list 0xA0000到0xFFFFF之间的ROM地址

来源：互联网发布：东华软件股份公司月薪编辑：程序博客网时间：2024/05/21 09:27

#include <stdio.h>

void main(void)
{
unsigned long cnt,cnt1,addr;
unsigned short seg,offset;
char fError;

cnt1 = cnt = 0x00;
        for(addr=0xFFFFF; addr>0xA0000; addr-=0x100)
{
  fError = 0x00;
                seg = (addr&0xF0000)>>4;
  offset = addr&0xFFFF;
  asm push ds
  asm push si
  asm push ax
  asm mov si,offset
  asm mov ax,seg
  asm mov ds,ax
  asm mov byte ptr ds:[si],0x55
  asm mov byte ptr ds:[si-1],0xAA
  asm mov al,byte ptr ds:[si]
  asm cmp al,0x55
  asm je ok55
  asm mov byte ptr fError,0x01
  ok55:
  asm mov al,byte ptr ds:[si-1]
  asm cmp al,0xAA
  asm je okaa
  asm mov byte ptr fError,0x01
  okaa:
  asm pop ax
  asm pop si
  asm pop ds

  if(fError)
  {
   if(cnt1)
   {
    cnt1 = 0;
    printf("/n====================/n");
    getch();
   }
                        printf("/n Error Addr:%04X-%04X",seg,offset);
   cnt++;
                        if(cnt%16 == 0)
   {
    printf("/n********************");
    getch();
   }
  }
  else
  {
   if(cnt)
   {
    cnt = 0;
    printf("/n********************");
    getch();
   }
   printf("/n OK:%04X-%04X",seg,offset);
   cnt1++;
   if(cnt1%0x10 == 0)
   {
    printf("/n====================/n");
    getch();
   }
  }
}

}