function FileEntry(DWord handle; char* code) {
  uses edi;
  m_strFill(strSource, 1, 0); //set first character as null so we can re-use for strAppend
  
  //your usual code here
  char tmp[2048];
 
  edi = strGetLine(code, @tmp);
  while(edi <> 0) {
    Ziron_ShowMessage(@tmp);

    //do some changes to line @tmp (which will be emitted to strSource
    
    emitLine(@tmp);
    edi = strGetLine(edi, @tmp);
  }  
  
  //update the internal buffer, so Ziron can handle this file with updates
  Ziron_SetFileBuffer(handle, strSource, strLen(strSource));
}

program WIN....etc

#sse off;
#mmx off;