warning: deprecated-ldio.asm(5): [-Wobsolete]
    LDH is deprecated with values from $00 to $FF; use $FF00 to $FFFF
warning: deprecated-ldio.asm(6): [-Wobsolete]
    LDH is deprecated with values from $00 to $FF; use $FF00 to $FFFF
warning: deprecated-ldio.asm(13): [-Wobsolete]
    LDIO is deprecated; use LDH
warning: deprecated-ldio.asm(14): [-Wobsolete]
    LDIO is deprecated; use LDH
warning: deprecated-ldio.asm(15): [-Wobsolete]
    LDIO is deprecated; use LDH
warning: deprecated-ldio.asm(16): [-Wobsolete]
    LDIO is deprecated; use LDH
warning: deprecated-ldio.asm(20): [-Wobsolete]
    LDH is deprecated with values from $00 to $FF; use $FF00 to $FFFF
warning: deprecated-ldio.asm(21): [-Wobsolete]
    LDH is deprecated with values from $00 to $FF; use $FF00 to $FFFF
warning: deprecated-ldio.asm(28): [-Wobsolete]
    LDIO is deprecated; use LDH
warning: deprecated-ldio.asm(29): [-Wobsolete]
    LDIO is deprecated; use LDH
warning: deprecated-ldio.asm(30): [-Wobsolete]
    LDIO is deprecated; use LDH
warning: deprecated-ldio.asm(31): [-Wobsolete]
    LDIO is deprecated; use LDH