VBE_DISPI_INDEX_ENABLE
bochs_dispi_write(bochs, VBE_DISPI_INDEX_ENABLE, 0);
bochs_dispi_write(bochs, VBE_DISPI_INDEX_ENABLE,
vbox_write_ioport(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED);
[VBE_DISPI_INDEX_ENABLE] = "enable",
if (!(vbe[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED))