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task.h：源码内容

							#ifndef	__TASK_H
#define	__TASK_H
#include "types.h"
#include "regloc.h"
#define	REG_SAVED	REGLOC_NUM
typedef	struct	{
  UINT32  reg[REG_SAVED];
  BYTE	  frac;
} t_task;
typedef	struct	{
  BYTE	task_now;
  BYTE	task_num;
  BYTE	task_len;
  BYTE	task_busy;
  void *task_entry;
} t_taskstate;
#include "bufloc.h"
#include "set.h"
#ifdef	DVDRELEASE	    
#define			TASKNO_MAX	1
#else
#define			TASKNO_MAX	2
EXTERN_DATABUF		t_taskstate	task_state;
EXTERN_DATABUF		t_task		task_table[TASKNO_MAX];
#define SET_TASK(n)     {       
                        task_state.task_now     = n;                    
                        task_state.task_entry   = &task_table[n];       
                        task_state.task_len     = task_table[n].frac;   
                        }
#endif
void	reset_task(void);
#define NextTask()      asm volatile("syscall 0");
#endif/*__TASK_H*/

						