大神帮我把这段C代码转换成汇编语言。

2015-12-03 01:35:08 526 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

基于FPGA的DDS信号发生器之前的博客讲到了DDS的基本原理，现在用Verilog代码实现DDS,能够产生四种波形，方波，三角波，正弦波，锯齿波，用按键来控制频率和选择波形。其中按键消抖模块来自小梅哥的FPGA自学笔记设计与验证这本书。 module DDS_Module( Clk, Rst_n, EN, Fword, Key1, Pword, DA_Clk, DA_Data ); input Clk... 阅读详情

朋友正好有这个作业，奈何我不懂C和汇编语言。请各位帮帮忙，最好写上注解，功能要一样，我要和电路图连起来的



#include<reg52.h>

sbit DQ = P3^0;

unsigned char code

tab[] = {0xc0,0xf9,0xa4,0xb0,0x92,0x82,0xf8,0x80,0x90};

void delay(int i)

 {

       while(i--);

  }



void tdelay(int useconds) 

{

int s;

for(s=0;s<useconds;s++)

 ; 

 }

unsigned char ow_reset(void) {

unsigned char presence;

DQ=0;

tdelay(29);

DQ=1;

tdelay(3);

presence = DQ;

tdelay(25);

return(presence);

}

void write_bit(char bitval) {

DQ=0;

if(bitval==1) DQ=1;

tdelay(5);

DQ = 1;





}

void write_byte(char val) {

unsigned char i;

unsigned char temp;

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

temp=val>>i;

temp&=0x01;

write_bit(temp);

}

tdelay(5);

}

unsigned char read_bit(void){

unsigned char i;

DQ=0;

DQ=1;

for(i=0;i<3;i++);

return(DQ);

}

unsigned char read_byte(void){

unsigned char i;

unsigned char value=0;

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

if(read_bit())value|=0x01<<i;

tdelay(6);

}

return(value);

}

unsigned int read_temperature(void){

unsigned char get[10];

unsigned char temp_lsb,temp_msb;

unsigned int t;

unsigned char k;

ow_reset();

write_byte(0xcc);

write_byte(0x44);

tdelay(5);

ow_reset();

write_byte(0xcc);

write_byte(0xbe);

for(k=1;k<2;k++){get[k]=read_byte();}

temp_msb=get[1];

temp_lsb=get[0];

t=temp_msb*256+temp_lsb;

t=t&0x0ff0;

if(t<0xff&&t>0xf0)

t=(-1)*t;

return t>>4;

}

void main(void)

{unsigned char temp,bw,sw,gw,tempd;

while(1)

{temp=read_temperature();

bw=temp/100;

tempd=temp%10;

if(225>temp>=0)

{

 P2=0x01;

 P0=tab[bw];

 delay(1000);

 P2=0x00;

 P2=0x02;

 P0=tab[sw];

 delay(1000);

 P2=0x00;

 P2=0x04;

 P0=tab[sw];

 delay(1000);

 P2=0x00;

 P2=0x08;

 P0=0xc6;

 delay(1000);

 P2=0x00;

}

  if(temp>=40)

  {

      P1=0xff;

}

else

{

     P1=0x00;

}} }