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Software for Signboard 2
[Wipe-right]




This routine sholud be put on the main process.
Function
    This routine displays the data which was set to the workarea from left without shifting.
    The position of the displayed data and the data to display isn't shifted.
    In the lighting-up interval, it is 100 milliseconds per row.
    In the animation which is shown above, it is culling to make a file size small.

Source code

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;*******************  Wipe to Right  ********************
        cblock         h'40'
        wiper_lp
        wiper_adr
        wiper_adrw
        wiper_data
        endc

wipe_right
        movlw   d'16'           ;Set loop count
        movwf   wiper_lp        ;Save loop count
        movlw   scrnwhd         ;Set screen work head adr
        movwf   wiper_adrw      ;Save work adr
        movlw   scrnhd          ;Set screen head adr
        movwf   wiper_adr       ;Save write adr

wiper_loop
        movf    wiper_adrw,w    ;Read work adr
        movwf   fsr             ;Set work adr
        movf    indf,w          ;Read work data
        movwf   wiper_data      ;Save data
        movf    wiper_adr,w     ;Read screen adr
        movwf   fsr             ;Set screen adr
        movf    wiper_data,w    ;Read data
        movwf   indf            ;Write data to screen
        call    led_cnt         ;LED control
        call    t100m           ;Wait 100 msec
        incf    wiper_adr,f     ;Screen adr + 1
        incf    wiper_adrw,f    ;Work adr + 1
        decfsz  wiper_lp,f      ;Wipe end ?
        goto    wiper_loop      ;No. Next
        return


Explanation
    The assignment of workarea is done among the 7th line from the 2nd line.

    In this routine, the data which is set on the screen workarea is copied to screen area by one row from left and it calls LED control subroutine.
    The shift speed of the display is 100 milliseconds/row. If changing this timer, the display speed can be changed.