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Software for Signboard 2
[Slide-up]




This routine sholud be put on the main process.
Function
    This routine displays the data which was set to the workarea from bottom with shifting.
    The position of the displayed data isn't shifted.
    In the lighting-up interval, it is 100 milliseconds per row.


Source code

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;*********************  Slide-up  ***********************
        cblock         h'40'
        slup_lp
        slup_lpw
        slup_lps
        slup_idx
        slup_idxw
        slup_masks
        slup_maskw
        slup_adr
        slup_adrw
        slup_datas
        slup_dataw
        endc

slup_masks1   equ   b'00111111'
slup_maskw1   equ   b'01000000'
slup_masks2   equ   b'00011111'
slup_maskw2   equ   b'01100000'
slup_masks3   equ   b'00001111'
slup_maskw3   equ   b'01110000'
slup_masks4   equ   b'00000111'
slup_maskw4   equ   b'01111000'
slup_masks5   equ   b'00000011'
slup_maskw5   equ   b'01111100'
slup_masks6   equ   b'00000001'
slup_maskw6   equ   b'01111110'
slup_masks7   equ   b'00000000'
slup_maskw7   equ   b'01111111'

slide_up
        movlw   d'7'            ;Set loop count
        movwf   slup_lp         ;Save loop count
        movlw   d'1'            ;Set index
        movwf   slup_idx        ;Save index

slide_up_loop
        movf    slup_idx,w      ;Read index
        movwf   slup_idxw       ;Save index to work
        decfsz  slup_idxw,f     ;Index = 1 ?
        goto    slup2           ;No. Next
        goto    slide_up1       ;Index = 1
slup2   decfsz  slup_idxw,f     ;Index = 2 ?
        goto    slup3           ;No. Next
        goto    slide_up2       ;Index = 2
slup3   decfsz  slup_idxw,f     ;Index = 3 ?
        goto    slup4           ;No. Next
        goto    slide_up3       ;Index = 3
slup4   decfsz  slup_idxw,f     ;Index = 4 ?
        goto    slup5           ;No. Next
        goto    slide_up4       ;Index = 4
slup5   decfsz  slup_idxw,f     ;Index = 5 ?
        goto    slup6           ;No. Next
        goto    slide_up5       ;Index = 5
slup6   decfsz  slup_idxw,f     ;Index = 6 ?
        goto    slide_up7       ;Index = 7
        goto    slide_up6       ;Index = 6
slide_up_lp1
        incf    slup_idx,f      ;Index + 1
        decfsz  slup_lp,f       ;Loop end ?
        goto    slide_up_loop   ;Next
        return

slide_up1
        movlw   slup_masks1     ;Set mask1 for screen
        movwf   slup_masks      ;Save screen mask1
        movlw   slup_maskw1     ;Set mask1 for work
        movwf   slup_maskw      ;Save work mask1
        call    slup_sub        ;Bit process and LED cont
        goto    slide_up_lp1
slide_up2
        movlw   slup_masks2     ;Set mask2 for screen
        movwf   slup_masks      ;Save screen mask1
        movlw   slup_maskw2     ;Set mask2 for work
        movwf   slup_maskw      ;Save work mask1
        call    slup_sub        ;Bit process and LED cont
        goto    slide_up_lp1
slide_up3
        movlw   slup_masks3     ;Set mask3 for screen
        movwf   slup_masks      ;Save screen mask1
        movlw   slup_maskw3     ;Set mask3 for work
        movwf   slup_maskw      ;Save work mask1
        call    slup_sub        ;Bit process and LED cont
        goto    slide_up_lp1
slide_up4
        movlw   slup_masks4     ;Set mask4 for screen
        movwf   slup_masks      ;Save screen mask1
        movlw   slup_maskw4     ;Set mask4 for work
        movwf   slup_maskw      ;Save work mask1
        call    slup_sub        ;Bit process and LED cont
        goto    slide_up_lp1
slide_up5
        movlw   slup_masks5     ;Set mask5 for screen
        movwf   slup_masks      ;Save screen mask1
        movlw   slup_maskw5     ;Set mask5 for work
        movwf   slup_maskw      ;Save work mask1
        call    slup_sub        ;Bit process and LED cont
        goto    slide_up_lp1
slide_up6
        movlw   slup_masks6     ;Set mask6 for screen
        movwf   slup_masks      ;Save screen mask1
        movlw   slup_maskw6     ;Set mask6 for work
        movwf   slup_maskw      ;Save work mask1
        call    slup_sub        ;Bit process and LED cont
        goto    slide_up_lp1
slide_up7
        movlw   slup_masks7     ;Set mask7 for screen
        movwf   slup_masks      ;Save screen mask1
        movlw   slup_maskw7     ;Set mask7 for work
        movwf   slup_maskw      ;Save work mask1
        call    slup_sub        ;Bit process and LED cont
        goto    slide_up_lp1

slup_sub
        movlw   d'16'           ;Set loop count
        movwf   slup_lpw        ;Save loop count
        movlw   scrnhd          ;Set screen head address
        movwf   slup_adr        ;Save screen head address
        movlw   scrnwhd         ;Set screen work head adr
        movwf   slup_adrw       ;Save screen work adr
slup_sub_lp
        movf    slup_adr,w      ;Read screen adr
        movwf   fsr             ;Set screen adr
        movf    indf,w          ;Read screen data
        movwf   slup_datas      ;Save screen data
        movf    slup_masks,w    ;Read screen mask
        andwf   slup_datas,f    ;Screen data AND Mask
        movf    slup_adrw,w     ;Read screen work adr
        movwf   fsr             ;Set screen work adr
        movf    indf,w          ;Read screen work data
        movwf   slup_dataw      ;Save screen work data
        movf    slup_idx,w      ;Read index
        sublw   d'8'            ;8 - Index
        movwf   slup_lps        ;Save loop count
        decfsz  slup_lps,f      ;Need rotate ?
        goto    slup_sub1       ;Yes. Need rotate
        goto    slup_sub2       ;No. skip
slup_sub1
        rlf     slup_dataw,f    ;Rotate left
        decfsz  slup_lps,f      ;Rotate end ?
        goto    slup_sub1       ;No. More
slup_sub2
        movf    slup_maskw,w    ;Read work mask
        andwf   slup_dataw,f    ;Work data AND Mask
        movf    slup_dataw,w    ;Read work data
        iorwf   slup_datas,f    ;Screen OR Work
        movf    slup_adr,w      ;Read screen adr
        movwf   fsr             ;Set screen adr
        movf    slup_datas,w    ;Read screen data
        movwf   indf            ;Write screen data
        incf    slup_adr,f      ;Screen adr + 1
        incf    slup_adrw,f     ;Screen work adr + 1
        decfsz  slup_lpw,f      ;Loop end ?
        goto    slup_sub_lp     ;No. Next
        call    led_cnt         ;LED control
        call    t100m           ;Wait 100 msec
        return



Explanation
    The assignment of workarea is done among the 14th line from the 2nd line.

    In this routine, the data which is set at the top of screen workarea is copied to bottom of screen area by one bit. It has bit processing by each row to shift a display. Mask patterns are used for the bit processing. After picking out the bit which needs a screen area and a screen workarea, a logical OR is done.
    When processing 1 bit by all the rows, 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.