68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2009 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef GRUB_INTERRUPT_MACHINE_HEADER
|
|
#define GRUB_INTERRUPT_MACHINE_HEADER 1
|
|
|
|
#include <grub/symbol.h>
|
|
#include <grub/types.h>
|
|
|
|
struct grub_bios_int_registers
|
|
{
|
|
grub_uint32_t eax;
|
|
grub_uint16_t es;
|
|
grub_uint16_t ds;
|
|
grub_uint16_t flags;
|
|
grub_uint16_t dummy;
|
|
grub_uint32_t ebx;
|
|
grub_uint32_t ecx;
|
|
grub_uint32_t edi;
|
|
grub_uint32_t esi;
|
|
grub_uint32_t edx;
|
|
};
|
|
|
|
#define GRUB_CPU_INT_FLAGS_CARRY 0x1
|
|
#define GRUB_CPU_INT_FLAGS_PARITY 0x4
|
|
#define GRUB_CPU_INT_FLAGS_ADJUST 0x10
|
|
#define GRUB_CPU_INT_FLAGS_ZERO 0x40
|
|
#define GRUB_CPU_INT_FLAGS_SIGN 0x80
|
|
#define GRUB_CPU_INT_FLAGS_TRAP 0x100
|
|
#define GRUB_CPU_INT_FLAGS_INTERRUPT 0x200
|
|
#define GRUB_CPU_INT_FLAGS_DIRECTION 0x400
|
|
#define GRUB_CPU_INT_FLAGS_OVERFLOW 0x800
|
|
#ifdef GRUB_MACHINE_PCBIOS
|
|
#define GRUB_CPU_INT_FLAGS_DEFAULT GRUB_CPU_INT_FLAGS_INTERRUPT
|
|
#else
|
|
#define GRUB_CPU_INT_FLAGS_DEFAULT 0
|
|
#endif
|
|
|
|
void EXPORT_FUNC (grub_bios_interrupt) (grub_uint8_t intno,
|
|
struct grub_bios_int_registers *regs)
|
|
__attribute__ ((regparm(3)));
|
|
struct grub_i386_idt
|
|
{
|
|
grub_uint16_t limit;
|
|
grub_uint32_t base;
|
|
} GRUB_PACKED;
|
|
|
|
#ifdef GRUB_MACHINE_PCBIOS
|
|
extern struct grub_i386_idt *EXPORT_VAR(grub_realidt);
|
|
#endif
|
|
|
|
#endif
|