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<1…17181920212223…34>
  • Lame BASIC BEEPer editor - alphaI like music, like BASIC and find all current music utilities complicated. Since I enjoy Sinclair BASIC so much, I came up with a simple BEEPer edito…

    ... 't very good at calculating decimal fractions close to zero due ... TO +1 STEP 0.01: PRINT a: NEXT a[/code]
    PRINT a,c/100: LET c ...
    Battle Bunny Battle Bunny May 2012 Sinclair Basic
  • Decimals!Quick couple of (probably very silly) questions, folks... If I have an input command in a program asking "How many potatoes do you want to buy from …

    ... to be taken when using decimal fractions on the Spectrum, especially ... example might be expected to print 9.5, 9.51, 9 ... TO 100000 STEP 0.01: PRINT a-10*INT (a/10 ...
    Battle Bunny Battle Bunny May 2012 Sinclair Basic
  • number padding functionI wrote a number padding function in BASIC a while ago, but when I came to want it again I couldn't find it, so I've done this enhanced [url=http://w…

    ... ,0
    call COPYDIG ;copy decimal
    dec de
    ld ... a,(ix+20) ;A =maximum decimal padding (signed)
    call PADSUB ... :sub b ;A =maximum padding - byte count
    jr nc,PADLR ...
    Battle Bunny Battle Bunny May 2012 Sinclair Basic
  • question re. STR$ bugCould someone point me to whereabouts in the ROM this goes wrong? [code]PRINT PAPER 5;1;STR$ 234[/code] (Only the "1" prints in cyan.) It's not the m…

    This routine (48 bytes) provides a BASIC replacement for STR$ which fixes those two bugs; use "FN s$(numeric_expression)" instead of "STR$ numeric_expression". I copied the ROM's method used in CIRCLE & DRAW for checking -1
    Battle Bunny Battle Bunny May 2012 Sinclair Basic
  • Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…

    ... />
    To make a decimal result, we grab 16 bits ... />
    [CODE]
    REM Print the base random 8 bits ... :
    print randomBase()

    REM print as a decimal, like basic ... 's random number:
    print randomFixed ...
    Gedlion Gedlion May 2012 Development
  • 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…

    ... chips (fetching more than one byte from the same row of ... , which makes it fast to print text since you only have ... advance your memory pointer 1 byte to get to the next ...
    Winston Winston June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... some time ago...
    [code]Print push bc
    push hl ... be aligned to a 8-byte boundary.
    (2) Best case ...
    mcleod_ideafix mcleod_ideafix June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... 've modified the SP char print using bc as string marker ... hl,sp. It doesn't print across segments either but could ... /> ld a,(bc) ;get string byte
    or a
    jp ...

    inc bc ;next byte of string

    ex ...
    R-Tape R-Tape June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... hl,sp. It doesn't print across segments either but could ... /> ld a,(bc) ;get string byte
    or a
    jp ...

    inc bc ;next byte of string

    ex ... /> This version prints a 8 byte char, so on setting rom ...
    Dr BEEP Dr BEEP June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... ve modified the SP char print using bc as string marker ... hl,sp. It doesn't print across segments either but could ...

    inc bc ;next byte of string

    ex ... /> ld a,(bc) ;get string byte
    add a ;x2 for ...
    Hikaru Hikaru June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... needed, always 1 character to print![/B]
    [B]; jr entry ...

    inc bc ;next byte of string

    ex ... /> ld a,(bc) ;get string byte
    add a ;x2 for ...
    Dr BEEP Dr BEEP June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... entry you have come to print at least one char, which ...

    inc bc ;next byte of string

    ex ... ld a,(bc) ;get string byte
    add a,a ;Hikaru ...
    R-Tape R-Tape June 2012 Development
  • General purpose full screen input routineHi Folks, One of the things that annoyed me back in the 1980s with most BASICs was the lack of a full screen "formatted" input function. You could …

    ... file address DF_CC after doing: "PRINT AT 0,0;CHR$ 8 ... overwrites eight bytes in 256 byte steps from 22783 to 24575 ... I was using the 96-byte validation table idea, then at ...
    Battle Bunny Battle Bunny June 2012 Sinclair Basic
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... /> ld a,c ;addr low byte
    ld (de),a
    ld a,b ;addr high byte
    ld (de),a
    PRINT USR 24576. A "healthy" ...
    mcleod_ideafix mcleod_ideafix June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... better using a 2048-byte boundary instead, so the ... QUOTE=Baggers;635049][code]
    ; Print out a character
    ; ---------------------< ... at an odd 1024-byte boundary. In this case ... :

    [CODE]; Print out a character
    ; ---------------------< ...
    Einar Saukas Einar Saukas June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... is the same as 15360 decimal, exactly as I wrote in ... 4 T-states faster, 1 byte shorter, and it can even ...
    Einar Saukas Einar Saukas June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... have a routine that can print (actually it converts to ASCII ... 2040 bits in size, using decimal, not hex.
    [url]http ... be used (and optimized) to print 8, 16, 32 or 64 ...
    mcleod_ideafix mcleod_ideafix June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... : de = char *buffer (one byte past last digit written)
    byte past last char written)


    decimal:

    ; hl = unsigned ... ; exit : hl = address past last byte written
    ;
    ; uses ...
    Alcoholics Anonymous Alcoholics Anonymous June 2012 Development
  • Good character sets ?Just wondering if anyone had any favourite character sets ? :) The one in SE basic is quite nice and I'm aware (I used to have it in my head I'm sur…

    ... Winston. Do you have a print of the entire character set ... pixel level or a 768 byte file?

    Paddy
    Paddy Coleman Paddy Coleman July 2012 Sinclair Miscellaneous
  • Good character sets ?Just wondering if anyone had any favourite character sets ? :) The one in SE basic is quite nice and I'm aware (I used to have it in my head I'm sur…

    ... Winston. Do you have a print of the entire character set ... pixel level or a 768 byte file?[/QUOTE][url=http://mdfs ...
    Jonathan Harston Jonathan Harston July 2012 Sinclair Miscellaneous
  • Good character sets ?Just wondering if anyone had any favourite character sets ? :) The one in SE basic is quite nice and I'm aware (I used to have it in my head I'm sur…

    ... Winston. Do you have a print of the entire character set ... pixel level or a 768 byte file?

    Paddy[/QUOTE ... want to get a 768 byte file.
    Winston Winston July 2012 Sinclair Miscellaneous
  • How to change the colour of an input line?Hello my fellow WoS'ers I remember the way-back machine on the humble 48k where I could write a REM statement in basic, but I could also change the …

    ... the listing: there's a byte in RAM Page 7, at ... old magazine.

    * 64919 decimal

    Cheers.
    The_Bert The_Bert July 2012 Sinclair Basic
  • Copying Files in +3e BASIC (not using COPY command)Hello there my fellow WoS'ers Yet again I find myself in need of guidance, I am sooo close to getting my prototype up. I am writing my own byte cop…

    ... -Line 160 should be 160 PRINT #4; CHR$ c;
    ... yourself

    You PRINT was adding 2 plus chars ... of adding 110 to a byte, it was adding "110", ... RETURN #5,p
    160 PRINT #4; CHR$ d;
    ... 4 : CLOSE #5 :
    210 PRINT "File End "; p ;" Bytes of ...
    Encarnado Encarnado July 2012 Sinclair Basic
  • Copying Files in +3e BASIC (not using COPY command)Hello there my fellow WoS'ers Yet again I find myself in need of guidance, I am sooo close to getting my prototype up. I am writing my own byte cop…

    ... really checked if PRINT #4;d; writes a byte or if it ...
    Encarnado Encarnado July 2012 Sinclair Basic
  • Switching 48/128 modes within a BASIC programI'm not sure what use this would be; ie. being able to switch between 48k and 128k modes and back again from within a continuously running BASIC prog…

    ... which to stack a $FF byte for the error code, but ... /> LET mode=48+bit4*80: PRINT AT 0,0;CHR$ 163 ... /> REM Error Return
    9000 PRINT "Report code ";FN m(PEEK ...
    Battle Bunny Battle Bunny July 2012 Sinclair Basic
  • Work out attribute location in MCHow do I go about writing a MC routine which calculates the attribute address from a set of PRINT co-ordinates. I know you in basic you multiply the…

    ... address from a set of PRINT co-ordinates. I know you ... 3 and 4 to hi byte (they become bits 0 and ... -2 do not affect hi byte at all. So perhaps you ... 0 and 1 of hi byte. So you don't really ... from 2-7 of high byte. If your address is in ...
    tstih tstih August 2012 Development
  • .chr to .binSo here goes another stupid question. What's the best way to convert .chr files created with ZX-Paintbrush to binary or asm format? I know ZX-Blocked…

    ... variant models/ROMs which will print all 256 characters (without shuffling ... using a completely new 1792 byte character set definition is in ...
    chev chev August 2012 Development
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