warning: deprecated-ldio.asm(8): [-Wobsolete]
    LD [C], A is deprecated; use LDH [C], A
warning: deprecated-ldio.asm(9): [-Wobsolete]
    LD A, [C] is deprecated; use LDH A, [C]
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(23): [-Wobsolete]
    LD [C], A is deprecated; use LDH [C], A
warning: deprecated-ldio.asm(24): [-Wobsolete]
    LD A, [C] is deprecated; use LDH A, [C]
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