user.h

There a lot of program can be used it is wonderful

// #define _Delay50us
// #define _Delay1ms

// #define _Int2Str
// #define _Int2Hex
// #define _Long2Str
// #define _Bcd2Byte
// #define _Byte2Bcd
// #define _Byte2Bin

// #define _WatchDog

#ifndef USER_C51_DEFINE_2003_7_21
#define USER_C51_DEFINE_2003_7_21

#include <REGX52.H>
#include <intrins.h>
#include <Absacc.h>

 
#define  byte  unsigned char                                               
#define  word  unsigned int                                                
#define  uchar unsigned char                                               
#define  uint  unsigned int                                                
                                                                            
#define  Delay5us();  _nop_(); _nop_(); _nop_(); _nop_(); _nop_();         
#define  Delay4us();  _nop_(); _nop_(); _nop_(); _nop_();                  
#define  Delay3us();  _nop_(); _nop_(); _nop_();                           
#define  Delay2us();  _nop_(); _nop_();                                    
#define  Delay1us();  _nop_();                                             
                                                                            
#ifndef  TRUE
#define  TRUE                      1
#endif
#ifndef  FALSE
#define  FALSE                     0
#endif
#ifndef  NULL
#define  NULL                      0
#endif

#ifdef _Delay50us
void Delay50us(unsigned int count)
{
	unsigned int i,j;
	for(i=0;i<count;i++)
	for(j=0;j<6;j++);
}
#endif

#ifdef _Delay1ms
void Delay1ms(unsigned int count)
{
	unsigned int i,j;
	for(i=0;i<count;i++)
	for(j=0;j<120;j++);
}
#endif  

#ifdef _Int2Str
void Int2Str(unsigned int t, unsigned char *str, unsigned char n) 
{
// 将(0~65535)的整数t转成字符串str, n为输出字         	
// 符宽度, 若实际宽度大于n,则以实际宽度为准.          	
	unsigned char a[5]; char i, j;                                 	
	a[0]=(t/10000)%10;         //取得整数值到数组         	
	a[1]=(t/1000)%10;                                     	
	a[2]=(t/100)%10;                                      	
	a[3]=(t/10)%10;                                       	
	a[4]=(t/1)%10;                                        	
                                                      
	for(i=0; i<5; i++)         //转成ASCII码              	
		a[i]=a[i]+'0';                                    	
	for(i=0; a[i]=='0' && i<=3; i++);                     	
	for(j=5-n; j<i; j++)       //填充空格                 	
		{ *str=' ';  str++; }                             	
	for(; i<5; i++)                                       	
		{ *str=a[i]; str++; }  //加入有效的数字           	
	*str='\0'; 
}                                          	
#endif  

#ifdef _Int2Hex
void Int2Hex(unsigned int value, unsigned char *str, unsigned char n)
{
//  将(0~65535)的整数value转成十六进制……字符串str,
//  n为显示十六进制字符个数。
	unsigned char a[4];
	unsigned char i,j;
		
	a[3] = value&0x000F;
	a[2] = (value&0x00F0)>>4;
	a[1] = (value&0x0F00)>>8;
	a[0] = value>>12;

	for(i=0;i<4;i++)
		{
			if(a[i]>=0x0A)  a[i]+=0x37;
			else a[i]+='0';
		}
	
	*str='0';
	*(++str)='x';
	str++;
	
	for(i=0; a[i]=='0'&& i<=3;i++);
		
	for(j=4-n; j<i; j++)       
		{ *str='0';  str++; }

	for(; i<4; i++)
		{ *str=a[i]; str++; }  

	*str='\0';
}	
#endif

#ifdef _Long2Str
void Long2Str(unsigned long int t, unsigned char *str, unsigned char n)
{
	unsigned char a[8]; char i,j;

	a[0]= t/10000000;
	a[1]=(t/1000000)%10;
	a[2]=(t/100000)%10;
	a[3]=(t/10000)%10;
	a[4]=(t/1000)%10;
	a[5]=(t/100)%10;
	a[6]=(t/10)%10;
	a[7]= t%10;


	for(i=0; i<8; i++)
		a[i]=a[i]+'0';

	for(i=0; a[i]=='0' && i<=6; i++)
	
	for(j=8-n; j<i; j++)
	{
		*str=' ';
		str++;
	}		

	for(; i<8; i++)
	{
		*str=a[i];
		str++;
	}
	*str='\0';
}
#endif

#ifdef _Bcd2Byte
unsigned char Bcd2Byte(unsigned char value)
{
	//压缩型BCD码
	return( ((value&0xf0)>>4)*10 + (value&0x0f) );
}	
#endif

#ifdef _Byte2Bcd
unsigned int Byte2Bcd(unsigned char value)
{
	return((value/100%10<<8)|(value/10%10<<4)|(value%10));
}
#endif

#ifdef _Byte2Bin
void Byte2Bin(unsigned char value, unsigned char *str)
{
	char i;
	for(i=7;i>=0;i--)
		{
		*str=((value>>i)&0x01)+'0';
		str++;		
		}
	*str='B'; 
	*(str+1)='\0';
}
#endif

#ifdef _WatchDog
sfr WDT = 0xA6;
void FeedDog()
	{	
	WDT=0x1E;
	WDT=0xE1;//初始化看门狗。
	}
#endif

#ifdef _Stack
#define STACK_MAX_SIZE 12
typedef struct _Stack_
{
	unsigned char x[STACK_MAX_SIZE]; 
	char i;          //i为最后一个元素的下标, i为-1时为空栈
}Stack;

void SetNULL(Stack *s)
{
	s->i=-1;
}

void Push(Stack *s, unsigned char t)  //在堆栈中插入数据t
{	
	if((s->i)==STACK_MAX_SIZE-1)    
		return;       //如果栈满,则不执行任何操作
	else
	{	
		s->i++;
		s->x[s->i]=t;
	}
}

unsigned char Pop(Stack *s)
{
	if((s->i)==-1)                  //当栈为空时返回OxFF;
		return 0xFF;
	else
	{	
		(s->i)--;
		return s->x[(s->i)+1];
    }
}
#endif

#endif