data_cpu.h

有限状态机事件分发构件

/*
*********************************************************************************************************
* File : DATA_CPU.H  for LPC9XX
* By   : Haven
* date:2005.1.21
*********************************************************************************************************
*/

#ifndef _DATA_DEF_H
#define _DATA_DEF_H

#ifdef  DATA_DEF_GLOBALS
#define DATA_DEF_EXT
#else
#define DATA_DEF_EXT  extern
#endif

/*
*********************************************************************************************************
*                                              DATA TYPES
*                                         (Compiler Specific)
*********************************************************************************************************
*/


typedef unsigned char   INT8U;                    /* Unsigned  8 bit quantity                           */
typedef unsigned char   BOOLEAN;
typedef          char   INT8S;                    /* Signed    8 bit quantity                           */
typedef unsigned int    INT16U;                   /* Unsigned 16 bit quantity                           */
typedef          int    INT16S;                   /* Signed   16 bit quantity                           */
typedef unsigned long   INT32U;                   /* Unsigned 32 bit quantity                           */
typedef          long   INT32S;                   /* Signed   32 bit quantity                           */
typedef float           FP32;                     /* Single precision floating point                    */

typedef unsigned char  OS_STK;                   /* Each stack entry is 8-bit wide                     */
typedef unsigned char  OS_CPU_SR;                /* Define size of CPU status register (PSW = = 8 bits)         */

/*
*********************************************************************************************************
*                                              CONSTANTS
*********************************************************************************************************
*/
#define  FALSE    0
#define  TRUE     1
/*
*********************************************************************************************************
*                              
*********************************************************************************************************
*/
#define  OS_CRITICAL_METHOD    1
#if      OS_CRITICAL_METHOD == 1
#define  OS_ENTER_CRITICAL()  EA=0		    				/* Disable interrupts                            */
#define  OS_EXIT_CRITICAL()   EA=1			 				/* Enable  interrupts                            */
#endif
#if      OS_CRITICAL_METHOD == 2
/* As an undocumented keyword of keil c. __asm is supported in Keil C v6.20.
. No other means to define assemble language code in a macro, I have to use it here. If your compiler does not support __asm, use method 1 or 3 then. */
/* A2 AF MOV C, EA*/
/* C2 AF CLR EA   */
/* C0 D0 PUSH PSW */
//#define  OS_ENTER_CRITICAL()    __asm DB 0A2H, 0AFH, 0C2H, 0AFH, 0C0H, 0D0H

/* D0 D0 POP PSW   */
/* 92 AF MOV EA, C */
//#define  OS_EXIT_CRITICAL()     __asm DB 0D0H, 0D0H, 092H, 0AFH
#endif
#if      OS_CRITICAL_METHOD == 3
#define  OS_ENTER_CRITICAL()  (cpu_sr = EA, EA=0)    /* Disable interrupts                        */
#define  OS_EXIT_CRITICAL()   (EA=cpu_sr)    /* Enable  interrupts                        */
#endif
#endif