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  • Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…

    ... , which follows the original routine quite closely (AA's ...
    991 REM MULTIPLY ROUTINE 32*32BIT=64BIT
    ... 1000 REM LMUL:
    1001 PRINT " ";FN b$(V)+FN b ... FN b$(C)
    1002 PRINT "* ";FN b$(S)+FN ... THEN NEXT a
    1393 PRINT "= "'a$(a TO)'32- ...
    Battle Bunny Battle Bunny July 2013 Sinclair Basic
  • Redefine keys routineHow would I go about making a memory efficient redefine keys routine? I only want to define up, down, left and right and reserve key 'H' for pause.…

    ... a memory efficient redefine keys routine?

    I only want ... .

    The key scan routine in the game goes something ...
    daveysludge daveysludge August 2013 Development
  • BIFROST* example: "Knights & Demons DX" source codeA package containing the source files of our multicolor game "Knights & Demons DX" is now available for download [URL="http://www.mediafire.com/?hbch…

    ... = timer - 8 ' update timer
    PRINT AT 10,26;
    IF ... ; 10 THEN PRINT " ";: END IF
    PRINT INK 3;pikes ' print number of ... this is just a simple routine called to pause at the ...
    Einar Saukas Einar Saukas August 2013 Development
  • Routine for Currah speechI'm currently writing a routine for the Currah that will provide speech during a game. A timer is set to initiate the speech every 50 cycles of the …

    I'm currently writing a routine for the Currah that will ...
    daveysludge daveysludge August 2013 Development
  • Asm routine for AY playback?Hi, is possible to create and "name" an asm routine for playing some ay data? If yes, how? Example: Ok , I've finished a sound tracker song, now I n…

    ... create and "name" an asm routine for playing some ay data ... with or without the play routine? How does it work?
    Is possible to call the routine and make it play some ...
    DaRkHoRaCe DaRkHoRaCe September 2013 Development
  • What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…

    ... I could use the ROM routine (It would suffice, any pointers ... I'm asking for a routine :)

    No need for ...
    na_th_an na_th_an October 2013 Development
  • filled shape creating codeDevelopment is continuing well on a resurrected project of mine from about 20 years ago. Speed and size optimizations are going well along with displ…

    ... for needs a type of routine that I've not attempted ... filled 4 sided shape creating routine. Ideally give it 4 sets ... .

    Needs to be fast as hell though!
    jamorski jamorski October 2013 Development
  • Documentation of ZX Spectrum built-in functionsHi, Is there a documentation of the built-in ZX Spectrum 48+ functions (assembly)? I am thinking about something like the documentation included in …

    ... are stored, where is each routine for PRINT, COS, SIN, etc.
    Zerg Zerg October 2013 Development
  • Issue 3 board with strange piggy-back boardIn case you are interested. I?ve never seen something like this before. I have an Issue 3 board here. When I opened the case and found a strange pig…

    ... "booted" too fast, so I carried out a
    Print Peek 23733 ... a Cheetah 32K RAM expansion, Print Peek 23733 showed 255 as ...
    schombi schombi October 2013 Hardware
  • Simple memory transfer routineI'm looking for a simple memory transfer routine that shifts 32 bytes of data from the address HL is set to 55143, I have tried using LDIR, but cant …

    ... for a simple memory transfer routine that shifts 32 bytes of ...
    daveysludge daveysludge November 2013 Development
  • Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…

    ... -bit numbers is far from fast). Printing the largest 2040-bit ... it's very easy to print it. It's easy because ... b,0 ;Flag to not print leading zeros
    ld hl ...
    mcleod_ideafix mcleod_ideafix November 2013 Development
  • SpecBAS 0.800 Released!Hi folks, it's that time again for another release. I was going to add a few more features, but I have other projects on the go at the moment, and it…

    ... to a better string copying routine
    CONST name,value - sets ... INPUT the same as in PRINT
    Sprite clones now inherit ... /> Fixed:

    Certain embedded PRINT commands were evaluated in the ...
    Dunny Dunny December 2013 Sinclair Basic
  • Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…

    The topic is fast multiplication routines, from 8x8 to ... there's interest in being fast but not to the point ... is, jumps to the 8x8 routine.

    The second tests ...
    Alcoholics Anonymous Alcoholics Anonymous January 2014 Development
  • SpecBAS 0.802 Released!Hi folks - It's that time again when I release the latest round of features and bugfixes to SpecBAS :) New for this version are ZONEs which act ver…

    ... the MATCH() function, and PRINT USING (and the USING$() ... their handler statements
    PRINT USING mask$;item;item; ... /> USING$ function - identical to PRINT USING() but returns a formatted ... br /> Optimised the line drawing routine, much faster now
    ...
    Dunny Dunny February 2014 Sinclair Basic
  • TAPlist - the emulator versionI've got this working reasonably well; there's just a couple of small extra features which I want to add. (Recall that TAPlist writes a formatted lis…

    ... , LPRINT, DATA, REM, FOR, INPUT, PRINT, IF).
    [*]Display file used ... written by the ROM SAVE routine. Some editors might treat the ... token lengths and m/code routine for expanding the tokens (see ...
    Battle Bunny Battle Bunny March 2014 Sinclair Basic
  • Unusual custom turbo loaders - with sourcesI have always been fascinated by turbo loaders; my games all feature a TZX version with one of such schemes implemented, and I have been experimentin…

    ... the Biturbo loading scheme is fast and very reliable, since it ... to 'isolate' the loading routine. Only recently I was able ... /> [CODE]
    ; Biturbo 1 loading routine
    ; by Giovanni "G.B ... [CODE]
    ; Biturbo 2 loading routine
    ; by Giovanni "G.B ...
    Alessandro Grussu Alessandro Grussu May 2014 Development
  • Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …

    ... be faster than doing a PRINT AT command.
    Dock Dock June 2014 Sinclair Basic
  • Why are rotozoomers on C=64 so fast ?Hi, I noticed rotozoomers on C64 are really fast. I'm not the best coder on Speccy but I know my pet I never succeed to do rotozoomer (or rotating ch…

    ... rotozoomers on C64 are really fast. I'm not the best ... which is even simpler) so fast in similar resolution.

    catmeows catmeows June 2014 Development
  • LM ram block transfer routineHello! I need to transfer a block of 33000 bytes starting from address 28000 to a new start address, 31000, using a LM routine. Please, someone coul…

    Hello!
    I need to transfer a block of 33000 bytes starting from address 28000 to a new start address, 31000, using a LM routine.
    Please, someone could help me?
    Saltor Saltor July 2014 Sinclair Miscellaneous
  • Can anyone explain this result?This little sub-routine isn't always doing what it's supposed to; ie. transfer the value from SEED to VARS. Can anyone explain why? I've put in the P…

    This little sub-routine isn't always doing what ... 23628",PEEK VAL "23671":
    PRINT PEEK VAL "23627",PEEK VAL ... /> 205 157

    1031 PRINT PEEK 23670,PEEK 23671:
    PRINT PEEK 23627,PEEK 23628:
    Battle Bunny Battle Bunny August 2014 Sinclair Basic
  • Slow/fast games - change speedSome ZX games are too slow or too fast. Problem with speed is aslo in russian ZX games or thanks to different memory layout on zx128 and +2a models. …

    ... are too slow or too fast. Problem with speed is aslo ...
    velesoft velesoft August 2014 Games
  • Decimal to Binary stringHi all, Anyone got a less labour intensive BASIC routine than this? Example:- take 170 and convert to a string "10101010" take 4 and convert to a s…

    ... a less labour intensive BASIC routine than this?

    Example ... LET sf=0
    1035 PRINT AT 21,0;"PLEASE WAIT ... s$ = "0000000" + s$
    1099 PRINT AT 21,0;" "
    1100 ...
    IanJ IanJ August 2014 Sinclair Basic
  • Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…

    ... current layout is optimized for fast character display, as you can ...
    To the software, the routine to display a character, given ... this C64 arrangement makes the routine to calculate the screen address ... one character with the first routine, the value in DE ...
    mcleod_ideafix mcleod_ideafix September 2014 Development
  • Sinclair Print UtilitiesHi all, Can anyone provide me with a 'decent' scan of the instruction manual for Sinclair's PRINT UTILITIES? Mine came without instructions and I w…

    ... instruction manual for Sinclair's PRINT UTILITIES?

    Mine came ... and I would like to print a set off to put ...
    bagpuss22 bagpuss22 September 2014 Sinclair Miscellaneous
  • For Sales: Crash Tech Tape, SuperCopier & Fast SaveThree utility tapes for Sinclair Spectrum, includes: 1) Crash Tech Tape (not currently in WoS archive). [url]http://www.worldofspectrum.org/infoseek…

    ... =0020024[/url]

    3) Fast Save by Trident Software
    sj_howlett sj_howlett September 2014 Sales
  • Playing SID Files... :oS SID File player... Anyone else noticed this in the CPC world?... [url]http://www.cpcwiki.eu/index.php/Sid[/url] On that webpage is a CPC program…

    ... the Speccy isn't fast enough, maybe the routine could be adapted ...
    kgmcneil kgmcneil September 2014 Development
  • LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…

    ... have written the following MC routine that fits into a ... the ROM's LOAD "" CODE routine, nothing fancy headerless loaders, ... .
    call 3503 ; ROM routine - clears screen, opens chan 2 ...
    ld (23739),a ;restore print

    call 61900 ...
    daveysludge daveysludge October 2014 Development
  • +3DOS routine missing in the +3 manualThe other day I realised the details of the +3DOS DOS DELETE routine are missing in the [url="http://www.worldofspectrum.org/ZXSpectrum128+3Manual/ch…

    ... of the +3DOS DOS DELETE routine are missing in the [url ...
    programandala.net programandala.net January 2015 Infoseek database
  • Print WizardHere is the instructions for Print Wizard by Softcat Micros. [url="http://www.thespectrumshow.webspace.virginmedia.com/DL/pwiz.jpg"]Download here.[/…

    Here is the instructions for Print Wizard by Softcat Micros.
    [url="http://www.thespectrumshow.webspace.virginmedia.com/DL/pwiz.jpg"]Download here.[/url]
    Paul-J Paul-J July 2015 Support files
  • Screenshots of Games - gifI'm making a database which has screenshots of 8-bit games, and I noticed the better results you get with .gifs. Clearly saving as .gif from an emu…

    ... quickness I've been using print-screen and simply saving from ... /> It should also be a fast process if possible.
    smartgenes smartgenes August 2015 Emulators
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