/***************************************************** $Workfile:   os_cpu.h     for SkyEye simulator    ** $Revision:   1.0                                  ** $Author:   Chen Yu, Li Ming                       ** $Email:   chenyu@hpclab.cs.tsinghua.edu.cn        **           lmcs00@mails.tsinghua.edu.cn            ** $Date:   Dec 17 2002 12:20:30                     *****************************************************//***********************************************************************************************************                                               uC/OS-II*                                        The Real-Time Kernel**                        (c) Copyright 1992-1998, Jean J. Labrosse, Plantation, FL*                                          All Rights Reserved*                        (c) Copyright ARM Limited 1999.  All rights reserved.**                                          ARM Specific code** File : OS_CPU.H**********************************************************************************************************/#ifdef  OS_CPU_GLOBALS#define OS_CPU_EXT#else#define OS_CPU_EXT  extern#endif/***********************************************************************************************************                                              DATA TYPES*                                         (Compiler Specific)**********************************************************************************************************/typedef unsigned char  BOOLEAN;typedef unsigned char  INT8U;                    /* Unsigned  8 bit quantity                           */typedef signed   char  INT8S;                    /* Signed    8 bit quantity                           *///chy 2003-01-22 int is 32bit  short is 16bittypedef unsigned short   INT16U;                   /* Unsigned 16 bit quantity                           */typedef signed   short   INT16S;                   /* Signed   16 bit quantity                           *///typedef unsigned int   INT16U;                   /* Unsigned 16 bit quantity                           *///typedef signed   int   INT16S;                   /* Signed   16 bit quantity                           *///------------------------------------------------------------------------typedef unsigned long  INT32U;                   /* Unsigned 32 bit quantity                           */typedef signed   long  INT32S;                   /* Signed   32 bit quantity                           */typedef float          FP32;                     /* Single precision floating point                    */typedef double         FP64;                     /* Double precision floating point                    */typedef unsigned int   OS_STK;                   /* Each stack entry is 16-bit wide                    */#define BYTE           INT8S                     /* Define data types for backward compatibility ...   */#define UBYTE          INT8U                     /* ... to uC/OS V1.xx.  Not actually needed for ...   */#define WORD           INT16S                    /* ... uC/OS-II.                                      */#define UWORD          INT16U#define LONG           INT32S#define ULONG          INT32U/* **********************************************************************************************************                              ARM, various architectures***********************************************************************************************************/#define	OS_ENTER_CRITICAL()	ARMDisableInt()#define	OS_EXIT_CRITICAL()	ARMEnableInt()/* * Definitions specific to ARM/uHAL */#define	SVC32MODE	0x13/* stack stuff */#define OS_STK_GROWTH    1/* angel takes up stack */#define SEMIHOSTED_STACK_NEEDS 1024/* idle task stack size (words) */#ifdef SEMIHOSTED#define OS_IDLE_STK_SIZE        (32+SEMIHOSTED_STACK_NEEDS)#else#define OS_IDLE_STK_SIZE        32#endif#define OS_TASK_SW OSCtxSw/* defined in os_cpu_a.s */extern void OSCtxSw(void);           // task switch routineextern void OSIntCtxSw(void);           // interrupt context switchextern void ARMDisableInt(void);        // disable global interruptsextern void ARMEnableInt(void);         // enable global interruptsextern void OSTickISR(void);		// timer interrupt routine