without considering the compatibility problems of BIOS and protected mode. See also DOS interrupt call Interrupt descriptor table Input/Output Base Address Ralf Brown's Interrupt List References The x86 Interrupt List (a.k.a. RBIL, Ralf Brown's Interrupt List) Embedded BIOS User's Manual PhoenixBIOS 4.0 User's Manual IBM Personal System/2 and Personal Computer BIOS Interface Technical Reference, IBM, 1988, System BIOS for IBM PCs, Compatibles, and EISA Computers, Phoenix Technologies, 1991, Programmer's Guide to the AMIBIOS, American Megatrends, 1993, The Programmer's PC Sourcebook by Thom Hogan, Microsoft Press, 1991 BIOS Interrupts Application programming interfaces