/************************************************************************************
*  Copyright (c), 2004-2007,西安銘朗電子科技有限責(zé)任公司
*            All rights reserved.
*
* Http:  www.mlarm.com
* Email: mlarm@mlarm.com
*
* File name: Const.h
* Project  : ML-F020ICB
* Processor: C8051F020
* Compiler : Keil C51 Compiler
* 
* Author:  李林利
* Version: 1.20
* Date:    2007.6.1
* Email:   GavinLi@126.com
* 
* Description: 本文件是針對 keil C51 環(huán)境下對常量和自定義變量的全局說明;
*
* Others: 本文件的的任何定義都不可修改,否則出錯!
*
* Function List: none;
*
* History:
*   1. Author:       李林利  
*	   Version: 	 1.10
*	   Date:         2007.3.12
*      Modification: none
*
*   2. Author:       李林利   
*	   Version: 	 1.00
*      Date:         2004.11.24
*      Modification: 建立文件
*
*************************************************************************************/
#ifndef  null
#define  null                      0
#endif

#ifndef  false
#define  false                     0
#endif

#ifndef  TRUE
#define  TRUE                      1
#endif

#ifndef  FALSE
#define  FALSE                     0
#endif

#ifndef  true
#define  true                      1
#endif

#ifndef  bool
#define  bool   unsigned char
#endif

// Disable all interrupts
#define DISABLE_INTERRUPTS		EA = 0
// Enable all interrupts
#define ENABLE_INTERRUPTS		EA = 1



typedef union {
    struct 
    {
        unsigned char    Type;
        unsigned char    Index;
    } Descriptor;

    struct 
    {
        unsigned char c3;  // MSB for 8051 Keil C
        unsigned char c2;   
        unsigned char c1;   
        unsigned char c0;   // LSB for 8051 Keil C
    } chars;

    struct
    {
        unsigned int i1;    // MSW for 8051 keil C
        unsigned int i0;    // LSW for 8051 Keil C
    } ints;

    unsigned long u0;

}INT32;

typedef union  
{
    struct 
    {
        unsigned char c1;   // MSB for 8051 Keil C
        unsigned char c0;   // LSB for 8051 Keil C
    } chars;

    unsigned int u0;
}INT16;