counter.c8asm

    ld v3, 0

loop:
    cls
    ld i, digits
    ld b, v3

    call draw_number

; Wait 10 ticks
    ld v0, 10
    ld dt, v0
wait:
    ld v0, dt
    se v0, #00
    jp wait

; Wipe number
    call draw_number

    ld v0, 1
    add v3, v0
    jp loop

draw_number:
    ld v0, 0
    ld v1, 2
    ld v2, 2
    call draw_digit

    ld v0, 1
    ld v1, 7
    ld v2, 2
    call draw_digit

    ld v0, 2
    ld v1, 12
    ld v2, 2
    call draw_digit
    ret

draw_digit:
    ld i, digits
    add i, v0
    ld v0, [i]
    ld f, v0
    drw v1, v2, 5
    ret

digits:
    db #00, #00, #00