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<1…19202122232425…34>
  • IN or INKEY ?just curious which is better to use.. I have a menu done.. and use 6/7 to go up down it + space to cycle thru the options (using inkey).. obv. if I w…

    ... lack of bitwise operators in BASIC could be augmented as follows ... /> RETC[/CODE]

    3) From BASIC you would then POKE the ...
    Dr BEEP Dr BEEP October 2011 Sinclair Basic
  • Fastest way to mirror a byte?I.E. turning 01100000 into 00000110, in assembly. I'm trying but I suck at stuff with rotation and the carry bit. Any pointers?

    ... calc?)[/quote]
    BASIC expects HL' to hold that value ... push hl ; save HL' for BASIC

    ld hl,&57ff ...
    ld e,(hl)
    ld (hl),a
    dec ... br />
    pop hl ; restore HL'
    exx
    ...
    obo obo October 2011 Development
  • Pac-Man EmulatorMy Pac-Man Emulator for the Spectrum +2A/+3 is now available for download from: [url]http://simonowen.com/spectrum/pacemuzx/[/url] You'll need to su…

    ... ). Just type "GO TO 90" from BASIC to start the emulation after ...
    ccowley ccowley November 2011 Brand new software
  • Pac-Man EmulatorMy Pac-Man Emulator for the Spectrum +2A/+3 is now available for download from: [url]http://simonowen.com/spectrum/pacemuzx/[/url] You'll need to su…

    ... ). Just type "GO TO 90" from BASIC to start the emulation after ...
    ewgf ewgf November 2011 Brand new software
  • 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…

    ... the builtin RNG is far from ideal - it will only manage ... ) How would you use if from BASIC? For example, if I want ...
    Paddy Coleman Paddy Coleman December 2011 Development
  • BREAK from GOSUBHere's another one. Just in case you wanted to break out of multiple GOSUB levels with a single command, here's a routine to do it, tested on all mod…

    ... /> ADD HL, SP ;(ERR_SP)
    LD SP, HL ;from m/c ... /> LD B, A ;from calc stack
    EX ... restore end marker
    push hl ;and (ERR_SP)
    exx ...
    Battle Bunny Battle Bunny December 2011 Sinclair Basic
  • Auto generated spritesLooking around for some graphics I came across [url]http://blog.disktree.net/?p=19[/url] , one of several such pages. Need the odd 8x8 UDG or two (…

    ... C (you can poke it from BASIC if you like - eg: POKE ... extra line to the Example BASIC used for displaying them, for ... the "17" in line 5 from POKE 30003,17 to anything ... with the culling of data from the rom, could provide more ...
    kgmcneil kgmcneil December 2011 Development
  • Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…

    ... how to enter the opcodes from BASIC. lol Took me a while ...
    Arjun Arjun January 2012 Development
  • Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…

    ... how to enter the opcodes from BASIC. lol Took me a while ... mysterious chapter 26 of the BASIC manual . . .
    bigjon bigjon January 2012 Development
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    ... faster than doing the DRAW from BASIC, since BASIC uses the very same ... help to cut out the BASIC interpretation time for each statement ...
    Arjun Arjun January 2012 Development
  • DivIDE questionCan anyone advise me if this is a good option for a DivIDE? [url]http://www.ebay.co.uk/itm/256MB-IDE-SLC-Flash-Module-44pin-DOM-DiskOnModule-tested-…

    ... between FAT16 and FAT32 partitions from basic
    FATWARE also support FAT16 ...
    velesoft velesoft January 2012 Hardware
  • SnapToTap R2.3I've added z80 file support and raw binary exporting options to snaptotap. it's still 48k only though. [url]http://arda.kisafilm.org/fish/SnaptoTap…

    ... zx spectrum *and* start it from basic. Adding 128k is almost impossible ... without writing custom loaders, as basic cannot page 128k ram. If ...
    RobeeeJay RobeeeJay January 2012 Announcements
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... do "PRINT AT 0,0;" From Basic job done.
    SKR SKR January 2012 Sinclair Basic
  • Is there a limit to the numberof variables you can have in BASIC..... Reason I ask is I've got an idea....but using my "lowest common denominator" approach to code I fear that I'…

    ... check for UDGs on screen from BASIC, as SCREEN$ doesn't recognize ...
    Battle Bunny Battle Bunny January 2012 Sinclair Basic
  • Is there a limit to the numberof variables you can have in BASIC..... Reason I ask is I've got an idea....but using my "lowest common denominator" approach to code I fear that I'…

    [QUOTE=Battle Bunny;598117].......(ATTR is the only way to check for UDGs on screen from BASIC, as SCREEN$ doesn't recognize them.)
    [/QUOTE]


    It does when you make your UDG's in your own characterset.
    Dr BEEP Dr BEEP January 2012 Sinclair Basic
  • Is converting Microdrive formats possible???Hi. First post. I'm a long-time Speccy owner, was lost, but found my way home! :D I have a Disciple as well... Now to my question, but first the …

    ... to a 'standard' code file, from Basic, load it to memory, then ...
    omelette omelette February 2012 Sinclair Miscellaneous
  • New WIP from Kabuto Factory: A.R.C.O.S.Hi everybody! After a long time in silence (...you know, life and its commitments...), we're coming back with new WIP for Speccy: A.R.C.O.S., a new …

    ... calling a machine code routine from Basic (you can press Break if ... on a screen data taken from your game.


    Ralf Ralf February 2012 Brand new software
  • New WIP from Kabuto Factory: A.R.C.O.S.Hi everybody! After a long time in silence (...you know, life and its commitments...), we're coming back with new WIP for Speccy: A.R.C.O.S., a new …

    ... calling a machine code routine from Basic (you can press Break if ... on a screen data taken from your game.


    Basic :)
    Be sure it'll ...
    Baron Ashler Baron Ashler February 2012 Brand new software
  • Replacing the +3 disk driveI've come into possession of a +3 with a none functioning disk drive. I've been doing some searching and know that the 180k floppy can be replaced wi…

    ... it?[/QUOTE]

    Not from BASIC no. It can use disks ...
    guesser guesser February 2012 Hardware
  • Precisely timed loops in assemblyI'm looking for a way to make my code stop until the raster has reached the lower screen border (right after having drawn the last pixel line). I und…

    ... designed to be used from BASIC (or from ZX Basic using Boriel's compiler ...
    na_th_an na_th_an February 2012 Development
  • Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…

    ... go in any reasonable location from above RAMTOP to down ... still be referenced by LET from BASIC afterwards. Also, if shifting ... around VARS itself then normal BASIC assignments won't work but ... thus giving a "Nonsense in BASIC" error when the "(" is encountered ...
    Battle Bunny Battle Bunny February 2012 Sinclair Basic
  • Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…

    ... go in any reasonable location from above RAMTOP to down ... still be referenced by LET from BASIC afterwards. Also, if shifting ... around VARS itself then normal BASIC assignments won't work but ... thus giving a "Nonsense in BASIC" error when the "(" is encountered ...
    Paddy Coleman Paddy Coleman February 2012 Sinclair Basic
  • raspberry pion the bbc news at the moment..

    ... with a built in assembler from basic prompt. wonder if more had ...
    fog fog February 2012 Chit chat
  • Poking a string to memory...I'm looking to poke a string of characters including colour control codes to memory, I'm currently doing it by hand: 16,2,19,1,22,1,1,144 That equa…

    ... VARS area, or call LOOK_VARS from machine code. It depends on ... it's to be referenced from BASIC or m/code afterwards as ...
    Battle Bunny Battle Bunny March 2012 Sinclair Basic
  • Reading interface 2 using the IN commandHow do you read using the IN command from BASIC? You can read multiple keys at once, but I cant remember the values...

    ... of how to do it from Basic, but your first step should ... learn what value to expect from each key pressed.

    Run that program, press keys from 6 to 0 one by ... you will use in your BASIC programs.

    Each person ...
    zxbruno zxbruno March 2012 Sinclair Basic
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... which allow drawing tiles, acces from basic or whatever then do it ... -in for some AY miracles - from phaser sound to play short ...
    Fikee Fikee March 2012 Brand new software
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... drive a system like that from BASIC - you wouldn't be able ... ]Buzzsaw+[/I] writes one byte from a buffer to OUT 254 ... border. However, this all detracts from the number of attribute bytes ...
    joefish joefish March 2012 Brand new software
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... which allow drawing tiles, acces from basic or whatever then do it ... -in for some AY miracles - from phaser sound to play short ... exact that calling it directly from the interrupt vector, since BIFROST ...
    Einar Saukas Einar Saukas March 2012 Brand new software
  • Music cassettesWas there ever a utility on the Spectrum which when you to play an audio cassette in the player enabled the loading border stripes 'move to the music…

    ... routine that could be called from BASIC and it would "react" with ... just by reading the audio from the tape port. You could ... exactly like the LOAD routine from the Speccy ROM.

    zxbruno zxbruno March 2012 Sinclair Miscellaneous
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... forgot to remove "ex de, hl" from yours.
    Einar Saukas Einar Saukas March 2012 Brand new software
<1…19202122232425…34>

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