/*
     *File:OS_CPU.H
 */
 /*********************************************
  *   author:yuanguiyou (44b0)
  *   date:  2007 JAN 19
  *********************************************/
  /********************************************
   *  modify by:yuanguiyou
   *  date:  2007 JUL 21 (lpc2131)
   *  reason:
   ********************************************/
   
 #ifdef OS_CPU_GLOBALS
 #define OS_CPU_EXT
 #else
 #define OS_CPU_EXT extern
 #endif
 
 /*
  **********************************************
  *                   data type
  **********************************************
 */
 
 typedef unsigned char  BOOLEAN;
 typedef unsigned char  INT8U;
 typedef signed char    INT8S;
 typedef unsigned short INT16U;
 typedef signed short   INT16S;
 typedef unsigned int   INT32U;
 typedef signed int     INT32S;
 typedef float          FP32;
 typedef double         FP64;
 
 
 typedef unsigned int OS_STK;
 typedef unsigned int OS_CPU_SR;
 
 #define BYTE       INT8S
 #define UBYTE      INT8U
 #define WORD       INT16S
 #define UWORD      INT16U
 #define LONG       INT32S
 #define ULONG      INT32U
 
 /*
  **********************************************
  *          ARM
  *
  **********************************************
  */
#define OS_CRITICAL_METHOD 1


#define   OS_ENTER_CRITICAL() ARMDisableInt();
#define   OS_EXIT_CRITICAL()  ARMEnableInt();



/*
  *********************************
  */
#define  SVC32MODE 0x13

/*stack stuff*/
#define OS_STK_GROWTH  1

#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

/*
 *Function specific to uHAL
 */
 
 /*define in os_cpu_c.c*/

extern void  ARMTargetInit(void);
extern void  ARMTargetStart(void);

/*defined in os_cpu_a.s*/
extern void OS_TASK_SW(void);
extern void ARMDisableInt(void);
extern void ARMEnableInt(void);