| #ifndef BIOSINT_H |
| #define BIOSINT_H |
| |
| /** |
| * @file BIOS interrupts |
| * |
| */ |
| |
| FILE_LICENCE ( GPL2_OR_LATER ); |
| |
| #include <realmode.h> |
| |
| struct segoff; |
| |
| /** |
| * Hooked interrupt count |
| * |
| * At exit, after unhooking all possible interrupts, this counter |
| * should be examined. If it is non-zero, it means that we failed to |
| * unhook at least one interrupt vector, and so must not free up the |
| * memory we are using. (Note that this also implies that we should |
| * re-hook INT 15 in order to hide ourselves from the memory map). |
| */ |
| extern uint16_t __text16 ( hooked_bios_interrupts ); |
| #define hooked_bios_interrupts __use_text16 ( hooked_bios_interrupts ) |
| |
| extern void hook_bios_interrupt ( unsigned int interrupt, unsigned int handler, |
| struct segoff *chain_vector ); |
| extern int unhook_bios_interrupt ( unsigned int interrupt, |
| unsigned int handler, |
| struct segoff *chain_vector ); |
| |
| #endif /* BIOSINT_H */ |
