char *asmfunc(char *S, char c)
{
 char *r = 0;

L0:
 asm {
  mov SI,S;
  mov DL,c;
 }

L1:
 asm {
  mov AL,0;
  add AL,[SI];
  je L3;
  xor AL,DL;
  je L2;

  add SI,1;
  jmp L1;
 }

L2:
 asm mov r,SI;

L3:
 return r;
}

void main()
{ clrscr();
  char Symbol[10],chart,*res;

  printf("Input value of Symbol... ");
  gets(Symbol);
  printf("\nInput value of chart... ");
  scanf("%c",&chart);

  *res=*asmfunc(Symbol,chart);

  printf("res - %c\n",*res);
  getch();
}