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<1234>
  • +3 assembler questionI was wondering if anyone could give any suggestions as to how to get this bit of code working on the +2A/+3 in 128k mode. It works on the +128k/+2 i…

    ... ERR_NR error code
    LD (23560),A ;in LAST_K
    LD ...
    Battle Bunny Battle Bunny August 2010 Sinclair Basic
  • Speeding up select processing...Hi Folks, I have the following code in my program and it works fine but is rather "sluggish". I have even moved it to the beginning of the program …

    ... t(1),0,,,,:
    POKE 23560,0
    280 LET t ... (2)=PEEK 23560:
    LET ss=one:
    Paddy Coleman Paddy Coleman June 2011 Sinclair Basic
  • joining lines of BASICDue to overwhelming demand - well, one demand - well, more of a suggestion, really - here's a routine to join together lines of BASIC. The vertical c…

    ... /> PUSH DE
    LD A,(23560) ;LAST_K
    cp 7 ;EDIT ... ;K_CUR
    NOMOVE: LD A,(23560) ;LAST_K
    CP 10 ;cursor ... cursor up
    SET_K: LD (23560),A ;LAST_K

    FINISH ...
    Battle Bunny Battle Bunny February 2012 Sinclair Basic
  • Jelly-Vision!As threatened in the "'Spectrum Play' Error" thread, here's a ruff'n'reddy interrupt driven full screen wobbling routine which has no practical use w…

    ... ,NOWOBBLE[/color]
    ld a,(23560)
    cp 13
    jr ...
    Battle Bunny Battle Bunny June 2012 Sinclair Basic
  • BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …

    ... />
    extern unsigned char lastK(23560); // last pressed key

    Einar Saukas Einar Saukas July 2012 Development
  • BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…

    ... />
    extern unsigned char lastK(23560); // last pressed key

    Einar Saukas Einar Saukas July 2012 Development
  • BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…

    ... />
    extern unsigned char lastK(23560); // last pressed key

    Einar Saukas Einar Saukas August 2012 Development
  • trying to read keyboardI have the speccy in interrupt mode 1 I used 'IM1' in assembly language then Im printing the contents of memoryu area 23560 to the screen: [quote] l…

    ... the contents of memoryu area 23560 to the screen:
    [quote ... ,#0
    LD (#23560),A
    LD A,(#23560)


    23560 but it makes no difference ...
    slenkar slenkar August 2013 Development
  • MOVE_M Object Movement Manager for BASICAs moving things around on the screen is usually the slowest part of a game written in BASIC, I've been pottering around with this routine to handle …

    ... codes table (copied to (LAST_K,23560))
    ; GOSUB = line*256 for ...
    Battle Bunny Battle Bunny September 2013 Sinclair Basic
  • Venturespeak Helplooking at the code from ZX Computing, October, November & December 1986. How do I make the code do more then 3 letters say 5. and could it be made …

    ... A
    60025 32085C LD (23560),A
    60028 3A795C WAIT2 ... /> 60036 3A085C CONT LD A,(23560)
    60039 FE00 CP 000 ...
    ardentcrest ardentcrest February 2014 Development
  • High score table routineI wrote this general purpose high score table routine. It stores 5 scores and displays them alongside the player names, which are 8 characters long. …

    ... 40000

    LASTK EQU 23560 ; ASCII code of the last ... /> WAITING:

    LD HL,23560
    LD (HL),0
    Alessandro Grussu Alessandro Grussu July 2017 Assembler
  • Need help with keyboard scanning ?After getting frustrated with learning ASM for a while I'm back into it. The little listing below is using the ROM's PRINT AT routine to draw me a sp…

    ... do
    10 PRINT PEEK 23560
    20 GO TO 10 ...
    ivanb303 ivanb303 November 2017 Development
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    ... its code being stored in 23560 (the LASTK system variable) and ...
    na_th_an na_th_an April 2005 Development
  • how do i read the keyboard in assembly? here is the code i tried writting to find out the value of a key call 28f (hex) loop: ld a,255 cp e jr z loop ld (50000),e ret notes from what i …

    ... a,255
    ld hl,23560
    ld (hl),a ; reset ...
    Dr BEEP Dr BEEP August 2005 Development
  • how do i read the keyboard in assembly? here is the code i tried writting to find out the value of a key call 28f (hex) loop: ld a,255 cp e jr z loop ld (50000),e ret notes from what i …

    ... a,255
    ld hl,23560
    ld (hl),a ; reset ...
    mestor mestor August 2005 Development
  • how do i read the keyboard in assembly? here is the code i tried writting to find out the value of a key call 28f (hex) loop: ld a,255 cp e jr z loop ld (50000),e ret notes from what i …

    ... a,255
    ld hl,23560
    ld (hl),a ; reset ... stored in a system variable (=23560), which you reset, you awaits ...
    Dr BEEP Dr BEEP August 2005 Development
  • how do i read the keyboard in assembly? here is the code i tried writting to find out the value of a key call 28f (hex) loop: ld a,255 cp e jr z loop ld (50000),e ret notes from what i …

    ... a,255
    ld hl,23560
    ld (hl),a ; reset ... stored in a system variable (=23560), which you reset, you awaits ...
    mestor mestor August 2005 Development
  • Retargetting the Z88dkWell, I'm asking here because it's come up before, and I assume someone here might know the answer... I'm trying to retarget the Z88DK for the Z80 b…

    ... /> [code]
    extern char LAST_K(23560);
    LASTK = 'a';
    [/code ... char variable LAST_K at address 23560. These sorts of declarations could ...
    Alcoholics Anonymous Alcoholics Anonymous March 2007 Development
  • Game ideaThinking of a game that could enter the Minigame compo I came to the following idea for a game, although it might not fit 1K or 4K: A mazed snake ga…

    ... /> xor a
    ld hl,23560 ; LASTKEY
    ld (hl),a ...
    Dr BEEP Dr BEEP July 2007 Games
  • 'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…

    ... if not
    ld a,(23560)
    cp 113
    jr ...
    Digital Prawn Digital Prawn August 2008 Sinclair Miscellaneous
  • 'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…

    ... if not
    ld a,(23560)
    cp 113
    jr ...
    Digital Prawn Digital Prawn August 2008 Sinclair Miscellaneous
  • A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…

    ... EQU 6
    LAST_K EQU 23560

    MAIN
    CALL ...
    Digital Prawn Digital Prawn December 2008 Development
  • Assembler snippetsI was just thinking that a thread for small but useful assembler snippets to do useful things would be cool for people learning z80 coding. Not to me…

    ... /> xor a
    ld hl,23560 ; sys var of last key ...
    Dr BEEP Dr BEEP January 2009 Development
  • CSSCGC 2008 has now officially begunFor coming last in the 2007 crap game compo, I have the honour and privilege of hosting CSSCGC 2008! I have now put up the CSSCGC 2008 website at …

    ... /> Keys are read by using 23560.
    Keys are default set ...
    Dr BEEP Dr BEEP February 2009 Games
  • CSSCGC 2008 has now officially begunFor coming last in the 2007 crap game compo, I have the honour and privilege of hosting CSSCGC 2008! I have now put up the CSSCGC 2008 website at …

    ... /> Keys are read by using 23560.
    Keys are default set ...
    Digital Prawn Digital Prawn February 2009 Games
  • 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 …

    ... original HL
    ld hl,23560 ; sysvar last key pressed
    Dr BEEP Dr BEEP April 2009 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 …

    ... original HL
    ld hl,23560 ; sysvar last key pressed

    ld hl,23560 ; sysvar last key pressed

    ld hl,23560 ; you load the HiLo Reg ... with the contents of mem 23560 which holds the key pressed ...
    ASH-II ASH-II April 2009 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 …

    ... that.
    [B]LD HL,23560[/B] means [B]LET HL ... = 23560[/B]

    When you ... just done is [B]POKE 23560,0[/B]. So you can ...
    joefish joefish April 2009 Development
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