os_cpu.h

~{WwU_J9SC5D~}ucos~{T4Bk#,1`RkA4=S5wJT>y?IRT#,4x~}uart~{2bJT~}

/*
*********************************************************************************************************
*                                               uC/OS-II
*                                        The Real-Time Kernel
*
*                         (c) Copyright 1992-2002, Jean J. Labrosse, Weston, FL
*                                          All Rights Reserved
*
*                        (c) Copyright ARM Limited 1999.  All rights reserved.
*
*                                          ARM Specific code
*
* File         : OS_CPU.H
* By           : Jean J. Labrosse
*********************************************************************************************************
*/
#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                    */

typedef unsigned int   OS_STK;                   /* Each stack entry is 32-bit wide                    */
typedef unsigned int   OS_CPU_SR;                /* Define size of CPU status register (PSW = 32 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

/* 
*********************************************************************************************************
*                              ARM, various architectures
*
*********************************************************************************************************
*/
#define OS_CRITICAL_METHOD		3
/*
*Disable / Enable interrupt
*/
#define	OS_ENTER_CRITICAL()	  cpu_sr = ARMIsDisableInt(); ARMDisableInt()
#define	OS_EXIT_CRITICAL()	  if(cpu_sr == 0) ARMEnableInt()

/*
*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