마이크로프로세서 avr studio 소스를 codevision avr소스로 바꿔주시면 감사하겠습니다.

#include <stdlib.h>
#include <avr/interrupt.h>
#include <avr/io.h>
#include <avr/pgmspace.h>
//------------------------------------------------------------------
//bit제어를위해 설정
#define sbit(x,y) (x |= (1<<y))
#define cbit(x,y) (x &= ~(1<<y))
#define tbit(x,y) (x & (1<<y))
//------------------------------------------------------------------
volatile uint8_t msec,m00;
volatile int16_t seed;
volatile uint8_t key1,key1_temp,key_flag,start_flag;
volatile uint8_t key1_on,key1_up,key1_down;
volatile uint8_t data[128],data_count,data_count_end,key_data,timer;
//==================================================================
void port_init(void)
 {
 DDRC = 0xF0;     // PC7-PC4 = LED output
 PORTC = 0x00;
//
 DDRF = 0x00;     // PORTF = KEY input
 PORTF = 0xFF;
 }
//==================================================================
void timer_init(void)
 {
 TCCR0 = 0x0C;                  // 1/64
 ASSR = 0x00;                    
 OCR0 = 249;                    // 16MHz/64/(1+249) = 1ms
 TCNT0 = 0x00;                  

 TIMSK = 0b00000010;            // enable OC0 interrupt
 TIFR = 0x00;                        
 }
//------------------------------------------------------------------
prog_int8_t data_table[4] = {0x10,0x20,0x40,0x80};
//==================================================================
void keyread(void)
 {
 unsigned char i,j;
//
 key1=~PINF&0xf0;      //값을 읽어와 필요부분만 유효화한다.
//------------------------------------------------------------------
 if(key1_temp==key1)   //2회 동일값이면
  {
//---------------------------------------------키를 누를때 1회 on
  i=key1_on;        //이전값
  j=key1_temp;      //현재값
  j=(i^j)&j;       //새로운값만 유효
  key1_down=j;
//---------------------------------------------키를 눌렀다 뗄때 1회ON   
  j=key1_temp;      //현재값
  j=(i^j)&i;        //off된 이전값만 유효 
  key1_up=j;
//---------------------------------------------키가눌려져 있는 동안 on
  key1_on=key1_temp; //현재값
  }
//---------------------------------------------이전 값과 일치하지 않으면
    else key1_temp=key1;
 }
//==================================================================
//10ms 마다 이함수로 진입
//------------------------------------------------------------------
void plc(void)
 {
 uint8_t i;
//------------------------------------------------------------------
 if(data_count_end>100) start_flag=0;//최대 100회 반복
//start
 if(start_flag==0)
  {
  srand(seed);
  data_count=0;
  data_count_end=0;
  start_flag=1;
  key1_down=0;
  for(i=0;i<100;i++)//난수 100개를 저장
   {
   data[i] = rand()%4;
   }
  }
//data 표시
 if(start_flag==1)//
  {
  timer++;
  if(timer<50)
   {
   m00=pgm_read_byte(&data_table[data[data_count_end]]);
   }
  else
   {
   timer=0;
   m00=0;
   start_flag=2;    
   }
  }
//key 변환  
 if(start_flag==2)//
  {

  if(key1_down>0)
   {
   if(tbit(key1_down,4))    key_data=0;
   else if(tbit(key1_down,5)) key_data=1; 
   else if(tbit(key1_down,6)) key_data=2; 
   else       key_data=3; 
   start_flag=3;
   }
  }
//check
 if(start_flag==3)//
  {
  if(key_data==data[data_count])
   {
   data_count++;
   start_flag=2;
   if(data_count>data_count_end)
    {
    start_flag=1;
    data_count=0;
    data_count_end++;
    }
  
   }
  else
   {
   start_flag=4;
   }
  } 
//error
 if(start_flag==4)//
  {
  timer++;
  if(timer<100)
   {
   m00=0xff;
   }
  else if(timer<150)
   {
   timer=0;
   m00=0x00;
   start_flag=0;    
   }
  } 
//------------------------------------------------------------------- 
//out
 PORTC=(PORTC&0x0f)|m00;
//
 key1_down=0;key1_up=0;
 }
//---------------------------------------------------------------------
ISR(TIMER0_COMP_vect)    // OC0 interrupt function
 {
 sei();       //인터럽트 허용

 msec++;
 if(msec==10)//10ms
  {
  msec=0;
  seed++;      //난수의 씨앗 
  keyread();
  plc();      // 10ms를 초과하지말것.(가능하면 5ms이내로할것.)
  }
 }
//=======================================================================
int
main (void)
{
 port_init();
 timer_init();
 sei();
 while(1)
 {

 }
}