os_cpu.h

基于Verilog HDL的电梯系统设计

/*
*      s3c2410 Specific code
*			 ADS1.2
*/

#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                           */
typedef unsigned short   INT16U;                   /* Unsigned 16 bit quantity                           */
typedef signed   short   INT16S;                   /* Signed   16 bit quantity                           */
typedef unsigned int  INT32U;                   /* Unsigned 32 bit quantity                           */
typedef signed   int  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                    */
typedef unsigned int OS_CPU_SR;                /* Define size of CPU status register (PSW = 16 bits) */

#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

/* 
	interrupts
*/
#define  OS_CRITICAL_METHOD    3

#if      OS_CRITICAL_METHOD == 3
#define  OS_ENTER_CRITICAL()  (cpu_sr = OSCPUSaveSR())    /* Disable interrupts                        */
#define  OS_EXIT_CRITICAL()   (OSCPURestoreSR(cpu_sr))    /* Enable  interrupts                        */
#endif

/*
	Miscellaneous
*/

#define  OS_STK_GROWTH        1                       /* Stack grows from HIGH to LOW memory on 80x86  */

#define  uCOS                 0x80                    /* Interrupt vector # used for context switch    */

#define  OS_TASK_SW()         OSCtxSw()


#if OS_CRITICAL_METHOD == 3                      /* Allocate storage for CPU status register           */
OS_CPU_SR  OSCPUSaveSR(void);
void       OSCPURestoreSR(OS_CPU_SR cpu_sr);
#endif