world." Even my next-door neighbour ( who was a bit of a co…

    ... /> I remember once running a basic program somthing like the following ... X

    I subsituted vars A and B for all ...
    Scottie_uk Scottie_uk May 2008 Chit chat
  • ZX81 tape formatIs there a description of it somewhere? The TZX format doesn't give it but can it be worked out from what it says about block 19? There is a good d…

    ... system area, the basic program, the video memory, and VARS area.
    VARS area), not followed by any ...
    zxbruno zxbruno January 2009 Hardware
  • BIN shorter than NOT PI?Some time ago I checked many loaders and want to ask why coders are using BIN and not NOT PI? NOT PI is only 2 Bytes, BIN would be better if it would…

    Yes. Spectrum BASIC doesn't attempt to convert ( ... reading the value of the VARS system variable, which points to ... /> In terms of optimised Spectrum BASIC, [B]BIN[/B] is a ...
    ajmoss ajmoss June 2009 Sinclair Basic
  • super draughtscan anyone tell me how this auto-runs? its a code loader game that starts at 23755 - if system vars are overwritten it's obvious how it starts - but …

    ... starts at 23755 - if system vars are overwritten it's obvious ... is the start of the BASIC program area, I'd guess ...
    Matt_B Matt_B November 2009 Development
  • Dim commandI try o find a BASIC COMPILER for ZX SPECTRUM 128 that use DIM command with two or more letter as 10 DIM AB(10) instead of 10 DIM A(10) Any iforma…

    ... native compilers such as Hisoft Basic had to incorporate a ... optimal machine code from the basic source. This goes well ... away the interpretter phase of basic program execution. The cross- ... will do what Sinclair Basic does -- auto promote vars to float as ...
    Alcoholics Anonymous Alcoholics Anonymous December 2009 Sinclair Basic
  • Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …

    ... routine is running then sys vars at 23388 (7ffd) and 23399 ... if you are in +3 basic mode. If in USR0 mode ...
    nuggetreggae nuggetreggae April 2010 Hardware
  • +3 how to detect if a file exist ?Need help. I am making a generic menu to my compilations over the spectrum +3. Exist some way programatically to detect if some file exists on the d…

    ... search for variables in the VARS area and select an entry ... string arrays defined outside of BASIC has been covered in another ...
    Battle Bunny Battle Bunny June 2010 Sinclair Basic
  • Do a load "file" with ASMFollowing the idea to build a menu with asm, now i need to know how to do a load "file". I can use the Rom routine but i am not sure if the rom rout…

    ... /> Byte 0 = Type (0=Program (BASIC); 1=Numeric Array; 2=String ... (Code); Run Line No. (Program (BASIC)) (16 bits)
    Byte 15 ... (remember, Program saves Program and Vars)

    To save a ...
    BloodBaz BloodBaz June 2010 Sinclair Basic
  • 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:

    vars and i think it will ... safe is memory paging from basic.
    has anyone proven solution ...
    Fikee Fikee August 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:

    vars and i think it will ... safe is memory paging from basic.
    has anyone proven solution ...
    LCD LCD August 2010 Development
  • Adventure Gamebook Solver"It would take me ages to solve that adventure gamebook without AGES" - is what someone might say if they didn't have the [url=http://www.users.globa…

    ... the end of BASIC and the beginning of VARS, so that it ... separate posting in the Sinclair BASIC section). Also corrected the status ...
    Battle Bunny Battle Bunny August 2010 Announcements
  • 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:

    vars and i think it will ... safe is memory paging from basic.
    has anyone proven solution ... 24570 and then returning to Basic exept the last block which ...
    Speccyman Speccyman August 2010 Development
  • SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…

    -what i really miss in basic is support for structured programming ... paramaters to procedures, labels, local vars. while Lua's (probably the ... just something which speed up basic by 3-5 times.
    Fikee Fikee August 2010 Sinclair Miscellaneous
  • 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…

    ... 122-124 of the 48k BASIC Programming manual. Here's an ... a routine which searches the VARS area for a named string ... them directly from memory in BASIC is a bit tricky.
    Battle Bunny Battle Bunny September 2010 Sinclair Basic
  • 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…

    ... BASIC and naturally is making use of BASIC variables whist parsing the VARS ... area of BASIC. As BASIC variables are created (and ... and how the VARS area is manipulated by the BASIC interpreter.
    BloodBaz BloodBaz September 2010 Sinclair Basic
  • 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…

    ... REM GET VAR ADDRESS FROM VARS
    9050 REM LET v0 ... AT 0,0; INK whi;"BASIC VARIABLES"
    9080 PRINT AT ...
    Paddy Coleman Paddy Coleman September 2010 Sinclair Basic
  • Loading BASIC programs stored as "bytes:"Hi all, I have a question regarding loading BASIC programs, that I managed to save as machine code (I suppose) when I was a child, as a result of e…

    ... standard starting address for the BASIC program is 23755, although there ... 't be enough for the Basic interpreter to 'see' the program ... , you'll need to set VARS to the address just after ... it had finished loading, the Basic interpreter was in just the ...
    gasman gasman October 2010 Development
  • Loading BASIC programs stored as "bytes:"Hi all, I have a question regarding loading BASIC programs, that I managed to save as machine code (I suppose) when I was a child, as a result of e…

    ... so even if the BASIC chunk is restored into ... or return "Nonsense in BASIC" as the environment won ... the BASIC chunk which was originally between PROG and VARS. ... 128 (the "end of VARS" marker, setting this ... which I'll call PROG, VARS and ELINE respectively.
    ...
    Battle Bunny Battle Bunny October 2010 Development
  • Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…

    ... is this hit and miss? BASIC follows a definite path through ... is affected by where in VARS your variable is stored, and ... . You can easily see how BASIC does its job by reading ...
    Dunny Dunny October 2010 Sinclair Basic
  • Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve

    ... engineering:

    [CODE]; Basic program/loader
    10 CLEAR ...
    ld (l_5c4b), hl ; VARS, store it.
    ld ix ... l_5b56: nop ; Total length (prog+vars) LSB [11]
    nop ; ... Total length (prog+vars) MSB [12]
    nop ; ...
    stefrobb stefrobb November 2010 Sinclair Basic
  • Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve

    ... line buffer (follows BASIC program area)
    VARS equ $5c4b ; ... Start address of the BASIC variables ... /> ; immediately after the BASIC program area
    dec ... ld (VARS), hl ; VARS, store it.
    ; Load the BASIC block:
    stefrobb stefrobb November 2010 Sinclair Basic
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