#ifndef _COMMON_H
#define _COMMON_H
#include "stm8s103f.h" 
typedef unsigned int uint;
typedef unsigned char uchar;  
#define MAXTASKS 5
extern volatile unsigned short timers[MAXTASKS];
#define _SS static unsigned char _lc=0; switch(_lc){default: 
#define _EE ;}; _lc=0; return 65535;

#define WAITX(tickets)  do { _lc=(__LINE__%255)+1; return (tickets) ;case (__LINE__%255)+1:;} while(0);
#define WAITUNTIL(A)    do { while(!(A)) WaitX(1);} while(0);

#define RUNTASK(TaskName,TaskID)  do { if (timers[TaskID]==0) { unsigned short d=TaskName(); while(timers[TaskID]!=d) timers[TaskID]=d;} }  while(0); 
#define RUNTASKA(TaskName,TaskID) do { if (timers[TaskID]==0) {unsigned short d=TaskName(); while(timers[TaskID]!=d) timers[TaskID]=d;   continue;} }while(0);   //前面的任务优先保证执行

#define CallSub(SubTaskName) do {unsigned short currdt; _lc=(__LINE__%255)+1; return 0; case (__LINE__%255)+1:  currdt=SubTaskName(); if(currdt!=65535) return currdt;} while(0);
#define INITTASKS() do {unsigned char i; for(i=MAXTASKS;i>0 ;i--) timers[i-1]=0; } while(0);
#define UPDATETIMERS() do{unsigned char i; for(i=MAXTASKS;i>0 ;i--){if((timers[i-1]!=0)&&(timers[i-1]!=65535)) timers[i-1]--;}} while(0);
#endif