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/**
* @file
*
* @brief Intel CPU Constants and Definitions
*
* This file contains definition and constants related to Intel Cpu
*/
/*
* COPYRIGHT (c) 1998 valette@crf.canon.fr
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _RTEMS_SCORE_REGISTERS_H
#define _RTEMS_SCORE_REGISTERS_H
/*
* definition related to EFLAGS
*/
#define EFLAGS_CARRY 0x1
#define EFLAGS_PARITY 0x4
#define EFLAGS_AUX_CARRY 0x10
#define EFLAGS_ZERO 0x40
#define EFLAGS_SIGN 0x80
#define EFLAGS_TRAP 0x100
#define EFLAGS_INTR_ENABLE 0x200
#define EFLAGS_DIRECTION 0x400
#define EFLAGS_OVERFLOW 0x800
#define EFLAGS_IOPL_MASK 0x3000
#define EFLAGS_NESTED_TASK 0x8000
#define EFLAGS_RESUME 0x10000
#define EFLAGS_VIRTUAL_MODE 0x20000
#define EFLAGS_ALIGN_CHECK 0x40000
#define EFLAGS_VIRTUAL_INTR 0x80000
#define EFLAGS_VIRTUAL_INTR_PEND 0x100000
#define EFLAGS_ID 0x200000
/*
* definitions related to CR0
*/
#define CR0_PROTECTION_ENABLE 0x1
#define CR0_MONITOR_COPROC 0x2
#define CR0_COPROC_SOFT_EMUL 0x4
#define CR0_FLOATING_INSTR_EXCEPTION 0x8
#define CR0_EXTENSION_TYPE 0x10
#define CR0_NUMERIC_ERROR 0x20
#define CR0_WRITE_PROTECT 0x10000
#define CR0_ALIGMENT_MASK 0x40000
#define CR0_NO_WRITE_THROUGH 0x20000000
#define CR0_PAGE_LEVEL_CACHE_DISABLE 0x40000000
#define CR0_PAGING 0x80000000
/*
* definitions related to CR3
*/
#define CR3_PAGE_CACHE_DISABLE 0x10
#define CR3_PAGE_WRITE_THROUGH 0x8
#define CR3_PAGE_DIRECTORY_MASK 0xFFFFF000
#endif
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