but here is some issues with color.
Now I see only one line of characters.should I use VRES?
ld hl,($bff4) ld de,16+4 add hl,de; ld e,(hl) inc hl ld d,(hl); ld b,0 ld a,$FF out ($B3),amm: ld a,b ld (de),a inc de inc b jr nz,mm
same picture: