帮我看看93c46的程序

我现在有一份vc下的93c46读写程序，现在还没有调试通过大家帮我看看啊
// 1.cpp : Defines the entry point for the console application.
//
#include <conio.h>
#include "stdafx.h"
#include <windows.h>
#include <stdio.h>
#include "winio.h"

#define DATA 0x378
#define STATUS 0x379
int _outp( unsigned short add,int val)
{
 if (SetPortVal(add,val,1))return 1;
 return 0;
}
 int inport(unsigned short add)
 {  unsigned long val;
 GetPortVal(add,&val,1);
 return val;
 }
void delay(int time)//延时
{
 
 for(int i=0;i<10*time;i++);
}

/***********void i2cstart()***********/
void i2cstart()
{
   //_outp(0x378,0xff);/*scl 1, sda 1*/
   BYTE outvalue;
   outvalue=0;  /*低电平*/
   _outp(DATA,1);
   delay(1);/**/
   outvalue=1;  /*高电平*/
   _outp(DATA,0);
   delay(1);
 
}
/***********void i2cstop()***********/
void i2cstop()
{
    BYTE outvalue;
 outvalue=1;  /*高电平*/
 _outp(DATA,0);
 delay(1);/**/
 outvalue=0;  /*低电平*/
 _outp(DATA,1);
 delay(1);/***/
}
/***********writebyte()***********/
writebyte(char s)
{
 short int a=7;
 char d,e;
 BYTE DI,DO;
 _outp(DATA,DI);/*scl 0, sda 0*/
 delay(1);/***/
 while(a>=0)
 {
 d=s>>a; d=d<<7;
 if (d=='x80')/*****"1"***/
 {
 _outp(DATA,DO);/*scl 0, sda 1*/
 delay(1);/***/
 _outp(DATA,DO);/*scl 1, sda 1*/
 }
 else
 {
 _outp(DATA,DI);/*scl 0, sda 0*/
 delay(1);/***/
 _outp(DATA,DI);/*scl 1, sda 0*/
 }
 a=(a-1);
 }
 /**ask**/
 delay(1);/***/
 _outp(DATA,DO);/*scl 0, sda 1*/
 delay(1);/***/
 _outp(DATA,DO);/*scl 1, sda 1*/
 delay(1);/***/
 _outp(DATA,DO);/*scl 0, sda 1*/
 delay(1);/***/
 e=_inp(0x379); d=e>>4; d=d<<7;
 if (d=='x0') return 0;
 else
 printf("not acknowledge!n");
 return 1;
}
/***********readbyte()***************/
char readbyte()
{
 unsigned short a=8;
 char d,e,f='x0';
 while(a>0)
 {
 delay(1);/***/
 _outp(0x378,DO);/*scl 0, sda 1*/
  delay(1);/***/
 _outp(DATA,DO);/*scl 1, sda 1*/
 delay(1);/***/
 e=_inp(0x379);
 d=e>>4; d=d<<7;
 if(d=='x80') d='x1';
 f=f<<1; f=(f+d); a=(a-1);
 _outp(DATA,DO);/*scl 0, sda 1*/
 delay(1);/***/
 }
 return f;
}
/************mainask()*****************/
void mainask()
{
 delay(1);/**/
 _outp(DATA,DI);/*scl 0, sda 0*/
 delay(1);/**/
 _outp(DATA,DI);/*scl 1, sda 0*/
 delay(1);
 _outp(DATA,DI);/*scl 0, sda 0*/
}
/*************************************/
int main(int argc, char* argv[])
{
  DWORD dwPortVal;
  DWORD dwMemVal;
  bool bResult;
  HANDLE hPhysicalMemory;
  PBYTE pbLinAddr;
  // Call InitializeWinIo to initialize the WinIo library.
  bResult = InitializeWinIo();
  if (bResult)
  {
    // Under Windows NT/2000/XP, after calling InitializeWinIo,
    // you can call _inp/_outp instead of using GetPortVal/SetPortVal
 
    SetPortVal(0x378,127, 1);
   GetPortVal(0x378, &dwPortVal, 1);
   unsigned short a,b,c,g;
 char d,e,f;
 //textcolor(2);
 //clrscr();
 printf("press 'r' or 'w' :");
 scanf("%c",&f);
 if(f=='w')
 {
  /************ W 256 BYTES ****/
  e='x0'; c=32; /* 24lc02: 32=256/8 */
  while(c>0)
  {
   i2cstart();/*****start****/
   writebyte('xa0');/***send contbyte***/
   writebyte(e);/***send start address***/
   /************W 8 bytes****/
   b=8; d='x0'; /* num */
   while(b>0)
   { if ((writebyte(d))==1) exit(0);/***send a byte***/
    b=(b-1);d=(d+1); }
   i2cstop();
   delay(40); /****writer delay****/
   c=(c-1);e=(e+8);
  }
  printf("please import write address:");
  scanf("%x",&b);
  exit(0);
 }

 if(f=='r')
 {
 /****** read ***********************************/
 printf("please import start address:");
 scanf("%x",&b);
 a=(256-b);
 c=(a%8);
 a=(a/8);
 while(a>0)
 {
  g=8;
  i2cstart();/*****start****/
  writebyte('xa0');/***send contbyte***/
  d=(char)b;/****/
  writebyte(d);/***send start address***/
  i2cstart();/*****start****/
  writebyte('xa1');/***send contbyte***/
  while(g>0){
  d=readbyte();
  if(d=='xff')
  printf(" FF");
  else
  printf(" %.2X",d);
  g=(g-1); if(g>0) mainask();
  b=(b+1);
  }
  i2cstop();
  a=(a-1);
  }
  while(c>0){
  i2cstart();/*****start****/
  writebyte('xa0');/***send contbyte***/
  d=(char)b;/****/
  writebyte(d);/***send start address***/
  i2cstart();/*****start****/
  writebyte('xa1');/***send contbyte***/
  d=readbyte();
  if(d=='xff')
  printf(" FF");
  else
  printf(" %.2X",d);
  c=(c-1); if(c>0) mainask();
  }
  printf("nREAD OK!n");
  exit(0);
  }
  else {printf("nCommand Error!!!"); exit(0);}
    ShutdownWinIo();
  }
  else
  {
    printf("Error during initialization of WinIo.n");
    exit(1);
  }
}