taglinefilesource code
dseg1071drivers/char/apm_bios.capm_bios_info.cseg_16, apm_bios_info.dseg);
dseg1084drivers/char/apm_bios.c0xc0000000 + ((unsigned long)apm_bios_info.dseg << 4));
dseg37include/linux/apm_bios.hunsigned short  dseg;