>Now to make a character scroll across the display I need to shift the 5 bit
>value in starting at bit0 through to bit5 and out.

You may find that it is easier to have the display dots in a ring buffer
arrangement, and move the top three bits, as these will always be the same, and
in a cyclic order.

Your move operation then has a table of 8 lots of upper 3 bits in order, and the
code goes like this


; assume n = table_start for first scroll through display

for x = start_buffer to end_buffer
    buffer = (buffer and $1F) or table(n)
    n=(n+1)mod 7
    next x

;prepare table start for next scroll through display
n=(n+1) mod 7

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