os_cpu.h

来自「ucos在ti5402的移植,其中包括两个基本任务的建立」· C头文件 代码 · 共 55 行

#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 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                    */

#define OS_STK	       INT16U                    /* 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

#define  OS_CRITICAL_METHOD    1

#if      OS_CRITICAL_METHOD == 1
#define  OS_ENTER_CRITICAL()  asm(" SSBX INTM")        /* Disable interrupts                            */
#define  OS_EXIT_CRITICAL()   asm(" RSBX INTM")        /* Enable  interrupts                            */
#endif

#if      OS_CRITICAL_METHOD == 2
#define  OS_ENTER_CRITICAL()  asm(" SSBX INTM")        /* Disable interrupts                            */
#define  OS_EXIT_CRITICAL()   asm(" RSBX INTM")        /* Enable  interrupts                            */
#endif

/*
*********************************************************************************************************
*                           TMS320C5402 Miscellaneous
*********************************************************************************************************
*/

#define  OS_STK_GROWTH        1                       /* Stack grows from HIGH to LOW memory on 80x86  */
#define  OS_TASK_SW()         asm("  INTR  2")