有几个问题麻烦大家了，c转汇编

pang123hui 2009-12-28 12:55:19

中午我大二学姐给了我几题她们老师布置点题目，希望我帮忙做一下，是单片机点题目，也就是给电路图和C语言代码，要求把C语言代码改成汇编码，因为明天就要交，我也不敢保证今晚我就可以弄出来（本人大一，自学了单片机，底子不牢固啊）

直接来了句：“明天交不了，单片机就挂科了。” 搞得我都没话说了

所以把题目发出来，大家有会点看看能不能帮个忙，先行谢过啦

其实我看了下，都是一本书上的题，叫《单片机C语言程序设计实训100例——基于8051+Proteus仿真》，这本书好像还挺有名的

第一题：是关于 INT0及INT1中断计数的题目



#include <reg51.h>

#define uchar unsigned char

#define uint unsigned int



sbit k3 = P3^4;

sbit k4 = P3^5;



uchar code DSY_CODE[]=

{

 	0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff

};



uchar code Scan_BITs[]=

{

  	0x20,0x10,0x08,0x04,0x02,0x01

};



uchar data Buffer_Counts[]={0,0,0,0,0,0};

uint Count_A=0;

uint Count_B=0;



void DelayMS(uint x)

{

 	uchar t;

	while(x--)

	{

	 	for(t=0;t<120;t++);

	}

}



void Show_Counts()

{

 	uint i;

	Buffer_Counts[2] = Count_A / 100;

	Buffer_Counts[1] = Count_A % 100 /10;

	Buffer_Counts[0] = Count_A % 10;	

	if(Buffer_Counts[2]==0)

	{

	 	Buffer_Counts[2] = 0x0a;

		if(Buffer_Counts[1]==0)

		{

		 	Buffer_Counts[1]=0x0a;

		}

	}



	Buffer_Counts[5] = Count_B / 100;

	Buffer_Counts[4] = Count_B % 100 /10;

	Buffer_Counts[3] = Count_B % 10;	

	if(Buffer_Counts[5]==0)

	{

	 	Buffer_Counts[5] = 0x0a;

		if(Buffer_Counts[4]==0)

		{

		 	Buffer_Counts[4]=0x0a;

		}

	}

	for(i=0;i<6;i++)

	{

	 	P2 = Scan_BITs[i];

		P1 = DSY_CODE[Buffer_Counts[i]];

		DelayMS(1);

	}

}



void main()

{

 	IT0 = 1;

	IT1 = 1;

	PX0 = 1;

	IE  = 0x85;

	while(1)

	{

	 	if(k3 == 0) Count_A = 0;

		if(k4 == 0) Count_B = 0;

		Show_Counts();

	}

}



void EX_INT0() interrupt 0

{

 	Count_A++;

}



void EX_INT1() interrupt 2

{

 	Count_B++;

}

第二题：是关于按键看门狗的



/***************   writer:shopping.w   ******************/

#include <reg52.h>

#define uchar unsigned char

#define uint unsigned int



sfr WDRST = 0xA6;

sbit LED1 = P0^0;

sbit LED2 = P0^1;

sbit K1   = P1^4;



void DelayMS(uint ms)

{

 	uchar i;

	while(ms--)

	{

	 	for(i=0;i<120;i++);

	}

}



void main()

{

 	LED1 = 0;

	LED2 = 1;

	DelayMS(2000);

	TMOD = 0x01;

	TH0  = -16000/256;

	TL0  = -16000%256;

	IE   = 0x82;

	WDRST = 0x1E;

	WDRST = 0xE1;

	while(1)

	{

	 	if(K1==0)

		{

		 	TR0 = 0;

			LED1 = 1;

			LED2 = ~LED2;

			DelayMS(200);

		}

	}

}



void Timer0() interrupt 1

{

 	TH0  = -16000/256;

	TL0  = -16000%256;

	WDRST = 0x1E;

	WDRST = 0xE1;	

}

第三题：是关于74HC595串入并出芯片应用



/***************   writer:shopping.w   ******************/

#include <reg52.h>

#include <intrins.h>

#define uint unsigned int

#define uchar unsigned char



sbit SH_CP = P2^0;

sbit DS    = P2^1;

sbit ST_CP = P2^2;

uchar temp;

uchar code DSY_CODE[]=

{

 	0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90	

};



void Delay(uint x)

{

 	uchar i;

	while(x--)

	{

	 	for(i=0;i<120;i++);

	}

}



void In_595()

{

 	uchar i;

	for(i=0;i<8;i++)

	{

	 	temp <<= 1;

		DS   = CY;

		SH_CP = 1;

		_nop_();

		_nop_();

		SH_CP = 0;

	}

}



void Out_595()

{

 	ST_CP = 0;

	_nop_();

	ST_CP = 1;

	_nop_();

	ST_CP = 0;

}



void main()

{

 	uchar i;

	while(1)

	{

	 	for(i=0;i<10;i++)

		{

		 	temp = DSY_CODE[i];

			In_595();

			Out_595();

			Delay(200);

		}

	}

}